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Dwyer A3300-250PA Photohelic Pressure Switch Gauge Dwyer A3300-250PA Photohelic Pressure Switch Gauge Dwyer A3300-250PA Photohelic Pressure Switch Gauge Dwyer A3300-250PA Photohelic Pressure Switch Gauge Dwyer A3300-250PA Photohelic Pressure Switch Gauge Dwyer A3300-250PA Photohelic Pressure Switch Gauge
Dwyer A3300-250PA Photohelic Pressure Switch Gauge
Dwyer A3300-250PA Photohelic Pressure Switch Gauge Dwyer A3300-250PA Photohelic Pressure Switch Gauge Dwyer A3300-250PA Photohelic Pressure Switch Gauge Dwyer A3300-250PA Photohelic Pressure Switch Gauge Dwyer A3300-250PA Photohelic Pressure Switch Gauge

Dwyer A3300-250PA Photohelic Pressure Switch Gauge

Product Details:

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Product Description

Dwyer A3300-250PA Photohelic Pressure Switch Gauge Range 125-0-125 Pa.

Dwyer A3300-250PA Photohelic Pressure Switch/Gauge (125-0-125 Pa.)

Model: A3300-250PA

Bezel and front cover (with set point knobs and zero adjustment screw) removed to expose Photohelic Switch/Gage set point

Mechanism. Cover is Clear Polycarbonate Plastic.Gage Pointer and Light Shutter Are Mounted on Helix and Balancing 

Counterweight.

Dwyer A3300-250PA Offers

Features

  • Measure 4 to 20 mA Signals Without "Breaking the Loop"
  • Measure mA Signals For PLC and Control System Analog I/O
  • Dual Backlit Display With Both mA Measurement And Percent of 4 to 20 mA Span
  • Measurement Spotlight illuminates hard to see wires in dark enclosures
  • Detachable clamp with extension cable for measurements in tight locations
  • Measure 10 to 50 mA signals in older control systems using the 99.9 mA range
  • Automatically change the 4 to 20 mA output for remote testing
  • Power saving features,auto-off, backlight timeout extend battery life
  • Hold function captures and displays changing measurements

Applications

  • Air Conditioner Systems
  • Clean Rooms
  • Fume Exhaust Systems
  • Dwyer A3300-250PA Specifications

Switch Specifications

  • Switch Type:Each Set Point Has 2 Form C Relays (DPDT)
  • Repeatability:1% of FS
  • Electrical Rating:10 A at 28 VDC,10 A at 120,240 VAC
  • Electrical Connections:Screw Terminals. Use 167F (75C) Copper Conductors Only
  • Power Requirements:120 VAC, 50/60 Hz,240 VAC and 24 VAC power optional
  • Mounting Orientation:Diaphragm in Vertical Position. Consult Factory For Other Position Orientations
  • Set Point Adjustment:Adjustable Knobs On Face
  • Agency Approvals:CE,CSA,UL

Gauge Specifications

  • Service:Air And Non Combustible,Compatible Gases
  • Accuracy:2% of FS at 70F (21.1C),3% on -0,4% on -00 models
  • Pressure Limits:-20" Hg to 25 psig(-0.677 to 1.72 bar),MP option; 35 psig (2.41 bar),HP option; 80 psig (5.52 bar)
  • Temperature Limits:20 to 120F.(-6.67 to 48.9C),-20 to 120F(-28 to 48.9C)with low temperature option
  • Process Connections:female NPT
  • Dimensions:4"(101.6 mm) Dial Face,5 x 8"(127 x 209.55 MM)
  • Weight:4 lb (1.81 kg)

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