This document is an instruction manual for the electronic contact device of the BE4 series of pressure gauges. The product has explosion protection function, suitable for use in explosion-proof circuit.
This document provides technical specifications for the Labom BE4 series Bourdon tube pressure gauge with an electrical contact device. The gauge is designed for use in measurement and control systems to indicate and monitor pre-selectable minimum and/or maximum pressure values. It features a high-quality stainless steel case and is available in standard and safety configurations with various degrees of protection (IP 65/IP 66).
The datasheet details the mechanical construction, including the bourdon tube, pressure connections, and scale options. It also covers the electrical contact devices, which can be slow-acting, magnetic snap, or inductive, suitable for intrinsically safe circuits and functional safety classifications up to SIL 2. Nominal ranges from 0...1 bar up to 0...1600 bar are listed, along with dimensional data and ordering codes.
| Case Material | st. steel mat-no. 1.4301 (304) |
|---|---|
| Pressure Element Material | st. steel mat.-no. 1.4571 (316Ti) |
| Degree of Protection (Standard) | IP 65 |
| Degree of Protection (Safety Case) | IP 66 |
| Functional Safety Classification | SIL 2 |
| Operating Temperature (Without Filling) | -20...+60 °C |
| Operating Temperature (With Filling) | -20...+60 °C |
It is suitable for the chemical and petrochemical industry, general process technology, shipping, and machinery construction.
The device offers slow acting contacts, magnetic snap contacts, and inductive contact devices.
The standard nominal ranges go up to 0...1600 bar.