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55 4.07 6.83 8.99 4.08 6.97 9.80
60 4.09 6.84 8.97 4.10 6.98 9.78
Note : The actual reading of the instrument can differ from the
values shown by ±0.01 pH.
ERROR DISPLAYS
MAIN DISPLAY POSSIBLE CAUSE(S)
"Er 1"
pH electrode offset is
greater/less than +/-1.5
pH.
pH electrode is faulty.
"Er 2"
pH electrode slope is off
by more than 30% of the
ideal slope.
Buffer 4.01, 9.18 or 10.01
is not correct.
"Er 3"
Temperature is out of the
0.0 to 60.0
℃
range
SPECIFICATIONS
Display Range Accuracy
Resolution
pH
-2.00 to 16.00 pH ±0.1 %, ±1 digit
0.01 pH