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FMS-1655L PROGRAMMING
Basic Programming
Figure 4. Alarm Mode
Main Display Screen
(Dual Sensor Models)
When configured for dual sensor mode, the
FMS-1655L unit is shipped with the primary
sensor channel in neutral isolation mode.
The secondary sensor channel has no
isolation mode associated with it, and is
displayed with a green graphical background.
The split screen view
(see Figure 5)
the names associated with each monitored
space (up to 25 characters), the current
differential pressures for each space, the
current status icon, and the alarm buzzer
enable status at the lower right corner. The
colors of the graphical background associated
with the primary pressure (top view) are
as described in the previous section, and
represent the status of the primary monitored
space.
Figure 5. Dual Sensor Mode Split Screen
Configuring the FMS-1655L
Configuring the FMS-1655L settings can be
accomplished in three simple steps:
1. Configure alarm limits
2. Set target setpoints
3. Setting up the analog output
The FMS-1655L comes pre-configured to
includes
operate with a remotely mounted differential
pressure sensor module. The first step
in configuring the FMS-1655L, following
installation, is to configure the alarm and
warning setpoints for each mode of isolation.
If this unit is only used for monitoring and
is not used to control a damper actuator to
maintain a pressure setpoint, then this is the
only required step to set up the FMS-1655L.
Configuring Alarm Limits
To determine the limits at which the unit status
changes from normal to warning, and from
warning to alarm, the alarm limits must be
configured.
To access the alarm limit settings, select the
Unit Setup option from the Main Setup Menu.
At the Unit Setup menu, select the Alarm
Limits option. The high and low alarm limits,
as well as the high and low warning limits, for
the currently selected isolation mode may be
specified in sequence. These limits should
be specified to set the differential pressure
range which should be considered normal, as
well as the range which indicates a warning
condition, and the range which is considered
critical and indicates an alarm condition.
Set Target Setpoints
If this FMS-1655L is being used for monitoring
only and does not control an exhaust or
supply damper actuator to maintain a
specified differential pressure, then skip this
step and the analog output step. Otherwise,
target setpoints must be specified to allow the
unit to control to specific differential pressures
for each mode of isolation.
To specify the target setpoints for the FMS-
1655L select the Unit Setup option from the
Main Setup Menu, and then select the Room
Setup option. At the Isolation Room Setup
menu, select the Edit Setpoints option. The
target setpoints for positive, negative, and
neutral isolation modes may be specified in
sequence for either occupied or unoccupied
modes.
The final step in setting up the FMS-1655L is
to configure the analog output used to control
the damper actuator in the monitored isolation
room.
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