User Manual
84829 Rev. D March 2013
Features and Specifications
Section 2: Features and Specications
• Integral auto-tuning PID control maximizes accuracy without any user adjustments.
• Digital microcontroller adapts to any actuator and valve size, speed/stroke-time,
process pressure, etc. by automatically tuning controls to obtain maximum
accuracy without any user adjustments for bandwidth, delay time, etc.
• Automatic calibration of position input to valve travel limits.
• Built-in protection for motor and motor controls.
• DC motor speed control for Futronic III.
• Easy setup and calibration to user’s external analog control signal input and analog
feedback output. All setup and calibration adjustments by on-board DIP switches
and two miniature push buttons.
• LED indicators for normal/fault operating conditions, setup mode, loss of analog
signal, and solid-state motor control output.
• Isolated Analog Input: 4-20mA with 12-bit (.025%) resolution (calibration range
of 0-24mA). 210 Ohms input resistance. Operates from 10V to 32V loop supply.
Allows up to 750 Ohms loop resistance at 24V.
• Isolated Analog Output: 4-20mA with 16-bit (.0015%) resolution (calibration
range of 0-24mA). Drive loop resistance up to 750 Ohms. True current source with
internal 24VDC power supply. No external power source required to power loop.
Internal automatic resetting fuse for 24VDC power supply.
• Isolation dielectric strength: 2500V AC for 1 Minute (Input to output and I/O to
ground).
• Inverted Analog I/O Option: where 20mA = close valve position and 4mA = open
valve position.
• Go To Default Position Option: On loss of control signal, user selected default valve
position anywhere between 0 and 100%.
• Control Accuracy:
— Futronic II mode +/- 1.0% @ 15 second stroke time or greater
— Futronic III mode +/- 0.25% @ 15 second stroke time or greater
— Futronic IV mode +/- 0.5% @ 15 second stroke time or greater
• Nonlinearity: <0.05% of calibrated analog input and output over full range of 0-100%.
• Operating Temperature Range: -40C to +85C (-40F to +185F),
Humidity: 10% - 95% (Non-condensate)
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Section 2: Features and Specifications