TPS WP Series Calibration User Guide

TPS WP Series Calibration

Quick Start

1. Unbox the meter and sensors
2. Connect the sensors to the meter
3. Remove any wetting caps from the sensors (pH and ORP)
4. Turn on the meter, calibrate and start testing.

An asterisk (*) on the display indicates that parameter is not calibrated. When calibration is successfully completed, it will change to a decimal point (.)

Temperature Calibration

1. Place the Electrical Conductivity (EC), Dissolved Oxygen (DO) or Temperature sensor into a beaker of room temperature water, alongside an accurate thermometer. Stir the sensor and the thermometer gently to ensure an even temperature throughout the beaker.

2. Select Temp Calibration.
   Menu: → Cal: → Temp:

3. When the reading has stabilized, press the Up / Down keys to adjust the temperature.

4. F1: to calibrate.

pH Calibration

1. Remove the wetting cap from the pH sensor. Rinse the pH and EC/DO/Temp sensor in distilled water and blot dry. Ensure temperature has been calibrated.

2. Place pH and EC/DO/Temp sensors into a small sample of fresh pH7 buffer, so that the bulb and reference junction are both covered.

3. Select pH Calibration.
   Menu: → Cal: → pH:

4. When the reading has stabilized,
   F1: to calibrate.

5. Rinse the pH and EC/DO/Temp sensors in distilled water and blot dry.

6. Place both sensors into a small sample of fresh pH4 buffer, so that the bulb and reference junction are both covered.

7. Select pH Calibration.
   Menu: → Cal: → pH:

8. When the reading has stabilised,
   F1: to calibrate.

Conductivity Calibration

1. Rinse the Conductivity sensor in distilled water. Shake off as much water as possible. Blot the outside of the sensor dry. Do not blot the sensor plates. Ensure temperature has been calibrated.

2. Zero Calibration
   Leave the sensor dry and in the air. Select Conductivity Calibration. Menu: → Cal: → Cond:

3. When the reading has stabilized, F1: to calibrate.

4. Standard Calibration
   Place the sensor into a sample of fresh Conductivity standard so that it is immersed at least above the vent hole.
   Select Conductivity Calibration. Menu: → Cal: → Cond:

5. When the reading has stabilized, F1: to calibrate.

Dissolved Oxygen Calibration

1. Select the Oxygen mode of your choice Menu: → F3:

2. Ensure that temperature has already been calibrated.

3. Rinse the Dissolved Oxygen sensor in distilled water and blot dry.

4. Zero Calibration
   Place the sensor into an oxygen-free solution. This solution may be prepared by dissolving 2g of Sodium Sulphite in 100mL of distilled water. Select Oxygen Calibration.
   Menu: → Cal: → Oxy:
   Allow the reading to stabilise at or near zero. This may take 2-3 minutes.

5. F1: to calibrate.

6. Rinse the dissolved Oxygen sensor in distilled water and blot dry.

7. Air Calibration
   Hang the Dissolved Oxygen sensor dry and in the air. The tip of the sensor should be pointing downwards.
   Select Oxygen Calibration
   Menu: → Cal: → Oxy:
   Allow the reading to stabilise. This may take up to 5 minutes.

8. F1: to calibrate.

For the full handbook, further calibration notes & troubleshooting go to tps.com.au

sales@tps.com.au | 07 3205 8027 | tps.com.au

References

• pH meters, ORP meters and high quality sensors with TPS – TPS Pty Ltd Online Store

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