INFICON Sensistor ILS500 Leak Detection System - Manual (Page 24)

24 Setup
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Avoid to place the ILS500 close to hydrogen sources such as cigarette smoke,
combustion engines, aluminum machining, lead battery charging stations and
compressed air systems.
6.2 Electrical Connections
6.2.1 Setting Up an Emergency Stop
You have the following two options to prepare the ILS500 for start:
• Connect the ILS500 through an external emergency stop relay.
• Short circuit the SAFE SPLY terminal to “+24 V” on the Safety Connector.
Use the Safety Override Loopback delivered with the unit.
Caution
To short-circuit is not recommended and should only be made for preliminary testing
before connecting compressed gases or test tooling with moving parts.
Notice ILS500 will not start testing unless an emergency circuit has been
installed.