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4 CALIBRATION
Span calibration <residual chlorine>
1. Place the calibration solution tank with span calibration solution more than 170 cm
above from the drain pipe outlet; instead of placing it on the calibration tank tray
beside the device.
2. Connect the tank to the calibration inlet of the device.
More than 170 cm
3. Press the SPAN VALUE button ([x.xx]) on the FRC. CAL. screen.
The span calibration value input screen is displayed.
4. Enter the span calibration value using the numerical key pad, and press [SET].
Input range: 0.00 mg/L to 5.00 mg/L
Tip
[CLEAR]: Clears the whole value.
[BACK]: Deletes the rightmost number of the value.
The screen returns to the FRC. CAL. screen.
5. Open the valve of the calibration tank.
66
Calibration tank
Lift the calibration tank
Calibration pipe
Drain
pipe
[x.xx]
TW-150
Mount
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