Dwyer 3000MRS Photohelic Switch/Gauge 0 to 250 Pa

Dwyer 3000MRS Photohelic Switch/Gauge 0 to 250 Pa

Product Details:

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Product Description

Dwyer 3000MRS Photohelic Switch/Gauge 0 to 250 Pa

Series 3000MR/3000MRS Photohelic Switch/Gage

Combines Differential Pressure Gage with Low/High Set-Points,Compact Size

 

 ModelDescription 
 3000MRS-250 PaPressure Switch/Gage,Range 0-250 Pa, 5.0 minor divisions.
 

 

Includes

  • mounting ring, snap ring
  • 18" cable assembly
  • (2) 3/16" tubing to 1/8" NPT adapters
  • (2) 1/8" NPT pipe plugs
  • (4) 6-32 x 1-1/4" RH machine screws (panel mounting)
  • (3) 6-32 x 5/16" RH machine screws (surface mounting)

he Series 3000MR Photohelic Switch/Gage combine the functions of a precise, highly repeatable differential pressure switch with a large easy-to-read analog pressure gage employing the durable, time-proven Magnehelic gage design. Switch setting is easy to adjust with large external knobs on the gage face. Gage reading is unaffected by switch operation - will indicate accurately even if power is interrupted. Solid state design now results in greatly reduced size and weight. Units can be flush mounted in 4-13/16" hole or surface mounted with hardware supplied. 3000MR models employ versatile electromechanical relays with gold over silver contacts - ideal for dry circuits.

Gage accuracy is 2% of full scale and switch repeatability is 1%. Switch deadband is one pointer width - less than 1% of full scale. Compatible with air and other non-combustible, non-corrosive gases, they can be used in systems with pressures to 25 psig.

Applications

  • Fan Control
  • Damper Control
  • Environmental Pollution Control

Approvals

  • CE Approval
  • GOST-R Certificate

Specification

Service Air and non-combustible, compatible gases 
Accuracy 2% of FS at 70F 
Pressure Limits -20" Hg to 25 psig 
Temperature Limits 20 to 120F 
Process Connections 1/8 female NPT (duplicated side and back) 
Size 4" dial face, 5" O.D. x 3-1/8" 
 Weight1.8 lb 
 Switch Specifications 
 Switch TypeEach setpoint has 1 Form C relay (SPDT) 
 Relay Contacts(resistive load) 1 Form C rated 1.0A @ 30 VDC, 0.3A @ 110 VDC or 0.5A @ 125 VAC. Gold over clad silver - suitable for dry circuits 
 Electrical Connections18" cable assembly with 8 conductors 
 Power Requirements24 VDC, regulated 10% 
 Mounting OrientationDiaphragm in vertical position 
Set Point Adjustment Adjustable knobs on face 
 Agency ApprovalsCE 

  

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