PR274/275 Series



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PR274/275 Series

Low Pressure Transmitters PR274/275 Series

Low Pressure Transmitters

 

The MAMAC Systems PR274/275 Series Low Pressure Transmitter incorporates a new micro-machined glass-on-silicon (Gl-Si) capacitance sensor. This technology revolutionizes very low pressure measurement. Temperature related zero drift, calibration shift due to overpressure, non-repeatability, non-linearity, and extremely low pressure sensitivity have been some of the problems which have plagued the controls industry. The PR274/275 Series with the new Gl-Si technology not only addresses all of the above shortcomings, but for the first time offers a reliable, accurate means to measure and control building/room pressure, air flow, duct pressure, filter pressure drop, or any other extremely low pressure application. Up to six field selectable direct or compound ranges, two enclosure types, field selectable outputs, fully temperature compensated NIST traceable accuracy, non-interacting zero and span adjustments, short circuit and reverse polarity protected output, and a liberal five year warranty are some of the features which make the PR274/275 Series the industry's highest performance, ultra-stable, low pressure sensor.


Products

(Wholesale customers, log in for your special pricing)

QtyModelDescriptionIn StockList PriceInternet Price
PR-274-R1-MA AIR DIFF PRESS XMTR,+/-1.00%, 0-0.10" WC,+/-0.05" WC, 4-20 MA, NO LCD, WALLIn Stock375.00210.00
PR-274-R1-VDC AIR DIFF PRESS XMTR,+/-1.00%, 0-0.10" WC,+/-0.05" WC, 0-5 VDC, 0-10 VDC, NO LCD, WALLINFO375.00210.00
PR-274-R2-MA AIR DIFF PRESS XMTR,+/-1.00%, 0-1.00" WC,+/-0.50" WC, 4-20 MA, NO LCD, WALLIn Stock296.49166.04
PR-274-R2-VDC AIR DIFF PRESS XMTR,+/-1.00%, 0-1.00" WC,+/-0.50" WC, 0-5 VDC, 0-10 VDC, NO LCD, WALLIn Stock296.49166.04
PR-274-R3-MA AIR DIFF PRESS XMTR,+/-1.00%, 0-5.00" WC,+/-2.50" WC, 4-20 MA, NO LCD, WALLINFO296.49166.04
PR-274-R3-VDC AIR DIFF PRESS XMTR,+/-1.00%, 0-5.00" WC,+/-2.50" WC, 0-5 VDC, 0-10 VDC, NO LCD, WALLIn Stock296.49166.04
PR-274-R4-MA AIR DIFF PRESS XMTR,+/-1.00%, 0-30.00" WC,+/-15.00" WC, 4-20 MA, NO LCD, WALLIn Stock296.49166.04
PR-274-R4-VDC AIR DIFF PRESS XMTR,+/-1.00%, 0-30.00" WC,+/-15.00" WC, 0-5 VDC, 0-10 VDC, NO LCD, WALLINFO296.49166.04
PR-274-R5-MA AIR DIFF PRESS XMTR,+/-1.00%, 0-25 PA,+/-12.5 PA, 4-20 MA, NO LCD, WALLINFO296.49166.04
PR-274-R5-VDC AIR DIFF PRESS XMTR,+/-1.00%, 0-25 PA,+/-12.5 PA, 0-5 VDC, 0-10 VDC, NO LCD, WALLIn Stock296.49166.04
PR-274-R6-MA AIR DIFF PRESS XMTR,+/-1.00%, 0-250 PA,+/-125 PA, 4-20 MA, NO LCD, WALLINFO296.49166.04
PR-274-R6-VDC AIR DIFF PRESS XMTR,+/-1.00%, 0-250 PA,+/-125 PA, 0-5 VDC, 0-10 VDC, NO LCD, WALLINFO296.49166.04
PR-274-R7-MA AIR DIFF PRESS XMTR,+/-1.00%, 0-1250 PA,+/-625 PA, 4-20 MA, NO LCD, WALLINFO296.49166.04
PR-274-R7-VDC AIR DIFF PRESS XMTR,+/-1.00%, 0-1250 PA,+/-625 PA, 0-5 VDC, 0-10 VDC, NO LCD, WALLINFO296.49166.04
PR-274-R8-MA AIR DIFF PRESS XMTR,+/-1.00%, 0-7500 PA,+/-3750 PA, 4-20 MA, NO LCD, WALLINFO296.49166.04
PR-274-R8-VDC AIR DIFF PRESS XMTR,+/-1.00%, 0-7500 PA,+/-3750 PA, 0-5 VDC, 0-10 VDC, NO LCD, WALLINFO296.49166.04
PR-275-R1-MA AIR DIFF PRESS XMTR,+/-1.00%, 0-0.10" WC,+/-0.05" WC, 4-20 MA, NO LCD, PANELINFO283.59158.81
PR-275-R1-VDC AIR DIFF PRESS XMTR,+/-1.00%, 0-0.10" WC,+/-0.05" WC, 0-5 VDC, 0-10 VDC, NO LCD, PANELINFO283.59158.81
PR-275-R2-MA AIR DIFF PRESS XMTR,+/-1.00%, 0-1.00" WC,+/-0.50" WC, 4-20 MA, NO LCD, PANELIn Stock283.59158.81
PR-275-R2-VDC AIR DIFF PRESS XMTR,+/-1.00%, 0-1.00" WC,+/-0.50" WC, 0-5 VDC, 0-10 VDC, NO LCD, PANELIn Stock283.59158.81
PR-275-R3-MA AIR DIFF PRESS XMTR,+/-1.00%, 0-5.00" WC,+/-2.50" WC, 4-20 MA, NO LCD, PANELINFO283.59158.81
PR-275-R3-VDC AIR DIFF PRESS XMTR,+/-1.00%, 0-5.00" WC,+/-2.50" WC, 0-5 VDC, 0-10 VDC, NO LCD, PANELIn Stock283.59158.81
PR-275-R4-MA AIR DIFF PRESS XMTR,+/-1.00%, 0-30.00" WC,+/-15.00" WC, 4-20 MA, NO LCD, PANELIn Stock283.59158.81
PR-275-R4-VDC AIR DIFF PRESS XMTR,+/-1.00%, 0-30.00" WC,+/-15.00" WC, 0-5 VDC, 0-10 VDC, NO LCD, PANELIn Stock283.59158.81
PR-275-R5-MA AIR DIFF PRESS XMTR,+/-1.00%, 0-25 PA,+/-12.5 PA, 4-20 MA, NO LCD, PANELINFO283.59158.81
PR-275-R5-VDC AIR DIFF PRESS XMTR,+/-1.00%, 0-25 PA,+/-12.5 PA, 0-5 VDC, 0-10 VDC, NO LCD, PANELINFO283.59158.81
PR-275-R6-MA AIR DIFF PRESS XMTR,+/-1.00%, 0-250 PA,+/-125 PA, 4-20 MA, NO LCD, PANELINFO283.59158.81
PR-275-R6-VDC AIR DIFF PRESS XMTR,+/-1.00%, 0-250 PA,+/-125 PA, 0-5 VDC, 0-10 VDC, NO LCD, PANELINFO283.59158.81
PR-275-R7-MA AIR DIFF PRESS XMTR,+/-1.00%, 0-1250 PA,+/-625 PA, 4-20 MA, NO LCD, PANELINFO283.59158.81
PR-275-R7-VDC AIR DIFF PRESS XMTR,+/-1.00%, 0-1250 PA,+/-625 PA, 0-5 VDC, 0-10 VDC, NO LCD, PANELINFO283.59158.81
PR-275-R8-MA AIR DIFF PRESS XMTR,+/-1.00%, 0-7500 PA,+/-3750 PA, 4-20 MA, NO LCD, PANELINFO283.59158.81
PR-275-R8-VDC AIR DIFF PRESS XMTR,+/-1.00%, 0-7500 PA,+/-3750 PA, 0-5 VDC, 0-10 VDC, NO LCD, PANELINFO283.59158.81

