Watlow F4T User Manual

Watlow F4T • 204 • Chapter 5 Function Reference
Run Active Level
Set in which state at RUN the timer counts up.
Options:
• High: off
• Low: on
Reset Active Level
Set which state change at RST resets the timer.
Options:
• High: off to on
• Low: on to off
Transmitter Active Level
Set the state of the ouput that indicates the elapsed time is greater than or equal to the
Time setting.
Options:
• High: On
• Low: Off
Elapsed Time
Indicates the cumulative time the input has been active since the timer was last reset.
Range: 0 to 30,000.0
Note:
The elapsed time is not retained through a power loss; it is set to zero upon power up.
Universal Input
Use this block to condition a temperature measurement made with a thermocouple or RTD or
another analog process signal. Refer to the sections below for descriptions of the Universal In-
put and each sensor type it supports:
About the Universal Input: overview of this block.
Scaling Voltage and Current Inputs to Process Units: overview and example of linear scaling of
process inputs.
Millivolts: use this sensor type to measure and condition and scale a voltage input.
Off: when set to off, the FB will be in error (Not Sourced) and the control loop (if connected)
will be held at 0% power output.
Thermocouple: use this sensor type to condition a temperature measurement made with a
thermocouple.
Volts: use this sensor type to measure, condition and scale a voltage input.
Milliamps: use this sensor type to measure, condition and scale a current input.
RTD 100 Ohm: use this sensor type to condition a temperature measurement made with an
RTD.

Watlow F4T Specifications

General

Inputs	Thermocouple, RTD, mA, V
Outputs	Relay, SSR, mA, V
Communication	Ethernet, Modbus RTU
Data Logging	Yes
Certifications	CE, UL, cUL, RoHS
Control Modes	PID, On/Off
Power Supply	100 to 240 VAC
Operating Temperature	0 to 50°C
Enclosure Rating	IP65
Display	4.3 in. (109 mm) color touch panel LCD
Control Loops	Up to 4