Signal Offset (U2); Output Signal Offset (U3); Signal Filter Setting (U4); Set Point 1 Dead Band (U5) - Process Technology DQ15D Instruction Manual

This setting, which may be any number from -9 to +9, represents an offset value which is applied to the signal
received from the sensor. The units (ºC, ºF, ohms, etc.) will be dictated by the type of sensor selected in "U1" settings.
Temperature Sensor
Voltage Sensor
Current Sensor
Resistance Signal Devices
Frequency Signal Devices
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 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: Setting represents hertz (counts/second).
This setting, which may be any number from 1 to 64, represents the number of samples taken from the
sensor and maintained in memory. These samples are then averaged to provide an active filter of the signal.
Using a small value for this setting will cause the DE20 control to respond more quickly to sudden changes in
the sensor signal level, but this also causes the unit to be more susceptible to EMI/RFI noise. As this value is
increased, the susceptibility to inference is reduced.
The default value for this setting is four (4).
Note: When sensing temperature with a 100 ohm RTD (2 or 3 wire), set this 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 sig-
nal. 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.
This setting, which may be any number from 1 to +99 represents a dead band that only applies to the SP1 SET
POINT. This is the heat Set Point.
The default and minimum for the setting is one (1).
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: 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-34-01-06 3/31/2016
U2, Signal Offset
Number represents degrees Celsius or Fahrenheit as
determined by the "F5" setting
Number represents tenths of a volt (0.1 VDC)
Number represents hundredths of milliamps (0.01 mA)
Number represents ohms.
This setting will have no effect.
U3, Output Signal Offset
U4, Signal Filter
U5, SP1 Dead Band
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DQ15D/T-DQ15D Manual