U2, Signal Offset; U3, Output Signal Offset; U4, Signal Filter; U5, Sp1 Set Point Dead Band - Process Technology DQ15D Installation, Operation And Calibration Manual

U2, Signal Offset

This setting can be any number from -9 to +9. It represents an offset value
applied to the signal received from the sensor. Units (°C, °F, ohms) are
dictated by sensor type selected in
Temperature Sensor - Number represents degrees C or F as determined by F5 setting
Voltage Sensor - Number represents tenths of a Volt (0.1 VDC)
Current Sensor - Number represents hundredths of milliamps (0.01 mA)
Resistance Signal Devices - Number represents ohms.
Frequency Signal Devices - This setting will have no effect.

U3, Output Signal Offset

U3 adjusts the optional 4-20 mA process value output. It can be any number
from -9 to +9 and is added to the signal level to cause the value to be rounded in
an intelligent receiving device. This does not affect display value.
This function requires either the optional 5416 or 5419 sensor boards.
The default and minimum for the parameter is one (1).
Temperature Sensor - Number represents degrees C or F, determined by the F5 setting
Voltage Sensor -Number represents tenths of a volt (0.1 VDC)
Current Sensor -Number represents hundredths of milliamps (0.01 mA)
Resistance Signal Device -Number represents ohms
Frequency Signal Device -Setting represents hertz (counts/second)

U4, Signal Filter

This setting can be any number from 1 to 64. It represents the number of
samples taken from the sensor and maintained in memory which are then
averaged to provide an active filter of the signal. Using a small value for this
setting will cause the DQ15D to respond more quickly to sudden changes in the
sensor signal level, but will cause the unit to be more susceptible to EMI/RFI
noise. As the value increases, the susceptibility to inference reduces.
The default setting value is four (4). When sensing temperature with a 100ohm
RTD (2 or 3 wire), set the value to twenty (20) to reduce control error.
When sensing frequency signal, this setting establishes the time period for
the controller to wait for a pulse signal. Use two (2) for this value, when
measuring frequency. This causes the control to measure frequencies as low
as 1 hertz while updating the display once every two seconds.

U5, SP1 Set Point Dead Band

This setting, which may be any number from 1 to +99 represents a dead
band that only applies to the
The default and minimum for the setting is one (1).
Temperature Sensor - Number represents degrees C or F determined by F5 setting
Voltage Sensor -Number represents tenths of a volt (0.1 VDC)
Current Sensor -Number represents hundredths of milliamps (0.01 mA)
Resistance Signal Devices - Number represents ohms
Frequency Signal Devices -Setting represents hertz (counts/second)
This bandwidth applies to the low side of the SP1 SET POINT. If the U5
setting is set at 5° F and the SP1 SET POINT is set at 115° F, then the Set Point
relay is de-energized when the (displayed) temperature reaches 115° F and it is
reenergized when the temperature falls to 110° F.
M-34-01
Revision - Date: 01 - 04/23/08
settings.
U1
. This is the heat Set Point.
SP1 SET POINT
20
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DQ15D Manual