Precont® PU4SM

Delivery Time: not specified

Pressure transmitter for general applications and monitoring of absolute or relative pressure in gases, vapors, liquids and dust – even from harzadous areas

  • Metal membrane measuring cell for pressure ranges up to 1000 bar
  • Electronics versions with HART, IO-Link and Modbus
  • ATEX approval



The device Precont® PU4SM is an electronic pressure transmitter / pressure switch for monitoring, control and continuous measurement of pressures.

A high variety of versions of process connections and electronic types allows the use for a wide range of applications, also for demanding measuring requirements.

The front-flush process connection enables the cleanability of the wetted diaphragm to be integrated into the process.

Low-maintenance and trouble-free pressure measurement is thus also guaranteed in critical applications with viscose or also frequently changing media.

Due to its high accuracy and the digital adjustability by HART®, RS485 Modbus®-RTU or IO-Link® the device Precont® PU4SM can be suited to a wide variety of applications.

The robust design and the high-quality workmanship turns the device into a very high quality product, which even the most adverse environmental conditions cannot affect, whether the lowest temperatures when used outdoors, extreme shock and vibration stress or aggressive media.

A captive laser marking of the type label ensures the identifiability throughout the entire lifetime of the device.

Obviously is the optional marking of a measurement point designation resp. TAG, a customer label or of a neutral type label, of course also per laser marking.

A LABS- resp. silicone-free version, a factory calibration with calibration certificate and a customer specific configuration resp. preset is also optionally available like factory certifications for drink water suitability.

Customer specific special versions can be realized on request, e.g. special designs for the process connection or other process materials.

Druck Prozesstemperatur_125 Schutzart_IP69K_en Genauigkeit_0_15 Ansprechzeit
Measuring range
Nominal pressure PN -1bar…0bar / 0bar…+1000bar
-1bar…+1bar / 0bar…+1000bar
0bar…0,4bar / 0bar…+1000bar
Output type A – Current 4…20mA HART®
Analogue output 4…20mA 3,9mA…20,5mA
≥ 3,8mA
≤ 22mA
dI ≤ 1µA
Time behavior T90 ≤ 5ms
ton ≤ 0,2s
Interface HART®-compliant (7.0)
1200 Bit/s
Output type V – RS485 Modbus®-RTU
Interface RS485, bidirectional
9600 Baud (4800…38400 Baud)
Time behavior T90 ≤ 2ms
ton ≤ 0,1s
Output type L – IO-Link®
Interface IO-Link® V1.1
Com2 (38400 Baud)
Analogue output 0mA…20,5mA (at 0…20mA)
≤ 0,05mA (at 0…20mA)
≤ 22mA (at 0…20mA)
dI ≤ 1µA (at 0…20mA)
3,8mA…20,5mA (at 4…20mA)
≥ 3,6mA (at 4…20mA)
≤ 22mA (at 4…20mA)
dI ≤ 1µA (at 4…20mA)
Switch output 2x PP (Push-Pull)
switch to +L/-L
Output Uout ≤ 0,2V ≥ Us – 2V
Iout = 0mA…200mA
(current limited ≤ 450mA, short circuit protected)
Time behavior T90 ≤ 2ms
ton ≤ 0,1s
Auxiliary power
Supply voltage Us
(polarity protected)
9 V…35 V DC (with electronic output variant A)
9 V…30 V DC (Ex) (with electronic output variant A)
6 V…35 V DC (with electronic output variant V)
9 V…35 V DC (with electronic output variant L without IO-Link®)
18 V…30 V DC (with electronic output variant L with IO-Link®)
Measuring accuracy
Characteristic deviation ≤ ±0,15% FSO
≤ ±0,5%FSO
Long term drift ≤ ±0,2% FSO/year
Temperature deviation Tk Zero Span
≤ ±0,02%FSO/K (-20°C…+85°C)
≤ ±0,03%FSO/K (-40…-20°C / +85…+125°C)
Process conditions
Process temperature Standard: -40°C…+100°C
Extended: -40°C…+125°C
Pressure cycles ≥ 100Mio. (1,2xPN)
Environmental conditions
Environmental temperature -40°C…+100°C
Protection level IP69K/IP67 (EN/IEC 60529)
MTTF 463 years

Product configurator