DWYER – Series 3000MR/3000MRS Photohelic® Switch/Gage

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Description

Series 3000MR/3000MRS Photohelic® Switch/Gage

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

Using solid state technology, the Series 3000MR/3000MRS Photohelic® Switch/Gages 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 or surface mounted with hardware supplied. 3000MR models employ versatile electromechanical relays with gold over silver contacts – ideal for dry circuits. For applications requiring high cycle rates, choose 3000MRS models with SPST (N.O.) solid state relays. All models provide both low and high limit control and include 18-inch (45 cm) cable assemblies for electrical connections.

Compatible with air and other non-combustible, non-corrosive gases, they can be used in systems with pressures to 25 psig (1.725 bar). Optional construction is available for use to either 35 psig (2.42 bar) or 80 psig (5.51 bar).

Included Accessories: mounting ring, snap ring; 18″ (45 cm) 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); and (3) 6-32 x 5/16″ RH machine screws (surface mounting).

NIST CALIBRATION available in Product Configurator.

 

Product Applications

  • Pneumatic Conveying
  • Air Conditioning Systems
  • Clean Rooms

 

Specifications

  • GAGE SPECIFICATIONS
  • Service: Air and non-combustible, compatible gases.
  • Wetted Materials:Consult factory.
  • Accuracy:±2% of FS (3000-0 ±3% of FS). (3000-00 ±4% of FS).
  • Pressure Limit:-20″ Hg. to 25 psig (-0.677 bar to 1.72 bar). MP option: 35 psig (2.41 bar), HP option: 80 psig (5.52 bar).
  • Temperature Limits:20 to 120°F (-6.67 to 48.9°C).
  • Process Connections:1/8″ female NPT (duplicated side and back).
  • Size:4″ (101.6 mm) dial face, 5″ (127 mm) OD x 3-1/8″ (79.38 mm).
  • Weight:1.8 Ib (816 g).

 

  • SWITCH SPECIFICATIONS 3000MR
  • Switch Type:Each setpoint has 1 form C relays (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 Connections:18″ (46 cm) cable assembly with 8 conductors. Optional lengths to 100′ (30.5 m).
  • Power Requirements:24 VDC, regulated ±10%.
  • Mounting Orientation:Diaphragm in vertical position. Consult factory for other position orientations.
  • Set Point Adjustment:Adjustable knobs on face.
  • Agency Approvals:CE.

 

  • SWITCH SPECIFICATIONS 3000MRS
  • Switch Type:Each setpoint has a solid state relay.
  • Switching Voltage:20-280 VAC (47-63 Hz).
  • Switching Current:1.0 amp (AC) max., 0.01 mA (AC) min., (2) SPST NO.
  • Electrical Connections:18″ (46 cm) cable assembly with 6 conductors, optional lengths to 100′ (30.5 m).
  • Power Requirements:24 VDC, regulated ±10%. 24VAC optional.
  • Mounting Orientation:Diaphragm in vertical position. Consult factory for other position orientations.
  • Set Point Adjustment:Adjustable knobs on face.
  • Agency Approvals:CE.

 

Features

  • Gage reading unaffected by switch operation and will continue to read pressure even during power loss
  • Zero and range adjustments outside of gage means no disassembly in normal service
  • Solid-state design allows for switching in high cycle rate applications without degradation

 

Models & Ordering

 

Series 3000MR – Inches of w.c

Model Description
3000MR-0 Pressure switch/gage, range 0-0.5″ w.c., .01 minor divisions.
3001MR Pressure switch/gage, range 0-1″ w.c., .02 minor divisions.
3002MR Pressure switch/gage, range 0-2″ w.c., .05 minor divisions.
3003MR Pressure switch/gage, range 0-3″ w.c., .10 minor divisions.
3005MR Pressure switch/gage, range 0-5″ w.c., .10 minor divisions.
3010MR Pressure switch/gage, range 0-10″ w.c., .20 minor divisions.
3015MR Pressure switch/gage, range 0-15″ w.c., .50 minor divisions.
3020MR Pressure switch/gage, range 0-20″ w.c., .50 minor divisions.
3030MR Pressure switch/gage, range 0-30″ w.c., 1.0 minor divisions.
3050MR Pressure switch/gage, range 0-50″ w.c., 1.0 minor divisions.
3100MR Pressure switch/gage, range 0-100″ w.c., 2.0 minor divisions.

 

Series 3000MR – Pascals

Model Description
3000MR-125PA Pressure switch/gage, range 0-125 Pa, 5.0 minor divisions.
3000MR-250PA Pressure switch/gage, range 0-250 Pa, 5.0 minor divisions.
3000MR-500PA Pressure switch/gage, range 0-500 Pa, 10.0 minor divisions.
3000MR-60PA Pressure switch/gage, range 0-60 Pa, 2.0 minor divisions.

