PX3228 - Sensor IFM - Free user manual and instructions

Product Type	Electronic Pressure Sensor
Brand	IFM
Model	PX3228
Measuring Range	0 to 100 inH2O (relative pressure)
Permissible Overload Pressure	4015 PSI
Bursting Pressure	12043 PSI
Output Signal	4 to 20 mA (current output)
Operating Voltage	9.6 to 32 V DC (SELV, PELV)
Maximum Load	(UB - 9.6) × 50 Ω; max 720 Ω at 24 V DC
Step Response Time	3 ms
Accuracy	< ±0.35% BFSL / < ±0.75% FR
Repeatability	< 0.15% of full range
Temperature Coefficients (0–80°C)	Zero: 0.2% / 10°C; Span: 0.3% / 10°C
Housing Material	Stainless steel (316S12), FPM (Viton), PA, EPDM/X (Santoprene)
Wetted Parts Material	Stainless steel (303S22), ceramics, FPM (Viton)
Operating Temperature	-25 to +80 °C
Medium Temperature	-25 to +90 °C
Storage Temperature	-40 to +100 °C
Protection Rating	IP 65
Protection Class	III
Process Connection	1/4 NPT (tightening torque 25 Nm)
Accessories	Sockets and connectors available at www.ifm.com

Frequently Asked Questions - PX3228 IFM

What is the measuring range of the IFM PX3228 pressure sensor?

The PX3228 measures relative pressure from 0 to 100 inH₂O (inches of water column). It is designed for low-pressure applications.

What type of output signal does the PX3228 provide?

The PX3228 provides a 4 to 20 mA analog output (current output). This is typical for industrial sensors, allowing long cable runs and easy integration with PLCs.

What is the maximum operating pressure for the PX3228?

The maximum permissible overload pressure is 4015 PSI, and the bursting pressure is 12043 PSI. Exceeding these values can cause permanent damage or injury.

What is the supply voltage requirement for the PX3228?

The sensor operates on a 9.6 to 32 V DC supply (SELV/PELV). The maximum load resistance depends on the supply voltage: (UB - 9.6) × 50 Ω, up to 720 Ω at 24 V DC.

How should I install the IFM PX3228 pressure sensor?

Ensure no pressure is applied to the system before mounting. Use a suitable 1/4 NPT process connection and tighten to 25 Nm. Avoid mechanical force on the pressure relief mechanism (if present). For electrical connection, disconnect power first and follow the wiring diagram.

What materials come into contact with the measured medium?

The wetted parts are made of stainless steel (303S22), ceramics, and FPM (Viton). The housing is stainless steel (316S12) with FPM, PA, and EPDM/X seals. Ensure compatibility with your media.

Can the PX3228 be used for gaseous media?

Yes, but the application is limited to a maximum of 363 PSI for gaseous media. For higher pressures, use only liquid media. Always check material compatibility.

What is the protection rating of the PX3228?

The PX3228 has an IP 65 protection rating, meaning it is dust-tight and protected against water jets. It is suitable for harsh industrial environments.

How do I connect the electrical wiring for the PX3228?

Connect according to the diagram: for current output (PX3xxx), use the 4-20 mA loop. The sensor requires a power supply of 9.6-32 V DC. Disconnect power before wiring. Use an isolating transformer with a listed fuse if required for cULus compliance.

Where can I find accessories or connectors for the PX3228?

Visit the IFM website at www.ifm.com and navigate to Products → Accessories to find compatible sockets, connectors, and cables for the PX3228 sensor.

USER MANUAL PX3228 IFM

Installation Instructions

Electronic pressure sensor

efectorsoo®

PX3111

PX322x

PX323x

PX3244

PX3422

PX911x

PX913x

Technical line drawing of a mechanical component with hexagonal base and threaded top (no text or symbols)

Contents

1 Safety instructions ....2
2 Function and features ....4
3 Installation....5
4 Electrical connection ....5
5 Scale drawing 6
6 Technical data....8

1 Safety instructions

Please read the product description prior to installing the unit. Please check that the product is suitable for your application without any restrictions.

