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DOD Information
 

 Model 89 QPL Differential Pressure Transducer

  Description

The Model 89 Differential Pressure
Transducer has been specially designed to meet the needs of military and/or marine applications and conforms to military specification MIL-D-24304B(SH).

The Model 89 accurately measures
differential pressures and transmits a
fully adjustable 4 to 20 mA output signal for remote display, recording, or control.

The Model 89 is available in differential pressure ranges from 300 inch wtr to 400 psi.

Dimensions
Image1
Mil-spec part number details
Image1
Specifications
FUNCTIONAL: in accordance with MIL-D-24304B

APPLICATIONS: steam, oil, sea water, flue gas, ammonia, oxygen, other gases, fresh water, condensate.

OUTPUT: 4-20 mADC

POWER SUPPLY: 28 VDC with reverse polarity protection.

LOOP RESISTANCE: 0 to 250 ohms

ZERO/SPAN ADJUSTMENTS: 8% 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

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-D-24304B

Features
  • QPL approved to
    MIL-D-24304B
  • Non-interacting zero and
    span adjustments for quick
    calibration
  • Mounting interchangeable with existing instrument mounts 
  • Pressure connections
    conform to MS16142

DIRECT REPLACEABILITY:
The Model 89 transducer is directly interchangeable with existing pressure transducers designed to MIL-D-24304B.

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.

 

2014 MMC Metrology Lab, Inc.