RS560 - Diving regulator Tusa - Free user manual and instructions

Product Type	Open circuit two-stage diving regulator
Brand	Tusa
Model	RS560
First stage	R-500 (balanced piston)
Second stage	S-60 (grey)
Maximum depth	50 m (164 ft)
Minimum water temperature	10 °C (model limited to temperate waters)
Standards	EN250:2000, CE certified by RINA (notified body no. 0474)
Intermediate pressure	9.5 bar (135 PSI)
First stage outlets	4 low-pressure outlets, 2 high-pressure outlets
Housing material (2nd stage)	Super tough fiberglass reinforced nylon
Mouthpiece	High-density silicone
Supply	Compressed air only (no enriched oxygen)
Maintenance and cleaning	Rinse with fresh water (max 50°C) after each dive, annual inspection by an authorized center
Filter replacement	Every 100 dives or 1 year (by an authorized service)
Safety	Do not use in polluted water, do not breathe with short rapid breaths in cold water, open the valve slowly
Spare parts and repairability	Repair exclusively by a qualified TUSA service, use original parts
General information	Designed for sport diving, not for commercial or hookah use

Frequently Asked Questions - RS560 Tusa

What is the maximum operating depth of the RS560?

The RS560 is designed to be used to a maximum depth of 50 meters (164 feet).

Can I use this regulator in cold water?

The RS560 model is limited to water temperatures above 10 °C. Do not use it in colder waters.

How to clean my regulator after a dive?

Rinse the regulator with fresh water (max 50 °C) as soon as possible. Press the purge button several times while rinsing. Dry it and store it in a clean, dry place.

How often should I have my regulator serviced?

Tusa recommends an annual inspection and overhaul by an authorized center. In case of intensive use or in salt/chlorinated water, a service every 3 to 6 months may be necessary.

Can I use this regulator with enriched oxygen (Nitrox)?

No, use with enriched oxygen is strictly prohibited and dangerous. The regulator is designed only for compressed air.

What to do if the regulator leaks?

First check the O-ring and the mounting on the cylinder. If the leak persists, stop the dive and have the regulator checked by an authorized Tusa service.

How to install the regulator on the cylinder?

Place the yoke (or DIN adapter) on the valve, hand tighten, then slowly open the valve. Check for leaks and proper function by inhaling after exhaling into the mouthpiece.

Is the regulator CE certified?

Yes, the RS560 is CE certified according to directive 89/686/EEC and standard EN250:2000, by notified body RINA (no. 0474).

What spare parts are available?

Original parts (O-rings, filters, overhaul kits) are available only from authorized Tusa repair centers. Do not replace any parts yourself.

Can I replace the filter myself?

No, replacement of the 'air regenerator' filter must be done by an authorized Tusa service during overhaul. Never attempt to do it yourself, as this could cause a serious accident.

USER MANUAL RS560 Tusa

RS-811, RS-812, RS-860

OWNER'S MANUAL

BEDIENUNGSANLEITUNG

MANUEL D'UTILISATEUR

HANDLEIDING

MANUAL DEL PROPIETARIO

LIBRETTO ISTRUZIONI

BEFORE USING ANY TUSA REGULATOR, READ THIS MANUAL COMPLETELY.

VOR GEBRAUCH EINES TUSA-ATEMREGLERS DURCHLESEN.

AVANT D'UTILISER UN DETENDEUR TUSA, VEUILLEZ LIRE CE MANUEL

COMPLETEMENT.

LEES DEZE HANDLEIDING VOLLEDIG VOOR U UW TUSA-ADEMAUTOMAAT GEBRUIKT.

SÍRVASE LEER COMPLETAMENTE ESTE MANUAL ANTES DE UTILIZAR.

Technical diagram of a mechanical assembly with numbered components for identification

R-300

ITEM NO.	PART NO.	DESCRIPTION
1	R300-110 YOKE	KNOB
2	R300-090 YOKE
3	013 O-RING
4	HO-50 RETAINING RING
5	R300-120 FILTER
6	TR-401-38 DUST COVER
7	R300-130 YOKE RETAINER
8	R300-080 WASHER,YOKE
9	011 O-RING
10	R300-010 SPRING CONTROLLER
11	R300-020 WASHER,SPRING
12	R300-030 DIAPHRAGM SPRING
13	R300-040 LOCK NUT
14	R300-050 SPRING BASE
15	R300-060 DIAPHRAGM
16	R300-070 PROTECTOR
17	R300-140 BODY
18	R300-150 RETAINING CAP
19	014 O-RING
20	R300-160 BACK-UP PLUG
21	/R300-181 POPPET SEAT
22	BR007 BACK-UP RING
23	R300-190 BACK-UP SPRING
24	007-80 O-RING
25	R300-260 HP POPPET BUTTON ASSY
26	R300-221 ORIFICE
27	R300-210 HP PLUG
28	012 O-RING
29	R300-250 LP PLUG

R-300DIN

Exploded view diagram of a mechanical assembly with numbered components for identification

R-300DIN

ITEM NO.	PART NO.	DESCRIPTION
1 /RSU215 DIN CAP
2 R300-280 FILTER RETAINER
3 B1 12A-90 O-RING
4 S6 O-RING
5 R300-290 FILTER
6 /R300-271 NIPPLE,DIN ADAPTER
7 R300-300 HANDWHEEL,DIN ADAPTER
8 011 O-RING
9 R300-050 SPRING BASE
10 R300-060 DIAPHRAGM
11 R300-260 HP POPPET BUTTON ASSY
12 R300-140 BODY
13 R300-221 ORIFICE
14 /F300-181 POPPET SEAT
15 R300-190 BACK UP SPRING
16 R300-070 PROTECTOR
17 R300-160 BACK UP PLUG
18 BR007 BACK UP RING
19 007-80 O-RING
20 R300-150 RETAINING CAP
21 014 O-RING
22 R300-250 LP PLUG
23 012 O-RING
24 R300-210 HP PLUG
25 R300-030 DIAPHRAGM SPRING
26 R300-020 WASHER,SPRING
27 R300-330 LOCK NUT
28 R300-010 SPRING CONTROLLER
29 R300-350 PISTON
30 R300-340 END CAP

SPECIFICATIONS & PERFORMANCE DESCRIPTION
WORKING PRESSURE:	3360 PSI	232 bar: (300 bar: R-300DIN only)
INTERMEDIATE PRESSURE:	130-140 PSI	9.5 - 10.0 bar
DIMENSIONS:	LENGTH:	3.15 IN.	80 MM
	∅:	1.89 IN.	48 MM
WEIGHT:(w/o Hose)		2.2 LBS.	1000 GRAM

R-400, R-400DIN

<4> [35] 7 8 9 5 6 <30> [266] 10 <30> [266] 11 12 13 14 14 28 <5> [44] 29 30 31 32 33 34 35 36 38 37 38 39 40 <5> [44] 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 15 16 17 18 19

