Series 644 High Accuracy Pressure Transmitter

Brand: Dwyer Instruments, LLC

The Series 644 Industrial Pressure Transmitter is a robust transmitter designed for high accuracy pressure applications.

Boasting an accuracy of ±0.05% FS RSS (<±0.25% TEB), the 644 is intended for precise measurements in the critical applications of calibration technology, hydraulic/pneumatic controls, and many more laboratory and industrial settings. 

The Series 644 offers multiple measurement options with two output choices (VDC or mA) and ten psig pressure ranges (optional 0 to 15 psia).

The robust and compact all stainless steel Series 644 is available with either a 1/4" male NPT, or 7/16"-20 male SAE process connections. Each transmitter is provided with an 11 point NIST traceable calibration certificate.
Features
  • High accuracy provides exceptional measurement for insuring tight-control and minimizing costly out of specification conditions
  • NIST calibrated to provide traceability for regulated processes where production and documentation is monitored
  • Low thermal error over a wide range of temperatures helps to insure accurate pressure measurement and process operation

Models matching criteria: 96
  • Electrical Connection - 6-Pin Bayonet
  • Output - 4-20 mA
  • Pressure Range - psig: 0 to 300 (bar: 0 to 20.68, kPa: 0 to 2,068)
  • Process Connection - 7/16”-20 Male SAE
100+ In Stock
$1,844.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 36” Cable
  • Output - 0-10 Volt
  • Pressure Range - psig: 0 to 25 (bar: 0 to 1.72, kPa: 0 to 172.4)
  • Process Connection - 7/16”-20 Male SAE
100+ In Stock
$1,946.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 6-Pin Bayonet
  • Output - 4-20 mA
  • Pressure Range - psig: 0 to 500 (bar: 0 to 34.47, kPa: 0 to 3,447)
  • Process Connection - 7/16”-20 Male SAE
100+ In Stock
$147.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 36” Cable
  • Output - 0-10 Volt
  • Pressure Range - psig: 0 to 50 (bar: 0 to 34.5, kPa: 0 to 344.7)
  • Process Connection - 7/16”-20 Male SAE
100+ In Stock
$1,060.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 6-Pin Bayonet
  • Output - 0-10 Volt
  • Pressure Range - psia: 0 to 15 (bar: 0 to 1.03, kPa: 0 to 103)
  • Process Connection - 1/4” Male NPT
100+ In Stock
$259.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 6-Pin Bayonet
  • Output - 0-10 Volt
  • Pressure Range - psig: 0 to 200 (bar: 0 to 13.78, kPa: 0 to 1,378)
  • Process Connection - 7/16”-20 Male SAE
100+ In Stock
$424.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 6-Pin Bayonet
  • Output - 4-20 mA
  • Pressure Range - psia: 0 to 15 (bar: 0 to 1.03, kPa: 0 to 103)
  • Process Connection - 1/4” Male NPT
100+ In Stock
$1,937.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 36” Cable
  • Output - 4-20 mA
  • Pressure Range - psig: 0 to 300 (bar: 0 to 20.68, kPa: 0 to 2,068)
  • Process Connection - 1/4” Male NPT
100+ In Stock
$941.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 6-Pin Bayonet
  • Output - 0-10 Volt
  • Pressure Range - psig: 0 to 100 (bar: 0 to 6.89, kPa: 0 to 689)
  • Process Connection - 7/16”-20 Male SAE
100+ In Stock
$880.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 36” Cable
  • Output - 4-20 mA
  • Pressure Range - psig: 0 to 500 (bar: 0 to 34.47, kPa: 0 to 3,447)
  • Process Connection - 7/16”-20 Male SAE
100+ In Stock
$343.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 6-Pin Bayonet
  • Output - 4-20 mA
  • Pressure Range - psig: 0 to 150 (bar: 0 to 10, kPa: 0 to 1,000)
  • Process Connection - 1/4” Male NPT
100+ In Stock
$1,175.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 6-Pin Bayonet
  • Output - 4-20 mA
  • Pressure Range - psig: 0 to 100 (bar: 0 to 6.89, kPa: 0 to 689)
  • Process Connection - 7/16”-20 Male SAE
100+ In Stock
$1,887.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 36” Cable
  • Output - 0-10 Volt
  • Pressure Range - psig: -14.7 to 0 (bar: -1.01 to 0, kPa: -101.4 to 0)
  • Process Connection - 1/4” Male NPT
100+ In Stock
$392.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 6-Pin Bayonet
  • Output - 0-10 Volt
  • Pressure Range - psig: 0 to 25 (bar: 0 to 1.72, kPa: 0 to 172.4)
  • Process Connection - 7/16”-20 Male SAE
100+ In Stock
$2,237.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 6-Pin Bayonet
  • Output - 0-10 Volt
  • Pressure Range - psig: 0 to 300 (bar: 0 to 20.68, kPa: 0 to 2,068)
  • Process Connection - 1/4” Male NPT
100+ In Stock
$566.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 36” Cable
  • Output - 4-20 mA
  • Pressure Range - psig: -14.7 to 0 (bar: -1.01 to 0, kPa: -101.4 to 0)
  • Process Connection - 1/4” Male NPT
100+ In Stock
$142.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 6-Pin Bayonet
  • Output - 0-10 Volt
  • Pressure Range - psig: 0 to 200 (bar: 0 to 13.78, kPa: 0 to 1,378)
  • Process Connection - 1/4” Male NPT
100+ In Stock
$887.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 6-Pin Bayonet
