Hanna-instruments HI 98180 Manual do Utilizador descarregar pdf (Página 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

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Hanna-instruments HI 98180 Manual do Utilizador Página 50