PZ0023 - Sensor IFM - Free user manual and instructions

Product type	Electronic pressure sensor
Brand	IFM
Model	PZ0023 (PB5 series)
Main function	Pressure detection with N.O./N.C. switching output and LED bar graph display
Supply voltage	18 ... 30 V DC
Power consumption	≤ 50 mA
Output current	250 mA max
Electrical protection	Short-circuit, reverse polarity, overload protection
Measuring range (depending on variant)	0,05 ... 400 bar (depending on PB5xx code)
Display	Bar graph of 10 green LEDs (pressure) + 1 yellow LED (switching status)
Adjustment	High (S) and low (R) set points via SET and ENTER buttons
Hysteresis	Adjustable via gap between S and R
Materials in contact with fluid	Stainless steel 303, ceramic, FPM (Viton)
Housing material	EEPDM/X (Santoprene), FPM, NBR, PA, Pocan, PC, Stainless steel 304
Protection rating	IP 65 or IP 67 depending on variant
Ambient temperature	-25 ... +80 °C
Fluid temperature	-25 ... +80 °C
Electrical connection	M12 connector (PNP/NPN/SSDC)
Mounting	Via suitable process connection (see label "Port Size")
Programming lock	Possible by long press (10s) on both buttons
Maintenance	No specific maintenance required; clean the exterior with a dry cloth

Frequently Asked Questions - PZ0023 IFM

How to set the high set point (S)?

Press the SET S button for 5 seconds to enter programming mode. Keep the button pressed to scroll the value to the desired threshold, then confirm with ENTER S.

How to set the low set point (R)?

Press the SET R button for 5 seconds. Adjust with the same button and confirm with ENTER R.

What does the yellow LED mean?

The yellow LED indicates the switching status of the output. It is on when the output is active (pressure above the threshold).

How to interpret the green LEDs?

The green LEDs form a bar graph from 0 to 100% of the scale. The lit (steady) LEDs indicate the current circuit pressure in 10% steps, and the flashing LEDs indicate the switching threshold.

Can I use this sensor with pressurized gases?

Yes, but the maximum pressure is limited to 25 bar for gaseous fluids due to safety risks.

How to lock the device to prevent unintentional reprogramming?

Press both buttons simultaneously (SET S and SET R) for 10 seconds. The display turns off briefly to confirm locking/unlocking.

What to do if all LEDs are flashing?

This indicates a short circuit on the output. Check the wiring and absence of faults.

What is the accuracy of the sensor?

The switching point accuracy is ± 2% of the measuring range, and the repeatability is ± 0.25%.

What are the materials in contact with fluid?

The contacting parts are made of Stainless steel 303, ceramic, and FPM (Viton). Check chemical compatibility with your fluid.

How to read the pressure displayed in Display mode?

By briefly pressing SET S or SET R, the corresponding set point value is displayed in 1% steps for about 5 seconds. The value is the sum of the lit LED (10% step) and 1/10 of the value from the flashing LED.

USER MANUAL PZ0023 IFM

Electronic pressure sensor

Simple line drawing of a cylindrical device with two circular ports and a base (no text or symbols)

Controls and visual indication

1	LEDs green	display of the system pressure (lit LEDs, and of the switch-on point (flashing LED,))
2	LED yellow	switching status;lights if the output has switched
3	SET S / ENTER R button	indication and adjustment of the switch-on point (S); acknowledgement of the switch-off point (R)*
4	SET R / ENTER S button	indication and adjustment of the switch-off point (R); acknowledgement of the switch-on point (S)*

*Setting: scrolling by holding pressed; incremental by pressing briefly

Contents

Safety instructions . . . . . . . . . . . . . . . . page 12

1. Function and features ..... page 12
2. Operating modes . . . . . . . . . . . . . . . . . . page 14
3. Installation . . . . . . . . . . . . . . . . . . . . . . . . page 15
4. Electrical connection ..... page 15
5. Programming ..... page 16
6. Commissioning / Operation ..... page 17
7. Technical data ..... page 17 Scale drawing ..... page 26

