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Dwyer Series Mark II 25 Molded Plastic Manometer
$70.00
In stock
SKU
AS0120
The Dwyer Mark II Model No. 25 inclined-vertical manometer, 0-3 in w.c is used for general purpose stationary applications and for the ongoing monitoring of atmospheric or differential pressure.
The Dwyer Mark II 25 inclined differential manometer with red gauge fluid has a 0 to 3 in H2O measuring range, built in zero level and molded plastic case for monitoring air velocity and air filter performance, and taking pressure measurements above and below atmospheric pressure. Red gauge fluid is freeze-proof and has lower evaporation rate for use in cold environments, and produces expanded scale viewing for improved reading resolution. The built-in zero level provides linear calibration. The manometer has a styrene-acrylonitrile housing, indicating tube, and fluid wells for strength and durability. The molded ABS knobs and zero adjust plunger and shock-mounted glass level vial are wear-resistant. Leakproof O-ring seals and overflow tank reduce the risk of fluid loss. Scales are lithograph printed on aluminum to ease reading, and are epoxy coated to protect against wear. The manometer can be mounted on any vertical surface.
Manometers measure the pressure of a liquid or gas. They are used in laboratory, medical equipment, engineering, automotive, and heating, ventilation, and air-conditioning applications. Manometers measure any combination of gauge, absolute, or differential pressures. Gauge pressure is the amount of pressure in a system relative to the ambient pressure, absolute pressure is the amount of pressure in a system relative to an absolute vacuum, and differential pressure is the difference between two pressures. Analog manometers are composed of columns of liquid, and they use gravity and the liquid's density to calculate pressure. Because they have no moving parts, analog manometers do not require re-calibration. Digital manometers have pressure sensors that are connected to a system with a hose to provide a digital readout of the amount of pressure present in a system. They use microprocessors to calculate pressure, and they require periodic calibration to help ensure accuracy.
Features/ Benefits
- Broad ranging in easy to read calibrated increments.
- Gages ideally suited for general measurements and specific air applications.
- Compact, stationary or portable device, make it a simple to use tool for pressure measurement in OEM or user applications.
Applications
- Paint booths
- Air velocity measurement
- Air filter gage
Specifications
- Type: Inclined / Vertical
- Accuracy: +3%FS.
- Temperature Limits: 140 deg. fahrenheit (60 deg celsius)
- Pressure Limits: 10 psi (70 kPa)
- Weight: 1.04 lb (472 g)
| Brand | Dwyer Instruments |
|---|---|
| Air Filtration Tool Type | Manometer |
| Accuracy | +3%FS |
| Temperature Limit | 140 deg. fahrenheit |
| Pressure Limits | 10 psi |
| Equipment Style/Type | Inclined / Vertical |
Dwyer Mark II Manometers come in a variety of ranges. Make sure the fluid being used is for the correct manometer.
Mark II #25, 27, MM-80 and M-700 Pa use red gage fluid (specific gravity 0.826).
Installation
Position manometer on a vertical surface. Drill two 1/8˝ or 9/64˝ holes on a vertical line 3-15/16˝ apart. Loosely mount manometer with self-tapping screws provided. Adjust gage until level bubble is centered in level vial, then secure the manometer tightly.
For portable use, order optional A-612 Portable Stand.
Filling
Turn the zero set knob counterclockwise until it stops, then turn clockwise 3 full turns. This puts zero in approximately the middle of the travel adjustment in either direction. Remove the fill plug and fill with gage fluid until fluid reaches zero on scale. Minor adjustments can be made to adjust zero by adjusting zero knob. Replace fill plug. If gage is overfilled, remove excess by inserting pipe cleaner through the fill port to blot up excess fluid.
Maintenance
Check fluid level regularly and adjust zero with zero adjust knob. Be sure tubing connections are disconnected and gage is open to atmosphere before adjusting zero. Clean with mild soap and water. Avoid any cleaning fluids which may result in damaging the gage.
Accessories
Each Mark II manometer includes two tubing connectors for 1/8˝ pipe or sheet metal ducts, two mounting screws, 1 oz. bottle of indicating fluid, red and green pointer flags, 8´ of double column tubing and instructions.
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