MM4051 Text

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MM4051
STRAIN GAUGE (BRIDGE) INPUT
TRANSMITTER

FEATURES

Provides DC Output Proportional to a Strain Gauge Bridge Input

0.5 mV/V to 1 V/V Input Span

Unlimited* Choice of Input/Output Ranges

Choice of Power Options

10 + 5 Year Warranty

DESCRIPTION

The MM4051 provides an output voltage or current proportional to the output of a strain gauge bridge. It is useful in monitoring load cells, pressure transducers, and other strain gauge sensors.

The module includes filtering and conditioning to reduce susceptibility to transients and noisy operations. The MM4051 provides a well regulated excitation voltage for the strain gauge and a high quality differential preamplifier to condition the low level output from the bridge.

TYPICAL APPLICATIONS

Weight and pressure control, monitoring and data acquisition.

MOUNTING

The module is designed to plug into a standard 11-pin relay socket. Part number MP011 is a molded plastic socket suitable for mounting on a flat surface or in a 2 3/4 inch wide PVC snap track (TRK48). Use CLP-1 hold-down clip if needed. A Killark HK Series explosion-proof housing with dome and 11-pin socket is available (HKB-HK2D-11). A DIN rail mounted socket (DMP011) is available for 35mm symmetrical DIN rail.

SPECIFICATIONS

INPUT SPAN
0.5 mV/V to 1 V/V

INPUT IMPEDANCE
200 kilohms

EXCITATION
adjustable 4 V to 12 V
40 mA max

EXCITATION STABILITY
±0.005% /°C

OUTPUT RANGE
Voltage
select any range from -10 V to +15V
10 mA max load
(min span 0.2 V)

Current
select any range from 0 to 50 mA max
(min span 1 mA)
24 V compliance**

RESPONSE TIME
< = 500 ms
(range dependent)

ACCURACY
±0.1% of span

LINEARITY
±0.01% of span

COMMON MODE REJECTION
120 dB, DC to 60 Hz

BREAKDOWN, P0WER/CIRCUITRY
>1500 VAC rms

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

TEMPERATURE STABILITY
±0.02% of span/°C max

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

230 VAC ±10%, 50/60 Hz
(2.5 W max)

DC Power Option
24 VDC
    (limits 21-32 VDC)
    (2.5 W max)
Isolation
    DC power supply to input common:
      10 megohms

* Within specified range limits

** Compliance: The sum of all voltage drops in the output loop cannot exceed 24V at rated current (1200 ohms 20 mA).

CONNECTIONS
Power AC L1 or DC +
Power AC L2 or DC -
Input Signal +
Input Signal -
Excitation +
Excitation -
Output +
Output -

PIN
1
3
4
5
7
8
9
10