Honeywell HERMetic UTImeter Gtex Chem IIC - Trouble Shooting; Safety Warning; Power Supply Troubles; Transmission Troubles

50489/GTEX Chem IIC/1805 UTImeter Gtex Chem IIC
48
10. Trouble shooting
10.1. Safety warning
As this equipment is designed and approved for use in an explosive area (intrinsic safe equipment), only
authorized service stations and the factory are allowed to repair electronic circuits.
However the customer can exchange parts and modules if the following points are observed :
1. Never open the instrument nor carry out any repair or trouble shooting in an hazardous area.
2. Use only original spare parts.
3. Work shall be done only by maintenance personnel who has an experience with intrinsically safe
equipment.
The design of the equipment is modular, i.e. in case of breakdown the customer can find out which modules
have to be replaced. The instrument consists of the following modules:
- Mechanical parts
- Sensing probe
- Tape assembly
- Display unit / electronic box
- Tape cleaner
The following sections should allow to identify the defective module and to replace it.
10.2. Power supply troubles
Symptom
Origin
Action
Section
The unit does not switch
on
Battery too low
Change the battery
10.3
Corrosion of terminals
(battery side)
Clean the battery terminals ---
Corrosion of terminals
(display unit side)
Clean the display unit terminals ---
Switch defective
Change the display unit
10.7
The unit switches on but
stops on the message
"battery"; the buzzer
tones continuously
Battery too low Change the battery 10.3
10.3. Transmission troubles
Symptom
Origin
Action
Section
"No Msg " is displayed
Sensor out of work or
Renew the sensor
10.5
Tape out of work
Renew the tape
10.4
"Invalid" is displayed
Sensor out of work
Renew the sensor
10.5
"Unknown" is displayed
Sensor out of work
Renew the sensor
10.5