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865 Series Differential Pressure Transducer

Brand: Gems Sensors, Inc

The 865 Series are very low-pressure transducers for ranges as low 0.25" WC and feature ±1% full scale static accuracy.

Primarily used in Building Energy Management, these transducers are capable of measuring pressures and flows with the accuracy necessary for proper building pressurization and air flow control. 

865 Series transducers utilize an all-stainless steel micro-tig welded sensor that allows up to 10 psi overpressure (in either direction) with no damage to the unit.

All sensor components have thermally matched coefficients, which promote improved temperature performance and excellent long-term stability.
Features
  • For Air or Non-Conductive Gas
  • 0.25 to 100 Inches in W.C.(differential)/±0.1 to ±50 Inches in W.C. (bidirectional)
  • High Proof Pressure

1 - 12 of 288 Part Numbers
8651-001WB-11-A1-C
8651-001WB-11-A1-C
  • Range - Bidirectional
  • Pressure Range - Inches WC: ± 1
  • Output - 4-20 mA (9-30 Vdc Excitation)
  • Electrical Connection - 7/8" Knock-Out Hole for 1/2" Conduit Enclosure
  • Accuracy - ± 1% of Full Scale
8651-001WB-11-A1-E
8651-001WB-11-A1-E
  • Range - Bidirectional
  • Pressure Range - Inches WC: ± 1
  • Output - 4-20 mA (9-30 Vdc Excitation)
  • Electrical Connection - 7/8" Knock-Out Hole for 1/2" Conduit Enclosure
  • Accuracy - ± 0.4% of Full Scale - Calibration Certificate Supplied
8651-001WB-11-A1-F
8651-001WB-11-A1-F
  • Range - Bidirectional
  • Pressure Range - Inches WC: ± 1
  • Output - 4-20 mA (9-30 Vdc Excitation)
  • Electrical Connection - 7/8" Knock-Out Hole for 1/2" Conduit Enclosure
  • Accuracy - ± 0.25% of Full Scale - Calibration Certificate Supplied
8651-001WB-11-A1-G
8651-001WB-11-A1-G
  • Range - Bidirectional
  • Pressure Range - Inches WC: ± 1
  • Output - 4-20 mA (9-30 Vdc Excitation)
  • Electrical Connection - 7/8" Knock-Out Hole for 1/2" Conduit Enclosure
  • Accuracy - ± 1% of Full Scale - Calibration Certificate Supplied
8651-001WB-11-T1-C
8651-001WB-11-T1-C
  • Range - Bidirectional
  • Pressure Range - Inches WC: ± 1
  • Output - 4-20 mA (9-30 Vdc Excitation)
  • Electrical Connection - Terminal Strip
  • Accuracy - ± 1% of Full Scale
8651-001WB-11-T1-E
8651-001WB-11-T1-E
  • Range - Bidirectional
  • Pressure Range - Inches WC: ± 1
  • Output - 4-20 mA (9-30 Vdc Excitation)
  • Electrical Connection - Terminal Strip
  • Accuracy - ± 0.4% of Full Scale - Calibration Certificate Supplied
8651-001WB-11-T1-F
8651-001WB-11-T1-F
  • Range - Bidirectional
  • Pressure Range - Inches WC: ± 1
  • Output - 4-20 mA (9-30 Vdc Excitation)
  • Electrical Connection - Terminal Strip
  • Accuracy - ± 0.25% of Full Scale - Calibration Certificate Supplied
8651-001WB-11-T1-G
8651-001WB-11-T1-G
  • Range - Bidirectional
  • Pressure Range - Inches WC: ± 1
  • Output - 4-20 mA (9-30 Vdc Excitation)
  • Electrical Connection - Terminal Strip
  • Accuracy - ± 1% of Full Scale - Calibration Certificate Supplied
8651-001WB-2B-A1-C
8651-001WB-2B-A1-C
  • Range - Bidirectional
  • Pressure Range - Inches WC: ± 1
  • Output - 0-5 Vdc (9-30 Vdc Excitation)
  • Electrical Connection - 7/8" Knock-Out Hole for 1/2" Conduit Enclosure
  • Accuracy - ± 1% of Full Scale
8651-001WB-2B-A1-E
8651-001WB-2B-A1-E
  • Range - Bidirectional
  • Pressure Range - Inches WC: ± 1
  • Output - 0-5 Vdc (9-30 Vdc Excitation)
  • Electrical Connection - 7/8" Knock-Out Hole for 1/2" Conduit Enclosure
  • Accuracy - ± 0.4% of Full Scale - Calibration Certificate Supplied
8651-001WB-2B-A1-F
8651-001WB-2B-A1-F
  • Range - Bidirectional
  • Pressure Range - Inches WC: ± 1
  • Output - 0-5 Vdc (9-30 Vdc Excitation)
  • Electrical Connection - 7/8" Knock-Out Hole for 1/2" Conduit Enclosure
  • Accuracy - ± 0.25% of Full Scale - Calibration Certificate Supplied
8651-001WB-2B-A1-G
8651-001WB-2B-A1-G
  • Range - Bidirectional
  • Pressure Range - Inches WC: ± 1
  • Output - 0-5 Vdc (9-30 Vdc Excitation)
  • Electrical Connection - 7/8" Knock-Out Hole for 1/2" Conduit Enclosure
  • Accuracy - ± 1% of Full Scale - Calibration Certificate Supplied
1 - 12 of 288 Part Numbers

Specifications

Accuracy

  • ± 0.25 % of Full Scale for Calibration Certificate Supplied
  • ± 0.4 % of Full Scale for Calibration Certificate Supplied
  • ± 1.0 % of Full Scale

Applications

  • Energy Management Systems
  • Environmental Control
  • HVac Systems
  • Oven Pressurization & Furnace Draft Controls
  • Static Duct & Clean Room Pressure
  • Variable Air Volume & Fan Control

Approvals & Certifications

  • CE

Compensated Temperature

  • -18° to 65° C (0° to 150° F)

Conduit Connection

  • 1/2” Conduit

Electrical Connectors

  • 7/8” Knock-Out Hole for 1/2˝ Conduit Enclosure
  • Screw Terminal Strip

Enclosure, Body Material

  • Fire Retardant Glass-Filled Polyester

Load Resistance

  • Minimum 5,000 kiloohms

Operating Temperature

  • -18° to 65° C (0° to 150° F)

Output

  • 0-5 Vdc
  • 4-20 mA, 2-Wire

Pressure Range

  • bar: -0.12 to 0.24
  • Inches WC: -50 to 100
  • kPa: -12.45 to 24.91
  • psi: -1.80 to 3.61

Proof Pressure

  • psi: 10 (kPa: 68.95, Mbar: 700)

Span & Zero Effect

  • ± 0.033 % of Full Scale/°F (± 0.06 % of Full Scale/°C)

Storage Temperature

  • -40° to 85° C (-40° to 185° F)

Supply Voltage

  • 9-30 Vdc

Tolerance

  • Zero & Span Tolerance: 0.5 % for High Accuracy
  • Zero & Span Tolerance: 1 %

Tube Connection

  • 1/4” Tube

Wetted Materials

  • Glass-Filled Polyester
  • Stainless Steel

  • HVAC
  • Energy Management Systems
  • Variable Air Volume and Fan Control (VAV)
  • Environmental Pollution Control
  • Static Duct and Clean Room Pressures
  • Oven Pressurization and Furnace Draft Controls

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