Servomex Servotough SpectraScan 2400, Руководство пользователя

Страница: 54 / 76

SERVOTOUGH SpectraScan User Manual
02400001A/1 52
7.0.5 Stream Switching Using External Solenoid Valves
The Servomex SpectraScan Gas Analyzer is equipped with three relays connected to the 24 VDC
supply, which may be used to control external solenoid valves for the purpose of stream switching.
By default, the first two relays are used for automatic zeroing: upon initiating, a software “zero”
command the relays energize, providing 24 VDC power to external solenoid valves. Upon
completion of the zeroing process, the relays return to their default “0” state. The analyzer supplies
power to the solenoid valves at the following specifications:
Voltage: 24 VDC
Maximum current: 0.5 A
WARNING
Personal Injury: Solenoids that will be driven from the Servomex
SpectraScan solenoid output must be safety agency approved.