 

Series 3000MR – Kilopascals

Model Description
3000MR-1KPA Pressure switch/gage, range 0-1 kPa, .02 minor divisions.
3000MR-3KPA Pressure switch/gage, range 0-3 kPa, .10 minor divisions.
3000MR-4KPA Pressure switch/gage, range 0-4 kPa, .10 minor divisions.

 

Series 3000MR – MM of w.c.

Model Description
3000MR-100MM Pressure switch/gage, range 0-100 mm w.c., 2.0 minor divisions.
3000MR-10MM Pressure switch/gage, range 0-10 mm w.c., .50 minor divisions.
3000MR-25MM Pressure switch/gage, range 0-25 mm w.c., .50 minor divisions.
3000MR-50MM Pressure switch/gage, range 0-50 mm w.c., 1.0 minor divisions.
3000MR-6MM Pressure switch/gage, range 0-6 mm w.c., .20 minor divisions.

 

Series 3000MR – CM of w.c

Model Description
3000MR-20CM Pressure switch/gage, range 0-20 cm w.c., .50 minor divisions.

 

Series 3000MRS – Inches of w.c.

Model Description
3000MRS-0 Pressure switch/gage, range 0-0.5″ w.c., .01 minor divisions.
3001MRS Pressure switch/gage, range 0-1″ w.c., .02 minor divisions.
3002MRS Pressure switch/gage, range 0-2″ w.c., .05 minor divisions.
3003MRS Pressure switch/gage, range 0-3″ w.c., .10 minor divisions.
3005MRS Pressure switch/gage, range 0-5″ w.c., .10 minor divisions.
3010MRS Pressure switch/gage, range 0-10″ w.c., .20 minor divisions.
3015MRS Pressure switch/gage, range 0-15″ w.c., .50 minor divisions.
3020MRS Pressure switch/gage, range 0-20″ w.c., .50 minor divisions.
3030MRS Pressure switch/gage, range 0-30″ w.c., 1.0 minor divisions.
3050MRS Pressure switch/gage, range 0-50″ w.c., 1.0 minor divisions.
3100MRS Pressure switch/gage, range 0-100″ w.c., 2.0 minor divisions.

 

Series 3000MRS – Pascals

Model Description
3000MRS-125PA Pressure switch/gage, range 0-125 Pa, 5.0 minor divisions.
3000MRS-250PA Pressure switch/gage, range 0-250 Pa, 5.0 minor divisions.
3000MRS-500PA Pressure switch/gage, range 0-500 Pa, 10.0 minor divisions.
3000MRS-60PA Pressure switch/gage, range 0-60 Pa, 2.0 minor divisions.

 

Series 3000MRS – Kilopascals

Model Description
3000MRS-1KPA Pressure switch/gage, range 0-1 kPa, .02 minor divisions.
3000MRS-3KPA Pressure switch/gage, range 0-3 kPa, .10 minor divisions.
3000MRS-4KPA Pressure switch/gage, range 0-4 kPa, .10 minor divisions.

 

Series 3000MRS – MM of w.c.

Model Description
3000MRS-100MM Pressure switch/gage, range 0-100 mm w.c., 2.0 minor divisions.
3000MRS-10MM Pressure switch/gage, range 0-10 mm w.c., .50 minor divisions.
3000MRS-25MM Pressure switch/gage, range 0-25 mm w.c., .50 minor divisions.
3000MRS-50MM Pressure switch/gage, range 0-50 mm w.c., 1.0 minor divisions.
3000MRS-6MM Pressure switch/gage, range 0-6 mm w.c., .20 minor divisions.

 

Series 3000MRS – CM of w.c.

Model Description
3000MRS-20CM Pressure switch/gage, range 0-20 cm w.c., .50 minor divisions.

 

 

 

 

 

Additional information

Model

3000MR-0, 3001MR, 3002MR, 3003MR, 3005MR, 3010MR, 3015MR, 3020MR, 3030MR, 3050MR, 3100MR, 3000MR-125PA, 3000MR-250PA, 3000MR-500PA, 3000MR-60PA, 3000MR-1KPA, 3000MR-3KPA, 3000MR-4KPA, 3000MR-100MM, 3000MR-10MM, 3000MR-25MM, 3000MR-50MM, 3000MR-6MM, 3000MR-20CM, 3000MRS-0, 3001MRS, 3002MRS, 3003MRS, 3005MRS, 3010MRS, 3015MRS, 3020MRS, 3030MRS, 3050MRS, 3100MRS, 3000MRS-125PA, 3000MRS-250PA, 3000MRS-500PA, 3000MRS-60PA, 3000MRS-1KPA, 3000MRS-3KPA, 3000MRS-4KPA, 3000MRS-100MM, 3000MRS-10MM, 3000MRS-25MM, 3000MRS-50MM, 3000MRS-6MM, 3000MRS-20CM

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