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T775U SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLER
17 62-0255—09
Fig. 31. Setup - Sensors - Sensor A - 0-5V, 0-10V, OR 4-
20MA - MIN and MAX Value (showing °F).
1.2.2.2.3. MIN or MAX VALUE
(Sensor A only;
0-5V, 0-10V or 4-20mA)
The minimum and maximum values display only for
Sensor A when its type is
0-5V,
0-10V or 4-20MA.
1. From the Sensor A selections, use the p and q but-
tons to highlight MIN VAL or MAX VAL.
2. Press the u button to display the units.
3. Use the p and q buttons to increase/decrease the
desired value.
Sensor Ranges:
°F-60.0 to 270.0
°C-51.0 to 132.0
PSI-500 to 500
IN WC-30.0 to 30.0
%0.0 to 100.0
PA-3000 to 3000
KPA-3000 to 3000
PPM 0 to 9990
NONE -9999 to 9999
4. Press the u button to accept the units and return to
the Sensor A selections.
Fig. 32. Setup - Sensors - Sensor A - Calibrate.
1.2.2.3. CALIBRATE (Sensor A or B)
Ensure that the wire size calibration value is within the
limits for the sensor.
• For temperature sensors, see “Temperature Sensor
Calibration” on page 11.
• For other sensors, see “Humidity, Pressure, and
Universal Sensor Calibration” on page 11.
1. From the Sensor A selections, use the p and q but-
tons to highlight CALIBRATE.
2. Press the u button to display the calibration value.
3. Use the p and q buttons to increase/decrease the
desired calibration value.
Default: 0.0
Sensor Range Temperature: +/-10°F (+/-6°C)
Other Sensor Range: +/-10% of the Min to Max
values specified previously. See Table 3 on
page 11 for examples.
4. Press the u button to accept the value and return to
the Sensor A selections.
Fig. 33. Setup - Sensors - Sensor A - Label.
1.2.2.4. LABEL (Sensor A or B input)
For a sensor already labeled, the display positions to and
highlights that label.
1. From the Sensor A selections, use the p and q but-
tons to highlight LABEL.
2. Press the u button to display the label list.
3. Use the p and q buttons to scroll through the list and
highlight the desired label.
You may need to scroll up or down to view all possi-
ble labels.
4. Use the u button to accept the highlighted label and
exit the list.
NOTE: The label names in list order are: Sensor,
Boiler, Outdoor, Duct, Dischrg, Chiller, Room,
Supply, Return, and Animals.
ENTER
MINIMUM
VALUE FOR
SENSOR A
SETUP
SENSORS
SENSOR A
MIN VAL
0.0
F
o
M24592A
ENTER
MAXIMUM
VALUE FOR
SENSOR A
SETUP
SENSORS
SENSOR A
MAX VAL
0.0
F
o
SETUP
SENSORS
SENSOR A
MIN VAL
OR
MAX VAL
SETUP
SENSORS
SENSOR A
CALIBRATE
ENTER
VALUE TO
CALIBRATE
SENSOR A
SETUP
SENSORS
SENSOR A
CALIBRATE
0.0
F
o
M24594
SETUP
SENSORS
SENSOR A
LABEL
SETUP
SENSORS
SENSOR A
LABEL
SELECT
LABEL FOR
SENSOR A
SENSOR A
BOILER A
OUTDOOR A
DUCT A
DISCHRG A
CHILLER A
ROOM A
M24595