Teledyne 2240 – Portable Handheld Hydrogen Leak Detector, 3rd generation (updated 1/31/11) - Manual (Page 25)

Handheld Hydrogen Leak Detector Model 2240
Teledyne Analytical Instruments Page 25 of 30
10. Troubleshooting
Symptom Possible Cause Action
Sensor Error
The probe is
disconnected from
the controller.
Turn off the instrument
and verify that the probe
is properly connected to
the controller.
Error 88 Faulty capacitor Turn off the instrument.
Error 40
The PCB
temperature is too
high.
Turn off the instrument.
Let it cool.
Error 20
The sensor
temperature is
incorrect.
Turn off the instrument.
Battery LED is
red The battery is very
low.
Charge the battery
completely. See
Section 8.
Unit won’t turn
on The battery is
dead.
Charge the battery
completely. See
Section 8.
If the recommended action does not solve the problem, the
MODEL 2240 should be returned to the factory for repair.