MODEL 5081-A
SECTION 11.0
CALIBRATION - TOTAL CHLORINE
11.5 PROCEDURE — FULL SCALE CALIBRATION USING Deltav
1. If the sensor was just zeroed, place the reagent uptake tube back in the bottle. once the flow of reagent starts,
it takes about one minute for the sensor current to begin to increase. It may take an hour or longer for the read-
ing to stabilize. Be sure the sample flow stays between 80 and 100 mL/min and the pressure is between 3 and
5 psig.
2. Adjust the chlorine concentration until it is near the upper end of the control range. Wait until the controller
reading is stable before starting the calibration.
3. Access: deltaV Explorer/Context Menu
Calibrate Amperometric Sensor (method_pv_cal)
Method Steps:
a. displayed: Current PV Measurement
Prompt: Is value stable?: Yes; No; Abort
If “No” is chosen, the PV measurement is re-read.
b. If “Yes” is chosen, the PV measurement and the new sensitivity value are shown.
the method concludes.
