Temperature Calibration; With Temperature Probe For Preselected Curve - palintest MICRO 500 Operating Instructions Manual

For 2 or 3-point calibration, repeat with pH buffers 4.01
and /or 10.01 for best accuracy.
Important: This meter has automatic buffer recognition
which identifies the correct pH buffer values during
calibration. If buffers other than pH 4.01, 7.00 or 10.01 are
used, or the electrode has worn out, the LCD will flash
'Er1'. For pH 7, the tolerance is ± 1.50 pH, while for both
pH 4 and pH 10 is ± 1.00 pH :

3.2 Temperature Calibration

3.2.1 With Temperature Probe For Preselected Curve

The temperature sensor included with your meter is
factory-calibrated. Over time, the temperature calibration
may drift and require recalibration. If you replace the probe
you should calibrate temperature probe prior to pH or mV
calibration.
1 Connect your temperature probe to the meter. Press MODE
key to enter Temperature mode until '° C' annunciator appears
in the LCD.
2 Compare the displayed value to a NIST certified
thermometer or other thermometer known to be accurate.
For best accuracy, place probe and thermometer in a
constant temperature bath.
3 Press CAL key to enter temperature calibration mode. The
LCD shows 'CA' momentarily and the displayed reading
flashes :
9 of 21
Er1
ca 26.5
o
C
INST.21