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52
Relative mV MEASUREMENTS
To measure the Relative mV of a sample:
• Press
then (select channel first for
HI5222).
• Verify if a current calibration has been made.
• If required, conduct the single point Rel mV calibra-
tion. Verify the tip of the electrode is immersed into
the known solution or ORP standard.
• Press
. Use and keys
set the standard value. Press to store the
calibration.
• Press
then (select channel first for
HI5222).
• Place calibrated sensor tip into the sample to be
analyzed. The instrument will display the measured
Relative mV value on the LCD, together with a short
GLP information about the last calibration or Offset:
0.0 mV no Rel mV calibration was performed.
Notes: If the ORP sensor is not in solution or the
measured mV potential is out of range, “----” will be
displayed on the LCD.
mV & Relative mV MEASUREMENTS
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