Common Magmeter Issue
(continued)
Table 12-7:
Symptom
Potential cause
Corrective action
No power to transmitter
Check pulse output wiring at terminals 3 and 4. Re-
fer to wiring diagram for pulse counter and pulse
output.
Power the transmitter
Reverse flow
Enable Reverse Flow function
Electronics failure
Verify transmitter operation with an 8714D Calibra-
tion Standard or replace the electronics stack
Pulse output incorrectly configured
Review configuration and correct as necessary
Communication prob-
lems with the Handheld
Communicator
4–20 mA output configuration
Check analog power switch (internal/external). The
Handheld Communicator requires a 4–20 mA out-
put to function.
Communication interface wiring prob-
lems
Incorrect load resistance (250 Ohm minimum, 600
Ohm maximum)Check appropriate wiring diagram
Low batteries in the Handheld Com-
municator
Replace the batteries in the Handheld Communica-
tor – see the communicator manual for instructions
Old revision of software in the Hand-
held Communicator
Consult your local sales office about updating to the
latest revision of software
Error Messages on LOI or
Handheld Communica-
tor
Many possible causes depending upon
the message
See
,
for the LOI
or Handheld Communicator messages
Discrete input does not
register
Input signal does not provide enough
counts
Verify that the discrete input provided meets the re-
quirements in
Perform a loop test to validate the analog control
loop
Perform a D/A trim. This allows the calibration of
the analog output with an external reference at op-
erating endpoints of the analog output.
Reading does not appear
to be within rated accu-
racy
Transmitter, control system, or other
receiving device not configured prop-
erly
Check all configuration variables for the transmitter,
sensor, communicator, and/or control system
Check these other transmitter settings:
Sensor calibration number
Units
Line size
Perform a loop test to check the integrity of the cir-
cuit
Electrode Coating
Enable Coated Electrode Detection diagnostic
Use bullet-nose electrodes
Downsize sensor to increase flow rate above 3 ft/s
Periodically clean sensor
Troubleshooting
168
Rosemount
®
8732EM Transmitter with HART Protocol Reference Manual
Содержание Rosemount 8732EM
Страница 2: ......
Страница 6: ...Contents iv Rosemount 8732EM Transmitter with HART Protocol Reference Manual ...
Страница 10: ...Safety messages 4 Rosemount 8732EM Transmitter with HART Protocol Reference Manual ...
Страница 14: ...Introduction 8 Rosemount 8732EM Transmitter with HART Protocol Reference Manual ...
Страница 30: ...Sensor Installation 24 Rosemount 8732EM Transmitter with HART Protocol Reference Manual ...
Страница 87: ...Field Communicator Dashboard Menu Tree HART v5 4 part 2 Figure 7 8 Operation Reference manual 81 ...
Страница 92: ...Operation 86 Rosemount 8732EM Transmitter with HART Protocol Reference Manual ...
Страница 138: ...Advanced Diagnostics Configuration 132 Rosemount 8732EM Transmitter with HART Protocol Reference Manual ...
Страница 158: ...Maintenance 152 Rosemount 8732EM Transmitter with HART Protocol Reference Manual ...
Страница 214: ...Product Certifications 208 Rosemount 8732EM Transmitter with HART Protocol Reference Manual ...
Страница 217: ...Wiring 8732EM using combination cable Figure C 2 Wiring Diagrams Reference manual 211 ...
Страница 221: ...Wiring Diagram 475 Field Communicator with 8732EM External Analog Power Figure C 6 Wiring Diagrams Reference manual 215 ...
Страница 222: ...Wiring Diagrams 216 Rosemount 8732EM Transmitter with HART Protocol Reference Manual ...
Страница 253: ...Implementing a Universal Transmitter Reference manual 247 ...