Error Messages; Technical Specifications - bluelab Multimedia pHMeter Care And Use Manual

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
Multimedia 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 specifications

Measurement range
Resolution
Accuracy at 25 °C/77 °F
Calibration
Operating environment
Power source
11
pH
0.0 - 14.0 pH
0.1 pH
±0.1 pH
Two point pH 7.0 and pH 4.0 or pH 10.0
0 - 50 °C
32 - 122 °F
2 x AAA alkaline batteries