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| 7050LP Low Pressure Indicator |
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The Model 7050LP provides an easy-to-use, high performance approach to measuring very low pressures. It can also be used as a calibration tool for calibrating low pressure devices from fractions of an inch of water up to 30 inH2O and beyond. The 7050LP is available in three different range combinations:
- 10 inH2O and 30 inH2O
- 20 inH2O and 60 inH2O
- 35 inH2O and 100 inH2O
Each combination provides a precision of 0.005% of each installed range and a one year stability of 0.005% of reading. A Labview® driver is also available for download. If a low pressure calibrator that measures and controls pressure is required, consider the 7250LP which offers automatic pressure control with the same available pressure range combinations as the 7050LP
- Precision of 0.005% of each range
- Active matrix color screen with enhanced navigation menus
- Utilizes unique quartz sensor.
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Standard Pressure Ranges |
| Model 7050LP |
10/30 inH2O (25/75 mbar)
20/60 inH2O (50/150 mbar)
35/100 inH2O (87/250 mbar) |
| Optional Modes |
Absolute using barometric reference sensor for ranges from 15 to 1500 psig (1.0 to 100 barg) Absolute using vacuum reference option for ranges 5 to 1500 psig (400 mbar to 100 barg) Negative gauge |
Performance |
| Precision |
Model 7050LP
From 10% to 100% of maximum FS, 0.005% reading, Below 10% maximum FS: 0.005% of 10% maximum FS |
| Stability |
0.0075% of reading per year |
| Display Resolution |
User selectable to 1:1,000,000 |
| Negative Gauge Precision (optional) |
Model 7050LP
0.005% of reading from 10% to 100% maximum FS
Below 10% maximum FS 0.005% of 10 maximum FS |
| Barometric Reference (optional) |
0.002 psi (0.1379 mbar) maximum error per year |
| Vacuum Reference (optional) |
0.0002 psi (0.014 mbar) maximum error per year |
Calibration |
| Calibration |
A calibration report with traceability to National Institute of Standards and Technology (NIST) is provided. An ISO-17025 accredited calibration is available. |
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Total Uncertainty |
| Maximum deviation from the true value of pressure including precision, stability, temperature effects and the calibration standard |
| Model 7050LP |
10/30 inH2O (25/75 mbar) RSS: 0.005% and 0.0076% of reading per year down to 10% of maximum FS, Below 10% RSS: 0.00015 inH2O (0.000375 mbar) and 0.0076% of reading per year |
Communications |
| Communications |
RS232 and IEEE-488, SCPI syntax. Series 7250, 7215, Model 7000 and Series 6000 emulation are standard.
MET/CAL® drive—optional
LabView® drive
Firmware updates are performed via RS232 Interface |
Languages |
| Menus and functions |
The Series 7050 is capable of displaying menus and functions in:
English, French, Chinese, German, Japanese, Spanish and Italian |
Options |
| Options |
- Barometric reference (absolute and negative gauge)
- Vacuum reference* (absolute)
- Negative gauge only
- MET/CAL driver
- Intecal software
- NVLAP-accredited calibration
- Rack mount kit
- Liquid trap assembly
*Requires external vacuum pump |
General |
| Display |
TFT, VGA, active matrix, 6.4 in (162.5 mm) 640 x 480 resolution, 65,000 colors |
| Temperature |
Operating: 64°F to 96°F (18°C to 36°C)
Storage: -4°F to 158°F (-20°C to 70°C) |
| Humidity |
5% to 95% relative humidity, non-condensing |
| Dimensions (h x w x d) |
All versions: 7 in x 16.5 in x 19 in
(178 mm x 419 mm x 483 mm) |
| Weight |
All models: 16 lb (7.5 kg) |
| Power |
90 to 260 VAC, 50/60 Hz, 150W |
| Test Port and Reference Connection |
1/4 in NPT female |
| Warm Up Time |
2 to 3 hours; may be left on indefinitely |
| Pressure Medium |
Nitrogen or clean dry air |
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