Series 3000MR/3000MRS Photohelic® Switch/Gauge

Brand: Dwyer Instruments, LLC

Using solid state technology, the Series 3000MR/3000MRS Photohelic® Switch/Gauges combine the functions of a precise, highly repeatable differential pressure switch with a large easy-to-read analog pressure gauge employing the durable, time-proven Magnehelic® gauge design.

Switch setting is easy to adjust with large external knobs on the gauge face. Gauge 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).
Features
  • Gauge reading unaffected by switch operation and will continue to read pressure even during power loss
  • Zero and range adjustments outside of gauge means no disassembly in normal service
  • Solid-state design allows for switching in high cycle rate applications without degradation

2,400 models matching criteria
  • Pressure Type - Inches WC
  • Pressure Range - Inches WC: 0 to 5
  • Switch Type - Solid State Relay
  • Adjustment Type - Tamper Proof Knobs
  • Temperature Options - Standard 140° F (60° C)
  • Pressure Application - Medium Pressure
  • Housing - General-Purpose
  • Certificates - NIST Traceable Calibration Certificate
100+ In Stock
$282.00CAD
$10.00 Shipping
  • Pressure Type - Millimeters WC
  • Pressure Range - Millimeters WC: 0 to 50
  • Switch Type - Electromechanical Relay
  • Adjustment Type - Adjustable Knobs on Face
  • Temperature Options - Standard 140° F (60° C)
  • Pressure Application - Medium Pressure
  • Housing - Weatherproof
  • Certificates - NIST Traceable Calibration Certificate
100+ In Stock
$318.00CAD
$10.00 Shipping
  • Pressure Type - Pa
  • Pressure Range - Pa: 0 to 125
  • Switch Type - Electromechanical Relay
  • Adjustment Type - Tamper Proof Knobs
  • Temperature Options - Standard 140° F (60° C)
  • Pressure Application - Medium Pressure
  • Housing - Weatherproof
  • Certificates - NIST Traceable Calibration Certificate
100+ In Stock
$515.00CAD
$10.00 Shipping
  • Pressure Type - Millimeters WC
  • Pressure Range - Millimeters WC: 0 to 6
  • Switch Type - Electromechanical Relay
  • Adjustment Type - Adjustable Knobs on Face
  • Temperature Options - Standard 140° F (60° C)
  • Pressure Application - Standard
  • Housing - General-Purpose
  • Certificates - No Additional Certifications
100+ In Stock
$548.00CAD
$10.00 Shipping
  • Pressure Type - Millimeters WC
  • Pressure Range - Millimeters WC: 0 to 10
  • Switch Type - Solid State Relay
  • Adjustment Type - Tamper Proof Knobs
  • Temperature Options - Standard 140° F (60° C)
  • Pressure Application - Medium Pressure
  • Housing - Weatherproof
  • Certificates - No Additional Certifications
100+ In Stock
$585.00CAD
$10.00 Shipping
  • Pressure Type - kPa
  • Pressure Range - kPa: 0 to 1
  • Switch Type - Electromechanical Relay
  • Adjustment Type - Adjustable Knobs on Face
  • Temperature Options - Low Temperature
  • Pressure Application - High Pressure
  • Housing - General-Purpose
  • Certificates - No Additional Certifications
100+ In Stock
$741.00CAD
$10.00 Shipping
  • Pressure Type - Pa
  • Pressure Range - Pa: 0 to 125
  • Switch Type - Electromechanical Relay
  • Adjustment Type - Adjustable Knobs on Face
  • Temperature Options - Standard 140° F (60° C)
  • Pressure Application - High Pressure
  • Housing - Weatherproof
  • Certificates - NIST Traceable Calibration Certificate
100+ In Stock
$751.00CAD
$10.00 Shipping
  • Pressure Type - Inches WC
  • Pressure Range - Inches WC: 0 to 50
  • Switch Type - Electromechanical Relay
  • Adjustment Type - Adjustable Knobs on Face
  • Temperature Options - Standard 140° F (60° C)
  • Pressure Application - Standard
  • Housing - Weatherproof
  • Certificates - No Additional Certifications
100+ In Stock
$841.00CAD
$10.00 Shipping
  • Pressure Type - Inches WC
  • Pressure Range - Inches WC: 0 to 100
  • Switch Type - Solid State Relay
