Chapter 6 Troubleshooting; Troubleshooting Guide; Table 6-1. Troubleshooting - Thermo Scientific TVA2020 Instruction Manual

Troubleshooting

Troubleshooting Guide

Troubleshooting
6-2 TVA2020 Instruction Manual
Table 6–1
checks that you should perform if you experience an instrument problem.
Guide
Table 6–1. Troubleshooting
Problem
Unit will not turn on
Pump won't turn on
Low pump flow
Keypad will not respond
Probe display blank or
probe buttons will not
respond
FID won't ignite
provides general troubleshooting information and indicates the
Possible Reason
Battery charge low
Bad battery connection
Bad battery
Blown fuse or faulty keypad
Defective pump
Faulty keypad
Clogged sample intake
Pump fault
Faulty keypad
Faulty probe/display assembly
Insufficient sample flow
Insufficient hydrogen supply
(<500 psi)
Hydrogen leak
Solution/Action
Charge battery.
Ensure proper battery
connection.
Replace battery.
Call Thermo Fisher Scientific
Service Department.
Call Thermo Fisher Scientific
Service Department.
Call Thermo Fisher Scientific
Service Department.
Clean/replace filter cups.
Clean/replace sample line.
Clean/replace flame arrestor.
Service pump.
Call Thermo Fisher Scientific
Service Department.
Call Thermo Fisher Scientific
Service Department.
Replace probe/display
assembly.
Call Thermo Fisher Scientific
Service Department.
Turn pump on.
Clean/replace filter cups.
Clean/replace flame arrestor.
Service pump.
Check hydrogen gauge on
supply tank. Refill tank if
necessary.
Check low pressure hydrogen
output gauge. If <8 psi, call
Thermo Fisher Scientific
Service Department.
Thermo Fisher Scientific