Martin Lishman
Tel: 01778 426600
Maintenance
Rinse the sensor in tap water after use.
Useful Notes
To maintain sensor accuracy, use tester regularly or
calibrate at regular intervals. For long
-
term storage, fill the
cap with 20mm of storage solution and replace cap. This will
keep the sensor conditioned and ready for its next use.
Changing Batteries
To remove batteries, lift up front battery cover and hold in
position before lifting the two sides of the pocket clip.
Remove old batteries and replace with new ones.
Error Messages
bAt
-
batteries are weak and need replacing
Err
-
wrong buffer value (out of range) and/or sensor is
failing, use fresh buffer
Or/Ur
-
over or under range signal. Sensor may be
contaminated/damaged/not fully immersed
Warranty
The pH151 tester is supplied with a warranty against
manufacturing defects for a period of one year from date of
purchase.
A Soil pH Meter Calibration Kit is available upon request.
This kit includes:
100ml 4.01 Calibration Buffer Solution
100ml 7.01 Calibration Buffer Solution
100ml 10.01 Calibration Buffer Solution
100ml Storage Solution
100ml Deionised Water
Contact Martin Lishman Ltd for details.
