Dwyer Mark II M-700Pa Differential Pressure Gauge
Inclined/vertical liquid column manometer, M-700Pa range 10-0-700 Pa, accuracy ±3% FS.
- Original Factory Genuine, Tenfold Compensation for Counterfeits
- Full Machine Warranty, Lifetime Maintenance
- In Stock, Shipped on the Same Day
The Mark II series comprises inclined-tube and inclined-plus-vertical combination liquid column manometers. The M-700Pa model has a range of 10-0-700 Pa and an accuracy of ±3% FS. It requires no power supply and offers direct readings, making it suitable for low differential pressure measurement in air-conditioning ducts and on-site air velocity comparison.
| Parameter Name | Technical Specifications |
|---|---|
| Main specifications | |
| Accuracy | ±3% of full scale |
| Temperature limit | 140°F (60°C) |
| Weight | 1.04 lb (472 g) |
| Type | Inclined-tube / inclined-plus-vertical combination liquid column manometer |
| Pressure Resistance | Inclined type 15 psi (100 kPa) / inclined-vertical type 10 psi (70 kPa) |
| Scale length | Approx. 8-1/4" (21 cm) |
| Liquid fill | Red oil (0.826 specific gravity) or blue oil (1.91 specific gravity) |
| Model selection | |
| MARK II 25 | 0-3" w.c. / Red Oil, .826 sp gr |
| MARK II 26 | 0-7" w.c. / Blue Oil, 1.91 sp gr |
| MARK II MM-80 | 0-80 mm w.c. / Red Oil, .826 sp gr |
| MARK II MM-180 | 0-180 mm w.c. / Blue Oil, 1.91 sp gr |
| MARK II M-700PA | 10-0-700 Pa / Red Oil, .826 sp gr |
| MARK II 40-1 | .1-0-1.0" w.c. / Red Oil, .826 sp gr |
| MARK II 40-25MM | 0-26 mm w.c. / Red Oil, .826 sp gr |
| MARK II 40-250PA | 10-0-250 Pa / Red Oil, .826 sp gr |
| MARK II 41-2 | .2-0-2.4" w.c. / Blue Oil, 1.91 sp gr |
| MARK II 41-60MM | 0-60 mm w.c. / Blue Oil, 1.91 sp gr |
| MARK II 41-600PA | 20-0-600 Pa / Blue Oil, 1.91 sp gr |
- Combined inclined and vertical tube, high resolution at low readings
- ±3% full-scale accuracy, direct reading, no power supply required
- Quick shut-off pressure ports with integral overpressure protection
- Measures positive, negative and differential pressure
HVAC duct micro differential pressure measurement
Take pressure at the duct or room partition, read the minute differential pressure with the liquid column gauge and verify supply/exhaust air balance.
On-site comparison of filters and air velocity
Measure dynamic pressure with a pitot tube, convert to air velocity, for on-site air volume commissioning.
Need selection advice or bulk quotation?
Send us the working condition parameters (signal type, medium, range, pressure, temperature, connection method), and our engineers will provide a selection scheme and quotation within 1 working day.
- Phone consultation +86-21-66020232
- Email inquiry web@qishan-sh.com
