|TestEquity F4 Programmable Controller|
The F4 Programmable Controller features a four line, high definition LCD interface display that makes profile programming and controller configuration significantly faster and easier. A large LED readout indicates the actual chamber temperature with 0.1°C or °F display resolution. Internal logic provides refrigeration compressor control based on the demand for cooling for responsive and reliable performance.
The controller is packaged with a NEMA 4X front face to withstand harsh environments. It is manufactured for TestEquity by Watlow and backed by a three-year warranty.
Set Point Ramp
and Soak Programming
A profile guide leads the programmer through the programming process by offering choices for step configuration. For better operator recognition profiles and digital I/O used for events can be given names of up to 10 characters in length.
Five step types including ramp, soak, jump, auto start and end offer the programmer complete flexibility.
Five step types including ramp, soak, jump, auto start and end offer you complete flexibility. Ramp steps can be based on time or rate. Ramp and soak steps can be programmed to wait for up to four event inputs and three process variables. Up to seven event outputs are step selectable. Five sets of PID heat/cool parameters are also step selectable. The auto start step can start a profile based on a set date, a day of the week, or daily. The jump step can be used to jump within a profile or to another profile.
Temperature Controller Specifications
|Accuracy & Sensor Conformity*||±0.55°C,
±1 LSD (above -50°C)
±0.65°C, ±1 LSD (below -50°C)
|Stability||±0.1°C/°C rise in ambient|
|Digital Inputs||Four inputs. Contact closure or dc voltage, 10 kohm impedance|
0 to 10 VDC, 0 to 5 VDC, 1 to 5 VDC
0 to 20 mA, 4 to 20 mA
|Alarm Outputs||Two alarm
Electromechanical relay, Form C, 2 A @ 20 VDC or 240 VAC max.
open-collector ouputs available for customer use.
OFF: 42 VDC @ 10 µA max.
ON: 0.2 VDC @ 50 mA sink max.
Internal supply: 5 VDC @ 80 mA
|Communications||RS-232 and RS-485 serial communications with Modbus RTU protocol|
|Safety & Agency Approvals||UL/c-UL
916-listed, File #E185611
CE to EN61010
NEMA 4X and IP65
CE EMC to EN50082-2
CE EMC to EN55011
5, seven-segment red LED
Interface Display: 4-line high-definition green LCD
Selectable °C or °F
|Data Retention||Retention upon power failure via nonvolatile memory (seven years for battery-backed RAM)|
|*Note: Total system accuracy in the chamber includes thermocouple wire accuracy. Thermocouple wire accuracy is ±1°C or 0.75% of reading, whichever is greater.|
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