R-400, R-400DIN

ITEM NO.	PART NO.	DESCRIPTION
5,7,8,9,10,11,12	DIN-RS460	DIN CONVERSION KIT
1 R-400-010 DECAL
2 R-400-020 YOKE SCREW 9/16"
3 R-400-030 YOKE
4 R-400-040 FILTER RETAINER
5 R-400-050 FILTER
6 R-400-060 YOKE RETAINER
7 111 O-RING
8 R-400-080 FILTER RETAINER 300 BAR
9 R-400-090 SPRING
10 R-400-100 DIN CONNECTOR 300 BAR
11 R-100-110 DIN WHEEL 300 BAR
12 014 O-RING
13 R-400-130 SADDLE
14 011 O-RING
15 R-400-150 DUST CAP
16 R-400-160 DUST CAP (DIN)
17 R-400-170 PROTECTION CAP
18 R-400-180 DIAPHRAGM NUT
19 R-400-190 SPRING SCREW
20 R-400-200 SPRING T.I.S.
21 R-400-210 SPRING BASE
22 R-400-220 DIAPHRAGM RING
23 R-400-230 DIAPHRAGM
24 R-400-240 DISC
25 R-400-250 INSERT DISC
26 R-400-260 DIAPHRAGM PIN
27 R-400-270 BODY
28 R-400-280 PLUG H.P.
29 R-400-290 H.P. SEAT
30 R-400-300 PISTON
31 R-400-310 SLEEVE
32 R-400-320 HP.S PRING
33 R-400-330 WASHER
34 006 O-RING
35 R-400-350 BAL. CHAMBER HOLDER
36 012 O-RING
37 R-400-370 BAL. CHAMBER
38 R-400-380 WASHER
39 010 O-RING
40 R-400-400 PLUG L.P.
41		ORIFICE
42		H.P. SEAT COMPLETE
43		O-RING

SPECIFICATIONS & PERFORMANCE DESCRIPTION
WORKING PRESSURE:	3360 PSI	232 bar: (300 bar: R-400DIN only)
INTERMEDIATE PRESSURE:	130-140 PSI	9.2 - 10 bar
DIMENSIONS:	LENGTH:	5.30 IN. 135 MM
	∅:	2.72 IN. 69 MM
WEIGHT:(w/o Hose)		1.87 LBS. 850 GRAM

R-500

Technical diagram of a mechanical assembly with numbered components for identification

R-500DIN

Exploded view diagram of a mechanical assembly with numbered components for identification

R-500

ITEM NO.	PART NO.	DESCRIPTION
1	R300-110	YOKE KNOB
2	/R500-040	YOKE
3	HD-50	RETAINING RING
4	R300-120	FILTER
5	/R500-060	YOKE RETAINER
6	011	O-RING
7	TR-401-38	DUST COVER
8	/R500-110	SADDLE
9	/R500-050	LP CHAMBER PLUG
10	024	O-RING
11	/R500-030	PISTON STOPPER
12	020	O-RING
13	/R500-020	PISTON
14	/R500-090	SPACER
15	/R500-130	SPRING
16	009	O-RING
17	/R500-010	BODY
18	/R500-140	ADJ SPRING
19	/R500-080	HP SEAT
20	013	O-RING
21	/R500-070	HP SEAT PLUG
22	/R500-120	CAP
23	R300-250	LP PLUG
24	012	O-RING
25	R300-210	HP PLUG
26	/R500-100	BELT

R-500DIN

ITEM NO.	PART NO.	DESCRIPTION
1 R300-280	FILTER RETAINER
2 11 2A-90	O-RING
3 S6	O-RING
4 R300-290	FILTER
5 R300-271	NIPPLE,DIN ADAPTER
6 011 O-RING
7 R300-300	HANDWHEEL,DIN ADAPTER
8 /R50 0-110	SADDLE
9 /R500-050	LP CHAMBER PLUG
10 024 O-RING
11 /R500-030	PISTON STOPPER
12 020 O-RING
13 /R500-020	PISTON
14 /R500-090	SPACER
15 /R500-130	SPRING
16 009 O-RING
17 /R500-010	BODY
18 /R500-140	ADJ SPRING
19 /R500-080	HP SEAT
20 013 O-RING
21 /R500-070	HP SEAT PLUG
22 /R500-120	CAP
23 F300-250	LP PLUG
24 012 O-RING
25 F300-210	HP PLUG
26 /R500-100	BELT
27 /RSU215	DIN CAP

SPECIFICATIONS & PERFORMANCE DESCRIPTION
WORKING PRESSURE:	3360 PSI	232 bar: (300 bar: R-500DIN only)
INTERMEDIATE PRESSURE:......130-140 PSI		9.2 - 10 bar
DIMENSIONS:	LENGTH:	2.48 IN. 62.9 MM
	∅:	1.68 IN.	41 MM
WEIGHT:(w/o Hose)		1.543 LBS.	700 GRAM

R-600

Exploded view diagram of a mechanical assembly with numbered parts for identification

R-600

ITEM NO.	PART NO.	DESCRIPTION
1 /R600-010 BODY
2 R300-060 DIAPHRAGM
3 R300-050 SPRING BASE
4 R300-030 DIAPHRAGM SPRING
5 R300-020 WASHER SPRING
6 /R600-020 LOCK NUT
7 /R600-030 CONTROLLER
8 /R600-070 CAP
9 /R600-040 BUTTON
10 /R600-050 BOB PIN
11 R300-250 LP PLUG
12 011 O-RING
13 F300-210 HP PLUG
14 012 O-RING
15 /R500-040 YOKE
16 /R300-111 YOKE KNOB
17 /R600-080 SADDLE
18 /R500-060 YOKE RETAINER
19 /R300-120 FILTER
20 HO-50 RETAINING RING
21 F300-221 ORIFICE
22 /R300-181 POPPET SEAT
23 F300-190 BACK-UP SPRING
24 007-80 O-RING
25 /SBR007 BACK-UP RING
26 014 O-RING
27 /R600-061 BLC PLUG
28 TR-401-38 DUST COVER

R-600DIN

Exploded view diagram of a mechanical assembly with numbered parts for identification

R-600DIN

ITEM NO.	PART NO.	DESCRIPTION
1 /R600-010 BODY
2 R300-060 DIAPHRAGM
3 R300-050 SPRING BASE
4 R300-030 DIAPHRAGM SPRING
5 R300-020 WASHER SPRING
6 /R600-020 LOCK NUT
7 /R600-030 CONTROLLER
8 /R600-070 CAP
9 /R600-040 BUTTON
10 /R600-050 BOB PIN
11 R300-250 LP PLUG
12 011 O-RING
13 R300-210 HP PLUG
14 012 O-RING
15 112 A-90 O-RING
16 R300-300 HANDWHEEL,DIN ADAPTER
17 /R600-080 SADDLE
18 /R300-271 NIPPLE DIN ADAPTER
19 S6 C-RING
20 R300-290 FILTER
21 R300-221 ORIFICE
22 /R300-181 POPPET SEAT
23 R300-190 BACK-UP SPRING
24 007-80 O-RING
25 /$BR007 BACK-UP RING
26 014 O-RING
27 /R600-061 BLC PLUG
28 R300-280 FILTER RETAINER
29 /RSU215 PROTECTIVE CAP

SPECIFICATIONS & PERFORMANCE DESCRIPTION

WORKING PRESSURE:	3360 PSI	232 bar: (300 bar: R-600DIN only)
INTERMEDIATE PRESSURE:	130-140 PSI	9.2 - 10 bar
DIMENSIONS:	LENGTH:	2.48	IN.	62.9	MM
	∅:	1.61	IN.	41	MM
WEIGHT:(w/o Hose)		1.543	LBS.	640	GRAM

R-700, R-700DIN

Exploded view diagram of a mechanical assembly with numbered parts and dimension annotations