Accessories

No accessories found
Features
  • 100% solid state, micro-machined, glass-on-silicon, ultra-stable capacitance sensor
  • As low as ± 0.05" W.C. (± 12.5 pa)
  • Up to 6 field selectable ranges in one unit
  • Can resolve less than 0.00001″ W.C. (0.0025 pa)
  • Two rugged steel enclosure types NEMA-4 (IP-65) or panel mount for ease of installation
  • Short circuit and reverse polarity protected
  • Conforms to EMC and RoHS standards
Specifications

Supply Voltage:

Current Output:12 to 40 VDC @ 20 mA

Volts Output:12 to 35 VAC @ 0.35 VA, 12 to 40 VDC @ 10 mA

Accuracy:±1% Full Scale

Signal Output:0-5/10V @ 1KΩ, 4-20mA @ 600Ω (loop powered)

Sensor Type:Capacitive

Adjustments:Range select switch and Zero & Span POT

Normal Measurement Range:0 to 30″WC, Uni- or Bi- Directional

Overpressure:(Burst) ±10 psid (68.95 kPa)

Max Operating Pressure :(Proof) ±30″WC, (±7.47 kPa)

Operating Temperature :25° to 150℉ (-4 to 65℃)

Operating Humidity :10 to 90% Non-condensing

Wetted Parts:Silicone

Media Compatibility Inert :dry air

Process Connection:3/16″OD brass, for 1/4″ OD tubing

Wiring Plug-in terminals :2-(4-20mA), 3-(Volts)

Mounting:2 , #8 screws

Enclosure Rating :Painted Metal, NEMA 4, (IP66), or panel mount

Dimensions:6.0″W x 2.2″H x 4.0″D, (15.2 x 5.6 x 10.2 cm)

Weight:1.0 lb (0.45 Kg)

Approvals:CE, RoHS

Warranty :5 years

Certifications