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8 TROUBLESHOOTING
151
66
Conducti
vity
Span calibration
Mismatched calibration
results
Reset calibration value and
reexecute calibration.
Mismatching calibration
solution
Check calibration solution and
reexecute calibration.
Connection failure in
conductivity sensor
connector
Inspect conductivity sensor
connection.*
Conductivity sensor
expiration or failure
Replace electric-conductivity
sensor.
Internal analog circuit board
failure
Replace internal analog circuit
board (TW-ADC-01).*
67
Analyzer
abnormality
Mismatched calibration
results
Perform calibration.
Dirt in conductivity sensor
Clean conductivity sensor.
Conductivity sensor
expiration or failure
Replace electric-conductivity
sensor.
Internal analog circuit board
failure
Replace internal analog circuit
board (TW-ADC-01).*
70
Water
temperat
ure
Concentration
upper limit
Sample water temperature
abnormality
Check sample water temperature.
Connection failure in water
temperature sensor
connector
Inspect water temperature sensor
connection.*
Water temperature sensor
failure
Replace water temperature
sensor.*
Internal analog circuit board
failure
Replace internal analog circuit
board (TW-ADC-01).*
Alarm
No.
Item
Alarm
description
Cause
Corrective action
(*: Manufacturer service required)
Reference
Содержание TW-100
Страница 1: ...Water Distribution Monitor TW 100 Instruction Manual CODE GZ0000080187H ...
Страница 8: ......
Страница 142: ...7 MAINTENANCE 130 ADC Connectors on the printed board Residual chlorine sensor Conductivity sensor ...
Страница 174: ......