Emerson Rosemount 3051S Series, Reference Manual

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Reference Manual
00809-0100-4801, Rev FA
October 2010
Rosemount 3051S Series
7-38
Configuring Alarm and Saturation Level
s
1. If using a Field Communicator, use the following fast key sequence to set
the Alarm and Saturation values.
Fast Key Sequence - 2, 2, 2, 5, 6
2. Manually set the direction for the Alarm to HI or LO using the ALARM
switch as shown in Figure 7-30.
Figure 7-30. Security and alarm
configuration
3051S SIS Operation and
Maintenance
Proof Test
The following proof tests are recommended.
Proof test results and corrective actions taken must be documented at
http://rosemount.d1asia.ph/rosemount/safety/ReportAFailure_newweb.asp
(to report a failure) in the event that an error is found in the safety functionality.
All proof test procedures must be carried out by qualified personnel.
Use “Fast Key Sequence” on page 3-6 to perform a Loop Test, Analog Output
Trim, or Sensor Trim. Security switch should be in the “OFF” position during
proof test execution and repositioned in the “ON” position after execution.
Simple Proof Test
The simple suggested proof test consists of a power cycle plus reasonability
checks of the transmitter output. This test will detect ~ 41% of possible DU
failures in the device.
Required tools: Field Communicator and mA meter.
1. Bypass the safety function and take appropriate action to avoid a false
trip.
2. Use HART communication to set the transmitter in fixed current mode.
For the Emerson Field Communicator, enter Fast Key Sequence 3, 5, 1.
Select “4 Other.”
3. Enter the milliamp value representing a high alarm state.
4. Check the reference meter to verify the mA output corresponds to the
entered value.
5. Enter the milliamp value representing a low alarm state.
6. Check the reference meter to verify the mA output corresponds to the
entered value.
7. Remove the bypass and otherwise restore normal operation.
8. Document the test results per your requirements.
9. Place the Security switch in the “ON” position.
Security
Alarm