Hanna Instruments HI 98180 - Manual (Page 50)

50
• Press CFM to confirm.
• The second expected calibrated point is displayed.
• Immerse the temperature probe into the second vessel as close as possible to
the reference thermometer. Allow a few seconds for the probe to stabilize.
• Use the ARROW keys to set the calibration point value to that of the hot
water.
• When the reading is stable and close to the selected calibration point,
CFM functional key is displayed.
• Press CFM to confirm. The instrument returns to measurement mode.
Note: Use ARROW keys to change calibration point if necessary (±10.0 ºC)
around the point.
If the reading is not close to the selected calibration point, “Wrong”
message will blink. Change the temperature probe and restart calibra-
tion.
mV CALIBRATION
A two point calibration can be performed at 0 mV and 1800 mV.
• Attach to the BNC connector a mV simulator with an accuracy of ±0.1 mV.
• Enter the calibration screen. Press
mV functional key.
• Set 0.0 mV on the simulator.
• When the reading is stable and close to the selected calibration point, the
CFM functional key is displayed.
• Press CFM to confirm. The second calibration point of 1800 mV will be