Menu structure

graph TD
    A["Run Mode 10-100 OUT"] --> B["1x"]
    B --> C["display of switch-on point (S) (in 1% steps)"]
    C --> D["5s"]
    A --> E["1x"]
    E --> F["display of switch-off point (R) (in 1% steps)"]
    F --> G["5s"]
    A --> H[">5s"]
    H --> I["setting of switch-on point (S)"]
    I --> J["1x"]
    A --> K[">5s"]
    K --> L["setting of switch-off point (R)"]
    L --> M["1x"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333
    style E fill:#cff,stroke:#333
    style F fill:#ffc,stroke:#333
    style G fill:#cfc,stroke:#333
    style H fill:#ccf,stroke:#333
    style I fill:#cfc,stroke:#333
    style J fill:#fcc,stroke:#333
    style K fill:#cff,stroke:#333
    style L fill:#ffc,stroke:#333
    style M fill:#cfc,stroke:#333

Display of S / R in 1% steps)= value of the lit LED (☐)+ 1/10 of the value of the flashingLED (≡≡)		PBxxx30 ... 25 bar	7,5bar + 2bar = 9,5bar
PBxxx00 ... 400 bar	120bar + 32bar = 152bar	PBxxx40 ... 10 bar	3bar + 0,8bar = 3,8bar
PBxxx10 ... 250 bar	75bar + 20bar = 95bar	PBxxx60 ... 2,5 bar	0,75bar + 0,2bar = 0,95bar
PBxxx20 ... 100 bar	30bar + 8bar = 38bar	PBxxx70 ... 1 bar	OUT0,3bar + 0,08bar = 0,38bar

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. 25 bar.

1. Function and features

The pressure sensor detects whether a preset value has been reached or not and indicates this by a switched signal.

In addition a row of LEDs signals the current system pressure and the switch point (both in 10% steps).

□ = lit LED

= flashing LED

Applications (type of pressure: relative pressure):

	Measuring range	Order no.overl. pressure	Bursting pressure
PB5xx0 0 ...	400 bar 600 bar 100	bar
PB5xx1 0 ...	250 bar 400 bar 850	bar
PB5xx2 0 ...	100 bar 300 bar 650	bar
PB5xx3 0 ...	25 bar 100 bar 350	bar
PB5xx4 0 ...	10 bar 50 bar 150	bar
PB5xx6 0 ...	2,5 bar 20 bar 50	bar
PB5xx7 0 ...	1 bar 10	bar 30 bar

Avoid static and dynamic overpressure exceeding the given overload pressure.

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

Indication of the current system pressure as from 5% of the value of the measuring range. “All LEDs OUT” does not mean that the system is free of pressure!

The unit

• can be used as N.O. or N.C.
  • and operates with the hysteresis function.

When the system pressure is rising, the output switches when the switch-on point has been reached (S); when the system pressure is falling again, the output switches back when the switch-off point (R) has been reached.

The hysteresis can be set: First the switch-on point is set, then the switch-off point with the requested difference.

Setting range:

	Switch-on point (S)	Switch-off point (R)	in steps ofOrde
PB5xx0 20 ... 400 bar 12 ... 392	bar 4 bar
PB5xx1	12.5 ... 250 bar 7.5 ... 245 bar 2,5 bar
PB5xx2	5 ... 100 bar 3 ... 98 bar 1 bar
PB5xx3	1.25 ... 25 bar 0.75 ... 24.5 bar 0.25 bar
PB5xx4	0.5 ... 10 bar 0.3 ... 9.8 bar 0.1 bar
PB5xx6	0.125 ... 2.5 bar 0.075 ... 2.45 bar	0.025 bar
PB5xx7	0.05 ... 1.0 bar	0.03 ... 0.98 bar 0.01 bar

2. Operating modes

The unit has the following operating modes:

Run mode (normal operating mode), display mode (indication of the switch-on / switch-off point), programming mode (setting of the switch-on / switch-off point).

Run mode:

When the supply voltage has been applied, the unit is in the Run mode. It monitors and switches the transistor output according to the set hysteresis.

The green LEDs indicate the current system pressure, the yellow LED indicates the switching state of the output.

Display mode:

When the button “SET S” (or “SET R”) is pressed for a short time, the unit passes to the Display mode. Internally it remains in the operating mode. Irrespective of this the switch-on / switch-off point can be read in 1% steps.

- When the button is pressed for a short time, the corresponding value is displayed for approx. 5s; then the unit returns to the Run mode.

Programming mode:

The unit passes to the programming mode when after the selection of a parameter value (Display mode) the "Set" button is pressed until the display of the parameter value is changed. Internally the unit remains in the operating mode. It continues its monitoring function with the existing parameters until the change has been terminated.

You can change the parameter value by pressing the "Set" button and confirm it by pressing the "Mode/Enter" button. The unit returns to the Run mode when no button has been pressed for 5s.

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 only be connected by an electrician.

