10.12
Milliamp output problems
Milliamp output problems and recommended actions
Table 10-5:
Problem
Possible causes
Recommended actions
No mA output
•
Output not powered
•
Wiring problem
•
Circuit failure
•
Verify that the output loop is powered ex-
ternally.
•
Check the power supply and power supply
wiring. See
.
•
Verify the output wiring.
•
Check the
Fault Action
settings. See
.
•
Contact Micro Motion.
Loop test failed
•
Output not powered
•
Power supply problem
•
Wiring problem
•
Circuit failure
•
Verify that the output loop is powered ex-
ternally.
•
Check the power supply and power supply
wiring. See
.
•
Verify the output wiring.
•
Check the
Fault Action
settings. See
.
•
Contact Micro Motion.
mA output below
4 mA
•
Open in wiring
•
Bad output circuit
•
Process condition below LRV
•
LRV and URV are not set correctly
•
Fault condition if
Fault Action
is set to
Internal
Zero
or
Downscale
•
Bad mA receiving device
•
Check your process conditions against the
values reported by the device.
•
Verify the receiving device, and the wiring
between the transmitter and the receiving
device.
•
Check the settings of
Upper Range Value
and
Lower Range Value
•
Check the
Fault Action
settings. See
.
Constant mA output
•
Incorrect process variable assigned to the
output
•
Fault condition exists
•
Non-zero HART address (mA Output 1)
•
Output is configured for loop test mode
•
Zero calibration failure
•
Verify the output variable assignments.
•
View and resolve any existing alert condi-
tions.
•
Check the HART address. If the HART ad-
dress is non-zero, you may need to change
the setting of
mA Output Action
(
Loop Current
Mode
).
•
Check to see if a loop test is in process (the
output is fixed).
•
Check HART burst mode configuration.
See
.
•
If related to a zero calibration failure, cycle
power to the meter and retry the zeroing
procedure.
Troubleshooting
Configuration and Use Manual
155
Summary of Contents for CDM100M
Page 8: ...Getting Started 2 Micro Motion Compact Density Meters CDM ...
Page 12: ...Before you begin 6 Micro Motion Compact Density Meters CDM ...
Page 20: ...Configuration and commissioning 14 Micro Motion Compact Density Meters CDM ...
Page 26: ...Introduction to configuration and commissioning 20 Micro Motion Compact Density Meters CDM ...
Page 110: ...Integrate the meter with the control system 104 Micro Motion Compact Density Meters CDM ...
Page 116: ...Operations maintenance and troubleshooting 110 Micro Motion Compact Density Meters CDM ...
Page 124: ...Transmitter operation 118 Micro Motion Compact Density Meters CDM ...
Page 194: ...Using the transmitter display 188 Micro Motion Compact Density Meters CDM ...
Page 208: ...Using ProLink III with the transmitter 202 Micro Motion Compact Density Meters CDM ...