
FMS-2000M
LIT-12013580
21
Sensors
You can conduct a zero calibration and set alarm limits for each pressure sensor. On the zero calibration menu, you can create the zero
offset and reset the zero offset. Swipe the screen to set each sensor.
Zero calibration
With the door to the monitored room open, the differential pressure that the FMS-2000M monitor measures usually approaches zero.
However, due to imperfections in the sealing of the remote sensor enclosure and due to pressure accumulation in the wall, the pressure
reading does not reach zero. If you leave the monitored room’s door open to allow pressure to equalize, it is common for the differential
pressure to read up to 0.0010 in. W.C or 0.249 Pa.
Creating a zero offset
1. Leave the door open to equalize the pressure between the monitored space and the reference space.
2. On the home screen, tap the
Settings
icon to enter the settings menu.
3. To view analog input settings, tap
Analog I/O
.
4. On the analog screen, tap the
Zero Calibration
arrow.
5. On the zero callibration screen, tap the
Create Zero Offset
arrow.
6. Follow the instructions on screen and wait for the real-time view reading on the screen to stabilize for at least 10 seconds.
7.
To create a zero offset, tap
Proceed
.
Resetting the zero offset
If creating a zero offset does not result in a zero differential pressure reading when the pressure is equal, reset the zero offset before
you repeat Creating a zero offset.
1. On the home screen, tap the
Settings
icon to enter the Settings menu.
2. To view analog input settings, tap
Analog I/O
.
3. On the analog screen, tap the
Zero Calibration
arrow.
4. On the zero callibration screen, tap
Reset Zero Offset
.
5.
On the Reset Zero Offset screen, tap
Proceed
.
6.
To confirm the new settings, tap the
Checkmark
icon.
Setting up alarms for each pressure sensor
1. On the home screen, tap the
Settings
icon.
2. On the Settings screen, tap
Sensors
.
3. On the Sensors screen, tap the
Alarms
arrow.
4. On the Alarm screen, switch
Alarm Enabled
on.
5. For each alarm limit, tap the arrow.
6. Enter the alarm limit and tap the
Checkmark
icon to confirm your settings.