Emerson Net Safety MLP-A-SC1100, User Manual, Page: 33 / 56

Operations Manual
FGD-MAN-0047 January 2017
23
Section 8: Monitor
8.1 Review relay settings
This is a read-only mode; changes cannot be made.
1. Press and hold the Calibration button or hold the magnet to the
reed switch to enter the main menu; wait for the countdown,
from 10 to 0, to end.
2. When Review Relay Settings displays, press the Calibration button
or use the reed switch to select. The flashing YES confirms the
selection.
3. The fault alarm is fixed (energized/non-latching) and displays first;
then the low alarm level, coil, and latch status display, followed by
the high alarm level, coil, and latch status.
4. At this point, the option to Set Relay Options YES? is displayed.
8.2 Set relay option
Use to set the alarm level, coil status and latch status for the low and
high alarm relays (fault alarm is fixed). The following table describes the
default settings for the relays.
The high and low relay configurations are set up independently of each
other.
Table 8-1 Default relay settings
8.2.1 Steps in setting relay options
There are two settings for Relay Options: Low and High. The fault relay is
fixed as energized/non-latching and cannot be changed. The low alarm
level, coil energization, and latch status are set first; high alarm level,
coil energization, and latch status are then set. All ranges are in %LEL.
Low and High alarm levels will be displayed if reached.
1. When Set Relay Options YES? displays press the Calibration button
or use the reed switch to select.
The flashing YES confirms the selection. The message Set Low
displays. Low Alarm set-points are then displayed in increments of
5 (0 to 55).
2. When the required level displays, press the Calibration button or
use the reed switch to select. The level selected will flash to confirm
the selection.
Millennium
model # Alarm levels Coil Status
Low
*
High
*
Fault
Lat
chi
n
g
N
on
-l
at
chi
n
g
Ene
rg
ize
d
De
-
ene
rg
ize
d
MLP-A/AR/AD-
SC1100 and
MLP-LP-
A/AR/ARS-
SC1100 20% 40% Fixed as
energized
and non-
latching
* *