5-11
RTD Current Source (Resistive) Test, Cont.
Step
Procedure,
Cont.
10.
If either of the measured values are outside of range, remove
power and replace Termination Board Connector Cable
(1801415-xxx).
11.
Return power and perform steps 9 and 10. If either of the
measured values are outside of range, remove power and
replace Termination Board (2101873-xxx).
12.
Return power and perform steps 9 and 10. If either of the
measured values are outside of the range, remove power and
replace Main Processor Board (2101471-xxx) and EXIMV
(2101465-xxx).
RTD Impedance Test
If readings from the RTD are still suspect following the RTD Probe test, follow the
Instructions below to test the current source on the Termination Board to verify it is
receiving power.
Required
Equipment
•
Ice
Bath
•
Digital
MultiMeter
Instructions
Step Procedure
1.
Immerse RTD Probe in ice bath.
2.
Perform a Continuity check between any two similar color wires.
Measured resistance should be 1 OHM or less.
3.
Perform a Continuity check between any two dissimilar color
wires. Measured resistance should be approximately 100 Ohms.
4.
Perform a Continuity check between shield wire and any other
wires. Measured resistance should be in the Megohm range.
5.
If any values are returned out of range, RTD Probe is defective.
Replace RTD.
Summary of Contents for XRC6490
Page 1: ...2100802 001 AB TOTALFLOW XSeries Remote Controller User s Manual ...
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Page 19: ...1 5 Standard Enclosure Cont RC 6790 X Figure 1 2 Model XRC6790 Continued on Next Page ...
Page 41: ...1 27 Totalflow Input Output Modules Cont Figure 1 16 XRC6990 Inside View ...
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Page 64: ...2 22 B B Bl lla a an n nk k k P P Pa a ag g ge e e ...
Page 86: ...4 12 Replacing XRC 195 Board Cont Figure 4 5 XRC Board Connections ...
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Page 112: ...5 24 12V Communication Supply Voltage Test Cont Figure 5 9 XRC 195 Communication Wiring ...
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Page 340: ...B 48 B B Bl lla a an n nk k k P P Pa a ag g ge e e ...
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