H25-IR PRO External Filter Retrofit
2
P/N: 3015-9004 Rev 0
SECTION
1
: INTRODUCTION
1.1. Purpose
The previous generation of the H25-IR Pro leak detector had an internal filter that required disassembly for replacement.
This was changed in the newer model of the H25-IR Pro to an external filter found at the rear of the instrument. The
purpose of this document is to explain the procedure for upgrading an older-style H25-IR Pro leak detector to include the
newer external filter.
Figure
1-1.
Back Panel Comparison of Previous and Current Generations of the H25
-
IR Pro
1.
2
.
Required Tools
The following items are required to complete the retrofit.
Item
Description
Function
1
Cross-type screwdriver (#2 size)
Chassis access and audio PCB removal
2
Flat blade screwdriver
Power entry module removal
3
¼” wrench or nut driver
RS-232 connector removal
4
1/16” (1.5 mm) hex key (provided)
RS-232 connector removal
5
8 mm open-end wrench
Speaker removal
6
Needle nose pliers
Aid in connecting the sample entry tubing
Figure
1-
2
.
Tools Required to Complete the H25
-
IR Pro External Filter Retrofit