R-700, R-700DIN

ITEM NO.	PART NO. DESCRIPTION
1 /R700-010 DECAL
2 /R700-020 YOKE SCREW
3 /R700-030 YOKE
4 /R400-040 RETAINER
5 /R400-050 FILTER
6 /R400-060 YOKE RETAIN
7 /11-PUR85 O-RING
8	/R700-040 FILTER RET. 200 bar
	/R400-080 FILTER RET. 300 bar
9 /R400-090 SPRING
10	/R700-050 KNOB RET. 200 bar
	/R400-100 KNOB RET. 300 bar
11	/R700-060 KNOB. 200 bar
	/R400-110 KNOB. 300 bar
12 /014-EP85 O-RING
13 /R700-070 SADDLE
14 /011-90 O-RING
15 /R400-150 INLET PROTECT. INT
16 /R400-160 INLET PROTECT. DIN
17 /R700-080 CHAMBER AF
18 /R700-090 LOAD TRANSMITTER
19 /R400-190 SPRING SCREW
20 /R400-200 SPRING T.I.S.
21 /R700-100 DIAPHR. DISC
22 /R400-220 DIAPHR. RING
23 /R700-110 DIAPHRAGM
24 /R700-120 DIAPHRAGM. AF
25 /R400-250 DISC. MET.
26 /R400-260 DIAPHR. PIN
27 /R700-130 BODY
28 /R400-280 PLUG H.P.
29 /R700-140 ORIFICE
30 /R700-150 H.P. VALVE
31 /R700-160 SLEEVE
32 /R400-320 SPRING
33 /R400-330 WASHER CENTRING
34 /R700-170 O-RING
35 /R400-350 RING
36 /012-EP85 O-RING
37 /R700-180 BAL. CHAMBER
38 /R700-190 WASHER
39 /010-EP O-RING
40 /R400-400 PLUG L.P.
41 /R700-200 CUP
42 /R700-210 BUMPER
43 /R400-240 DISC
44 /R700-220 HP VALVE COMPL
45 /R700-230 WASHER
46 /R700-240 DIAPH. RET. AF
47 /R700-250 BUMPER AF
48 /R700-260 DECAL

SPECIFICATIONS & PERFORMANCE DESCRIPTION
WORKING PRESSURE: 3360 PSI 232 bar: (300 bar: R-700DIN only)
INTERMEDIATE PRESSURE:	130-140 PSI	9.2 - 10 bar
DIMENSIONS:	LENGTH:	5.30	IN.	135	MM
	∅:	2.72	IN.	69	MM
WEIGHT:(w/o Hose)		1.87	LBS.	850	GRAM

R-800, R-800DIN

Exploded view diagram of a mechanical assembly with numbered parts and dimension annotations

R-800, R-800DIN

ITEM NO.	PART NO.		DESCRIPTION
	R-800 R-800DIN
1 /R700-020 YOKE SCREW
2 /R800-010 DECAL
3 /R700-030 YOKE 9/16"
4 /R400-040 RETAINER
5 /R400-050 /R400-050 FILTER
6 /R400-060 YOKE RETAIN
7 /111-PUR85 O-RING
8 /R400-080 FILTER RET.300bar
9 /R400-090 SPRING
10 /R400-100 KNOB RET.300Bbar
11 /R400-110 KNOB.300bar
12 /014-EP85 O-RING
13 /R800-020 /R800-020 WASHER
14	/R400-150	/R400-150	INLET PROTECT.INT
15	/R400-160	/R400-160	INLET PROTECT.DIN
16 /R800-030 /R800-030 SADDLE
17 /R800-040 /R800-040 BODY
18	/R500-140	/R500-140	ADJ SPRING
19 /R500-080 /R500-080 HP SEAT
20	013	013	O-RING
21	/R800-060 /R800-060 HP	SEAT PLUG
22	/R500-120	/R500-120	CAP
23	/011-90	/011-90	O-RING
24	/R400-280 /R400-280 HP	PLUG
25	/010-EP	/010-EP	O-RING
26	/R400-400 /R400-400 LP	PLUG
27	/R500-100 /R500-100 BELT
28	/R800-070 /R800-070 SPRING
29	/R800-080 /R800-080 WASHER
30	009	009	O-RING
31	/R800-090	/R800-090	PISTON
32	020	020	O-RING
33	/R500-030	/R500-030	PISTON STOPPER
34	024	024	O-RING
35	/R800-050	/R800-050	LP CHAMBER PLUG

SPECIFICATIONS & PERFORMANCE DESCRIPTION
WORKING PRESSURE:	3360 PSI	232 bar: (300 bar: R-800DIN only)
INTERMEDIATE PRESSURE:	130-140 PSI	9.2 - 10 bar
DIMENSIONS:	LENGTH:	2.48	IN.	62.9	MM
	∅:	1.61	IN.	41	MM
WEIGHT:(w/o Hose)		1.543	LBS.	700	GRAM

S-11 / SS-11

Exploded view diagram of a cleaning or repair device with numbered parts for identification

S-11 / SS-11

ITEM NO.	PART NO. DESCRIPTION
1 TR-402-372 PROTECTIVE SLEEVE
2 010 O-RING
3 S-11-010 L.P. HOSE
3 S-11-240 L.P. HOSE (SS-11)
4 S-11-020 SLEEVE HOSE
5 014 O-RING
6 S-11-030 NUT. JAM
7 S-11-040 CASE
8 S-11-050 DECAL
9 S-60-040 PIN
10	S-60-060	DIAPHRAGM
11	S-60-070	DISC
12	S-60-080	DIAPHRAGM ASSY
13	S-60-090	RING
14	S-11-100 COVER
14	S-11-100Y	COVER (SS-11)
15	S-60-120 CLIP
16 RSU250 MOUTHPIECE
17	S-60-080	EXHAUST VALVE
18 S-11-110 EXHAUST TEE
19	S-60-050	ORIFICE
20	016 O-RING
21	S-11-120 LEVER
22	S-11-130 HOUSING
23	S-11-140 SEAT
24	S-11-150 POPPET
25	S-11-160 POPPET ASSY
26	S-60-270 SPRING
27	S-11-170 SPRING HOLDER
28	S-11-180 SCREW ADJ.
29	008	O-RING
30	S-11-190 SLEEVE
31	903	O-RING
32	017 O-RING
33	S-11-200 CLIP
34	S-11-210 FLOW DEFLECTOR
35	S-11-220 PLUG
36	S-11-230 DECAL
37	S-60-100	PIN

SPECIFICATIONS
DIMENSIONS:	Height:	2.48	IN.	63	MM
	Length:	4.25	IN.	108	MM
	Width:	4.17	IN.	106	MM
WEIGHT:(incl. Hose)		0.749	LBS.	340	GRAM
HOSE:	Length:	30/39	IN.	76/99	CM

S-12

Exploded view diagram of a washing machine with numbered parts for identification

S-30

ITEM NO.	PART NO. DESCRIPTION
1 TR-402-372 PROTECTIVE SLEEVE
2 010 O-RING
3 S-12-010 L.P. HOSE cm.75
4 S-12-020 SLEEVE HOSE
5 014 O-RING
6 S-12-030 NUT. JAM
7 S-11-040 CASE
8 S-12-040 DECAL
9 S-60-040 PIN
10	S-11-06 0 DIAPHRAGM
11 S-11-070 DISC
12	S-11-080	DIAPHRAGM ASSY
13	S-11-090 RING
14 S-11-100 PARGE ASSY
15	S-60-120 CLIP
16 RSU250 MOUTHP ECE
17	S-60-080 EXHAUST VALVE
18 S-11-110 EXHAUST TEE
19	S-60-050 ORIFICE
20	016 O-RING
21	S-11-120 LEVER
22	S-11-130	HOUSING
23	S-11-140	SEAT
24	S-11-150	POPPET
25	S-11-160	POPPET ASSY
26	S-60-270 SPRING
27	S-11-170	SPRING HOLDER
28	S-11-180	SCREW ADJ.
29	008	O-RING
30	S-12-050 ADJ. SHAFT
31	902	O-RING
32	S-12-060 SLEEVE
33	903	O-RING
34	017-EP	O-RING
35	S-11-200 CLIP
36	S-11-210	FLOW DEFLECTOR
37	S-12-070 RING
38	S-12-080 KNOB
39	S-12-090 KNOB ASSY
40	S-12-100 SCREW
41 S-12-110 DECAL KNOB
42	S-60-100 PIN
43	S-12-120 RING
44	S-12-130 NUT. JAM SLEEVE

SPECIFICATIONS
DIMENSIONS:	Height:	2.48	IN.	63	MM
	Length:	4.25	IN.	108	MM
	Width:	4.72	IN.	120	MM
WEIGHT:(incl. Hose)		0.793	LBS.	360	GRAM
HOSE:	Length:	30/39	IN.	76/99	CM

S-20 / SS-20

Technical diagram of a mechanical device with numbered components for identification and assembly reference.

