Menu cl1 dpd-4 total chlorine test procedure, Menu o3 ozone test procedure – Electro-Chemical Devices (ECD) HCA1 User Manual

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MENU CL1 DPD-4 Total Chlorine Test Procedure

1. Remove (1) Micro CL (DPD-4) Strip from the bottle before beginning the test.

Place it in a dry convenient place and recap the test strip bottle.

2. Press the ZERO/ON button to power the meter on; the display will show all

annunciators, then the current MENU selection, followed by the last reading.

3. Press and re-press the MENU button until the display shows the parameter

CL1.

4. Rinse the CELL at least 3 times with the water sample you will be testing -

rinsing minimizes the potential for cross contamination from a previous test.

Finally, fill cell to capacity (4mL) with the water sample.

5. Press the ZERO/ON button. The cursor will move across the display followed

by 0.00 PPM. Sample is ready for testing.

6. Dip the HCA1 Strip Micro CL (DPD-4) into the CELL and immediately press

READ. This starts the 20 SECOND countdown timer. During this time move the

strip in a gentle back and forth motion (approx. 2 strokes/Sec). Remove and

discard the strip after “1” on the display disappears. When testing outdoors

(in sunlight), for best accuracy, use the Mixing Cap/Cell Cover when Zeroing

and Reading the sample.

7. The cursor will move across the display while the meter prepares to measure

the sample. Record result displayed (this result is automatically stored in CL1

Menu).

8. Press READ again and the meter will count down and display the next Total

Chlorine result. If this reading matches the previous result, then record this as

Total Chlorine value (this result is stored in CL1). After testing is completed,

rinse cell immediately. Record the Total Chlorine as the highest value the

meter displayed.

MENU O3 Ozone Test Procedure

1. Remove (1) Micro O3 (DPD-4) Strip from the bottle before beginning the test.