If the operating instructions or the technical data are not adhered to, personal injury and/or damage to property may occur.

Please check in all applications that the product materials (see Technical data) are compatible with the media to be measured.

For gaseous media the application is limited to max. 363 PSI.

High-pressure units (5000 PSI) are supplied with a pressure relief mechanism and an integrated damping device to comply with the regulations for UL approval and to avoid any risk of injury in case of bursting when bursting pressure is exceeded.

Any manipulation of the damping device is not permissible.

When the damping device is removed, there is no damping function any more. ATTENTION: risk of injury!

For units with cULus approval this approval becomes invalid when the damping device is removed.

For units with cULus approval and the scope of validity cULus:

The device shall be supplied from an isolating transformer having a secondary Listed fuse rated as noted in the following table.

Overcurrent protection
Control-circuit wire size		Maximum protective device rating Ampere
AWG (mm)	^2
26 (0.13) 1
24 (0.20) 2
22 (0.32) 3
20 (0.52) 5
18 (0.82) 7
16 (1.3) 10

The Sensor shall be connected only by using any R/C (CYJV2) cord, having suitable ratings.

2 Function and features

The pressure sensor detects the system pressure and converts it into an analog output signal.

• 0 to 10 V (PX9xxx)
  • 10 to 0 V (PX9119)
  • 4 to 20 mA (PX3xxx)
  • 20 to 4 mA (PX3229)

Applications (type of pressure: relative pressure)

Order no.	Measuring range	Permissible overload pressure	Bursting pressure
	PSI PSI PSI
PX3220PX9110	0 to 5000 11600	17400
PX3111PX9111	0 to 3000 5800	12300
PX3222PX9112	0 to 1000 4350	9400
PX3223 0 to	500 2175 5075
PX3224PX9114	0 to 100 1087 2175
PX3244 0 to	150 1087 2175
PX9134 0 to	200 1087 2175
PX3226PX9116	0 to 30 290 725
PX3237 0 to	20 145 450
PX3227PX9117	0 to 15 145 450
PX3238	0 to 5	145 450
PX3229PX9119	-14.5 to 0 (vacuum)	145 450
PX3422	-14.5 to 735.5	4350 9400
	inH2O	inH2O	inH2O
PX3228PX9118	0 to 100 4015	12043

Avoid static and dynamic overpressure exceeding the given over-load pressure.

Even if the bursting pressure is exceeded only for a short time the unit can be destroyed (danger of injuries)!

3 Installation

Before mounting and removing the sensor, make sure that no pressure is applied to the system.

Mount the pressure sensor on a suitable process connection (see type label "Port Size").

4 Electrical connection

The unit must be connected by a qualified electrician.

The national and international regulations for the installation of electrical equipment must be adhered to.

Voltage supply to EN50178, SELV, PELV.

▶ Disconnect power before connecting the unit as follows:

Voltage output (PX9xxx)

Current output (PX3xxx)

For information about available sockets/connectors see:

www.ifm.com → Products → Accessories

5 Scale drawing

PX3220 PX9110 PX3111	PX9111
	PX3222 PX9112
	PX3422
1: Pressure relief mechanismNo mechanical force must be exerted onthe pressure relief mechanism.

dimensions are in millimeters (25.4 mm = 1 inch) process connection 1/4 NPT, tigtening torque 25 Nm

PX3223 PX9114PX3224 PX9116PX3244 PX9117PX3226 PX9118PX3227 PX9119PX3228 PX9134PX3229	PX3237PX3238
1: Ventilation 1: Ventilation

dimensions are in millimeters (25.4 mm = 1 inch) process connection 1/4 NPT, tigtening torque 25 Nm

6 Technical data

PX3xxxOperating voltage [V]....9.6 to 32 DC1)Analog output....4 to 20 mALoad [Ω]....max. (UB- 9,6) x 50; 720 at UB= 24 V DCTep response time analog output [ms]....3