S-20 / SS-20

ITEM NO.	PART NO. DESCRIPTION
1	S40-010,/RSU 196	MOUTHPIECE
2 RSU116 MOUTHPIECE CLIP
3 S10-111 CASE
4 S50-050 DIAPHRAGM
5 S50-040 DIAPHRAGM DISC
6 /S20-110 DIAPHRAGM COVER
7 034 O-RING
8 /S20-120 DIAPHRAGM RETAINER
9 S30-011 EXHAUST TEE
10 S30-271 EXHAUST VALVE
11 /S20-100 PLUG
12 017 O-RING
13 S30-250 SPACER
14 S14 O-RING
15	/S20-010 DEMAND HOUSING
16 S30-040 ORIFICE
17 010 O-RING
18	/S40-021 NUT RING
19 S30-030 SLEEVE
20	/S50-191 DEMAND SEAT
21	/S20-060 DEMAND STEM
22 S50-160 DEMAND SPRING
23	/S20-030 DEMAND HOUSING CAP
24	/S20-040 DEMAND STEM GUIDE
25	/S20-050 DEMAND LEVER
26	ST-003-92 WASHER
27	ST-003-02 LOCK NUT
28	/S20-090 WEDGE
29 OR106 O-RING
30	LPU067 / LPU151	L.P.HOSE(L=30")ASSY
31 TR-402-371 HOSE COVER

SPECIFICATIONS
DIMENSIONS:	Height:	2.91	IN.	74	MM
	Length:	4.05	IN.	103	MM
	Width:	4.05	IN.	103	MM
WEIGHT:(incl. Hose)		0.771	LBS.	350	GRAM
HOSE:	Length:	30/39	IN.	76/99	CM

S-30

Technical diagram of a mechanical device with numbered components for identification and assembly reference.

S-30

ITEMNO.	PART NO. DESCRIPTION
1 S30-052 DIAPHRAGM RETAINER
2 S30-100 PURGE GUARD
3 S30-081 DIAPHRAGM COVER
4 S30-062 DIAPHRAGM
5 S30-221 CASE
6 RSU116 MOUTHPIECE CLIP
7 /RSU196 MOUTHPIECE
8 S30-271 EXHAUST VALVE
9 S30-011 EXHAUST TEE
10 S30-030 SLEEVE
11 S30-260 NUT,DEMAND HOUSING
12 S30-250 SPACER
13 017 O-RING
14 010 O-RING
15 S30-040 ORIFICE
16 /S30-022 DEMAND HOUSING
17 S30-240 DEMAND SEAT
18 S30-231 DEMAND STEM
19 S30-210 DEMAND STEM GUIDE
20 S30-280 DEMAND SPRING GUIDE
21 S30-073 DEMAND LEVER
22 S30-092 DEFLECTOR
23 014 O-RING
24 S30-110 GRAND RETAINER
25 S40-060 DEMAND SPRING
26 S30-171 GRAND NUT
27 S30-120 PISTON SPRING FOLLOWER
28 S30-130 ADJ. SCREW
29 107 O-RING
30 S30-150 RETAINING SCREW
31 S30-180	CLICK RING
32 S30-141 KNOB
33 113 O-RING
34 S30-160 SCREW, KNOB
35 LPU067	L.P.HOSE(L=30")ASSY
36 OR106 O-RING
37 /TR-402-372 HOSE COVER
38 034 O-RING

SPECIFICATIONS
DIMENSIONS:	Height:	2.91	IN.	74	MM
	Length:	4.27	IN.	108.5	MM
	Width:	3.86	IN.	98	MM
WEIGHT:(incl. Hose)		0.794	LBS.	360	GRAM
HOSE:	Length:	30	IN.	76	CM

S-40

Technical diagram of a mechanical assembly with numbered components and exploded view, likely for engineering or manufacturing documentation.

S-30

ITEMNO.	PART NO.	DESCRIPTION
1 S30-052 DIAPHRAGM RETAINER
2 034 O-RING
3 S40-030 SAFTY RING
4 S10-030 PURGE BUTTON
5 S10-040 PURGE SPRING
6 S40-041 RETAINER, PURGE BUTTON
7 S40-050 DIAPHRAGM COVER
8 S30-062 DIAPHRAGM
9 S30-221 CASE
10 RSU116 MOUTHPIECE CLIP
11 /RSU196 MOUTHPIECE
12 S30-011 EXHAUST TEE
13 S30-271 EXHAUST VALVE
14 S40-080 RUBBER SLEEVE
15 /S40-021 NUT RING
16 S30-260 NUT, DEMAND HOUSING
17 S30-250 SPACER
18 017 O-RING
19 010 O-RING
20 S30-040 ORIFICE
21 S30-021 DEMAND HOUSING
22 S30-240 DEMAND SEAT
23 S30-231 DEMAND STEM
24 S30-210 DEMAND STEM GUIDE
25 S30-280 DEMAND SPRING GUIDE
26 S30-072 DEMAND LEVER
27 S30-092 DEFLECTOR
28 014 O-RING
29 S30-110 GRAND RETAINER
30 S40-060 DEMAND SPRING
31 S30-171 GRAND NUT
32 S30-120 PISTON SPRING FOLLOWER
33 S30-130 ADJ. SCREW
34 107		O-RING
35 S30-150 RETAINING SCREW
36 S30-180 CLICK RING
37 S30-141 KNOB
38 113		O-RING
39 S30-160 SCREW, KNOB
40 PU119(L=700)		L.P.HOSE ASSY
41 LPU119-030 END RING
42 S16 O-RING
43 LPU119-040 INNER TUBE
44 011 O-RING
45 TR-402-371 HQSE COVER

SPECIFICATIONS
DIMENSIONS:	Height:	2.91	IN.	74	MM
	Length:	4.27	IN.	108.5	MM
	Width:	4.06	IN.	103	MM
WEIGHT:(incl. Hose)		0.903	LBS.	410	GRAM
HOSE:	Length:	27.56	IN.	70	CM

S-50 46 44 45 29 30 31 32 33 34 35 36 37 38 39 40 23 22 21 20 19 18 17 16 15 10 17 18 19 24 25 16 26 27 28 ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ ⑩ ⑪ ⑫ ⑬ ⑭ ⑮ ⑯ ⑰ ⑱ ⑲