  • Adjustment Type - Adjustable Knobs on Face
  • Temperature Options - Low Temperature
  • Pressure Application - Standard
  • Housing - Weatherproof
  • Certificates - No Additional Certifications
100+ In Stock
$952.00CAD
$10.00 Shipping
  • Pressure Type - Inches WC
  • Pressure Range - Inches WC: 0 to 3
  • Switch Type - Electromechanical Relay
  • Adjustment Type - Adjustable Knobs on Face
  • Temperature Options - Low Temperature
  • Pressure Application - High Pressure
  • Housing - Weatherproof
  • Certificates - No Additional Certifications
100+ In Stock
$1,216.00CAD
$10.00 Shipping
  • Pressure Type - Millimeters WC
  • Pressure Range - Millimeters WC: 0 to 6
  • Switch Type - Solid State Relay
  • Adjustment Type - Tamper Proof Knobs
  • Temperature Options - Standard 140° F (60° C)
  • Pressure Application - High Pressure
  • Housing - Weatherproof
  • Certificates - No Additional Certifications
100+ In Stock
$1,729.00CAD
$10.00 Shipping
  • Pressure Type - Inches WC
  • Pressure Range - Inches WC: 0 to 5
  • Switch Type - Solid State Relay
  • Adjustment Type - Tamper Proof Knobs
  • Temperature Options - Standard 140° F (60° C)
  • Pressure Application - Medium Pressure
  • Housing - Weatherproof
  • Certificates - NIST Traceable Calibration Certificate
100+ In Stock
$1,760.00CAD
$10.00 Shipping
  • Pressure Type - Inches WC
  • Pressure Range - Inches WC: 0 to 10
  • Switch Type - Electromechanical Relay
  • Adjustment Type - Tamper Proof Knobs
  • Temperature Options - Standard 140° F (60° C)
  • Pressure Application - High Pressure
  • Housing - General-Purpose
  • Certificates - No Additional Certifications
100+ In Stock
$1,852.00CAD
$10.00 Shipping
  • Pressure Type - Inches WC
  • Pressure Range - Inches WC: 0 to 3
  • Switch Type - Solid State Relay
  • Adjustment Type - Adjustable Knobs on Face
  • Temperature Options - Low Temperature
  • Pressure Application - Medium Pressure
  • Housing - Weatherproof
  • Certificates - No Additional Certifications
100+ In Stock
$2,136.00CAD
$10.00 Shipping
  • Pressure Type - kPa
  • Pressure Range - kPa: 0 to 1
  • Switch Type - Electromechanical Relay
  • Adjustment Type - Adjustable Knobs on Face
  • Temperature Options - Low Temperature
  • Pressure Application - Medium Pressure
  • Housing - Weatherproof
  • Certificates - NIST Traceable Calibration Certificate
100+ In Stock
$2,221.00CAD
$10.00 Shipping
  • Pressure Type - Millimeters WC
  • Pressure Range - Millimeters WC: 0 to 10
  • Switch Type - Electromechanical Relay
  • Adjustment Type - Adjustable Knobs on Face
  • Temperature Options - Standard 140° F (60° C)
  • Pressure Application - High Pressure
  • Housing - Weatherproof
  • Certificates - NIST Traceable Calibration Certificate
100+ In Stock
$2,257.00CAD
$10.00 Shipping
  • Pressure Type - Inches WC
  • Pressure Range - Inches WC: 0 to 50
  • Switch Type - Electromechanical Relay
  • Adjustment Type - Adjustable Knobs on Face
  • Temperature Options - Standard 140° F (60° C)
  • Pressure Application - Medium Pressure
  • Housing - General-Purpose
  • Certificates - NIST Traceable Calibration Certificate
100+ In Stock
$2,295.00CAD
$10.00 Shipping
  • Pressure Type - Inches WC
  • Pressure Range - Inches WC: 0 to 30
  • Switch Type - Solid State Relay
  • Adjustment Type - Adjustable Knobs on Face
  • Temperature Options - Standard 140° F (60° C)
  • Pressure Application - Medium Pressure
  • Housing - General-Purpose
  • Certificates - No Additional Certifications
100+ In Stock
$2,329.00CAD
$10.00 Shipping
  • Pressure Type - Millimeters WC
  • Pressure Range - Millimeters WC: 0 to 50
  • Switch Type - Solid State Relay
  • Adjustment Type - Tamper Proof Knobs
  • Temperature Options - Low Temperature
  • Pressure Application - High Pressure
  • Housing - General-Purpose
  • Certificates - NIST Traceable Calibration Certificate
