Panametrics DigitalFlow XMT868i, Руководство по обслуживанию

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DigitalFlow™ XMT868i Service Manual 25
Appendix B. Calibration and Testing with PanaView
B.4.3 RTD Inputs
RTD inputs may be added to the Model XMT868i by installing an appropriate option card in Slot 1. This option card
contains two or four RTD inputs, which are designated as A, B, C and D. Both the set and slope temperature values for
each input must be calibrated.
Calibration of the RTD inputs requires the use of a calibrated RTD source.
Prepare for the calibration procedure by connecting an independent calibrated RTD source to the desired input of
the option card. See Figure 4 on page 12 to identify the RTD (+) and COM(-) pins on terminal block J2.
1. In the center pane of the Calibration/Test window, double-click on Slot 1.
2. Double-click on the desired input to open the RTD Calibration menu.
IMPORTANT: The procedure for calibrating each input is identical. However, be sure to reconnect the temperature
reference on terminal block J2 . See Figure 4 on page 12 for the correct pin numbers.
Proceed to the corresponding sub-section for specific instructions on each of the options shown above.
B.4.3a Set Point Option
1. If you selected the Set Pt. option in the RTD Input menu, PanaView asks for the Low Reference Temp. Enter the low
reference value in the right pane, and click [Next Item].
2. Double-click on Store to accept the low reference value or on Abort to cancel the entry. In either case, the RTD
Input prompt reappears.
The XMT displays an
accepted
message if the value is good or an
out of limits, rejected
message if the value is bad. If
the value is rejected, try again.
B.4.3b Slope Point Option
1. If you selected the Slope Pt. option in the RTD Input menu, PanaView asks for the High Reference Temp. Enter the
high reference value in the right pane, and click [Next Item].
2. Double-click on Store to accept the low reference value or on Abort to cancel the entry. In either case, the RTD
Input prompt reappears.
The XMT displays an
accepted
message if the value is good or an
out of limits, rejected
message if the value is bad. If
the value is rejected, try again.
Click [Exit Page] to return to the Slot 1 window and calibrate additional inputs/outputs, or click [Exit Page] again to
close the Calibration/Test menu.