DWYER INSTRUMENTS DPG-200 Digital Pressure Gage, 1/4 Inch MNPT

Digital Vacuum Gauge with Transmitter, Nominal Dial Size 3 in, Wetted Materials 316L Stainless Steel, Accuracy +/-0.25 Percent of Full Scale, Minimum Pressure -14.7 psi, Maximum Pressure 0 psi, Display Units bar, cm wc, ft wc, in Hg, in wc, kg/cm2, kPa, mbar, mm Hg, oz/in?, psig, Output 4 to 20mA DC, Series DPG-200, Gauge Primary Range Units psi, Gauge Process Connection Gender Male, IP Rating IP66, NEMA Rating NEMA 4X, Gauge Process Connection Location Bottom

Working Mechanism:

• It makes use of a sensor that can translate the pressure exerted on it into electrical impulses.
• Then, these electrical impulses are sent to controllers or PLCs for processing and recording.
• Strain gauges are used by pressure transducers to gauge the force applied to them.
• In contrast to other pressure categories, vacuum pressure is measured via transducers.
• With pressure, it becomes convex as opposed to concave (i.e. it bubbles out), allowing to monitor negative pressure.

Features:

• Dwyer Instruments DPG-200 vacuum transducer has a backlit, 4-digit display which offers clear parallax-free reading and decreases the potential for errors.
• It is provided with a heavy-duty, aluminium case to meet NEMA 4X (IP66) requirements for use in rough or outdoor environments.
• The unit is powered by 12 to 24 VDC/VAC and contains two alarm set points.
• It has a four-button keypad to allow easy access to features. These features include backlight, peak & valley, auto zero and conversion of the pressure units.
• This model features an anodized aluminium extruded enclosure with recessed grooves, black polycarbonate front & back cover, Buna-N O-rings, polycarbonate overlay and 316L stainless steel sensor construction for prolonged use.

Standards and Approvals:

• NEMA

Frequently Asked Questions:

Q. How many PSI is full vacuum?

A. 14.7 psi.

Q. How is the vacuum different from pressure?

A. It is only a pressure that is a magnitude lower than the atmospheric pressure in the area. A vacuum can be any pressure between 0 psi and 14.7 psi.

Q. How do you increase the vacuum pressure?

A.

• There are two ways to change the pressure in a vacuum system.
• First, by varying the pumping speed (changing the pump's speed or throttling by closing a valve).
• Second, by allowing gas to enter the system (opening a valve).