Listing ID #5409694
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Contact SupplierDwyer A3030 Photohelic Pressure Switch Gauge Range 0-30 Inch w.c.
Dwyer A3030 Photohelic Pressure Switch/Gauge (0-30"w.c.)
Model: A3030
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 A3030 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 A3030 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 167°F (75°C) 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 70°F (21.1°C),±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 120°F.(-6.67 to 48.9°C),-20 to 120°F (-28 to 48.9°C) with low temperature option
Process Connections:? female NPT
Dimensions:4" (101.6 mm) dial face,5 x 8¼"(127 x 209.55 mm)
Weight:4 lb (1.81 kg)