Thermo Fisher Scientific Alpha pH 800 - Manual (Page 22)

15
6.2 ORP – mV Calibration
This mode allows one-point calibration.
1) Enter Calibration mode. While in Measurement
mode, push CAL key. Press ENTER key. The upper
and lower display reads “CAL OrP”.
Note: If upper and lower display read “CAL PH”, see
section 7.4 for procedures on how to switch from pH
to ORP mV readings.
2) Place sensor in ORP solution.
3) Press ENTER key to begin calibration. “CAL”
indicator appears on display. Upper display shows
current mV output of electrode without any offset
adjustment.
4) Press
Δ or ∇ keys to adjust mV value to that of standard solution.
5) To confirm, press ENTER key. The controller calculates the correction factor
and returns to Measurement mode.
CAL
OrP
SETUP
HOLD
226
mV
C
HOLD
CAL