Eurotherm/Barber-Colman 7EF, HF

Up to 4 Outputs, 3 Independent Alarms

Setpoint Select from External Contact

PID and Smart AT Autotuning

NEMA 4X, IP65

Universal Input (6 T/c, RTD, mV, V, mA)

Algorithms for Heat or Heat/Cool Control

Control Output Disable Function

Optional Heater Breakdown Alarm

Optional Digital Comms

for 7EF

for 7HF

	Designed for equipment manufacturers who demand tight process control and a full suite of advanced features, the 7EF/7HF offers outstanding performance as a 4-digit 1/8 DIN controller in a choice of vertical and horizontal format. Identical in features, the 7EF and 7HF are configurable for heat or heat/cool PID controllers with Smart AT auto or adaptive tuning, universal inputs, up to 4 outputs and up to 3 independent configurable alarms. They are ideal for demanding applications such as laboratory furnaces and ovens, autoclaves and chambers where 4 digits are required. The 7EF/7HF have bright dual displays for process temperature and setpoint and 10 LED		beacons for operating status. Three outputs can be programmed as heating + 2 alarms or heating/cooling + 1 alarm. Optional OP4 can be configured as Alarm 3 or as the heater breakdown alarm. Alarms can be process, deviation or band type, direct or reverse, with masking and programmable automatic or manual reset. Both units have 2 setpoints, selectable by a logic input. Transfer between setpoints can be step or ramp (2 selectable ramp rates). Optional RS-485 digital communications are available for connection to supervisory computers. A NEMA 4X front panel allows these instruments to work in severe environments.
	A Variety of Standard and Optional Features Among the 7EF/7HF standard features are bumpless auto/manual transfer, password security and Auto Comp™ sensor break. An alarm standby feature allows masking of alarm conditions until the PV reaches the low alarm threshold. The 7EF/7HF also have an "output off" function which disables the control output, allowing the instrument to operate as an indicator but return smoothly to control when the output is again enabled. The optional Heater Breakdown Detection feature allows measurement of the load by a current		CT Part Number: 7ER-Rx000-0000 x=1 (10A), x=2 (25A), x=4 (50A), x=5 (100A) transformer, displaying the full scale load current, and signaling an alarm condition to an alarm OP when the current is below a programmed threshold.

Last updated January 9, 2004

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