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About Pressure Gauges
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Differential Pressure and Vacuum Gauges
Commonly used to indicate clogged filters, these gauges display the difference between two pressure or vacuum measurements. They are also known as compound gauges.
Aluminum Case with Aluminum Connection—Single Scale (in. of H₂O)
- For Use With: Air
- Accuracy: ±2% Mid Scale (Not Graded); except
0" to 0.2" in. of H2O: ±4% Mid Scale (Not Graded)
0" to 0.25" in. of H2O: ±3% Mid Scale (Not Graded)
Available Pressure and Vacuum Ranges | |||
|---|---|---|---|
| Pressure Range, in. of H₂O | Vacuum Range, in. of H₂O | Graduation Marks, in. of H₂O | Numeric Increments, in. of H₂O |
| 0 to 0.2" | 0" to 0 | 0.01 | 0.05 |
| 0 to 0.25" | 0" to 0 | 0.01 | 0.05 |
| 0 to 0.5" | 0" to 0 | 0.02 | 0.1 |
| 0 to 1" | 0" to 0 | 0.05 | 0.25 |
| 0 to 5" | 0" to 0 | 0.2 | 1 |
| 0 to 10" | 0" to 0 | 0.5 | 5 |
| 0 to 15" | 0" to 0 | 1 | 5 |
| Dial Diameter | Pipe Size  | Max. Pressure, psi | Environment Temp. Range, °F | Process Temp. Range, °F | Features | Includes | Each | |
NPT Female | ||||||||
|---|---|---|---|---|---|---|---|---|
| 4" | 1/8 | 15 | 20° to 140° | 20° to 140° | Two Inlets and Two Outlets | Plugs for Unused Ports | 00000000 | 000000 |
NPT Female Calibration Certificate Traceable to NIST | ||||||||
| 4" | 1/8 | 15 | 20° to 140° | 20° to 140° | Two Inlets and Two Outlets | Plugs for Unused Ports | 0000000 | 000000 |
Differential Pressure and Vacuum Gauges with Digital Display
Gauges have a four-digit LCD display for easy reading of measurements. Commonly used to indicate clogged filters, these gauges display the difference between two pressure or vacuum measurements. They are also known as compound gauges.
Aluminum Case with Brass Connection—(psi, kPa, in. of H₂O, in. of Hg, mbar)
- For Use With: Air
- Accuracy: ±0.5% Full Scale (Not Graded)
Pressure Range | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| psi | kPa | in. of H₂O | mbar | Vacuum Range, in. of Hg | Resolution, in. of H₂O | Max. Pressure, psi | For Tube ID | Environment Temp. Range, °F | Process Temp. Range, °F | Digit Ht. | Batteries Included | Features | Each | |
Barbed Tube Connection | ||||||||||||||
| 0-0.723 | 0-4.982 | 0-20" | 0-49.82 | 1.471"-0 | 0.01 | 10 | 1/8"-3/16" | 35° to 100° | 0° to 140° | 3/8" | Yes | 40-Reading Memory, Overpressure Alarm | 0000000 | 0000000 |
| 0-7.225 | 0-49.82 | 0-200" | 0-498.2 | 14.71"-0 | 0.1 | 30 | 1/8"-3/16" | 35° to 100° | 0° to 140° | 3/8" | Yes | 40-Reading Memory, Overpressure Alarm | 0000000 | 000000 |
| 0-20 | 0-137.9 | 0-553" | 0-1,379 | 40.72"-0 | 0.01 | 60 | 1/8"-3/16" | 35° to 100° | 0° to 140° | 3/8" | Yes | 40-Reading Memory, Overpressure Alarm | 0000000 | 000000 |
Barbed Tube Connection with Calibration Certificate Traceable to NIST | ||||||||||||||
| 0-0.723 | 0-4.982 | 0-20" | 0-49.82 | 1.471"-0 | 0.01 | 10 | 1/8"-3/16" | 35° to 100° | 0° to 140° | 3/8" | Yes | 40-Reading Memory, Overpressure Alarm | 0000000 | 000000 |
| 0-7.225 | 0-49.82 | 0-200" | 0-498.2 | 14.71"-0 | 0.1 | 30 | 1/8"-3/16" | 35° to 100° | 0° to 140° | 3/8" | Yes | 40-Reading Memory, Overpressure Alarm | 0000000 | 000000 |
| 0-20 | 0-137.9 | 0-553" | 0-1,379 | 40.72"-0 | 0.01 | 60 | 1/8"-3/16" | 35° to 100° | 0° to 140° | 3/8" | Yes | 40-Reading Memory, Overpressure Alarm | 0000000 | 000000 |