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 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
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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 |
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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
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 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. |
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