100+ In Stock
$2,388.00CAD
$10.00 Shipping
  • Pressure Type - Pa
  • Pressure Range - Pa: 0 to 250
  • Switch Type - Solid State Relay
  • Adjustment Type - Tamper Proof Knobs
  • Temperature Options - Low Temperature
  • Pressure Application - Medium Pressure
  • Housing - Weatherproof
  • Certificates - No Additional Certifications
100+ In Stock
$2,448.00CAD
$10.00 Shipping
  • Pressure Type - Inches WC
  • Pressure Range - Inches WC: 0 to 0.25
  • Switch Type - Solid State Relay
  • Adjustment Type - Adjustable Knobs on Face
  • Temperature Options - Low Temperature
  • Pressure Application - Standard
  • Housing - General-Purpose
  • Certificates - NIST Traceable Calibration Certificate
100+ In Stock
$187.00CAD
$10.00 Shipping
  • Pressure Type - Inches WC
  • Pressure Range - Inches WC: 0 to 2
  • Switch Type - Electromechanical Relay
  • Adjustment Type - Adjustable Knobs on Face
  • Temperature Options - Standard 140° F (60° C)
  • Pressure Application - Medium Pressure
  • Housing - Weatherproof
  • Certificates - No Additional Certifications
100+ In Stock
$261.00CAD
$10.00 Shipping
  • Pressure Type - Inches WC
  • Pressure Range - Inches WC: 0 to 100
  • Switch Type - Electromechanical Relay
  • Adjustment Type - Tamper Proof Knobs
  • Temperature Options - Low Temperature
  • Pressure Application - Standard
  • Housing - General-Purpose
  • Certificates - NIST Traceable Calibration Certificate
100+ In Stock
$880.00CAD
$10.00 Shipping
  • Pressure Type - Millimeters WC
  • Pressure Range - Millimeters WC: 0 to 100
  • Switch Type - Solid State Relay
  • Adjustment Type - Tamper Proof Knobs
  • Temperature Options - Low Temperature
  • Pressure Application - High Pressure
  • Housing - General-Purpose
  • Certificates - NIST Traceable Calibration Certificate
100+ In Stock
$953.00CAD
$10.00 Shipping
  • Pressure Type - Inches WC
  • Pressure Range - Inches WC: 0 to 0.25
  • Switch Type - Electromechanical Relay
  • Adjustment Type - Tamper Proof Knobs
  • Temperature Options - Low Temperature
  • Pressure Application - Medium Pressure
  • Housing - Weatherproof
  • Certificates - NIST Traceable Calibration Certificate
100+ In Stock
$1,205.00CAD
$10.00 Shipping
  • Pressure Type - Inches WC
  • Pressure Range - Inches WC: 0 to 1
  • Switch Type - Electromechanical Relay
  • Adjustment Type - Adjustable Knobs on Face
  • Temperature Options - Standard 140° F (60° C)
  • Pressure Application - Medium Pressure
  • Housing - General-Purpose
  • Certificates - No Additional Certifications
100+ In Stock
$1,327.00CAD
$10.00 Shipping
  • Pressure Type - Pa
  • Pressure Range - Pa: 0 to 125
  • Switch Type - Electromechanical Relay
  • Adjustment Type - Adjustable Knobs on Face
  • Temperature Options - Low Temperature
  • Pressure Application - High Pressure
  • Housing - General-Purpose
  • Certificates - NIST Traceable Calibration Certificate
100+ In Stock
$1,343.00CAD
$10.00 Shipping
  • Pressure Type - Millimeters WC
  • Pressure Range - Millimeters WC: 0 to 10
  • Switch Type - Solid State Relay
  • Adjustment Type - Tamper Proof Knobs
  • Temperature Options - Standard 140° F (60° C)
  • Pressure Application - High Pressure
  • Housing - Weatherproof
  • Certificates - NIST Traceable Calibration Certificate
100+ In Stock
$1,432.00CAD
$10.00 Shipping
  • Pressure Type - Inches WC
  • Pressure Range - Inches WC: 0 to 5
  • Switch Type - Solid State Relay
  • Adjustment Type - Tamper Proof Knobs
  • Temperature Options - Low Temperature
  • Pressure Application - Standard
  • Housing - Weatherproof
  • Certificates - NIST Traceable Calibration Certificate
100+ In Stock
$1,475.00CAD
$10.00 Shipping
  • Pressure Type - Inches WC
  • Pressure Range - Inches WC: 0 to 5
  • Switch Type - Electromechanical Relay
  • Adjustment Type - Adjustable Knobs on Face
  • Temperature Options - Low Temperature
