Pressure transmitter for high-pressure industrial applications

Precont PN4SM

Pressure transmitter for industrial pressure measurement from 0…400 mbar to 0…1000 bar, with metallic diaphragm, 0/4…20 mA or 0…10 V output, up to 4 PNP switch outputs, color display and data logger.
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Introduction

In high-pressure hydraulic, pneumatic and plant systems, stable pressure values help operators keep processes under control. This pressure transmitter and pressure switch covers general industrial applications in machine and plant engineering, HVAC and refrigeration, environmental technology, building automation and the process industry.
 
Finely graduated measuring ranges from 0…400 mbar to 0…1000 bar allow close adaptation to the measuring task. The metallic diaphragm is available in flush-mounted or internal versions, with the flush-mounted process connection designed for viscous, pasty, adhesive, crystallizing, particle-laden and contaminated media that could block conventional pressure channels.
 
Local handling stays practical during commissioning and service. The graphic color display, keypad, rotatable housing and rotatable display support operation in different mounting positions, while 0/4…20 mA or 0…10 V output, up to 4 PNP switch outputs and memory for over 500,000 measured values combine process signaling and on-site data history.

Wide pressure span
Wide pressure span
Covers 0…400 mbar to 0…1000 bar for general industrial pressure tasks.
Difficult media
Difficult media
Flush diaphragm versions measure viscous, pasty, adhesive or particle-laden media.
Reliable accuracy
Reliable accuracy
Xcellence version offers accuracy down to ≤ ±0.15% of the measuring range.
Flexible signals
Flexible signals
Combines 0/4…20 mA or 0…10 V output with up to 4 PNP switch outputs.
Stored readings
Stored readings
Memory for over 500,000 measured values supports measurement history on site.
Protected housing
Protected housing
Ingress protection (IP65/IP67) supports use in demanding installations.

Features

Metallic diaphragm

The device uses a metallic flush-mounted or internal diaphragm with DMS thin-film or piezoresistive sensor technology in 316Ti/630.

Process connections

Available process connections include ISO 228-1 threaded versions with manometer or flush-mounted designs, depending on the measuring range.

Output variants

Electronics versions provide an analog current or voltage signal, with variants for 2 or 4 PNP switch outputs and 24 VDC supply.

Data logger versions

The integrated data logger records more than 500,000 measured values. A battery-backed version adds time stamp logging.

Local operation

A graphic color display and keypad provide local indication and configuration. The housing and display can be rotated for different mounting positions.

Environmental ratings

The device is specified for ambient temperatures from -20 °C to +70 °C and ingress protection (IP65/IP67) according to EN/IEC 60529.

Pressure versions

Relative pressure and absolute pressure versions are available, with absolute pressure specified for full scale values from 100 mbar.

Process temperature options

Versions are available for -40…+100 °C or -40…+125 °C with temperature decoupler.

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