1、 Product Overview

The D2300 series micro differential pressure gauge is an elastic differential pressure instrument that uses advanced spiral magnetic coupling technology and rubber diaphragm as the sensitive element. When differential pressure (including positive pressure and negative pressure) acts on two pressure chambers isolated by a diaphragm, the diaphragm deforms and causes the central part to shift, driving the leaf spring equipped with magnetic steel to adjust the range to move. Through magnetic coupling, the spiral shaft rotates, and the pointer rotates with the shaft to indicate the pressure difference on the dial of the instrument, thus achieving the purpose of measuring differential pressure.

Due to the use of frictionless magnetic components in the core components of the instrument, it has the ability to resist vibration, shaking, and high overpressure, making it very suitable for measuring small pressures and differential pressures of air or non corrosive gases.

2、 Product Usage

Blood pressure and respiratory pressure monitoring in healthcare equipment, as well as positive pressure indication in cleanrooms for the semiconductor and biopharmaceutical industries. In the fields of hospital negative pressure isolation wards, ICU intensive care units, operating rooms, biosafety cabinets, negative pressure ambulances, and differential pressure monitoring of central air conditioning unit filters. The product is easy to use, maintain, and install.

3、 Product performance

The D2300 series pointer micro differential pressure gauge is an elastic pressure gauge that uses a simple, frictionless magnetic spiral motion and a rubber diaphragm as a sensitive element for measurement. It can quickly indicate the pressure of the measured gas using the pointer, whether it is positive pressure, negative pressure, or differential pressure. And there is no need to fill the table with liquid, so there are no problems such as gasification, freezing, or odor.

The gas being tested must be a non corrosive gas to avoid corroding sensitive components such as rubber membranes.

The tested gas should not contain dust, etc., to avoid blocking the pores and adhering to the internal components of the instrument.

Choose an environment without vibration, with an ambient temperature of -7~60 ℃, and avoid direct sunlight to prevent plastic panel aging.

4、 Technical parameters

● Medium: Air and non flammable, compatible gases

● Range: Minimum -30~+30Pa, with multiple range options available

Accuracy: The standard is ± 4% F.S

Pressure resistance range: -20Hg. to 15 PSI (-0.677 bar to 1.034 bar)

● Shell: Cast aluminum or ABS shell, organic glass sloping panel. Dark gray coating, capable of withstanding 168 hours of salt spray test

● Temperature range: -6.67 to 60 ° C (20 to 140 ° F)

● Hole size: 114mm

Installation direction: Vertical installation

● Connectors: Same 1/8 "NPT high and low pressure fittings, one pair on the side and one pair on the back

Weight: 500g per piece

Standard attachments: Two 1/8 "NPT threaded fittings, used as high and low pressure fittings and connected to rubber hoses;

Two 1/8 "NPT plugs, used to block the other two high and low pressure ports; Three threaded countersunk installation connectors.

Installation box: Stainless steel installation box is optional

5、 Product advantages
Multiple unique technological advantages make the D2300 series differential pressure gauge the aristocratic product among all pressure gauges
Can be used for embedded panel installation, directly embedded into color steel plates or cabinet surfaces for installation.
The dial has high transparency, is hard and resistant to damage, and the scale indications are clear and beautiful.
The red end of the pointer is very eye-catching, and the horizontal reading of the scale value has a small error.

The pointer is made of heat-treated aluminum tube and fixed on the spiral shaft.
The pointer block is made of molded rubber to avoid damage when the pointer overtravel.
The cross arm accessory assembles the spiral shaft, spiral bearing, and pointer shaft together.
The gemstone bearing adopts shockproof installation, which can make the spiral shaft move frictionlessly.

High viscosity silicone oil reduces the damping of pointer movement and ensures accurate indication.
The zero adjustment screw adopts an O-ring, which has good sealing performance and can adjust the zero point without removing the dial.
The spiral shaft is made of precision alloy with high magnetic permeability, and can move freely with gemstone bearings. It is used to rotate the pointer to indicate the scale.
The samarium cobalt permanent magnet block is installed at the other end of the range spring and uses magnetic force to rotate the spiral shaft.
The range calibration spring uses spring steel plates with good repeatability, which are linked with the compressed diaphragm to calibrate the range.
The silicone diaphragm and O-ring are molded together and installed between the front and back plates. It is tightly fixed and sealed. The displacement of the diaphragm is limited to protect against potential damage caused by overpressure.
The precision manufactured cast aluminum shell can withstand a 168 hour salt spray corrosion test. Dark gray painted surface. All casings are of standard size and can be surface mounted or embedded.
O-ring is used between the gauge cover and the housing to ensure that pressure is sealed inside.

6、 Select accessories