10 | Measuring |
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Figure 4. Measure Temperature Near Terminals
b)Wait a few minutes to allow temperature stabilization of the entire system (compensation cable, sensor, calibrator and instrument).
c)The displays show “rJ” and “OFF”. Using theor 
button, make the readout value equal to the temperature measured by the measuring device in tenths of °C.
d)After a few seconds, start calibration by pushing the FUNC button. When this calibration is complete, the instrument will go to the next parameter.
b)Set 0.00 Ω on the resistor box.
c)Push the 
button; the displays show “ON” and “PL”.
d)After a few seconds, start calibration by pushing the FUNC button. When this calibration is complete, the instrument will go to the next parameter.
PH RTD Input Final Scale Value
a)Set resistor box to 375.00 Ω .
b)Push the 
button; the displays will show “ON” and “PH”.
c)After a few seconds, start calibration by pressing the FUNC button. When this calibration is complete, the instrument will go to the next parameter.
P.RTD Check
The display (Figure 6) shows “P.” followed by a number showing the measured value in counts:
rJ. Cold Junction Compensation Check
The displays show “rJ.” and the cold junction temperature in tenths of °C. Make sure the display readout is equal to the value read on the measuring device. Then, push the FUNC button to go to the next parameter.
PL RTD Input Initial Scale Value
a)Connect a resistor box and the instrument as shown in Figure 5.
8
9
10
Figure 5. Resistor Box Connection
3 2
P.300
00
Figure 6. RTD Calibration Check Display
a)Check the calibration (linear) by setting:
0.00Ω – the readout must be equal to
“P.000 00” ± 10 counts;
125.000 Ω – the readout must be equal to “P.101 90” ± 10 counts;
375.00Ω – the readout must be equal to “P.300 00” ± 10 counts.
b)Push the FUNC button to go to the next parameter.
32 | 9/17/02, 2:44 PM |