WILKERSON INSTRUMENT CO., INC.

MM3200 DC Input Valve Actuator / Controller
Mighty Module

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MM3200

MM3200
DC Input
Valve Actuator / Controller
Mighty Module

$300.00

The following information must be entered to complete your order:
See "Specifications" below for Input range limits.

Power:

Input:

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  • Features
  • Description
  • Specifications
  • Dimensions
  • Connections
  • Provides Relay Contact Closures Comparing a DC Input to a Potentiometer Position Input
  • Relay Safety Interlock
  • Potentiometer Values from 120 ohms to 100 kilohms
  • Adjustable Deadband (Differential)
  • Choice of Input Ranges
  • 10 Year Warranty

The MM3200 controller compares a DC input signal to a DC signal from the slide position of a potentiometer in a valve or linear actuator. The module has two spst relays to provide bi-directional (open-close) ON/OFF switches. When the input signals are unequal, the MM3200 provides a contact closure to turn on a motor which drives the valve open or closed. When the signals become equal, the contact opens and the motor stops. The deadband control adjusts the sensitivity of the module and determines the amount of error required before the relay closes. Adjustment of 0.25% to 50% of span is available.

Two relays are used for the open and close switches. Each relay has dpdt contacts. One set is used for motor control. The other set is used to control the supply voltage to the other relay coil. This relay safety interlock feature makes it impossible to have both relays closed (both motors on) at the same time.

The module can also be used with a manual potentiometer and the contact closures to drive a process until the DC input signal matches the potentiometer setting.

All Wilkerson products are designed with RFI filters and lightning protection to reduce susceptibility to electrical noise and damage by lightning. It utilizes a stable -1.23 V power supply to excite the potentiometer.

TYPICAL APPLICATIONS
Valve or actuator position control, pH acid/ base pump control, etc.

INPUT RANGE
Voltage select any range from 0 to 1 VDC to 0 to 10 VDC max
Current 4/20 mA (others available)

INPUT IMPEDANCE
Voltage 100 kilohms
Current 62 ohms

POTENTIOMETER FEEDBACK
70% or greater rotation required to match full scale input

POTENTIOMETER RESISTANCE
select any value from 120 ohms to 100 kilohms
DEADBAND
0.25% to 50% of span

EXCITATION
-1.23 V, 10 mA max load

RELAY CONTACT
(2 each spst)
Resistive Load 5 A max, 150 W max,
220 VAC max,30 VDC max
Inductive Load (Power factor >0.4) 2.5 A max, 75 W max,
220 VAC max, 30 VDC max

RESPONSE TIME
120 ms typical

ACCURACY
±0.1% of span

COMMON MODE REJECTION
120 dB, DC to 60 Hz

OPERATING TEMPERATURE
14°F to 140°F/-10°C to 60°C

TEMPERATURE STABILITY
±0.02% of span/°C max

POWER
115 VAC ±10%, 50 or 60 Hz (2.5 W max)
230 VAC ±10%, 50 or 60 Hz (2.5 W max)

Mighty Module Dimension Drawing

PIN 1
PIN 2
PIN 3
PIN 4
PIN 5
PIN 6
PIN 7
PIN 8
PIN 9
PIN 10
PIN 11
Power AC L1 or DC +
Potentiometer Input FS
Power AC L2 or DC -
Control Input +
Control Input -
Feedback (Pot) Common
Feedback (Pot) Wiper
Feedback (Pot) Excitation
Relay Common
Close Relay NO
Open Relay NO
Specifications    Manual

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