pH + Temperature Meter – PH55

The PH55 pH and temperature meter is a waterproof IP67 digital pocket meter with a large two-line LCD display showing pH and temperature (°C or °F).

The PH55 pH and temperature meter measures with automatic temperature compensation over an extended pH range of -2.0 to 16.0 and simultaneously displays temperature from -5.0 °C to 105.0 °C or from 23.0 °F to 221 °F.

Functionality

The PH55 pH and temperature meter has:

• Automatic two-point calibration (pH 7.01 - pH 4.01 / 10.01)
• 1 replaceable pH probe and auto shut-off that saves the batteries when the instrument is not in use
• The double-junction electrode is replaced simply and quickly
• The modular design allows easy replacement of batteries and electrodes.

The PH55 pH and temperature meter is ideal for field measurements in sectors such as hydroponics, aquariums, fish farming, swimming pools, water treatment, laboratories and education.

Operation

• Remove the protective cap
• Switch on the PH55 by pressing the ON / OFF button
• Immerse the electrode in the liquid to be measured
• The PH55 automatically compensates for temperature
• To switch off the meter, press the ON / OFF / CAL button.

Calibration

• Press the ON / OFF / CAL button until the OFF message is replaced by the CAL message. The meter is in calibration mode and, with the message “pH7.01 use”, asks to be immersed in the pH 7.01 calibration liquid. The meter will show "OK" and ask you to immerse it in pH 4.01 solution. Once immersed in pH 4.01 solution, after a few seconds it will show "OK2", meaning it is calibrated at 2 points.

Operation

• Remove the protective cap
• Switch on the PH55 by pressing the ON / OFF button
• Immerse the electrode in the liquid to be measured
• The PH55 automatically compensates for temperature
• To switch off the meter, press the ON / OFF / CAL button.

Calibration

• Press the ON / OFF / CAL button until the OFF message is replaced by the CAL message
• The meter is in calibration mode and, with the message “pH7.01 use”, asks to be immersed in the pH 7.01 calibration liquid
• The meter will show "OK" and ask you to immerse it in pH 4.01 solution
• Once immersed in the pH 4.01 solution, after a few seconds it will show "OK2", meaning it is calibrated at 2 points
• For a single-point calibration, immerse the tip of the meter in a calibration liquid (PH4, PH7 or PH10)
• Press the ON / OFF / CAL button until you enter calibration mode
• The meter will recognise the liquid and will be calibrated when it shows OK
• To exit calibration mode, press the Set / Hold button.

Replacing electrodes

• Unscrew the white ring, remove the electrode and replace it with a new one, taking care not to damage the connections.

IMPORTANT: Never use distilled or deionised water as a storage liquid

For any questions, do not hesitate to contact us.

We recommend purchasing pH sensor storage solution.

Happy measuring!