Advertisement
Quick Start Guide
Note
Some detected faults are indicated on the analog output at a level above high alarm regardless of
the alarm selection.
6.0 Operation and maintenance
Proof test and inspection
The following proof tests are recommended. Proof test results and corrective
actions taken must be documented at
EmersonProcess.com/Rosemount/Safety-Products/Equipment-List. in the event
that an error is found in the safety functionality.
Reference
Table 1
or Sensor Trim. See the Rosemount 4600
information.
Proof test
This proof test will detect 90 percent of DU failures not detected by the
Rosemount 4600 automatic diagnostics.
1. Conduct a loop test. On Field Communicator enter the Fast Key sequence
1,2,2.
a. Enter the milliampere value representing a high alarm state and verify that
the analog current reaches that value
b. Enter the milliampere value representing a low alarm state and verify that
the analog current reaches that value
2. Perform a two-point sensor calibration check
points as the calibration points.
a. If necessary, use one of the trim procedures available in the Rosemount
4600
Reference Manual
Note
The user determines the proof-test requirements for impulse piping.
Product repair
All failures detected by the transmitter diagnostics or by the proof-test must be
reported. Feedback can be submitted electronically at
EmersonProcess.com/Rosemount/Safety-Products/Equipment-List
1. This tests for compliance voltage problems such as a low loop power supply voltage or increased wiring resistance.
This also tests for other possible failures.
2. This tests for possible quiescent current related failures.
3. If the two-point calibration is performed with electrical instrumentation, this proof tests will not detect any failures
of the sensor.
8
for the Fast Keys to perform a Loop Test, Analog Output Trim,
to calibrate.
Reference Manual
(1)
.
(2)
.
(3)
using the 4–20 mA range
September 2016
for additional
Advertisement
