Bluelab Soil pH Meter User Manual download pdf (Page 11)

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11.0 Error messages

An error message will only appear following pH calibration failure.

‘Err’ will be displayed for a few seconds then the display will show the previous

reading. Successful pH calibration indicators will disappear. The Bluelab Soil pH

Meter is in an uncalibrated state, therefore recalibration is required. See causes

of Error messages below.

Possible causes for an ‘Err’ message:

• Calibration solutions contaminated

• Wrong solutions used

• pH probe contaminated

• pH probe not properly attached

• pH probe worn out or damaged

• Calibrate to pH 7.0 FIRST then to pH 4.0/10.0

12.0 Technical speci cations

Measurement range 0.0 - 14.0 pH

Resolution 0.1 pH

Accuracy at 25 °C/77 °F ±0.1 pH

Calibration Two point pH 7.0 and pH 4.0 or pH 10.0

Temperature compensation Not applicable

Operating environment

0 - 50 °C

32 - 122 °F

Power source 2 x AAA alkaline batteries

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Bluelab Soil pH Meter User Manual Page 11