S-30

ITEM NO.	PART NO.	DESCRIPTION
1 /S50-241	DECAL
2 /S50-081	PURGE	BUTTON
3 S10-040	PURGE	SPRING
4 RSU146	METAL	DIAPHRAGMRETAINER ASSY
5 034	O-RING
6 S40-030	SAFETY	RING
7 S10-050	WASHER	DIAPHRAGM
8 S50-040	DIAPHRAGM	DISC
9 S50-050	DIAPHRAGM
10 S30-221	CASE
11 RSU116	MOUTHPIECE	CLIP
12 /RSU196	MOUTHPIECE
13 S30-011	EXHAUST	TEE
14 S30-271	EXHAUST	VALVE
15 S50-200	ORIFICE
16	010	O-RING
17	017	O-RING
18 S30-250	SPACER
19 S50-210	FILTER	HOUSING
20	020	O-RING
21 RSU136	ACTIVE	CARBON FILTER
22 S50-010	FILTER	CAP
23 S40-080	RUBBER	SLLEVE
24 S50-090	ADJ.SPRING
25 S50-130	WASHER	ADJ.STEM
26 S50-110	ADJ.STEM
27	906	O-RING
28 S50-120	RETAINING	PLUG
29	S14	O-RING
30 S50-020	DEMAND	HOUSING
31 /S50-191	DEMAND	SEAT
32	/S50-182	DEMAND STEM
33	S50-030	DEMAND LEVER
34 S50-170	WASHER	DEMAND STEM
35 S50-160	DEMAND	SPRING
36 S50-150	CHAMBER	DEMAND STEM
37 S50-140	DEMAND	SCREW
38 S30-092	DEFLETOR
39	014	O-RING
40 S10-070	SQUARE	NUT
41 LPU121-030		END RING
42	S16	O-RING
43 LPU121-040		INNER TUBE
44	013	O-RING
45 TR-402-371		HOSE COVER
46 LPU121 LP HOSE ASSY

SPECIFICATIONS
DIMENSIONS:	Height:	2.91	IN.	74	MM
	Length:	4.76	IN.	121	MM
	Width:	4.09	IN.	104	MM
WEIGHT:(incl. Hose)		0.97	LBS.	440	GRAM
HOSE:	Length:	27.56	IN.	70	CM

S-60 / SS-60

Exploded view diagram of a mechanical device with numbered parts for identification

S-60 / SS-60

ITEMNO.	PART NO. DESCRIPTION
1 TR-402-37 HOSE PROTECTOR
2 010 O-RING
3 S-60-030 L.P.HOSE
4 S-60-040 PIN, CASE
5 S-60-050 ORIFICE
6 S-60-060 BODY, VALVE
7 016 O-RING
8 S-60-080 EXHAUST VALVE
9 S-60-090 EXHAUST TEE
10 S-60-100 PIN, COVER EXHAUST
11 S-60-110 MOUTHPIECE, BLACK
12 0108BK MOUTHPIECE STRAP
13 S-60-130 DECAL DIVE/SURFACE
14 S-60-140 CASE
15 008 O-RING
16 S-60-160 FLOW VANE
17 S-60-170 FLOW REDUCER
18 S-60-180 PLUG
19 S-60-190 DIAPHRAGM ASSY
20 S-60-200 SLOT RING
21 S-60-210 DIAPHRAGM COVER
22 S-60-220 RETAINING RING
24 S-60-240 STEM
25 S-60-250	L.P. SEAT
26 S-60-260 POPPET
27 S-60-270 DEMAND SPRING
28 S-60-280 HOUSING
29 S-60-290 PLUG, HOUSING
30 S-60-300 INSERT, HOUSING
31 S-60-310	LEVER
32 S-60-320	WASHER
33 ST-003-02 LOCK NUT
35 S-60-350	SPACER
36 S-60-360	NUT, JAM
37 S-60-370	DIAPHRAGM RING
38 014 O-RING

SPECIFICATIONS
DIMENSIONS:	Height:	2.91	IN.	74	MM
	Length:	4.27	IN.	108	MM
	Width:	4.09	IN.	104	MM
WEIGHT:(incl. Hose)		0.33	LBS.	150	GRAM
HOSE:	Length:	29	IN.	74	CM

S-70

Technical schematic diagram of a mechanical assembly with numbered components and labeled parts

S-70

ITEM NO.	PART NO. DESCRIPTION
1 S30-300 DIAPHRAGM RETAINER
2 034 O-RING
3 S40-030 SAFTY RING
4 /S50-241 DECAL
5 /S50-081 PURGE BUTTON
6 S10-040 PURGE SPRING
7 /S70-010 DIAPHRAGM COVER
8 S30-062 DIAPHRAGM
9 S30-221 CASE
10 FSU116 MOUTHPIECE CLIP
11 /RSU196 MOUTHPIECE
12 S30-011 EXHAUST TEE
13 S30-271 EXHAUST VALVE
14 S40-080 RUBBER SLEEVE
15 /S40-021 NUT RING
16 S30-260 NUT, DEMAND HOUSING
17 S30-250 SPACER
18 017 O-RING
19 010 O-RING
20 S30-040 ORIFICE
21 /S30-022 DEMAND HOUSING
22 S30-240 DEMAND SEAT
23 S30-231 DEMAND STEM
24 S30-210 DEMAND STEM GUIDE
25 S30-280 DEMAND SPRING GUIDE
26 S30-073 DEMAND LEVER
27 S30-092 DEFLECTOR
28 014 O-RING
29 S30-110 GRAND RETAINER
30 S40-060 DEMAND SPRING
31 S30-171 GRAND NUT
32 S30-120 PISTON SPRING FOLLOWER
33 S30-130 ADJ. SCREW
34 107 O-RING
35 S30-150 RETAINING SCREW
36 S30-180 CLICK RING
37 S30-141 KNOB
38 113 O-RING
39 S30-160 SCREW,KNOB
40 LPU119(L=700) L.P.HOSE ASSY
41 LPU119-030 END RING
42 S16 O-RING
43 LPU119-040 INNER TUBE
44 011 O-RING
45 TR-402-371 HOSE COVER

SPECIFICATIONS
DIMENSIONS:	Height:	2.91	IN.	74	MM
	Length:	4.76	IN.	121	MM
	Width:	4.09	IN.	104	MM
WEIGHT:(incl. Hose)		0.97	LBS.	440	GRAM
HOSE:	Length:	27.56	IN.	70	CM

S-80

Exploded view diagram of a mechanical assembly with numbered parts for identification

S-80

ITEM NO.	PART NO. DESCRIPTION
1	/S80-010	CASE
2	/S80-020	EX TEE
3	/S80-030	EX TEE FRAME
4	/S80-040	UPPER EX TEE
5	/S80-050	UPPER EX VALVE
6	/S80-060	CHECK VALVE
7	/S80-070	FLAP
8	007	O-RING
9	/S80-080	FLAP RETAINER
10	/S80-100	KNOB RIDGE
11	/S80-090	KNOB
12	/S80-110	DEFLECTEOR
13	/S80-120	HEAT EX PLATE
14	/S80-130	DIAPHRAGM
14-1	/S80-140	DIAPHRAGM DISK
15	/S80-150	DIAPHRAGM RETAINER
16	/S80-160	HOUSING
17	S30-240	DEMAND SEAT
18	S30-231	DEMAND STEM
19	S30-210	DEMAND STEM GUIDE
20	/S80-190	FACE RING
21	/S80-210	METAL COVER
22	/S80-200	DIAPHRAGM COVER
23	/S80-220	DECAL
24	ST-004-01	MOUTHPIECE CLIP
25	/RSU196	MOUTHPIECE
26	S30-271	EXHAUST VALVE
27	S40-080	RUBBER SLEEVE
28	/S40-021	NUT RING
29	S30-260	NUT, DEMAND HOUSING
30	S30-250	SPACER
31	017	O-RING
32	010	O-RING
33	S30-040	ORIFICE
34	S30-280	DEMAND SPRING GUIDE
35	S30-073	DEMAND LEVER
36	S30-110	GRAND RETAINER
37	S40-060	DEMAND SPRING
38	S30-171	GRAND NUT
39	S30-120	PISTON SPRING FOLLOWER
40	S30-130	ADJ. SCREW
41	107	O-RING
42	S30-150	RETAINING SCREW
43	S30-180	CLICK RING
44	S30-160	SCREW,KNOB
45	LPU118(L=760)	L.P. HOSE ASSY

