LAR Process Analysers QuickTOC ultra - Restart after Emergency Shutodown; Connection of the Emergency Cooling for the Furnace

72 Instruction Manual QuickTOC
®
ultra
IECEx 12E5119
5 Start-up
5.13 Connection of the Emergency Cooling for the Furnace LAR | PROCESS ANALYSERS AG
unit.
Furthermore, the input signals must be disconnected when the analyser is turned off. The SR852 units
separate the input signals so that external signals can not cause explosions in hazardous areas.
All units are delivered in ex-tested enclosures.
Fig. 50: Ex-disconnector units
5.12.2 Restart after Emergency Shutodown
After restarting the analyser due to an emergency shutdown, a full system test is required:
• Oven temperature
• Carrier gas flow (leaks)
• Gas detector signals
• Injection system
• Gas cooler (primary functions)
5.13 Connection of the Emergency Cooling for the Furnace
Connect the tubing for the emergency cooling (1) of the furnace according to the figure below.