EV3M-D - Multimeter Vemer - Free user manual and instructions

Brand	Vemer
Model	EV3M-D
Product Type	TRMS Digital Multimeter (3 or 4-wire three-phase)
Power Supply	230 V AC (-15%/+10%), 50/60Hz
Voltage Input	Phase-Neutral: 300 V max; Phase-Phase: 300 V max (chained)
Current Input	Nominal 5 A, Max 6 A (via external CT)
Accuracy	Voltage & Current: ±0.5% F.S. +1 digit; Frequency: 47-63 Hz (±1 Hz)
Display	Triple 3-digit 7-segment LED (auto-ranging with k/M indicators)
Measurements	Phase voltages (L-N), line voltages (L-L), phase currents, active/ apparent/reactive power, power factor (cos φ), frequency, neutral current
CT Setting	Primary: 5 to 10000 A (step 5 up to 1000A, then step 50); Secondary fixed 5A
Wire System	Selectable 3 or 4 wires (default 4 wires)
Operating Temperature	-10°C to +45°C
Storage Temperature	-20°C to +60°C
Humidity	10% to 80% non-condensing
Insulation Voltage	4 kV between front panel and terminals
Protection Degree	IP20 (enclosure), IP51 (front panel)
Overvoltage Category	CAT III, Pollution Degree 2 (per EN 61010-1)
Wire Cross-Section	Max 6 mm² (power), 2.5 mm² (72x72 mode)
Standards Compliance	EN 61010-1, EN 61000-6-2, EN 61000-6-4; 2016/95/EC (LVD), 2014/30/EU (EMC)

Frequently Asked Questions - EV3M-D Vemer

How do I set the CT primary ratio?

With the instrument off, hold down the PRG key and power on. After 3 seconds, field 3 shows '05' flashing. Use ▲ to increase or ▼ to decrease in steps of 5 (up to 1000A) then steps of 50 (up to 10000A). Press OK to save.

How do I switch between 3-wire and 4-wire systems?

In programming mode (power on with PRG held), field 3 shows '04' flashing. Use ▲ or ▼ to select 3 or 4. Press OK to save. For 3-wire, phase voltage and neutral current pages are hidden.

What do the error messages mean?

FEE (flashing): contact Vemer support. Err Par (flashing): repeat parameter setting by power cycling with PRG held. HHH (flashing): voltage or current exceeds full scale.

How do I view system total power?

On the active (W), apparent (VA), or reactive (Var) phase power page, press OK to see system totals (e.g., 'SYS' with calculated value). Press OK again to return to phase readings.

Can I use earthing on the CT secondary?

No. The manual states: The current transformer secondary circuits CANNOT be earthed. Incorrect connection may cause flashing on active power page.

What is the maximum input current?

The nominal current is 5 A per phase, with a maximum of 6 A. The CT primary can be set up to 10000 A using an external transformer (x/5A type).

How do I navigate between measurement pages?

Press the ▼ key to go to the next page and ▲ to go back. The pages cycle: phase voltage, line voltage, phase current, active power, apparent power, reactive power, power factor, frequency, neutral current.

Why is the neutral current page showing three dashes?

If at least one phase current is out of scale (HHH), the neutral current page displays three dashes (---). Check for overcurrent or CT connection issues.

What is the power factor display?

On page 7, each phase shows cos φ with leading (L) or lagging (C) phase shift. Press OK to display system PF as 'PF SYS' with calculated value.

What are the installation requirements?

Install by a qualified expert. Use a bipolar cut-off in the power supply and an overload protection device. Ensure overvoltage category III, pollution degree 2 environment. Do not access terminals without tools.

