Model 178 LCD Display Differential Pressure Transmitter

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Product Description

The Model 178 Series are low range differential pressure transmitters. Each unit features a push-activated ZERO function and an associated LCD display. With a convenient push button, the zero calibration can be performed without any additional equipment. It is with NEMA 4 (IP-65) rated aluminum enclosures, they are very rugged and very reliable.

The Model 178 Series are available for full scale pressure range from 0 to 0.1″WC till 0 to 100″WC. Both unidirectional and bidirectional pressure ranges are offered.The output of the Model 178 Pressure Transducer is available in two versions: 0 to 5VDC and 0 to 10VDC, where 0VDC is true zero without offset. The output of Model 178 Pressure Transmitters is 4 to 20 mA. All units are temperature compensated. The accuracy can be 0.6%, 0.4% or 0.25% at room temperature.

The patented variable capacitance pressure sensor is constructed by stainless steel and glass, no glue or other organics. That provides excellent performance, corrosion resistance and long-term stability.

Key Features:

  • 3-1/2 Digit LCD Display
  • Push Button Zero Calibration
  • Up to 15 PSI Proof Pressure on all Ranges
  • Miswiring Full Protection
  • Rugged Aluminum Housing Rated NEMA 4/IP65

Specification:

  • Accuracy: ±0.25%, ±0.40% or ±0.60% of span
  • Differential Pressure Ranges:
  • Unidirectional: 0.10 in.W.C. to 100.00 in.W.C.
  • Bidirectional: ±0.10 in.W.C. to ±50.00 in.W.C.
  • NEMA 4/IP65; Die-cast aluminum
  • Mounting: surface mount
  • Output signal: current or voltage

Process Applications:

  • HVAC and VAV Control
  • Clean Room and Isolation Rooms
  • Duct Static Pressure Measurement
  • Draft Control and Fume Hood Control
  • Furnace Air Flow Control
  • Power Plant Air Flow Monitor and Control

Product Details

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