SPECIFICATIONS

DIMENSIONS: Height: 2.56 IN. 65 MMLength: 4.76 IN. 121 MMWidth: 4.09 IN. 104 MMWEIGHT:(incl. Hose) 0.92 LBS. 418 GRAMHOSE: Length: 30 IN. 76 CM

S-90 12 10 6 5 6 11 13 14 15 16 2 8 7 2 22 23 34 4 17 3 25 24 23 18 19 26 27 30 20 28 31 32 29 21

S-90

ITEM NO.	PART NO. DESCRIPTION
1 /S90-010 PROTECTIVE SLEEVE
2 /010-EP O-RING
3 /S90-020 L.P. HOSE	cm.75
4 /S90-030 SLEEVE HOSE
5 /S90-040 NUT. JAM	UNIF.
6 /014-EP85 O-RING
7 /S90-050 CASE
8 /S90-060 PIN. CASE
9 /S90-070 DECAL V.I.	V.A.
10 /$60-080 EXHAUST	VALVE
11 /S60-090 COVER EXHAUST
12 /S60-100 PIN
13 /S60-110 MOUTHPIECE
14 TR0-108-BK CLIP LIGHT
15 /008-EP85 O-RING
16 /S90-080 FLOW VANE
17 /S60-190 DIAPHRAGM ASSY
18 /S90-090 WASHER ANTIFRICTION
19 /S60-370 RING
20 /S90-100 PURGE COVER
21 /S90-110 RING
22 /S60-050 ORIFICE
23 /016	O-RING
24 /S90-120 HOUSING
25 /S90-130 LEVER
26 /S90-140 RETAINING CLIP KNOB
27 /S90-150 SEAT
28 /S90-160 POPPET
29 /101-EP	O-RING
30 /S90-170 POPPET ASSY
31 /S90-180 BALANCE	CHAMBER
32 /S60-270 SPRING
33 /S90-190 PLUG
34 /S90-200 PLUG

SPECIFICATIONS
DIMENSIONS:	Height:	2.91	IN.	74	MM
	Length:	4.76	IN.	121	MM
	Width:	4.09	IN.	104	MM
WEIGHT:(incl. Hose)		0.33	LBS.	150	GRAM
HOSE:	Length:	29	IN.	70	CM

FOREWORD

CONGRATULATIONS! You are now the owner of one of the many fine TUSA products. Your new regulator is built to exacting standards, using only the highest quality materials. For several years now TUSA has been developing the regulators under the ISO9001 International Quality Assurance System. You have purchased the newest, the most advanced regulator for the Sport Scuba Market available today. The TUSA regulator is the first major improvement to the conventional down stream demand valve since 1988. The second stage is constructed of technologically advanced materials and the performance provides exceptional aspiration flow and allows fully adjustable performance to accommodate beginner and professional divers.

Before you use your new regulator, please read this manual carefully. The following warnings, cautions, and notes were written to make it possible for you to enjoy your diving experience with maximum safety.

We at TUSA want you to have many years of dependable service from your new equipment and have many memorable and safe dives. Thank you for purchasing one of our high quality products.

WARNING:

THIS PRODUCT IS A SCUBA DIVING DEVICE AND REQUIRES PROPER TRAINING BEFORE USE.

CE Certified combinations of TUSA Regulators are listed below:

Name of Regulator	1st Stage Model No.	2nd Stage Safe 2nd
		Model No. C	Cover Model No
RS-340	R-300 (Yoke-DIN)	S-40	BLACK
RS-350	R-300 (Yoke-DIN)	S-50	SILVER
RS-460II	R-400II (Yoke -DIN)	S-60	BLACK
RS-520	R-500 (Yoke-DIN)	S-20	BLACK
RS-530 R-500	(Yoke-DIN) S-30 BLACK
RS-560 R-500	(Yoke-DIN) S-60	GREY
RS-670	R-600 (Yoke-DIN)	S-70	SILVER
RS-680	R-600 (Yoke-DIN)	S-80	BLACK
RS-760	R-700 (Yoke-DIN)	S-60	GREY
RS-790	R-700 (Yoke-DIN)	S-90	GREY
RS-811	R-800 (Yoke-DIN)	S-11	BLACK
RS-812	R-800 (Yoke-DIN)	S-12	BLACK
RS-860 R-800	(Yoke-DIN) S-60	GREY

Stage
Cover
SS-11	YELLOW
SS-20	YELLOW
SS-60	YELLOW

RS-460II, 560, 760, 790, 811, 812, 860

Notice:

"The PPE (Personal Protective Equipment) mentioned in this User's Manual was submitted to tests for validation of the design and certified according to Art. 10 of Directive 89/686/EEC by RINA - Via Corsica, 12-16128 Genova ITALY, Notified body n 0474. This device is in compliance with EN 250:2000.

The CE marking means the compliance of the device to the Basic Health and Safety Requirements of Annex II of Directive 89/686/EEC. The number 0098 near the CE identifies the Notified Body GL (Germanischer Lloyd), entitled for the EC quality control system for the final product according to Art. 11.A of Directive 89/686/EEC."

RS-340, 350, 520, 530, 670, 680

Notice:

"The PPE (Personal Protective Equipment) mentioned in this User's Manual was submitted to tests for validation of the design and certified according to Art. 10 of Directive 89/686/EEC by ITALCERT - Viale Sarca 336, 20126 Milano ITALY, Notified body n 0426. This device is in compliance with EN 250:2000.

The CE marking means the compliance of the device to the Basic Health and Safety Requirements of Annex II of Directive 89/686/EEC. The number 0426 near the CE identifies the Notified Body ITALCERT, entitled for the EC quality control system for the final product according to Art. 11.A of Directive 89/686/EEC."

TABLE OF CONTENTS

Technical Specification and Performance Page No.

1 R-300, R-300DIN First Stage....1
2 R-400, R-400DIN First Stage 2
3 R-500, R-500 DIN First Stage....3
4 R-600, R-600 DIN First Stage 4
5 R-700, R-700 DIN First Stage 5
6 R-800, R-800 DIN First Stage....6
7 S-11/SS-11Second Stage 7
8 S-12 Second Stage 8
9 S-20/SS-20 Second Stage....9
10 S-30 Second Stage.... 10
11 S-40 Second Stage....11
12 S-50 Second Stage 12
13 S-60/SS-60 Second Stage.... 13
14 S-70 Second Stage 14
15 S-80 Second Stage....15
16 S-90 Second Stage.... 16

SECTION

I Warning - Read Carefully ....20
II Description and Operation 21
2.0 General 21
2.1 First Stage 21
2.2 Second Stage 22
III Pre-Dive Procedures....24
IV After Dive Procedures 25
V Contaminated Water Diving 26
VI Cold Water Diving 26
VII Scheduled Maintenance 27
VIII "Air Refresher" filter replacement 28

SECTION I

WARNING READ CAREFULLY

Unless otherwise specified TUSA regulators should be used only with open circuit compressed air breathing equipment. Its use with oxygen-enriched air is not authorized and is dangerous. The compressed air must be in compliance with the standard EN 12021.

Before any attempt is made to use this regulator underwater, you MUST have received training and CERTIFICATION in the technique of sport diving from a recognized certification agency. Use of this equipment by a person who is not certified by a recognized agency shall render all warranties, express or implied, null and void. Use of regulators by uncertified or untrained persons is dangerous and can result in severe injury or death. This regulator is not intended for commercial use with surface supplied air.

