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8 TROUBLESHOOTING
143
10
Turbidity
Concentration
upper limit
Air bubbles in turbidity/color
cell
Perform auto cleaning.
Sample water abnormality
Manually analyze sample water.
Mismatched calibration
results
Perform calibration.
Dirt in turbidity/color cell
Clean turbidity/color cel.l*
Detector failure
Replace detector.*
11
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.*
12
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).*
13
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).*
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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