System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin
44
The Select Temperature Offset screens are:
• Sensor Type °F, which enables an offset of up to +/- 5°F in 1-degree increments.
• Sensor Type °C, which enables an offset of up to +/- 2.5°C in 0.5-degree increments.
The temperature offset adjusts the displayed temperature value, sensed at the sensor, by the offset value. For
example, if the measured value is 72(°F) without an offset, and a -2(°F) offset is selected, the measured value is
offset -2(°F) and the displayed value is 70(°F).
To set up the sensor’s Sensor Type and offsets for the temperature sensors as follows:
1. Access the System 450 UI and navigate to the Sensor Setup Start (SENS) screen (Figure 23).
2. In the Sensor Setup Start (SENS) screen, press to go to the next screen.
3. In the Select Sensor 1 Type (Sn-1) screen, press or to scroll through the Sensor Types. When the
desired Sensor Type is displayed (blinking), press to save the Sensor Type selection and go to the Select
Sensor 2 Type screen.
4. Repeat Step 3 in the Select Sensor 2 Type (Sn-2) screen and Select Sensor 3 Type (Sn-3) screen if your
control system uses a second or third sensor.
After you have selected the correct Sensor Type for each sensor in your control system, the sensors are set up
in the UI and can be selected and referenced by the outputs that you set up in the system.
Note: System 450 standard control modules provide for three functional sensors. When Sn-1 and Sn-2 are set up
as the same Sensor Type, the High Input Signal Selection functional sensor (HI-2) and Differential Control
functional sensor (Sn-d) are enabled and available in the Sensor Selection screens for each output. When
Sn-1, Sn-2, and Sn-3 are the same Sensor Type, the High Input Signal Selection functional sensor (HI-3) is
also enabled and available. See High Input Signal Selection
on page 23 and Differential Control on page
24 for more information on these functional sensors and the associated control features.
5. If a temperature Sensor Type (°F or °C) is selected for a sensor in your control system, a Select Temperature
Offset (OFFS
x
) screen is displayed after the Select Sensor 3 Type (Sn-3) screen (for each temperature
sensor in your control system). Select the desired temperature offset by pressing or . Press to save the
offset value and go to the next screen.
6. After all of the sensors and temperature offsets are set up:
• Press to return to the Sensor Setup Start (SENS) screen; then press to scroll through the output
setup start screens and set up the outputs in your control system. (See Setting up Control System Outputs
on page 45 for procedures on setting up outputs for your control module.)
• Allow the UI to remain dormant for 2 minutes and the Main screen begins to autoscroll. You may also
return to the Main screen by pressing and simultaneously while a Setup Start screen is displayed.
Figure 23: Sensor Setup Start, Select Sensor Type,
and Select Temperature Offset Screens
M
To Next Page
Loading...
Need help?
General