Before each use, the regulator must be given a thorough visual inspection and functional test. NEVER dive with a regulator which shows signs of damage or provides substandard performance.

Always use regulator as designated combination of first stage and second stage. As inappropriate combination of first and second stages may result deterioration of performance, do not connect other second stage to these (R-300, 500, 600) first stages or vice versa.

Repair, servicing, or addition of accessories (e.g. pressure gauge) to this regulator is to be performed ONLY by a qualified TUSA Service Facility. The HP and LP outlets of the first stage have intentionally been fitted with different threads to prevent the possibility of incorrect fitting of accessories.

Always apply pressure to the regulator gradually by opening the cylinder valve SLOWLY,

NEVER lubricate any part of the regulator (especially the rubber O-ring seal between the cylinder valve and regulator) with a hydrocarbon-based lubricant.

Notice:

Model RS-340, 350, 460, 520, 530, 560, 670, 680, 760, 790, 811, 812, 860 are intended to be used up to a 50 meter (164 feet) maximum water depth only.

Model RS-520, 530, 560, 670, 680 and 860 are restricted to be used above the water temperature 10^ C.

Model RS-340, 350, 460, 760, 790, 811, 812 can be used in temperatures less than 10^ C.

SECTION II DESCRIPTION AND OPERATION

2.0 GENERAL

TUSA Regulators are BALANCED PISTON and BALANCED DIAPHRAGM type SINGLE HOSE REGULATORS. The regulator reduces high pressure air from the scuba cylinder to ambient pressure suitable for breathing, through the operation of first and second stage regulators. The first stage regulator reduces incoming high pressure air, to an intermediate pressure of approximately 135PSI ( ÷ 9.5bar). The second stage regulator, using a diaphragm operated demand valve, further reduces air from intermediate pressure to ambient pressure permitting normal breathing. The first and second stages of the regulator are connected by a low pressure hose. A swivel yoke (TYPE INT) on the first stage body secures the regulator to the cylinder valve, while an O-ring surrounding the outlet orifice on the cylinder valve ensures an airtight connection to the first stage.

2.1 FIRST STAGE

R-300 first stage

In order to achieve natural breathing, a dynamic flow hose with a large inner diameter increases the airflow. The R-300 always supplies the diver with stable air at any tank pressure or depth, delivering maximum breathing ease and comfort for them.

R-400 first Stage

The TUSA R-400 offers a first stage with the balanced diaphragm method. This method features minimum variation in intermediate pressure in response to changes in residual cylinder pressure and depth. The R-400 is engineered for cold water diving (EN-250-2000). It also offers two high high flow LP ports (HFP) that are close to the diaphragm to increase the airflow by approximately 15%.

R-500 first stage

The very popular balanced piston type first stage offers superior reliability for stable air supply regardless of depth or residual pressure.

R-600 and R-600 DRY first stage

With the R-600, offers a compact design weight of just 630g during actual use. This allows the R-670 to only be a total weight of just 1050g for the first and sec-

ond stages. The balanced diaphragm method first stage features minimum variation in intermediate pressure in response to changes in residual cylinder pressure and depth. The ports are in left-right symmetry (H.P. × 2, L.P. × 4) for easier attachment to tanks, even for beginners.

R-700 first Stage

The R-700 is a balanced diaphragm first stage with key design and performance characteristics:

1) Four intermediate pressure ports and two high pressure ports, 2) Balanced first stage, with a built-in antifreeze system, 3) Replaceable HP seat and HP poppet for durability and servicing, 4) Two special high flow LP ports (HFP) close to the diaphragm offer approximately 15% greater air flow, 5) Dry balance chamber prevents water contact with the diaphragm and the spring for superior cold water performance. The R-700 meets the European Standards EN250:2000 requirements for cold water conditions.

R-800 first Stage

The R-800 is a balanced piston type first stage offering superior reliability for stable air supply regardless of depth or residual pressure. It is equipped with four intermediate low pressure ports and two high pressure ports.

2.2 SECOND STAGE

Demand system

* The demand system is designed to significantly reduce rubbing resistance of moving parts and air resistance. The result is smoother and more natural valve opening/closing.

Light weight housing

* The second stage main unit is smaller and lighter to reduce water resistance during diving, thus reducing the load on the face during use. The main body materials are super-tough nylon (heat pliable polyamide resin) reinforced with glass fiber for outstanding hardness and shock resistance. The materials also offer superior tensile strength, dimensional stability, heat resistance, weather resistance and chemical resistance.

Intake resistance

* The second stage includes a director to forcibly guide air from the demand valve. That prevents free flow while significantly lessening intake resistance. The result is

one of the lightest intake resistance values in the industry compared with products from other companies.

New mouthpiece

The new mouthpiece, developed on the basis of ergonomic engineering, further enhances the comfort of bite, fit, and stability. Even with a light bite, a high level of stability is achieved, so there is no fatigue from long periods of usage.

Venturi Adjustment Lever (RS-460, 680, 790, 811, 812, SS-60, 80)

The addition of a venturi adjustment lever allows the regulator to power assist the diver when underwater utilizing the natural venture effect. The diver can also adjust the lever to prevent free flow such as on a surface swim.

Swivel joint (RS-340, 350, 670, 680)

For optimum performance and comfort, a swivel joint is fitted between the second stage and the joint section of the low pressure hose. The swivel joint allows flexibility of the hose for eliminate hose tension at the mouthpiece for a more natural and comfortable bite.

"Air Refresher" filter (RS-350)

There are two types of high tech filter built into the second stage. An active carbon filter cleans the air and absorbs smells, while a metal fiber filer eliminates particles as small as 100 microns. This makes sure that the cleanest and safest air is supplied to the diver.

S.E.A. -Sequential Exhaust Assist [PAT.P.] (RS-680)

The Sequential Exhaust Assist (S.E.A.) is an auxiliary exhaust valve, located on top of the S-80 elliptical case to decrease primary exhaustion resistance.

Click Spring Adjustment (RS-670, 680)

The click spring adjustment feature is exclusive to TUSA. It is a 5 position adjustment knob designed to better control breathing resistance.

Adjustable control knob (RS-812)

The adjustable knob designed to better control breathing resistance.

SECTION III PRE-DIVE PROCEDURES

WARNING

Do not attempt to connect low pressure hoses to the high pressure ports with the use of an adapter. Improper connection will cause damage to the equipment and could result in serious personal injury. Low pressure components are not intended to withstand pressures greater than 28Bar ÷ (400 PSI). When installing your accessory hoses, avoid damaging the O-ring. Tighten gently, but firmly into the first stage housing.

SCUBA complying with EN 250 are not intended for more than one user to breathe from at the same time.

If SCUBA are configured and used by more than one diver at the same time, then the cold water and breathing performances may not fulfil the requirements of EN 250.

RS-350, 340

Always connect the Octopus Regulator to the portmarked with SS. Connecting to any other port is strictly prohibited.

PRE-DIVE OPERATING INSTRUCTIONS

1. Position the tank valve so the outlet points toward the diver.
2. Remove the dust cap from the first stage inlet and place the yoke (or DIN adaptor) in the center of the cylinder valve connection.
3. Position the first stage body so that the second stage hose goes over the right shoulder of the diver.
4. Hand-tighten the yoke screw or DIN adoptorscrew.
5. Check all the hose connections to the first and second stages. If they can be loosened by hand, they should be tightened with a wrench before pressurizing.
6. Check the submersible pressure gauge to make sure it indicates zero pressure.
7. Open the tank valve slowly to gradually allow air into the regulator.

