8 TROUBLESHOOTING
145
21
Color
Concentration
lower limit
Sample water abnormality
Manually analyze sample water.
Degradation in zero water
filter
Replace filter cartridge.
Mismatched calibration
results
Perform calibration.
Clean turbidity/color cell.*
Dirt in turbidity/color cell
Clean turbidity/color cell.*
Detector failure
Replace detector.*
22
Concentration
device upper
limit
Sample water abnormality
Manually analyze sample water.
Mismatched calibration
results
Perform calibration.
Dirt in turbidity/color cell
Clean turbidity/color cell.*
Detector failure
Replace detector*
Internal analog circuit board
failure
Replace internal analog circuit
board (TW-ADC-01).*
23
Concentration
device lower
limit
Sample water abnormality
Manually analyze sample water.
Degradation in zero water
filter
Replace filter cartridge.
Mismatched calibration
results
Perform calibration.
Clean turbidity/color cell.*
Dirt in turbidity/color cell
Clean turbidity/color cell.*
Detector failure
Replace detector.*
Internal analog circuit board
failure
Replace internal analog circuit
board (TW-ADC-01).*
24
Light source
abnormality
Degradation or failure in
turbidity light source (LED)
Readjust or replace turbidity light
source.*
Detector failure
Replace detector.*
Internal analog circuit board
failure
Replace internal analog circuit
board (TW-ADC-01).*
Connection failure in light
source or detector
Inspect light source or detector
connection.*
Alarm
No.
Item
Alarm
description
Cause
Corrective action
(*: Manufacturer service required)
Reference
Summary of Contents for TW-100
Page 1: ...Water Distribution Monitor TW 100 Instruction Manual CODE GZ0000080187H ...
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