horiba LAQUA F-71G, Instruction Manual

Page: 68 / 102

Chapter 3 Basic Operation
3.4 Measurement
50
3.4
Measurement
3.4.1 Measurement value hold
The instrument can hold the measurement value
automatically when it judges that the value is stable.
Press the MEAS key when the instantaneous value is
displayed in the instantaneous measurement, and the
HOLD indicator blinks. Then, when the value is stable,
the HOLD indicator lights up and the value is held.
To cancel the HOLD state or to stop the stability
judgment (HOLD blinking), press the MEAS key again.
●
Stabilization criteria
pH measurement:
pH change in 10 seconds: within ±0.017 pH
(converted to 25
°
C)
ORP and ion measurements:
Potential change in 10 seconds: within ±1 mV
Temperature measurement:
Temperature change in 10 seconds: within ±2
°
C