NOTE: During this operation, depress the second stage purge button to reduce shock to the valve mechanism. Do not perform this operation in a cold environment below 10^ C ( 50^ F). Performing this in a cold environment may cause “freeze-up” of the regulator which can render it inoperable. If this occurs, you should contact a TUSA authorized service center.

1. Check the submersible pressure gauge to ensure that it indicates the proper tank pressure.

2. Check the tank/regulator connection for leakage. If leakage exists, it may be caused by incorrect mounting of the regulator on the tank valve, or by a damaged O-ring in the tank valve.

3. To confirm that the regulator delivers air properly, first exhale through the mouthpiece to blow any foreign matter out of the second stage, then inhale. A few of these breathing cycles should immediately indicate proper function.
4. If you are using the second stage as an Octopus regulator, it is strongly recommended to utilize an Octopus plug to prevent any foreign matter from entering the second stage through the mouthpiece.
5. When the second stage is not in your mouth, uncontrolled air delivery can take place. This can be stopped by turning the second stage upside down and allowing it to fill with water. Should the air delivery continue, abort the dive and have the regulator inspected by a TUSA Authorized Service Center.

SECTION IV AFTER DIVE PROCEDURES

Providing the best possible preventative and routine maintenance before, after, and between dives will help to ensure the maximum life of your TUSA Regulator. To achieve this goal, there are a number of simple, yet important, routine maintenance procedures that should be followed by the diver after each use of the equipment. The following procedures should be diligently followed in order to obtain the maximum life of serviceability from your regulator.

1. After each day of diving, the regulator must be cleaned, inspected, and prepared for the next use, or for storage. As soon as the regulator is removed from the ai cylinder, reinstall the dust cap over the regulator inlet port. This cap is normally attached to the First Stage and therefore has been under water. Be sure to dry a the water out of this cap before securing it over the inlet port. Ensure that the O-ring if fitted, is in place inside the dust cap.
2. As soon as possible after diving, the regulator should be soaked in warm, not over 50^ C ( 122^ F) water to remove salt and mineral deposits. The preferred method is to attach the regulator to a charged air cylinder, open the cylinder valve, and thoroughly soak both the first and second stage regulators. Pay particular attention to directing water into the mainspring cavity of the first stage regulator, the second stage mouthpiece, and the holes in the second stage cover. Depress the purge button several times while the regulator is submerged in water. Dry the regulator by pressing on the purge button with the mouthpiece pointing down. Place the dust cap in position in the yoke, or over the DIN screw.

Soaking regulator parts in warm water will remove more salt and mineral deposits than will conventional rinsing. It will loosen deposits on interior components that rinsing will not (If no charged air cylinder is available, follow the above procedure but be very careful NOT to depress the purge button, or leave dust cap off, when the regulator is submerged in water. Failure to do this will allow water to enter both regulator stages and may result in internal corrosion).

Simply soak the entire exterior of the first stage thoroughly, and proceed as above when cleaning the second stage.

1. Store in a clean equipment box, or as an alternative, seal inside a plastic bag. Store in a clean dry place.
2. Lightly lubricate the yoke screw with silicone grease.
3. Never store the regulator while it is still connected to the diving cylinder.
4. Do not use any type of solvent to clean any part of the regulator. Do not expose any part of the regulator to silicone spray, as some aerosol propellants attack or degrade rubber and plastic material.
5. Do not carry the diving cylinder by the regulator as such abuse will eventually damage the regulator or the cylinder valve. Do not expose the regulator to unnecessary shocks or impact.

SECTION V CONTAMINATED WATER DIVING

Sophisticated diving gear designed for use in contaminated water provides constant positive pressure inside the regulator case and utilizes redundant exhaust valve passages. TUSA regulators are not designed to provide this requirement and therefore are not recommended for use in contaminated water diving.

SECTION VI RS-350/340/680/790 DRY USE IN COLD WATER DIVING

This is important information. Be sure to read it.

WARNING:

RS-350/340/680/790DRY regulators for the European market have passed the cold water performance test (water temperature: 4^ C) specified by EN250.

When using these regulators in cold water at temperatures of 10^ C or below, be sure to observe the following notices.

General Caution Items

* Before you use the regulator, be sure to receive specialized instruction on cold water diving from a diving instruction authority so that you learn the necessary skills and knowledge.

* Be sure to receive orientation for the diving environment.

* Be sure to obey the instructions of your instructors and guides.

Equipment Handling Caution Items

The conditions for freezing up of the regulator change in accordance with the breathing conditions of its user (breathing volume, breathing speed, number of breaths) and the environment conditions before and during use.

* Do not take shallow, fast breaths. It makes freezing occur more easily.

* To avoid free flow condition due to freezing NEVER push the purge button while the regulator is outside of the water.

* Store the regulator at room temperature. When diving, store your regulator in its bag to keep it warm until just before use.

* When waiting between dives, always keep your regulator warm. Do not leave it out in a cold environment.

* Your regulator may freeze depending on the conditions. If your regulator freezes, it may free flow. If it does, use breathing technique for free flow conditions.

* When diving in water temperatures of 10^ C or below, always swim at a safe depth from which you can perform an emergency swimming ascent.

SECTION VII SCHEDULED MAINTENANCE

1. Do not assume that a regulator is in good working order because of storage or infrequent use. Remember that either prolonged or improper storage can still result in internal corrosion and/or deterioration of O-ring seals.

2. Have your regulator cleaned and adjusted frequently. The frequency will depend upon the amount of use given the regulator and the conditions of use. However, TUSA strongly recommends inspection, overhaul and scheduled parts replacement at least once a year in order to ensure the optimum functioning of the regulator. Certain parts require replacement at specific intervals. This work must be carried out by a competent service facility. Use as rental equipment and/or in salt, chlorinated (swimming pool), or polluted fresh water might require cleaning and overhaul of the regulator every three to six months. Remember that chlorinated

water is an especially bad environment for regulators as the chlorine chemically deteriorates the neoprene rubber components.

1. Regularly inspect the sintered filter in the inlet port of the first-stage. If it is discolored or corroded, replacement by trained personnel is required. Also, at this point, the entire regulator may need a general overhaul with replacement of all soft seals and non-reusable components. Rust or aluminium oxide (grey powder) deposits on the sintered filter are usually an indication that salt water has entered the air cylinder and caused internal corrosion. At this time you air cylinder(s) should be internally inspected by a qualified and competent service control and then cleaned, or hydrostatically tested as required.
2. Do not disassemble your regulator. There are no adjustments which can or need to be carried out by the user. Take the regulator to a qualified TUSA dealer or service facility for service. Ensure that only original parts are used to service your regulator.

SECTION VIII "AIR REFRESHER" FILTER REPLACEMENT (RS-350)

1. The timing for replacing the filter is the same as for the equipment overhaul. TUSA strongly recommends that you have your filter replaced every 100 dives, or a year after purchase or the last overhaul (or filter replacement) regardless of the conditions of use. The TUSA repair facility will replace the filter during the overhaul, so be sure to have your equipment overhauled at the specified interval. If you have already had your equipment overhauled and only wish to replace the filter, you must also have this work carried out at a specialist outlet or TUSA facility.

2. Never try to overhaul the equipment or replace the "Air Refresher" filter yourself, as it could cause a serious accident.

FINAL NOTE

Service your Regulator often- your personal safety and the mechanical integrity of your regulator depend on it.

EINLEITUNG

T.E.C. [TABATA EUROPE CORPORATION] B.V.

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TEL [phone]/FAX [phone] (Country Code=31)

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