  • Pressure Application - Medium Pressure
  • Housing - General-Purpose
  • Certificates - No Additional Certifications
100+ In Stock
$1,573.00CAD
$10.00 Shipping
  • Pressure Type - Millimeters WC
  • Pressure Range - Millimeters WC: 0 to 50
  • Switch Type - Solid State Relay
  • Adjustment Type - Adjustable Knobs on Face
  • Temperature Options - Standard 140° F (60° C)
  • Pressure Application - High Pressure
  • Housing - Weatherproof
  • Certificates - No Additional Certifications
100+ In Stock
$1,656.00CAD
$10.00 Shipping
  • Pressure Type - Inches WC
  • Pressure Range - Inches WC: 0 to 20
  • Switch Type - Solid State Relay
  • Adjustment Type - Adjustable Knobs on Face
  • Temperature Options - Standard 140° F (60° C)
  • Pressure Application - Standard
  • Housing - Weatherproof
  • Certificates - NIST Traceable Calibration Certificate
100+ In Stock
$1,673.00CAD
$10.00 Shipping
  • Pressure Type - Inches WC
  • Pressure Range - Inches WC: 0 to 100
  • Switch Type - Solid State Relay
  • Adjustment Type - Tamper Proof Knobs
  • Temperature Options - Standard 140° F (60° C)
  • Pressure Application - High Pressure
  • Housing - Weatherproof
  • Certificates - No Additional Certifications
100+ In Stock
$1,717.00CAD
$10.00 Shipping
  • Pressure Type - Inches WC
  • Pressure Range - Inches WC: 0 to 50
  • Switch Type - Electromechanical Relay
  • Adjustment Type - Adjustable Knobs on Face
  • Temperature Options - Standard 140° F (60° C)
  • Pressure Application - Medium Pressure
  • Housing - Weatherproof
  • Certificates - No Additional Certifications
100+ In Stock
$1,793.00CAD
$10.00 Shipping
  • Pressure Type - Inches WC
  • Pressure Range - Inches WC: 0 to 10
  • Switch Type - Electromechanical Relay
  • Adjustment Type - Adjustable Knobs on Face
  • Temperature Options - Low Temperature
  • Pressure Application - High Pressure
  • Housing - General-Purpose
  • Certificates - NIST Traceable Calibration Certificate
100+ In Stock
$2,181.00CAD
$10.00 Shipping
  • Pressure Type - Millimeters WC
  • Pressure Range - Millimeters WC: 0 to 6
  • Switch Type - Solid State Relay
  • Adjustment Type - Adjustable Knobs on Face
  • Temperature Options - Low Temperature
  • Pressure Application - Standard
  • Housing - General-Purpose
  • Certificates - No Additional Certifications
100+ In Stock
$2,203.00CAD
$10.00 Shipping
  • Pressure Type - Millimeters WC
  • Pressure Range - Millimeters WC: 0 to 100
  • Switch Type - Solid State Relay
  • Adjustment Type - Adjustable Knobs on Face
  • Temperature Options - Low Temperature
  • Pressure Application - Standard
  • Housing - General-Purpose
  • Certificates - No Additional Certifications
100+ In Stock
$2,371.00CAD
$10.00 Shipping
  • Pressure Type - Millimeters WC
  • Pressure Range - Millimeters WC: 0 to 6
  • Switch Type - Electromechanical Relay
  • Adjustment Type - Adjustable Knobs on Face
  • Temperature Options - Low Temperature
  • Pressure Application - Medium Pressure
  • Housing - Weatherproof
  • Certificates - NIST Traceable Calibration Certificate
100+ In Stock
$2,521.00CAD
$10.00 Shipping
  • Pressure Type - Inches WC
  • Pressure Range - Inches WC: 0 to 20
  • Switch Type - Electromechanical Relay
  • Adjustment Type - Adjustable Knobs on Face
  • Temperature Options - Standard 140° F (60° C)
  • Pressure Application - Standard
  • Housing - Weatherproof
  • Certificates - NIST Traceable Calibration Certificate
100+ In Stock
$980.00CAD
$10.00 Shipping
  • Pressure Type - Inches WC
  • Pressure Range - Inches WC: 0 to 100
  • Switch Type - Solid State Relay
  • Adjustment Type - Adjustable Knobs on Face
  • Temperature Options - Standard 140° F (60° C)
  • Pressure Application - Standard
  • Housing - General-Purpose
  • Certificates - NIST Traceable Calibration Certificate
100+ In Stock
$1,587.00CAD
$10.00 Shipping

