DeltaOHM HD31, Руководство по эксплуатации

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HD31
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V1.6
the instrument displays a countdown ( ACQUIRING ) of a few seconds, then moves to the
next calibration point.
3. The instrument suggests that the third calibration point is set to 200 °C ( SETPOINT line). If
you don’t want the point to be calibrated, press F1 ( SKIP command) to terminate the cali-
bration, otherwise place the probe in a bath ranging between 150 °C and 400 °C. The dis-
play shows the temperature value measured by the probe (
MEASURE line). The calibration
point can be adjusted using
S
and
T
. When the reading is stable, press F3 ( OK command)
to confirm: the instrument displays a countdown ( ACQUIRING ) of a few seconds and at the
end, a message reminding that the operation will change the probe calibration data, select
YES ( F3 key) to continue (or press F1 to select NO and exit).
Calibration can be exited at any moment by pressing ESC .
Note : the boxes near the SETPOINT number represent the three available calibration points; a
box becomes full when the corresponding point is calibrated.
13.1.2 PARAMETERS
OPTION FOR
PRT
SENSORS
The instrument displays the parameters (R
0
, α , δ and β ) used for calculating temperature de-
pending on the measured resistance of the PRT sensor (see appendix for details).
1.
Select the parameter you want to be changed using
S
and
T
, then press the F1 key (com-
mand EDIT ) to confirm.
Fig. 13.1.3: parameters for temperature calculation equation
2. Set the first digit using
S
and
T
, then select the "-->" command ( F2 key) to move to the
next digits (the currently selected digit flashes). To return to a previous digit, select the
"<--" command (
F1 key). After setting all the digits, press OK ( F3 key) to confirm the val-
ue.
Fig. 13.1.4: setting a parameter of the equation