  • Output - 0-10 Volt
  • Pressure Range - psig: -14.7 to 0 (bar: -1.01 to 0, kPa: -101.4 to 0)
  • Process Connection - 7/16”-20 Male SAE
100+ In Stock
$950.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 36” Cable
  • Output - 4-20 mA
  • Pressure Range - psig: 0 to 500 (bar: 0 to 34.47, kPa: 0 to 3,447)
  • Process Connection - 1/4” Male NPT
100+ In Stock
$917.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 36” Cable
  • Output - 4-20 mA
  • Pressure Range - psig: 0 to 100 (bar: 0 to 6.89, kPa: 0 to 689)
  • Process Connection - 1/4” Male NPT
100+ In Stock
$2,435.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 6-Pin Bayonet
  • Output - 0-10 Volt
  • Pressure Range - psig: 0 to 300 (bar: 0 to 20.68, kPa: 0 to 2,068)
  • Process Connection - 7/16”-20 Male SAE
100+ In Stock
$2,388.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 36” Cable
  • Output - 0-10 Volt
  • Pressure Range - psig: 0 to 750 (bar: 0 to 51.7, kPa: 0 to 5,171)
  • Process Connection - 1/4” Male NPT
100+ In Stock
$196.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 6-Pin Bayonet
  • Output - 4-20 mA
  • Pressure Range - psig: 0 to 500 (bar: 0 to 34.47, kPa: 0 to 3,447)
  • Process Connection - 1/4” Male NPT
50+ In Stock
$1,821.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 36” Cable
  • Output - 4-20 mA
  • Pressure Range - psig: 0 to 750 (bar: 0 to 51.7, kPa: 0 to 5,171)
  • Process Connection - 1/4” Male NPT
50+ In Stock
$1,301.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 36” Cable
  • Output - 0-10 Volt
  • Pressure Range - psig: 0 to 300 (bar: 0 to 20.68, kPa: 0 to 2,068)
  • Process Connection - 1/4” Male NPT
50+ In Stock
$2,348.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 6-Pin Bayonet
  • Output - 0-10 Volt
  • Pressure Range - psig: 0 to 15 (bar: 0 to 1.03, kPa: 0 to 103)
  • Process Connection - 1/4” Male NPT
50+ In Stock
$1,794.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 6-Pin Bayonet
  • Output - 4-20 mA
  • Pressure Range - psig: 0 to 1,000 (bar: 0 to 68.9, kPa: 0 to 6,894)
  • Process Connection - 7/16”-20 Male SAE
50+ In Stock
$232.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 36” Cable
  • Output - 4-20 mA
  • Pressure Range - psig: 0 to 25 (bar: 0 to 1.72, kPa: 0 to 172.4)
  • Process Connection - 7/16”-20 Male SAE
50+ In Stock
$1,902.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 36” Cable
  • Output - 4-20 mA
  • Pressure Range - psig: 0 to 200 (bar: 0 to 13.78, kPa: 0 to 1,378)
  • Process Connection - 7/16”-20 Male SAE
50+ In Stock
$1,576.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 6-Pin Bayonet
  • Output - 0-10 Volt
  • Pressure Range - psig: 0 to 100 (bar: 0 to 6.89, kPa: 0 to 689)
  • Process Connection - 1/4” Male NPT
50+ In Stock
$2,114.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 36” Cable
  • Output - 0-10 Volt
  • Pressure Range - psig: 0 to 150 (bar: 0 to 10, kPa: 0 to 1,000)
  • Process Connection - 1/4” Male NPT
50+ In Stock
$808.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 6-Pin Bayonet
  • Output - 0-10 Volt
  • Pressure Range - psig: -14.7 to 0 (bar: -1.01 to 0, kPa: -101.4 to 0)
  • Process Connection - 1/4” Male NPT
50+ In Stock
$2,201.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 6-Pin Bayonet
  • Output - 4-20 mA
  • Pressure Range - psig: 0 to 150 (bar: 0 to 10, kPa: 0 to 1,000)
  • Process Connection - 7/16”-20 Male SAE
50+ In Stock
$227.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 36” Cable
  • Output - 4-20 mA
  • Pressure Range - psig: -14.7 to 0 (bar: -1.01 to 0, kPa: -101.4 to 0)
  • Process Connection - 7/16”-20 Male SAE
50+ In Stock
$732.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 36” Cable
  • Output - 4-20 mA
  • Pressure Range - psig: 0 to 50 (bar: 0 to 34.5, kPa: 0 to 344.7)
  • Process Connection - 1/4” Male NPT
50+ In Stock
$1,364.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 36” Cable
  • Output - 0-10 Volt
  • Pressure Range - psig: 0 to 200 (bar: 0 to 13.78, kPa: 0 to 1,378)
  • Process Connection - 7/16”-20 Male SAE
50+ In Stock
$1,893.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 36” Cable
  • Output - 4-20 mA
  • Pressure Range - psig: 0 to 50 (bar: 0 to 34.5, kPa: 0 to 344.7)
  • Process Connection - 7/16”-20 Male SAE
50+ In Stock
$914.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 6-Pin Bayonet
  • Output - 0-10 Volt
  • Pressure Range - psig: 0 to 50 (bar: 0 to 34.5, kPa: 0 to 344.7)
  • Process Connection - 7/16”-20 Male SAE
50+ In Stock
$78.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 6-Pin Bayonet
  • Output - 4-20 mA
  • Pressure Range - psig: 0 to 750 (bar: 0 to 51.7, kPa: 0 to 5,171)
  • Process Connection - 1/4” Male NPT
50+ In Stock
$397.00 CAD
Does not ship to OH, United States
  • Electrical Connection - 6-Pin Bayonet
  • Output - 0-10 Volt
  • Pressure Range - psig: 0 to 15 (bar: 0 to 1.03, kPa: 0 to 103)
  • Process Connection - 7/16”-20 Male SAE
50+ In Stock
$1,106.00 CAD
Does not ship to OH, United States

