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GTD-2000ExW
Instruction Manual
8. Troubleshooting
8.1. Fault List
FAULT MESSAGE
DESCRIPTION & CONDITION
CAUSE
FAULT1
"SEN EMPT"
Occurs when sensor module is disconnected.
Defective Sensor Module Connection
FAULT2
"SEN HIGH"
Toxic sensor output is above ADC max. value.
Defective sensor module or transmitter board ADC
FAULT3
"SEN LOW"
Toxic sensor output is below ADC min. value.
Defective sensor module or transmitter board ADC
FAULT4
"EROM ERR"
Defective Transmitter EEPROM Checksum
Defective Transmitter board EEPROM
FAULT5
"+24V LOW"
It occurs when 24 V main input power is inputed
with voltage below 10 V.
Input power below 17 V or defective Transmitter
ADC
FAULT6
"ADC FAIL"
Defective Transmitter ADC
Defective Transmitter ADC
FAULT7
"H/W REV"
H/W Version Error
Defective MPU inside Transmitter
FAULT8
"SEN HUNT
When there is repeated hunting error in gas
measurement, sensor output status may be poor or
check for input power noise.
[Table 5. Fault List]
8.2. Recovery List
[Table 6. Recovery List]
NO
CAUSE
SOLUTION
1
Defective Sensor Module Connection
1) Check Sensor Connection and Connection status of the Connector
2) Change Sensor
2
Defective Sensor Module
Change Sensor
3
Defective Transmitter Board ADC
Change Transmitter Board
4
Defective Transmitter Board EEPROM
1) Perform Factory Initialization then correct parameter and re-calibrate
2) Change sensor unit when the same problem occurs again
5
Defective MPU inside Transmitter
Change Transmitter Main Board
6
Poor Sensor Output Status
Change Sensor
7
Check Input Power Noise
Check External Input Voltage Noise Status
9. Drawings and Dimensions
9.1. Standard Type
[Figure 12. GTD-2000ExW Standard Type Drawing]
