35
35
mV & TEMPERA
TURE CALIBRA
TION (for technical personnel only)
• Use the / keys to set the calibration point value measured by the reference thermometer.
• After the reading has stabilized and is within selected calibration range, press
CFM
to update the
calibration point.
• The instrument returns to measurement mode.
Note:
Use / keys to change calibration point if necessary (±10.0
˚
C). If the reading is
not within selected calibration range, “Wrong” message will blink. Change the pH probe, and
restart calibration.
14.2. mV CALIBRATION
A two-point calibration can be performed at 0 mV and 1800 mV.
1. Attach a mV simulator with ±0.1 mV to the pH connector.
2. Set the simulator to 0.0 mV.
3. Wait a few seconds for the probe to stabilize.
4. After the reading has stabilized and is within the range of the calibration point, press
CFM
to
update the calibration point.
5. Set the simulator to 1800.0 mV.
6. Wait a few seconds for the probe to stabilize.
7. After the reading has stabilized and is within the range of the calibration point, press
CFM
to
update the calibration point.
Notes:
The “WRONG” tag will blink if the reading is not within the range of the selected
calibration point. Verify calibration condition or contact your local Hanna Instruments Office if you
cannot calibrate. Press
CAL
(or
ESC
) key to return to measurement mode.