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

Voltage supply to EN50178, SELV, PELV.

Disconnect power before connecting the unit.

Wiring:

M12 connector DC PNP	1 BN L+ 4 BK 3 BU L- L-	3 BU L+ 4 BK 1 BN L- L-
M12 connector DC NPN	1 BN L+ 4 BK 3 BU L- L-	3 BU L+ 4 BK 1 BN L- L-
SS connector DC PNP	1 L+ 3 2 L- L-	2 L+ 3 1 L-

Core colours of ifm sockets:

1 = BN (brown), 2 = WH (white), 3 = BU (blue), 4 = BK (black).

5. Programming

Increase the switch-on point / switch-off point

1	Press the SET S-button* and keep it pressed until the requested switch point is displayed.As soon as the LED starts moving the switch point can be increased (incremental by pressing briefly or scrolling by holding pressed).		After 5s the flashing LED moves from left to right.fter LED 9 has been reached the cycle starts again at LED 0. The LED which is constantly lit moves on by one position.**
2	Press the ENTER S-button* briefly (acknowledgement).		The set switch point becomes effective; the unit passes into the operating mode.

* SET R button to set the switch-off point
ENTER R button to acknowledge the setting of the switch-off point
The switch-on point (S) is always higher than the switch-off point (R). The unit does not accept values for R which are higher than S.
**Overflow: If the flashing LED and the lit LED exceed the maximum setting value, the cycle starts again at the minimum setting value.

Decrease the switch-on point / switch-off point

Let the flashing and lit LEDs move to the maximum setting value. Then the cycle starts again at the minimum setting value.

Locking / Unlocking

The unit can be electronically locked to prevent unwanted adjustment of the set parameters: Press both pushbuttons for 10s. Indication goes out briefly (acknowledgement of locking / unlocking). Units are delivered from the factory in the unlocked state.

6. Commissioning / Operation

After mounting, wiring and setting check whether the unit operates correctly. Faults displayed during operation: All LEDs flashing in case of short-circuit.

1. Technical data

Operating voltage [V] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 ... 30 DCCurrent rating [mA]. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . short-circuit protection, reverse polarity protection / overload protection, integrated watchdogVoltage drop[ [V] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 2Current consumption [mA] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Repeatability [% of value of measuring range] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Accuracy of switch point [% of value of measuring range] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Temperature drift [% of value of measuring range / 10 K] . . . . . . . . . . . . . . . . . . . . . . . . . . . . in the temperature range [°C] . . . . . . . . . . . . . . . . . . . . . . -25 ... +80Power-on delay time [s] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.2

Materials (wetted parts) . . . . . stainless steel (303S22); ceramics; FPM (Viton)Housing material... EEPDM/X (Santoprene); FPM (Viton); NBR (Buna N); PA; Pocan; PC (Macrolon); stainless steel (304S15)Protection PB5x00 ... PB5x07 IP 65 / IIIProtection PB5x20 ... PB5x22 IP 67 / IIIProtection PB5x23 ... PB5x27 IP 65* / 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)Switching cycles min. 100 millionAmbient temperature [°C] -25 ... +80Medium temperature [°C] -25 ... +80Storage temperature [°C] -40 ... +100EMCIEC 1000/4/2 ESD: 4 / 8 KVIEC 1000/4/3 HF radiated: 10 V/mIEC 1000/4/4 Burst: 2 KVIEC 1000/4/6 HF conducted: 10 V

*Encreased protection (IP 67) with accessories (Order no. E30038).

Applications (type de pression: pression relative):

N° de commande	Etendue de mesure	Surpression admissible	Pression d’éclatement
PB5xx0 0 ...	400 bar 600 bar 1000 bar
PB5xx1 0 ...	250 bar 400 bar 850 bar
PB5xx2 0 ...	100 bar 300 bar 650 bar
PB5xx3 0 ...	25 bar 100 bar 350 bar
PB5xx4 0 ...	10 bar 50 bar 150 bar
PB5xx6 0 ...	2,5 bar 20 bar 50 bar
PB5xx7 0 ...	1 bar 10 bar 30 bar

1 = BN (brun), 2 = WH (blanc), 3 = BU (bleu), 4 = BK (noir).

5. Programmation

1 = Programmiertaste2 = Prozeßanschluß

1 = programming button2 = process connection

1 = bouton poussoir2 = montage process

1 = Programmiertaste2 = Prozeßanschluß

1 = programming button2 = process connection

1 = bouton poussoir2 = montage process