Maintenance
H25-IR PRO Instruction Manual
92
P/N: 3015-5678 Rev 6
6.5. NDIR Sensor Replacement
These instructions describe how to replace the NDIR sensor in the H25-IR PRO Infrared Gas Leak Detector. It is assumed that
the user is familiar with the operation and menu system of the H25-IR PRO.
Table 6-9. Items Required for NDIR Sensor Replacement
Item
Description
1
Replacement NDIR Sensor Kit which contains NDIR Sensor and 3 cable ties (see table below)
2
Medium Phillips head screwdriver
3
Wire cutter (for removing cable ties)
4
Two sets of needle nose pliers (or equivalent) to release and re-install the tubing clamp
Table 6-10. Replacement NDIR Sensor Kit
Model
Sensor Kit
Reference Sensor P/N
Nominal Emitter Power
CFC, HCFC, HFC, and Halogen gases
3015-4501
3015-5086
325 mW
R600, R290
3015-4502
3015-5089
540 mW
SF6
3015-4561
3015-5087
450 mW
CO
2
3015-4562
3015-5090
450 mW
NOTE:
Only replacement sensor
kits
are available for sale,
not
individual sensors. As such, the reference sensor
part numbers in the previous table are for identification purposes only. For example, to order a replacement kit
for your sensor which is labeled model number 3015-5086, place order for kit number 3015-4501.
Table 6-11. NDIR Sensor Replacement Procedure
Step
Description
1
Remove both the front and rear bezels by first disengaging the plastic tabs on the right and left sides of the
bezel, and then pulling the bezel straight out.
2
Remove the top two screws that secure the front panel, and the top two screws that secure the rear panel.
3
Find the seam at the side of the enclosure
nearest the top. Using your fingers gently
pry up on one side of the enclosure lid. The
lid will disengage and swing upward, leaving
the opposite side of the lid engaged. With
the lid freely moving in the opposite side,
gently lift up the front and rear edges of the
lid to fully disengage it. Set it to one side
and continue with the replacement.
Figure 6-4. Removing the Top Cover
4
Cut off the three cable ties that secure the NDIR sensor to the chassis, and remove the sensor from the
Summary of Contents for H25-IR PRO
Page 6: ...H25 IR PRO Instruction Manual vi P N 3015 5678 Rev 6 ...
Page 8: ...H25 IR PRO Instruction Manual viii P N 3015 5678 Rev 6 ...
Page 39: ...H25 IR PRO Instruction Manual Menu System Overview P N 3015 5678 Rev 6 29 ...
Page 109: ...H25 IR PRO Instruction Manual Maintenance P N 3015 5678 Rev 6 99 ...
Page 120: ...H25 IR PRO Instruction Manual Declaration of Conformity P N 3015 5678 Rev 6 110 ...