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.

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 0°C to 65°C (32°F to 149°F)

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

• 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.