USER MANUAL EV3M-D Vemer

Read all instructions carefully

■ The measurement instruments in the EV3M series are TRMS electronic digital multimeters to view the
main electric measurements of 3 or 4 wire three-phase systems
■ The electric measurements: voltage, current, power, power factor, frequency and neutral current are shown on three LED displays with three digits

SAFETY WARNINGS

During the installation and operation of the instrument, comply with the following instructions:
1) The product must be installed by a qualified expert.
2) Do not power or connect the instrument if it is damaged.
2) The appliance must be installed and operated in compliance with current electric systems
standards. 2) After installation, inaccessibility to the connection terminals without appropriate tools may
3) After installation, inaccessibility to the connection terminals without appropriate tools must be guaranteed.
5) Before accessing the connection terminals, verify that the leads are not live.
6) The instrument is destined for use in environments with overvoltage category ill and pollution
level 2, according to the CEI EN 61010-1 standard.
7) There must be a bipolar cut-off in the power supply network. 8) A device to protect against overloads must be installed in the electrical system under fire.
6) A device to protect against overloads must be installed in the electrical system upside from the instrument.

Code

Model Description

VE333100 EV3M-D 4 DIN digital multimeter

TECHNICAL CHARACTERISTICS

• Power supply: 230 V AC (-15%/+10%), 50/60Hz
- Input voltage: Vmax = 300V (phase-neutral)
• Maximum own consumption: voltage circuits: < 2.5 VA;
current circuits: < 2.5 VA; Input current: In = FA (nominal) max = FA (maximum).
- Input current: IN = 3A (nominal) max = 6A (maximum) - Accuracy: Alternating voltage: +0.5% F.S. +1 digit
Alternating current: ±0.5% F.S. ± 1 digit
• Frequency 47-63Hz (±1Hz)
• Alternating voltage: resolution 1V
• Alternating current: resolution 10mA
minimum display: 150mA with TA 5/5A
- Selectable TA: x/5A type (up to 10000/5A)
• Measurements taken: phase voltages (L-N); chained voltages (L-L); phase currents; phase active power
phase apparent power, phase reactive power, power factor (cosφ), frequency, neutral current
• Cross-section of leads: max 6mm² pm
max 2.5mm² on 72x72 mode
• Display: 7-segment LED display
- Operating temperature: -10 ÷ +45 °C - Operating humidity: 10 ÷ 90% noncond
• Storage temperature: -20 ÷ +60
• Insulation voltage: 4kV between accessible parts (front) and all terminals
• Degree of Protection: IP20 / IP51 on the Front Panel

INSTALLATION

• The instrument must be installed exactly as shown in the figure.
- Connection for the voltage inputs is always direct, whereas an external amperometric transformer (TA) is used for the current inputs.

Attention! The current transformer secondary circuits CANNOT be earthed.

OPERATION

- Once the instrument has been installed, the pages of the various electric measurements monitored can be viewed by pressing the ▼ key to move on to the next page, ▲ to go back to the previous page, in the following order:

Page 1: PHASE VOLTAGE (L-N)

LED V(L-N) is on

Example
field 1	230	230_u
field 2	230	238_u
field 3	230	230_u

Page 2: CHAINED VOLTAGES (L-L)

LED W(L-L) is on.

Example
field 1	300	300
field 2	300	300
field 3	300	300

Page 3: PHASE CURRENTS

LED (A) is

Example
field 1	10.8	10.8_u
field 2	0.53	0.53_u
field 3	3.00	3.00_u

Page 4: PHASE ACTIVE POWER

LED (W) is

Example
field 1	100	100
field 2	170	170
field 3	120	120

Press

the

"OK" key to view the system power as follows:

Example

field 1	P
field 2	SYS	545
field 3	390 (calculated value)	390

Press

"OK" again to go back to the phase measurement.

Page 5: PHASE APPARENT POWER

LED (VA) i

Example

field 1	100	100
field 2	170	170
field 3	120	120

Press

the

"OK" key to view the system power as follows:

Example

field 1	PA	PA
field 2	SYS	SYS
field 3	390 (calculated value)	390

Press

“OK” again to go back to the phase measurement.

