Filter
Top Products
47
MODEL TCL SECTION 9
CALIBRATION
7. Follow the screen prompts: Once the reading is stable, press ENTER.
Take the sample and press ENTER. At this point, the analyzer will store
the present sensor current and temperature and use those values in the
calibration.
Determine the total chlorine concentration in the sample and enter
the value in the screen shown at left. See Section 9.3.1 for sampling and
testing precautions.
8. If the calibration is successful, the live reading will change to the value
entered in step 7 and the display will return to the screen in step 6.
If the sensitivity is too far outside the range of expected values, the
calibration error screen shown at left will appear. The analyzer will not
update the calibration. For troubleshooting assistance, see Section 11.5.
9. To return to the main display, press MENU then EXIT.
S1 InProcess Cal
Calibration Error
Press Exit
S1 Enter Value
1 0.00 ppm
1
9.4 CALIBRATING ANALOG OUTPUTS
9.4.1 Purpose
Although the analyzer analog outputs are calibrated at the factory, they can be trimmed in the field to match the
reading from a standard milliammeter. Both the low (0 or 4 mA) and high (20 mA) outputs can be trimmed.
9.4.2 Procedure
1. Connect a calibrated milliammeter across the output you wish to calibrate. If a load is already connected to the
output, disconnect the load. Do not put the milliameter in parallel with the load.
20 mA Output 1
Cal Meter:
2 0.000 mA
2
2. Press MENU. The main menu screen appears. The cursor will be on
Calibrate. Press ENTER.
3. Choose the output you wish to calibrate.
4. The analyzer will simulate the low output current. Change the value in the
display to match the reading from the milliammeter.
5. The analyzer will simulate the 20 mA output current. Change the value in
the display to match the reading from the milliammeter.
Calibrate?
Sensor 1
Sensor 2
Output 1
Output 2
Output 1
4 mA Output 1
Cal Meter:
0 4.000 mA
0