Spectrasensors OXY5500, Operator'S Manual, Page: 121 / 140

Troubleshooting & Maintenance
OXY5500 Operator’s Manual B
–
5
Replacing the Electro-Optical Module
Use the following procedure to replace and install the electro-optical module in
the OXY5500 analyzer.
Required tools and hardware
•
Flathead screwdriver
•
Phillips screwdriver
•
Electro-optical module (P/N
EX0800000020)
To remove the electro-optical module:
1. Turn off power to the analyzer and open the enclosure door using a
standard flathead screwdriver to unlatch the lock.
2. Disconnect the ribbon cable from the keypad and set aside.
3. Disconnect the probes, power supply and pressure sensor from the
terminal blocks, as necessary. Refer to “Installation” on page 2-1.
4. Insert a flathead screwdriver into the clip extension at the top of the
electro-optical module as shown in Figure B–3.
Table B–1 Fuse specifications
Description Rating
Cartridge fuse, 216 Series, 5 x 20 mm, Fast Act 800 mA, 250V
Photographs shown in this instruction are used to provide a
clearer illustration of the required steps only. DO NOT REMOVE
the base plate from the analyzer enclosure to complete this
instruction.