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HOW TO REUSE THE FLUSHED
WATER
Although the flushed water from the purifier has slightly higher concentration of
TDS and hardness but it is filtered and activated carbon treated tap water. It can
still be used for following activities:
• for watering the plants
• for mopping and cleaning the floor
• to clean bathroom
CALIBRATION & GENERAL MAINTENANCE
INSTRUCTION FOR HAND HELD TDS METER
The functioning of the TDS Meter will be ascertained by our authorized service
representative periodically (at least once in 6 months, during Preventive service) or as per
the customer request.
For Calibration
1. Take the 100 ml water of standard solution in a beaker.
2. Carefully immerse the probes of the TDS Meter in the standard calibration solution and
turn ON the TDS meter.
3. The TDS of water will display, wait for 10 seconds - 20 seconds to stable the reading.
i. If value matches with the standard calibration solution (±10%) then calibration is
considered as completed.
ii. If the value does not match with the standard calibration solution then follow below
instructions
a. To adjust the readings, long press the HOLD icon for 3 seconds. Hold will starts blinking
on display.
b. Then press the Temp. icon. TDS of the standard calibration solution will display and
blinks on the display to indicate that calibration is completed.
4. Remove the TDS meter from the solution. Clean the probe by purified water and dry it
with the help of cloth/cotton.
5. Turn the meter off, wait for a moment & turn ON the meter again to start using.
For General Usage & Maintenance
1. Immerse the meter in the water/solution such that the probes are completely dipped in
it.
2. Shake & clean with purified water after each use.
3. The meter is not water proof. DO NOT drop or submerge the meter in water.
4. Do not store the meter in high temperature or direct sunlight.
5. Replace the battery if the display is dim or readings are consistently not accurate.
Important Notes.
1. TDS Meter Range: From 0 mg/L to 2000 mg/L.
2. Tolerance: ±10% of water TDS.
3. Depending on the make of the meters, the calibration buttons may be “on/off” or “hold”
or a combination of both. Contact authorized Havells service technician for support.
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