Dwyer A3000-20KPA Photohelic Pressure Switch Gauge Range

About Dwyer A3000-20KPA Photohelic Pressure Switch Gauge Range

Dwyer A3000-20KPA Photohelic Pressure Switch Gauge Range 0-20 kPa.

Dwyer A3000-20KPA Photohelic Pressure Switch/Gauge (0-20 kPa)

Model: A3000-20KPA

Bezel and front cover (with set point knobs and zero adjustment screw) removed to expose Photohelic® switch/gage set point mechanism. Gage pointer and light shutter are mounted on helix and balancing counterweight.

Dwyer A3000-20KPA 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 A3000-20KPA 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)