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DOD Information
 

 Model 742D Differential Pressure Transducer

  Description

 

The 742D Differential Pressure Transducer has been specially designed to meet the needs of military and/or marine applications and conforms to military specification MIL-T-24742 (SH).

The 742D accurately measures differential pressures and transmits a fully adjustable 4 to 20 mA or 0-5 VDC output signal for remote display, recording, or control.

The 742D is available in differential
ranges from 10 inches of water to 600
psi.

DIRECT REPLACEABILITY:
The 742D transducer is directly interchangeable with existing pressure transducers designed to MIL-T-24742.

The mounting is designed to match the footprint of existing transducers for quick and easy installation.

MINIMAL MAINTENANCE:
Calibration is quick and easy with the non-interacting zero and span adjustments.

 

Dimensions
Image1
Mil-Spec part number details
Image1
General Specifications
FUNCTIONAL SPECIFICATIONS: in accordance with MIL-T-24742

APPLICATIONS: steam, sea water, flue gas, ammonia, oxygen, other gases, fresh water, condensate, nitrogen, inert gases and liquid hydrocarbons

OUTPUT: 4-20 mADC, 0-5 VDC

POWER SUPPLY: 28 VDC +/- 4.5 VDC with reverse polarity protection

LOOP RESISTANCE: 0 to 250 ohms

ZERO/SPAN ADJUSTMENTS: +/- 5% full scale output

TEMPERATURE LIMITS: Compensated: 0C to 65C (32F to 149F)

OVERPRESSURE: 200% of range or maximum rated line pressure (whichever is greater)

HUMIDITY: 0 to 100% RH

VOLUMETRIC DISPLACEMENT: less than 0.002 cc

WEIGHT: 18 oz. (0.51 kg)

 

Performance Specifications
ACCURACY: 1.0% of calibrated span including linearity, hysteresis, and temperature effects

REPEATABILITY: within 0.5% of span

SHOCK TEST: in accordance with Grade-A, Class I, Type C of MIL-S-901

EMI: in accordance with MIL-STD-462 per MIL-T-24742

 

Features
  • 742D approved to MIL-T-24742 (SH)
  • Non-interacting zero and span adjustments for quick calibration 
  • Pressure connections conform to MS16142
  • Light weight, only 18 oz.

 

2014 MMC Metrology Lab, Inc.