Section 2: Features And Specifications - Emerson Bettis 2000 Series User Manual

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Installation, Operation and Maintenance Manual
MAN-02-04-55-0735-EN Rev. 0

Section 2: Features and Specifications

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 deadband, delay time, etc.
Automatic calibration of position input to valve travel limits when selector switch is position
at LOCAL MODE.
Built-in protection for motor and motor controls.
DC motor speed control for Futronic III and Futronic VII.
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. When selector switch is at OFF position only.
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%.
Table 1.
Control Accuracy
Nonlinearity
Operating
Temperature
Range
Humidity
Features and Specifications
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
Futronic VII mode
+/- 0.25% @ 15 second stroke time or greater
<0.05% of calibrated analog input and output over full range of 0-100%.
-40 °C to +85 °C (-40F to +185F)
10% - 95% (Non-condensate)
Section 2: Features and Specifications
July 2019
2

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