3000MR-500PA | Dwyer Instruments | Pressure Components
Pressure Switch/Gage, Range 0-500 Pa
Brand:Dwyer Instruments
MPN:3000MR-500PA
SKU:3000MR-500PA
product specifications
Contact Rating
1 A
Contact Type
SPDT
Accuracy
2%
Approvals
CE
Connection
NPT
Dial Size
4.00 in Dial
Direction
Uni-Directional
Filling
Dry
Housing Material
Metallic
Measurement
Pascals
Media Compatibility
Liquid/Gas
Mount
Center Back
Override
Manual
Range
±500 Pa
Type
Adjustable
Power Required
Switch
Set Point Range
0 - 500 Pa
Connection Size
1/8 in
Supply Voltage (Nominal)
24 VDC
product series specifications
Supply Voltage: 24 VDC ±10%
Relay Type: (2) DPDT w/independent setpoints
Left needle SPDT: (C, NO, NC) Closes on pressure rise
Right needle SPDT: (C, NO, NC) Closes on pressure rise
Relay Rating: 1A @ 30 VDC, 0.3A @ 120 VAC, Gold plated
Setpoint (SP): Twin Knob adjustments with needle SP indicators
Dial Pressure Gauge: 4" half dial with graduations per order
Calibration: Zero adjust screw
Differential: 1% of full scale (approx. 1 pointer width)
Repeatability: ±1% of full scale
Accuracy: (Standard) ±2% of full scale @ 70°F (21°C), (-0) ±3% of full scale @ 70°F (21°C), (-00) ±4% of full scale @ 70°F (21°C)
Reset Automatic: Reset by differential
Visual Indication: Pressure dial and SP needle indication
Sensor Type: Silicone Diaphragm MNT vertically
Operating Pressure Range: Range dependent on unit ordered
Overpressure: (Burst/Proof) -20" Hg. to 25 psig (-2.29 to 1.72 kPa)
Operating Temperature: 20° to 120°F (-7° to 49°C)
Operating Humidity: Not specified
Wetted Parts: Silicone, aluminum, plastics, steel, paint and more
Media Compatibility: Inert dry air
Process Connection: Two (Hi & LO), 1/8" FNPT
Wiring Terminations: 18", 8 conductor Pig-tail @ 22 AWG
Mounting: Vertically, with 4 screws
Enclosure Rating: ABS and clear plastic face, NEMA 1, NEMA 4 with panel gasket
Dimensions: 5.0"W x 5.0"H x 2.5"D (12.7 x 12.7 x 6.35 cm)
Cutout Size: 4.75" (12.06 cm) diameter
Weight: 4.0 lb (1.81 Kg)
Approvals: CE
Warranty: 1 year
product series features
- Two independent DPDT switches, externally adjustable
- Dependable Magnehelic® pressure indication
- 2% F.S. accuracy
- Visible switch set points and pressure indication
- Easily accessible zero adjustment
- 4 in (10.2 cm) easy-to-read white dial
- Optional manual reset
- Optional remote mounting of switch assembly
- UL listed, CSA and CE certified
more information & related documents
Series Description
The Dwyer 3000MR Series Photohelic® differential pressure switch/gauge combines two versatile, precise pressure switches with a time-proven Magnehelic® pressure gauge. The gauge reading is unaffected by switch operation. External knobs are used to adjust the two DPDT switch set points. Switch set points (indicated by red pointers) and system pressure are fully visible at all times. Ranges are available from 0in to 0.25in W.C. up to 10'' W.C. full scale. The 3000MR Series may be ordered with the switch assembly remote mounted to facilitate panel mounting.
Kele Description
DIFF PRESS SW, ADJUST, 0-500 PA
Manufacturer
Dwyer Instruments
Related Documents
3000MR Installation and Operation Instructions 
