0 Item(s)

Dwyer Instruments 3000SGT-500PA

Photohelic Press. Switch/Gauge w/Integral Transmitter,0-500 Pa

The Series 3000SGT Photohelic Switch/Gage/Transmitter combines several critical control functions into a single, easy-to-install package. This versatile instrument starts with the universally accepted standard for reliable low air pressure measurement, the Dwyer Magnehelic Gage. It measures positive, negative or differential pressures within +/- 2% of full scale accuracy. This time-proven component provides highly reliable analog indication of air or compatible gas pressure on a 4", 80 degree scale. Gage operation is completely independent — functions normally even if power is interrupted to electrical elements of the control. Next, two DPDT relays are added which serve as Low/High limit controls (or pressure switches) capable of handling up to 10 amps at 28 VDC or 120/240 VAC directly. Individual set point deadband is one pointer width — less than 1% of full scale; just enough to assure positive, chatter-free operation. Integral holding coils enable user to connect the two so they work like a single control with variable deadband — ideal for applications such as clean room and building pressurization, HVAC systems, automatic air filter or level control and much more. Actuation points are fully adjustable over the entire pressure range with convenient front mounted knobs linked to bright red set point indicators. Finally, the Series 3000SGT Photohelic Switch/Gage includes a separate 4-20 mA, 2-wire transmitter operating from an external 10-35 VDC power supply. Separate adjustments are included for zero and span inside the rear electronics enclosure. Optional A-700 Power Supply is a perfect companion rated for AC inputs from 100-240V; DC outputs from 24-28V. The transmitter component is an ideal driver for variable speed blowers and fans, damper positioners and for continuous data logging on computerized VAV systems or strip chart recorders. Besides the obvious cost and space saving advantages of combining all these control functions in a single unit, think of the additional savings in time and material with just one set of pneumatic lines to connect instead of three or four.

Order #: 3000SGT-500PA

Mfg Part #: 3000SGT-500PA

$712.00 USD

$690.64 USD


This product is currently not available.

Request a Calibration Quote

Transcat can calibrate your existing instruments.

Request a Calibration Quote

Rent From Transcat

Do you need a test instrument for a short time?

Request a Rental Quote

click on image to view gallery image(s)

View All Dwyer Instruments Products Discontinued Product

Compare Products in this Series

Dwyer Instruments 3000SGT-1.5KPA Dwyer Instruments 3000SGT-1.5KPA

Photohelic Press. Switch/Gauge w/Integral Transmitter,0-1.5kPa

Order #: 3000SGT-1.5KPA

$712.00 USD

$690.64 USD

Dwyer Instruments 3000SGT-250PA Dwyer Instruments 3000SGT-250PA

Photohelic Press. Switch/Gauge w/Integral Transmitter,0-250 Pa

Order #: 3000SGT-250PA

$712.00 USD

$690.64 USD

Dwyer Instruments 3000SGT-0 Dwyer Instruments 3000SGT-0

Photohelic Press. Switch/Gauge w/Integral Transmitter,0-.5"H2O

Order #: 3000SGT-0

Ships in 1-2 weeks

$748.00 USD

$725.56 USD

Add Items to Cart

Overview :

Product Highlights

  • Pressure switch/gage with integral transmitter
  • Range 0-500 Pa
  • Maximum pressure 5 psi (34.5 bar)
  • +/- 0.5% elect. accuracy
  • +/- 2% mech. accuracy