Pressure

A3000 Series



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A3000 Series

Photohelic® Pressure Switch/Gage A3000 Series

Photohelic® Pressure Switch/Gage

 

The Dwyer A3000 Series Photohelic® switches/gages function as versatile, highly repeatable pressure switches combined with a precise pressure gage employing the time-proven Magnehelic® gage design. The Photohelic® gage measures and controls positive, negative or differential pressures of air and compatible gases. Standard models are rated to 25 psig with options to 35 or 80 psig. Single pressure 36000S models measure to 6000 psig with a 9000 psig rating.


Products

(Wholesale customers, log in for your special pricing)

QtyModelDescriptionIn StockList PriceInternet Price
A3001 PHOTOHELIC 0-1INW.C.INFO850.00425.00
A3002 PHOTOHELIC 0-2IN W.C.INFO850.00425.00
A3003 PHOTOHELIC 0-3IN W.C.INFO850.00425.00
A3005 PHOTOHELIC 0-5ININFO850.00425.00
A3004 PHOTOHELIC 0-4.0IN W/CINFO850.00425.00
A3010 PHOTOHELIC 0-10IN W.C.INFO850.00425.00
A3000-00 PRESSURE SWITCHGAGE PHOTOHELICINFO890.00445.00
A3000-00N-RMR PHOTOHELIC PRESS SWITCH/GAGEINFO1,050.00525.00
A3000-0 0 TO 0.50 IN WC PHOTOHELICINFO850.00425.00
A3001-RMR-SRH PHOTOHELIC PRESSURE SWITCH/GAGINFO1,000.00500.00
A3003-RMR-SRH PHOTOHELIC PRESSURE SWITCH/GAGINFO1,000.00500.00
A3005-RMR 0 TO 5 IN WC PHOTOHELIC W/REMOTE RELAYIn Stock1,000.00500.00
A3006 PRESSURE SWITCHGAGE PHOTOHELICINFO850.00425.00
A3008 PRESSURE SWITCHGAGE PHOTOHELICINFO850.00425.00

Accessories

No accessories found
Features
  • Gage pointer and light shutter are mounted on helix and balancing counterweight
  • Light shield effectively protects phototransistors from strong outside light sources
  • Optical limit switches are used for reliability and long service life
  • Load relays a re DPDT with latching feature for maximum application versatility
Specifications

Gage Specifications:

Accuracy: ±2% of FS at 70℉ (21.1℃), ±3% on -0 and ±4% on -00 models

Service: Air and non-combustible, compatible gases

Pressure Limits:-20″ Hg to 25 psig (-67.7 to 172 kPa)

 :MP Option 35 psig (241 kPa)

 :HP Option 80 psig (551 kPa)

 :A36003S-36010S 150 psig (1034 kPa)

 :A36020S and higher 1.2 x full-scale pressure

Temperature Limits:20° to 120℉ (-6.67° to 48.9℃)

Process Connections:1/8″ female NPT

Size: 4″ (101.6 mm) dial face, 5″ (127 mm) OD x 8 1/4″ (209.55 mm)

Weight: 4 lb (1.81 Kg)

Switch Specifications:

Contact Type:Each setpoint has 2 Form C relays (DPDT)

Repeatability:± 1% of FS

Electrical Rating:10A @ 28 VDC, 10A @ 120, 240 VAC

Electrical Connections:Screw terminals. Use 167℉ (75℃) copper conductors only

Power Requirements:120 VAC, 50/60 Hz; 240 VAC & 24 VAC power optional

Mounting Orientation:Diaphragm in vertical position.

Set Point Adjustment:Adjustable knobs on face

Approvals: CE, CSA, UL File #E38121

Warranty: 1 year

Certifications