Ametek ASR900, Installation And Maintenance Manual

Page: 70 / 92

4-18 | Heated Acid Gas Sample Probe (Large Diameter)
North American installations:
Disconnect the conduit (or TEK cable, if used) and pull back the
cable(s). If flexible conduit is used, pull it back.
European installations:
Loosen the cable gland(s) and pull back the cable(s).
3. Remove the (4) M6 x 60 screws that secure the Heater Assembly to the
HAG Probe.
Follow appropriate regulatory and/or company procedures to lock out
the analyzer while the Heater Assembly is being worked on.
4. Remove the Heater Assembly from the HAG Probe and take it to a
shop to work on it.
The Heater Assembly can be removed from the HAG Probe without
removing the Sample Probe from the sample stream.
The Heater Assembly should be worked on in a suitable shop or other
area equipped with proper tools, equipment, and materials that are
required for repairing explosion-proof devices.
5. Remove the (8) M6 x 16 screws that secure the Heater Assembly Cover
to the Heater Block.
6. Remove the Heater Assembly cover and store it in a safe loca-
tion, where the joining surface (flamepath) will not be scratched or
damaged.
IMPORTANT
When disassembling the Heater Assembly, retain all parts in a safe
location to avoid losing or damaging them. These parts, with the ex-
ception of the parts being replaced, will be required when reassembling
the Heater Assembly.

NOTE
!
WARNING

NOTE