Bacharach H25-IR - Manual (Page 54)

Parts &Service H25-IR
48 Instruction 3015-4342
5.4.4 Internal Filter Replacement
A filter located inside the instrument may become blocked due to dust or water being drawn into the instrument.
A blocked filter is identified by a “Search Flow Fault,” “Measure Flow Fault,” or a “No Flow” fault occurring. Refer
to Section 4.3 Fault .
Items Required:
 Replacement filter (P/N 3015-4415)
 Medium Phillips head screwdriver
Procedure:
1. Remove the instrument’s top cover as described in Section 5.4.1 Removing the Top Cover.
2. Remove the old filter by pulling off the tubing attached to the filter’s inlet and outlet ports.
3. Install the tubing removed in Step 2 onto the new filter.
4. Reassemble the instrument.
5.4.5 Optical Bench Replacement
These instructions describe how to replace the IR Optical Bench in the H25-IR Infrared Gas Leak Detector.
It is assumed that the user is familiar with the operation and menu system of the H25-IR. If necessary, refer to
Instruction 3015-4342 for detailed operation and maintenance information.
Items Required:
 Replacement IR optical bench kit:*
(800 mW) (450
mW)
o CFC, HCFC, HFC & Halogen gases ...... 3015-4253 3015-5086
o R600 ....................................................... 3015-4453 3015-5089
o SF
6
.......................................................... 3015-4282 3015-5087
o CO
2
......................................................... 3015-4605 3015-5090
 Medium Phillips head screwdriver
 Small flat blade screwdriver
 Wire cutter (for removing cable ties)
* Kit contains IR Bench of gas being detected, cable ties (Qty. 2), and this instruction sheet