Johnson Controls FMS-2000C User Manual

FMS-2000C
LIT-12013504
25
Setting up the sensor range
You can congure the sensor range, if the sensor type is Remote Digital. The default sensor range is +/- 0.25 in. W.C.
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. To nd the analog input you want to adjust, swipe left.
4. On the ANALOG screen, expand Sensor Range and choose from the following:
• +/- 0.01 in. W.C.
• +/- 0.05 in. W.C.
• +/- 0.10 in. W.C.
• +/- 0.20 in. W.C.
• +/- 0.25 in. W.C.
5. To save the new settings, collapse Sensor Range.
Adjusting deadband
This parameter species the deadband applied to the pressure input signal for control purposes. When the input signal is within the
deadband, the corresponding PID control output remains constant.
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. To nd the analog input you want to adjust, swipe left.
4. On the ANALOG screen, tap the Deadband arrow.
5. Enter the Deadband value.
6. To conrm the new settings, tap the Checkmark icon.
Zero Calibration
The Zero Calibration and Reset Zero O󰀨set options can be used to reset the zero pressure reading for a specic installation. Once the
FMS-2000C controller has been installed completely with any peripheral remote sensor modules, this feature can be used to recalibrate
the controller’s zero reading to read accurately with the door to the monitored room left open.
With the door to the monitored room open, the di󰀨erential pressure measured by the FMS-2000C controller usually approaches
zero. However, due to imperfections in the sealing of the remote sensor enclosure and pressure accumulation in the wall dividing the
monitored room and the adjacent corridor, the pressure reading does not reach zero. It is common for the di󰀨erential pressure reading
to be up to 0.0010 in. W.C. with the monitored room’s door left open to allow pressure to equalize.
Creating a zero o󰀨set
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 CALIBRATION screen, tap the Create Zero O󰀨set arrow.
5. Follow the instructions on screen and wait for the real-time view reading on the screen to stabilize for at least 10 seconds.
6. To create a zero o󰀨set, tap Proceed.
Resetting the zero o󰀨set
If creating a zero o󰀨set does not result in the di󰀨erential pressure reading being zeroed, you can reset any existing o󰀨set using the
Reset Zero O󰀨set option. Use this option before repeating Creating a zero oset.
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 CALIBRATION screen, tap Reset Zero O󰀨set.
5. On the RESET ZERO OFFSET screen, tap Proceed.
6. To conrm the new settings, tap the Checkmark icon.
Setting the alarms
By default, the FMS-2000C Critical Environment Controller comes preset in neutral isolation mode. You cannot set alarms in neutral
isolation mode. If this is the rst time you are conguring AI-1 or AI-2 for pressure, change the isolation mode for the primary or
secondary space from neutral to either positive or negative before you can set the alarm. This does not apply to AI-3 or AI-4. See
Changing the alarm limits, if this is not the rst time you are setting up the alarms.

Johnson Controls FMS-2000C Specifications

General

Brand	Johnson Controls
Model	FMS-2000C
Category	Controller
Language	English