WARNING
Danger from gas lines under pressure
Danger of injury during maintenance work
Hot, toxic or corrosive sample gases can be released when the gas lines are opened. Prevent
gases from exiting prior to opening or removing the device.
• Do not loosen process connections and do not remove any pressurized parts while the
device is under pressure.
• Depressurize the device. Shut o the gas inlets and gas outlets. Disconnect the gas lines
from the device.
• Before opening or removing the device, ensure that process media cannot be released.
CAUTION
Hot surfaces resulting from hot sample gases and heated devices
Danger of burns resulting from surface temperatures above 70°C (155°F)
After being switched o, the device and its parts are still very hot. Touching can result in skin
burns.
• Begin the maintenance / shutting down once the device has cooled o.
• Take appropriate protective measures, for example contact protection.
12.2 Decommissioning the device
Procedure
1. Ensure that gas is no longer owing through the device. Shut o all gas lines to the device.
Ensure that no hazardous gases escape when removing the gas lines to the device.
2. If external pumps are present, switch all of them o.
3. Purge the sample gas path with air.
4. Isolate the device from power. Disconnect the connection to the power supply.
5. Unscrew all the gas connections.
6. Remove the analyzer module, as described in the section "Removing analyzer modules,
standard version (Page76)".
7. Remove the option modules, see section "Installing option modules (Page 81)", reverse order
8. Ensure that the device cannot be started up again unintentionally.
Decommissioning, dismantling and disposal
12.2Decommissioning the device
Wall-mounted device
158 Operating Instructions, 07/2023, A5E31930403-AB
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