Badger Meter Research Control Valve - Manual (Page 7)

OPERATION
The Model EVA-100/200 consists of a microprocessor-controlled, stepper motor The stepper motor produces torque, which
is transmitted to the output shaft through a non-rotating drive screw This allows the low torque, high speed motor output to
be converted to high thrust for actuator output shaft motion The built-in servo drive amplifier controls the stepper motor’s
speed and direction It also controls actuator end limits, motor torque, deadband and 4-20 mA transmitter
SPECIFICATIONS
Standard Line Voltage 120/240V AC operation, ± 10% (Slide switch selectable)
Frequency 50/60 Hz
Power 120/240V AC operation – 36VA
Signal Inputs 4…20 mA, 0…5V DC, 0…10V DC
Incremental Control Input
(On/Off control)
Two isolated, dry contact closures required
Position Transmitter 4…20 mA isolated, loop-powered with 12…36V DC external power supply
Field Wiring Terminations Plugable terminal block, wire size range 26…14 AWG
Loss-of-Signal Fail to Zero, Span or Lock Last (user-selectable)
Adjustable Limit Switches 4 available, open transistor low level logic outputs, adjustable over stroke
range Rating: 40V DC at 40 mA maximum
Weight 16 lb (7 3 kg)
Conduit Entry Two 1/2 NPT
Temperature Limits – 40…150° F (– 40…65° C)
Enclosure Explosion-proof for Class I, Division 1, Groups C & D Type 4 (IP65), indoor or
outdoor (Vertical mounting only on outdoor installations)
Position Accuracy 1% of full range
Deadband Factory preset to 1%, field adjustable
Stroke 1 inch (25 4 mm) maximum
Ratings NEMA 4: Watertight
Explosion-proof: Class 1, Division 1, Group C & D
Standard models approved by CSA
Thrust: 200 lb at minimum step rate for EVA-200
Thrust: 100 lb at minimum step rate for EVA-100
Stroke
Model Sizes Stroke
RCV 1/4 in 0 438 in
RCV 1/2 in , 3/4 in , 1 in 0 562 in
9000 ALL 0 750 in
9100 1/2 in , 3/4 in , 1 in 0 750 in
9100 1-1/4 in , 1-1/2 in , 2 in 1 000 in
Stroke Speeds
Thrust
(lb)
Speed
(in./s)
0.438 0.562 0.75 1
Valve Stroke
(in.)
200 0 13 3 4 4 3 5 8 7 7 Stroke (sec )
150 0 19 2 3 3 0 3 9 5 3 Stroke (sec )
100 0 25 1 8 2 2 3 0 4 0 Stroke (sec )
User Manual
Page 7 February 2014