Servomex 1100A User Manual

2.35
Figure 2.15 shows suggested connections to solenoid valves. It is recommended that 3 off 2
way normally closed, electrically operated a.c. solenoid valves are used. The connections are:
Relay 1 (top) - Sample Gas
2 - Zero Gas
3 - Span Gas
4 - No connection
The logic is that when a given gas is flowing only the appropriate relay is energised while the
remaining two are not.
Ratings of the relay contacts are:
Max Power - 20VA
Max Voltage - 24OV ) Max power should
Max Current - 0.5A ) not be exceeded
Figure 2.15 Connection Of Auto-calibration Valves

Servomex 1100A Specifications

General

Brand	Servomex
Model	1100A
Category	Measuring Instruments
Language	English