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GasAlertExtreme Assembly Procedures and Replacement Parts
Assembly
| Item | Description |
| 1 | Rear shell machine screws (4) |
| 2 | Rear shell |
| 3 | Battery |
| 4 | PCB machine screws (2) |
| 5 | PCB |
| 6 | Sensor |
| 7 | Sensor screen |
| 8 | Front shell |
Replacement Parts
| Description | Order Number |
| Oxygen sensor | SR-X10 |
| CO sensor, Low H2 Sensitivity | SR-M204 |
| CO sensor | PS-RM04 |
| H2S sensor | PS-RH04S |
| PH3 sensor | SR-P04 |
| SO2 sensor | PS-RS04 |
| CL2 sensor | PS-RC10 |
| Ammonia sensor | SR-A04 |
| Extended Range NH3 sensor | SR-A204 |
| NO2 sensor | PS-RD04 |
| HCN sensor | PS-RZ10 |
| ETO sensor | SR-E04 |
| CLO2 sensor | SR-V04 |
| O3 sensor | SR-G04 |
| NO sensor | SR-N04 |
| Sensor screens | GA-SS |
| PCBs (use letter from order number) | GAXT-__-DL-PCB1 |
| Front housing yellow | GAXT-FC1 |
| Back Housing yellow | GAXT-BC1 |
| Front housing black | GAXT-FC1B |
| Back housing black | GAXT-BC1B |
| Alligator Clip | GA-AG-2 |
PCB Replacement
- Secure replacement board
- Replacement board P/N GAXT-__-PCB1
- Fill blank with monitor order number
- Example: Model GAXT-A-DL would use GAXT-A-DL-PCB1
- Fill blank with monitor order number
- Replacement board P/N GAXT-__-PCB1
- Disassemble monitor
- Discard old PCB install new PCB
- Reassemble unit
- Apply new serial number labels to back shell
- Power monitor
- Set date and calibrate
Battery Replacement
- Use Panasonic Photo CR2 batteries ONLY
- Reset date and calibrate when battery is changed