Specifications

Accessories

  • Mounting Bracket Flush Mount 3000MR/MRS Bracket

Accuracy

  • ± 2 % of Full Scale
  • 3000-0 ± 3 % of Full Scale
  • 3000-00 ± 4 % of Full Scale

Adjustment Type

  • Adjustable Knobs on Face

Approvals & Certifications

  • CE

Electrical Connectors

  • 18” Cable (46 cm) Assembly with 8-Conductors

Electrical Rating

  • 0.3 A at 110 Vdc or 0.5 A at 125 Vac
  • 1.0 A at 30 Vdc

Input

  • 0.01 mA (AC) Min.
  • 1.0 Amp (AC) - Max.

Media

  • Air
  • Non-Combustible, Compatible Gases

NACE & NIST

  • NIST

NPT Connection

  • 1/8” NPT Female

Power Requirement

  • 24 Vdc Regulated ± 10 %

Sensor Orientation

  • Diaphragm in Vertical Position

Set Point - Decreasing

  • cm WC: 0 to 20
  • Inches WC: 0 to 100
  • kPa: 0 to 4
  • mmWC: 0 to 100
  • Pa: 0 to 500

Set Point - Increasing

  • cm WC: 0 to 20
  • Inches WC: 0 to 100
  • kPa: 0 to 4
  • mmWC: 0 to 100
  • Pa: 0 to 500

Size

  • Dial: 4” (101.6 mm)
  • Gauge: 5” (127 mm) O.D. x 3-1/8” (79.38 mm)

Supply Voltage

  • 20 to 280 Vac (47-63 Hz)

Switch Type

  • Each Set Point Has 1 Form C Relays (SPDT)

System Pressure

  • bar: 5.5
  • kPa: 550
  • psig: 80 (For hp Version. 25 psig Otherwise.)

Temperature Range

  • -6.7° to 48.9° C (20° to 120° F)

  • Pneumatic Conveying
  • Air Conditioning Systems
  • Clean Rooms

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