Page 6: PHASE REACTIVE POWER

LED (var)

Example
field 1	38.0	38.0
field 2	16.0	16.0
field 3	24.0	24.0

Press

the

“OK” key to view the system power as follows:

Example

field 1	Pr	Pr
field 2	SYS	SYS
field 3	78.0 (calculated value)	78.0

Press

"OK" again to go back to the phase measurement.

Page 7: POWER FACTOR (cosφ)

No LEDs on and the displays show the value of cosφ measured on each phase.

Example

field 1	L.86	L = inductive phase shift	L.86
field 2	C.94	C = capacity phase shift	C.94
field 3	L.82	L = inductive phase shift	L.82

If you want to display the system power factor (PF), press the "OK" key;

Example

field 1	PF
field 2	SYS
field 3	0.80 (calculated value)	0.80

Press

“OK” again to go back to the phase measurement.

Page 8: FREQUENCY

No LEDs on and information displayed as follows

Example
field 1	F	F
field 2	50.0	50.0
field 3	(empty)

Page 9: NEUTRAL CURRENT

LED (A) is

field 1	In	In
field 2	1.4	14
field 3	(empty)

Measurement unit management

The "k" and "M" measurement units are associated with two LEDs which come on automatically

depending on the value of the measurement taken

Example (with TA 5000/5A)

I1=160A; I2=1000A; I3=2500A, the information displayed will be as follows:

L1 0.16

0.16

100

1.00

2.50

LEDs "A" and "k" are on.

PARAMETER SETTING: TA AND 3 OR 4 WIRE SYSTEM

TA setting

The value of the TA secondary is 5A and cannot be modified

To set the capacity of the primary, proceed as follows.

With the instrument turned off, hold down the "PRG" key, then power the instrument. After

approximate

field 1 Pr

field 2 ct

NOTE 2

field 3 05 (flashing)

To modify field 3 use the ▲ key (increase) or ▼ key (decrease). The value can be modified in steps

of 5 up to 10

Once you have selected your chosen capacity, press "OK" to confirm.

3 or 4 wire system setting (4 wires by default)

This second setting is used by the instrument to determine the neutral current (4 wire system).

Getting page display.

field 1 Pr

field 2 SV

(1) 2017年1月1日

field 3 04 (flashing)

To modify field 3 use the ▲ o ▼ keys. The selectable values are 3 or 4.

If you set the value 3 (three wire system), pages 1 (three-phase voltage) and 9 (neutral current) are

Not display you Press 160K11

Monitor the system. If you do not press "OK", the instrument leaves the programming mode after 30

seconds with

Subsequently, to view the TA setting, use the ▲ or ▼ arrows on page 3 (phase currents, LED "A" on)

and press "PRG" (the parameters cannot be modified on this page). To exit press "PRG" again or

(No text)

Note: THE TA MUST NOT BE EARTHED.

Incorrect TA connection

In case of incorrect connection of one or more TA, the display relating to the phase concerned by the incorrect connection flashes on the active powers page (LED (W) on).

ERROR MESSAGES

Error messages

If message EEE is shown (flashing)

please contact Vemer technical support.

If message Err Par is shown (flashing)

repeat the parameter setting procedure:

•

Out of scale message

HHH (flashing)

Means the current and/or voltage values are beyond the full scale value.

Voltage overload V>Vmax + 6%

Current overload I>In + 20% for connection via 5/5A TA (for different TAs, multiply by the

If the page displayed is not related to the measurement in overload (out of scale), phase or chained voltage or phase current, the message is nonetheless shown by flashing the value of the overall measurement (if the page displayed concerns the system) or the measurements related to the phases in overload (if the page displays the phase measurements).

Note. If at least one of the phase currents is out of scale, three dashes are displayed on the neutral current page:

(Hooking)

REFERENCE STANDARDS

ompliance with Community Directives

16/95/EC (Low Voltage)

44.10d/LS (Electromagnetic Compatibility) declared with reference to the following bar

N 61010-1, EN 61000-6-2 and EN 61000-6-4