Lotus Clean digital pH tester for precise measurement of the pH value for your whirlpool.

The measuring instrument has a probe that can be calibrated exactly. For this purpose we supply you with 2x ready-to-use calibration liquid and a handy screwdriver.

Operating Instructions pH tester

  1. Remove the cover cap.
  2. Switch on the device at the upper switch.
  3. Calibrate the device. (absolutely during commissioning. Then every 4 weeks)
  4. To measure, immerse the measuring diode of the pH tester in the water and stir it slightly. Leave it submerged until the values in the display do not change any more.
  5. After measuring, clean the measuring diode in distilled water and close the lid over the wet measuring diode. The measuring diode should not dry out.
  6. Switch off the device.

How to calibrate your device correctly is shown below.

Specifications:

Measuring range: 0,00- 14,00 pH

Accuracy: +/- 0,1 pH

Temperature range: 0°- 60°Celsius

Calibration: Manual one-point calibration with screwdriver

Dimensions: 155mm x 29 mm x 13 mm

Weight: 65g

 

pH tester calibration

Required materials:

  1. electronic pH tester
  2. glass
  3. scissors
  4. calibration liquid

Cut open the bag of calibration liquid.

 

Pour the contents into the glass.

 

Loosen the lid at the bottom of the tester.

 

Switch the tester on at the top.

 

Hold the tester in the glass with liquid.

 

Take the screwdriver, you will find a suitable slot on the back. Calibrate the tester by turning the screwdriver.

 

If the tester shows 7.0, it is correctly calibrated.

 

Maintenance and storage

If you have not used the pH tester for a long time and the measuring diode has been exposed to air, the display may show the values slowly and not regularly. You should then leave the pH tester with the measuring diode in the water for a few hours.

Please note: The measuring diode is fragile. Please handle with care.

Low battery charge

If the display is no longer sharp or does not show at all, the battery should be replaced. Pay attention to the polarity of the battery.

Battery type: 3x1,5V(LR44 button cell)