Specifications

Accuracy

  • ± 0.05 % of Full Scale RSS
  • Total Error Band: < ± 0.25 % of Full Scale over Entire

Approvals & Certifications

  • CE

Compensated Temperature

  • -20° to 60° C (-4° to 140° F)

Consumption

  • 20 mA
  • 22 mA

Electrical Connectors

  • 3 feet Cable
  • 6-Pin Male Bayonet Connector

Environmental Protection

  • IP65
  • NEMA 4X

Loop Resistance

  • Minimum (Vdc) = 9 + 0.02 x Resistance of Receiver Plus Line

Media

  • Compatible Gases
  • Compatible Liquids

NPT Connection

  • 1/4” NPT Male

Output

  • 0-10 Vdc, 4-Wire
  • 4-20 mA, 2-Wire

Power Requirement

  • 9-30 Vdc for Current Output

Pressure Range

  • bar: -1 to 69
  • kPa: -100 to 6,900
  • psig: -14.7 to 1,000

Pressure Type

  • Gauge

Response Time

  • < 10 milliseconds (Voltage Output)
  • < 80 milliseconds (Current Output)

SAE Connection

  • 7/16”-20 SAE Male

Sensor Orientation

  • Vertical

Stability

  • < 0.15 % of Full Scale Per Year

Temperature Range

  • -40° to 85° C (-40° to 185° F)

Wetted Materials

  • 630 Stainless Steel

  • Calibration equipment
  • Test benches
  • Pulp and paper mills
  • Hydraulic/pneumatic controls
  • Transportation
  • Power generation
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