This document is the operating instructions for the Cerabar M Pressure Transmitter with analogue electronics. It includes installation, operation, maintenance, and repair information. The Cerabar M Pressure Transmitter is suitable for different mounting options and has reliable performance.
The Cerabar M pressure transmitter measures gauge or absolute pressure of gases, vapours and liquids. It is designed to meet current mechanical, technical, safety and EU standards and must be installed, connected, operated and maintained only by qualified personnel.
The manual provides detailed guidance on mechanical installation (with or without diaphragm seal), electrical connection, calibration of zero and span, start‑up procedures, and maintenance. Technical data such as signal output, power supply range, maximum working pressure and torque requirements are also listed.
| Signal output | 4…20 mA |
|---|---|
| Power supply voltage | 11.5 V – 45 V |
| Maximum working pressure (MWP) | specified on nameplate (reference 20 °C) |
| External dimension with O‑ring | 7.4 mm (0.039 in) |
| Maximum torque for welded adapter | 80 Nm |
The instrument must be installed, connected, operated and maintained only by personnel authorized by the user and suitably qualified, and all safety regulations for the measurement points must be observed.
The transmitter requires a power supply voltage between 11.5 V and 45 V.