PX9xxxOperating voltage [V]....16 to 32 DC1)Current consumption [mA]....< 18Analog output....0 to 10 V DCLoad [Ω]....min. 2000Step response time analog output [ms]....3

Characteristics deviation (in % of full range)PX3111, PX9111 ....< ± 0.35 (BFSL) / < ± 0.75 (FR)PX3220, PX3222, PX3223, PX3422, PX9112 ....< ± 0.35 (BFSL) / < ± 0.75 (FR)PX3224, PX3244, PX9114 ....< ± 0.35 (BFSL) / < ± 0.75 (FR)PX3226, PX9116....< ± 0.35 (BFSL) / < ± 0.75 (FR)PX3227, PX3237, PX3238, PX9117 ....< ± 0.25 (BFSL) / < ± 0.5 (FR)PX3228, PX9118....< ± 0.35 (BFSL) / < ± 0.75 (FR)PX3229, PX9119....< ± 0.25 (BFSL) / < ± 0.5 (FR)PX9110....< ± 0.35 (BFSL) / < ± 0.75 (FR)PX9134....< ± 0.35 (BFSL) / < ± 0.75 (FR)Repeatability (in % of full range)PX3111, PX9111....< 0.15PX3220, PX3222, PX3422, PX9112....< 0.15PX3224, PX3244, PX9114....< 0.15PX3226, PX9116....< 0.15PX3223, PX3227, PX9117....< 0.1PX3228, PX9118....< 0.15PX3229, PX9119....< 0.1PX3237, PX3238....< 0.15PX9110....< 0.15PX9134....< 0.1

^1) to EN50178, SELV, PELV BFSL = Best Fit Straight Line / FR = full range

Temperature coefficients (TEMPCO) in the compensated temperature range 0 to 80°C(in% of full range/10 °C); greatest TEMPCO of the zero point / of full rangePX3111, PX9111....0.2 / 0.3PX3220, PX3422, PX9110....0.3 / 0.4PX3222, PX9112....0.2 / 0.3PX3223....0.2 / 0.3PX3224, PX3244, PX9114....0.2 / 0.3PX3226, PX9116....0.2 / 0.3PX3227, PX9117....0.15 / 0.2PX3228, PX9118....0.2 / 0.3PX3229, PX9119....0.15 / 0.2PX3237....0.2 / 0.4PX3238....0.3/ 0.5PX9134....0.15 / 0.2

Housing material....stainless steel (316S12); FPM (Viton); PA; EPDM/X (Santoprene)Materials (wetted parts)....stainless steel (303S22); ceramics; FPM (Viton)Operating temperature [°C]....-25 to +80Medium temperature [°C]....-25 to +90Storage temperature [°C]....-40 to +100Protection....IP 68 / IP 69K2)Protection....IP 673)Protection....IP 654)Protection class....IIIInsulation resistance [MΩ]....>100 (500 V DC)Shock resistance [g]....50 (DIN / IEC 68-2-27, 11ms)Vibration resistance [g]....20 (DIN / IEC 68-2-6, 10 - 2000 Hz)

EMCEN 61000-4-2 ESD:....4 kV / 8 KV ADEN 61000-4-3 HF radiated:....30 V/mEN 61000-4-4 Burst:....2 KVEN 61000-4-6 HF conducted:....10 VRadiation of interference: according to the road vehicle guideline 2004/104/EC / CISPR25Noise immunity:....according to the road vehicle guideline 2004/104/EC / ISO 11452-2HF conducted:....100 V/mPulse resistance:....according to ISO7637-2 / severity level 3

^2) for PX3111, PX3220, PX3222, PX3422, PX9110, PX9111, PX9112,
^3) for PX3237, PX3238
4) for PX3223, PX3224, PX3226, PX3227, PX3228, PX3229, PX3244
PX9114, PX9116, PX9117, PX9118, PX9119, PX9134

More information at www.ifm.com