Press scroll key until the display shows . Send a 100
ohms signal to the RTD input terminals according to the
connection shown below:
Step 4.
100 ohms
Press scroll key for at least 3 seconds . The display will
blink a moment, otherwise the calibration fail
ed
.
Figure 4.1 RTD Calibration
Press scroll key and the display will show . Change
the ohm's value to 300 ohms .Press scroll key for at least 3
seconds. The display will blink a moment and two values are
obtained for RTDH and RTDL ( step 4 ). Otherwise, if the
display didn't blink or if any value obtained for RTDH and
RTDL is equal to -199.9 or 199.9 , then the calibration
fail
ed
.
Step 5.
Perform step 6 to calibrate offset of cold junction
compensation, if required.
Setup the equipments according to the following diagram
for calibrating the cold junction compensation.
Note
that a “K” type thermocouple must be used.
Step 6.
*
4000 Series
8000 Series
6000 Series
100 ohms
50