8
Recalling Stored Readings
NOTE: The HOLD symbol should not be displayed. If it is, exit the HOLD
function by pressing the MODE button.
1. Press the CAL/RECALL button and then press the MODE/HOLD button
immediately after
CAL
is displayed; the location number (1 through 15)
will f ash.
2. The last stored reading taken will be displayed f rst. To advance through
the stored readings, press the MODE/HOLD button. The location number
is displayed f rst, followed by the reading stored in that location.
3. To exit the storage mode, press the CAL/RECALL button and the meter
will return to normal operation.
4. If the batteries are removed, all stored readings will be lost.
For Best Accuracy
1. Remove TRACER from sample when power is off. Even though power
is off, leaving TRACER in solution can shorten unit life.
2. Wash sample cups and caps and rinse completely before use.
3. If measuring solutions with large differences in chlorine concentration,
for example, 0.1 ppm and 5.0 ppm, use a separate sample cup for each
concentration.
4. Discard the sample cup when it becomes stained.
5. The process requires an acidic solution. The reagent tablet provides
suff cient buffering capacity to deal with alkalinity, calculated as calcium
carbonate, up to and in excess of 500 ppm. This will cover all common
water samples.
6. When the electrode is new or after dry storage, chlorine measurements
should be repeated at least twice until a repeatable reading is obtained.
7. Gently wipe the electrode surface with a paper towel between uses.
8. When measuring a lower chlorine concentration after a higher
concentration, the meter will temporarily give slightly elevated readings.
9. All oxidizing species that interfere with other chlorine methods, such as
manganese, iodine and bromine will interfere. Silver and mercuric ions
over 20 ppm will also interfere.
10. Do not touch the tablets. It can contaminate them.
11. Do not touch the sensor surface.
