Thermo Scientific Russell RL060P pH Meter User Guide
Chapter VI
Troubleshooting
Problem
Cause
Solution
No .display
Batteries .not .in .place
a . . .Insert .batteries
b . . . .Re-insert .batteries .in .
correct .polarity
“LO” .displays .in . .
the .LCD
Low .battery
Replace .batteries .with .
fresh .ones
Unstable .reading
a . . . .Electrode .not .deep .
enough .in .sample
b . . .Dirty .electrode .
c . . .Broken .electrode
a . . . .Place .electrode .deeper .
in .sample
b . . . . .Clean .electrode .and .
recalibrate .
c . . .Replace .electrode
“Er1” .display
Buffer .value .out .of .
tolerance
Use .new .pH .buffer .solution .
and .recalibrate
“Er2” .display
Single .point .calibration
Perform .at .least .2 .point .
calibration
Not .able .to .calibrate
a . . .Display .freezes .
b . . .Faulty .electrode
a . . . .Release .reading .by .
pressing .HOLD .key
b . . .Replace .electrode
Summary of Contents for Russell RL060P
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