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| 7050i Digital Pressure Indicators |
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The Series 7050 Digital Pressure Indicators are high precision instruments for measuring pressure in a system, or combined with a manual control pack provide a high performance calibration system.
Three models are available, the 7050i provides percent of reading performance from 25% to 100%, whereas the economical 7050 provides 0.003% of full scale precision. Model 7050LP is suitable for low pressure measurements.
Various ranges are available from 1 to 1500 psi. Gauge and absolute mode can be provided in two different configurations. A barometric reference sensor option can be installed to allow switching from gauge to absolute at the push of a button, without the need for an external vacuum pump. Alternatively, for maximum performance, the Differential Model option can be supplied where a vacuum pump is connected to the reference port of the 7050. The latter provides the highest overall performance since the uncertainty of the barometer reading does not have to be incorporated into the overall performance
- Ranges from 0 - 1 through 0 - 1500 psi
- Model 7050i provides advanced precision of 0.005% of reading
- Model 7050 provides 0.003% of full scale precision
- Stability: 0.0075% of reading per year
- Labview® driver available
- Model 7050LP is a specially configured instrument for low pressure applications
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Standard Pressure Ranges |
| Model 7050i |
Select any full scale from 5 to 1500 psig (400 mbar to 100 barg). Or, permanent absolute ranges are available from 15 to 50 psia (1 to 4 bara). |
| 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 7050i
From 25% to 100% full scale (FS): 0.005% of Reading Below 25% FS: 0.005% of 25% FS
Precision is defined as the combined effects of linearity, repeatability and hysteresis throughout the operating temperature range. Expression of total uncertainty conforms with the recommendations of the ISO Guide to the Expression of Uncertainty in Measurement. |
| Stability |
0.0075% of reading per year |
| Display Resolution |
User selectable to 1:1,000,000 |
| Negative Gauge Precision (optional) |
Model 7050i
0.005% of 25% FS or 0.0005 psi (0.034 mbar), whichever is greater |
| 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 |
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Calibration |
| Calibration |
A calibration report with traceability to National Institute of Standards and Technology (NIST) is provided. An ISO-17025 accredited calibration is available. |
Total Uncertainty |
| Maximum deviation from the true value of pressure including precision, stability, temperature effects and the calibration standard |
| Model 7050i |
25% to 100% FS
90 day: 0.006% reading
1 year: 0.009% reading |
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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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