Wiring and power to test terminals
Figure 10-1:
A
B
C
D
A. Voltmeter
B.
250–600 Ω
resistance
C. External power supply
D. Transmitter with end‐cap removed
c. Using a voltmeter, check the voltage drop across the resistor.
For a
250 Ω
resistor, 4–20 mA = 1–5 VDC. If the voltage drop is less than 1 VDC,
add resistance to achieve a voltage drop within the required range.
d. Connect a Field Communicator directly across the resistor and attempt to
communicate (poll).
If this test fails, the transmitter may need service. Contact Micro Motion.
Related information
Configure basic HART parameters
Using the Field Communicator with the transmitter
10.18
Check
Lower Range Value
and
Upper Range Value
If the process variable assigned to the mA output falls below the configured
Lower Range
Value
(LRV) or rises above the configured
Upper Range Value
(URV), the meter will post a
saturation alert (A100 or A113), then perform the configured fault action.
1.
Record your current process conditions.
2.
Check the configuration of the LRV and URV.
Related information
Troubleshooting
160
Micro Motion
®
Compact Density Meters (CDM)
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 ...