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Watlow F4T User Manual

Watlow F4T
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Watlow F4T 181 Chapter 5 Function Reference
Add
This function sums up to four inputs. Only inputs connected to a source are used in the calcu-
lation. A filter and offset may be applied to the calculated value. If any input is an absolute
temperature, the output is also an absolute temperature; otherwise the outputs units are
those of the signal connected to the top input.
Signals
Direction
Label Type Function
Receivers
- - - - Analog Value to be summed
- - - - Analog Value to be summed
- - - - Analog Value to be summed
- - - - Analog Value to be summed
Transmitter - - - - Analog The filtered sum of the inputs plus the offset
Function
To sum up to four inputs, set Function to Add.
Offset
Adjustment added to the result of the calculation.
Range: -99,999.000 to 99,999.000
Filter
Set the amount of filtering to apply. Filtering smooths signal fluctuations. Increase the time to
increase filtering. Excessive filtering slows the functions response.
Range: 0.0 to 60.0 seconds
Multiply
This function multiplies up to four inputs. Only inputs connected to a source are used in the
calculation. A filter and offset may be applied to the calculated value. If any input is an ab-
solute temperature, the output is also an absolute temperature; otherwise the outputs units
are those of the signal connected to the top input.
Signals
Direction
Label Type Function
Receivers
- - - - Analog Value to be multiplied
- - - - Analog Value to be multiplied
- - - - Analog Value to be multiplied
- - - - Analog Value to be multiplied
Transmitter - - - - Analog The filtered product of the inputs plus the offset
Function
To compute the product of up to four inputs, set Function to Multiply.

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Watlow F4T Specifications

General IconGeneral
InputsThermocouple, RTD, mA, V
OutputsRelay, SSR, mA, V
CommunicationEthernet, Modbus RTU
Data LoggingYes
CertificationsCE, UL, cUL, RoHS
Control ModesPID, On/Off
Power Supply100 to 240 VAC
Operating Temperature0 to 50°C
Enclosure RatingIP65
Display4.3 in. (109 mm) color touch panel LCD
Control LoopsUp to 4

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