WILKERSON INSTRUMENT CO., INC.

MM7501 DC Input
Plug-In Mighty Module Integrator

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MM7501

MM7501
DC Input
Plug-In
Mighty Module
Integrator

$358.00

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

Power:

Input:
Zero Scale
Full Scale
Units
Output: Zero Scale
Full Scale
Units

Quantity:

 

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Specifications
 
  • Features
  • Description
  • Specifications
  • Dimensions
  • Connections
  • Provides an Output Pulse Rate Proportional to the DC Input
  • 1 V or 1 mA Minimum Input Span
  • Unlimited Choice of Input / Output Ranges (Within Specified Range Limits)
  • Choice of Power Options
  • 10 Year Warranty

The MM7501 is used, together with a counter, to integrate or totalize flow and other signals. Its output is a pulse rate proportional to a DC input. When totalized on a counter, the pulses indicate the total flow or other quantity being measured.

Typical input ranges are 4/20 mA, 10/ 50 mA, 0-1 V, 0-5 V, and 0-10 VDC. Other ranges are available down to minimum spans of 1 V or 1 mA DC. The MM7501 includes a frequency scaler (binary pulse rate divider) which, together with wide-ranging zero and span controls, provides a 4096:1 range of output pulse rate adjustment. This allows the output to be scaled in engineering units (one pulse equals 1,000 gallons, for example). The output may be an spdt relay, a voltage pulse suitable for driving a 12 V electromechanical counter or an open collector output.  An integrating DC to frequency converter generates the basic pulse rate.

All Wilkerson products are designed with RFI filters and lightning protection to reduce susceptibility to electrical noise and damage by lightning.

TYPICAL APPLICATIONS

Totalizing flow, BTU, or any other quantity that can be represented in quantity per unit time.

NPUT RANGE
Voltage select any range from 0 to 10 V max
(min span 1 V)
Typical inputs: 0-1 V, 0-5 V, 0-10 V
Current select any range from 0 to 100 mA max
(min span 1 mA)
Typical inputs: 4/20 mA or 10/50 mA

INPUT IMPEDANCE
Voltage 1 megohm
Current 2.0 V drop typical,
others available

OUTPUT RANGE
7 pph min to 8 pps max @ 20 mA input
(user adjustable: 1 pps max with relay)

TYPE OUTPUT
Relay (standard) spdt, 1 A contact
Transistor (Option OC) open-collector npn transistor
sink 0.5 A, 24 V max
Pulse (Option V) 12V 60 msec pulse width others available

 

ACCURACY
±0.1% of span

LINEARITY
±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
±0.04% of span/°C max

POWER
115 VAC ±10%, 50/60 Hz (2.5 W max)
230 VAC ±10%, 50/60 Hz (2.5 W max)
(DC Power Option)
24 VDC (limits 21-32 VDC)
12 VDC (limits 10-16 VDC)

Isolation, DC power supply to input common: 10 megohms

Mighty Module Dimension Drawing

PIN 1
PIN 2
PIN 3
PIN 4
PIN 5
PIN 6
PIN 7
PIN 8
Power Supply +
No Connection
Power Supply -
Input +
Input -
Relay NC
Relay C
Relay NO
Specifications    Manual

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