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75
Reference Manual
00809-0100-4140, Rev AA
January 2017
To change device-test parameters (LOI)
1.
Press any LOI button to activate the menu.
(See
for assistance with using the LOI buttons).
2.
Scroll down (
) and then select
EXTENDED MENU
(
).
3.
Scroll down (
) and then select
DEVICE TEST
(
).
4.
Choose the device-test parameter to change:
c.
Select
DURATION
for setting how long the test lasts.
d. Select
START-UP
for setting if device-testing at start-up is enabled/disabled.
5.
Exit the menu system by either waiting one minute for the
EXIT MENU?
prompt, or
scrolling down the menus to find and select
BACK TO MENU
and
EXIT TO MENU
.
Note
When messages about the loop appear, take appropriate safe action and select “
”.
See
“Configuration basics” on page 10
for further information.
5.4.2
Proof tests
The Rosemount 2140:SIS must be tested at regular intervals to detect any failures not
automatically detected by the device self-test at start-up and the continuous fork sensor
diagnostics when operating in Enhanced mode (
).
For full information about proof testing the Rosemount 2140:SIS, refer to the
Functional
Safety Manual
.
5.4.3
Verifying alarm level (optional)
If the electronics board, sensor module, or LOI display is repaired or replaced, verify the
alarm current level before returning the level detector to service. This is useful in testing the
reaction of the control system to a level detector in an alarm state. Thus ensuring the
control system recognizes the alarm when activated.
To verify alarm values, run an analog loop test with the simulate alarm option selected
(
). Ensure that the alarm switch is in the required high or low position (
).
Note
Before returning to service, verify the security switch is set to the correct position.
Refer to
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