Dwyer A3000 Photohelic Pressure Switch/Gauge, 0 to 1 inWC, low temperature -20°F
SKU: A3001-LT
Availability: 4 to 5 Weeks Dwyer A3001-LT Offers Work with this pressure switch/gauge that offers continuous gauge readings that remain unaffected by switch operations or during the loss of electricity. In addition, this switch/gauge is suitable for applications such as air conditioning and fume exhaust systems, and clean rooms. Features 3-in-1 instrument allows the reduction of several instruments with one product, saving inventory, installat
Availability: 4 to 5 Weeks
Dwyer A3001-LT Offers
Work with this pressure switch/gauge that offers continuous gauge readings that remain unaffected by switch operations or during the loss of electricity. In addition, this switch/gauge is suitable for applications such as air conditioning and fume exhaust systems, and clean rooms.
Features
- 3-in-1 instrument allows the reduction of several instruments with one product, saving inventory, installation time and money
- Patented design and 1% full-scale dead band provides quick response to pressure changes means no delay in switching and chatter-free operation
- Semi-Flexible drive shaft connects to set point knobs
- Plastic enclosure protects electronic components and electrical connections
- Polycarbonate connection or terminal board is self-extinguishing
- Glass-epoxy printed circuit boards for durability and performance
- Load relays are DPDT with latching feature for maximum application versatility
- Electronics: Designed to operate on 50/60 Hz, 120 volt current with 10% over or under voltage
- Switch set pointers show switch settings at all times
- Spring loaded friction clutch prevents operator damage of set point mechanism
- Zero adjustment screw connects to screw in cover to adjust zero pressure reading
Bezel and front cover
With set point knobs and zero adjustment screw removed to expose Photohelic® gage set point mechanism. Cover is clear polycarbonate plastic.
Gauge pointer and light shutter
Are mounted on helix and balancing counterweight. Shutter passes through slot in optical limit switch to expose phototransistors to integral infrared light source or mask them depending on applied pressure.
Light Shield
Effectively protects phototransistors from strong outside light sources yet allows free pointer movement. It also gives interior a clean "finished" look.
Optical limit switches
Are used for reliability and long service life. Attached directly to set pointers, they are individually aligned to assure precise switching accuracy.
Applications
- Air conditioning systems
- Fume exhaust systems
- Clean rooms
Dwyer A3001-LT Specifications
Specifications
| Type | Each set point has 2 form C relays (DPDT) |
| Repeatability | ±1% of FS |
| Electrical | Rating: 10 A at 28 V DC, 10 A at 120, 240 V ACConnections: Screw terminals use 167°F (75°C) copper conductors only |
| Power Requirements | 120 V AC, 50/60 Hz; 240 V AC and 24 V AC power optional |
| Mounting Orientation | Diaphragm in vertical position |
| Set Point Adjustment | Adjustable knobs on face |
| Agency Approvals | CE, CSA, UL |
| Service | Air and non-combustible, compatible gases |
| Accuracy | ±2% of FS at 70°F (21.1°C) |
| Pressure Limits | -20" Hg to 25 psig (-0.677 to 1.72 bar) |
| Temperature Limits | -20°F to 120°F (-28.9 to 48.9°C) |
| Process Connections | ⅛" female NPT |
| Size | 4" (101.6 mm) dial face, 5" (127 mm) OD x 8-¼" (209.55 mm) |
| Weight | 4 lbs (1.81 kg) |
What's included with the Dwyer A3001-LT
- Dwyer A3000 Photohelic Pressure Switch/Gauge, 0 to 1 inWC, low temperature -20°F
Dwyer A3000 Photohelic Pressure Switch/Gauge, 0 to 1 inWC, low temperature -20°F. Great savings PLUS Free Shipping when you buy now from EquipTestPro.com.
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