7250, 7250i, and 7250xi Pressure Controller / Calibrators

Product By Flir Logo
  • Pressure ranges from 0 to 5 and 0 to 3 000 psi (0 to 35 kPa and 0 to 21 MPa)
  • Model 7250xi and 7250i provide advanced precision of 0.005 % of reading
  • Model 7250 provides 0.003 % of full scale precision
  • Stability: 0.0075 % of reading per year
  • Time to setpoint: 20 seconds with no overshoot
  • Control stability: 10 ppm
  • Active matrix color screen with enhanced navigation menus
  • Languages: English, French, Chinese, German, Japanese, Spanish and Italian  

The Series 7250 Pressure Controllers/Calibrators offers unmatched performance, an active matrix color screen and enhanced control stability. Utilizing multiple sensors and ranges in a single instrument, the Series 7250 combines precision, stability, speed and affordability. Models 7250xi, 7250i and 7250, up to 2,500 psi (17.2 MPa), use a unique quartz sensor, the most accurate pressure sensing technology in a pressure calibrator. Each quartz sensor is manufactured and tested to provide the ultimate performance required by a Fluke Calibration pressure calibrator, ensuring that every customer receives quality, precision and stability in their instrument.

Pressure Ranges

Model 7250Any Full Scale pressure range from 5 to 2,500 psig (35 kPa to 17.2 MPa). Or, Permanent Absolute ranges from 15 to 50 psia (100 to 350 kPa). A 3,000 psia range (21 MPa) is also available.
Model 7250iAny Full Scale pressure range from 5 to 2,500 psig (35 kPa to 17.2 MPa). Or, Permanent Absolute ranges from 15 to 50 psia (100 to 350 kPa). A 3,000 psia range (21 MPa) is also available.
Model 7250xiAny Full Scale pressure range from 20 to 2,500 psig (138 kPa to 17.2 MPa).
Optional ModesAbsolute using barometric reference sensor for ranges from 15 to 2,500 psig (100 kPa to 17.2 MPa)
Vacuum (negative gauge) for ranges 5 to 2,500 psig (35 kPa to 17.2 MPa)
Vacuum reference (requires external vacuum pump)

Performance

PrecisionModel 7250
Ranges to 2,500 psi (17.2 MPa): 0.003% of FS
3,000 psi (21 MPa): 0.012% reading from 30% to 100% full scale. Below 30% FS: 0.00036% full scale

Model 7250i
From 25% to 100% full scale (FS): 0.005% reading
Below 25% FS: 0.005% of 25% FS

Model 7250xi
From 5% to 100% full scale (FS): 0.005% reading
Below 5% FS: 0.005% of 5% FS

Precision is defined as the combined effects of linearity, repeatability and hysteresis throughout the operating. Expression of uncertainty conforms with the recommendations of the ISO Guide to the Expression of Uncertainty in Measurement.

StabilityRanges up to 2,500 psi (17.2 MPa): 0.0075% of reading per year
3,000 psia (21 MPa) range: 0.005% of reading
Control StabilityActive mode: 0.001% FS (10 ppm) Passive mode: no additional uncertainty
Display ResolutionUser selectable to 1:1,000,000
Control Response20 seconds or less with zero overshoot into a 15 in3 volume (245 cc) for ranges to 2,500 psi (17.2 MPa)
60 seconds for 3,000 psia (21 MPa) range
Negative Gauge Precision (optional)

Model 7250
0.003% of FS

Model 7250i
0.005% of 25% FS or 0.00075 psi (0.005 kPa), whichever is greater

Model 7250xi
0.005% of 5% FS or 0.00075 psi (0.005 kPa), whichever is greater

Barometric Reference (optional)0.002 psi (0.014 kPa) maximum error per year
Vacuum Reference (optional)0.0002 psi (0.0014 kPa) maximum error per year (Only available on 7250i and 7250)

Calibration

CalibrationAn accredited calibration report is provided standard.

Total Uncertainty

Maximum deviation from the true value of pressure including precision, stability, temperature effects and the calibration standard
Model 7250Ranges to 2500 psi (17.2 MPa)
90 day 0.003% FS + 0.002% reading
1 year 0.003% FS + 0.0075% reading

3,000 psi (21 MPa)
30% to 100% FS
90 day: 0.012% reading
1 year: 0.013% reading

Model 7250iRanges from 25% to 100% full scale
90 day: 0.0055% reading
1 year: 0.009% reading
Model 7250xiRanges from 5% to 100% full scale
90 day: 0.0055% reading
1 year: 0.009% reading

Control Parameters

Volume5 to 60 cubic inches (82 to 980 cc)
Low Control (absolute)0.15 psia (1 kPa)

Communications

CommunicationsRS232 and IEEE-488, SCPI syntax. Series 7215, Model 7010, Series 6000 and DPI 510 emulation are standard.
LabVIEW driver
Firmware updates are performed via RS232 interface.

Languages

Menus and functionsThe Series 7250 is capable of displaying menus and functions in:
English, French, Chinese, German, Japanese, Spanish and Italian.

Options

Options
  • Barometric reference (absolute and vacuum)
  • Vacuum mode (negative gauge)
  • Vacuum reference (requires external vacuum pump)
  • Intecal software
  • NVLAP-accredited calibration
  • Triple scale for 3,000 psia (21 MPa) 7250
  • Rack mount kit
  • Liquid trap assembly

General

DisplayTFT, VGA, active matrix, 6.4 in (162.5 mm) 640 x 480 resolution, 65,000 colors
TemperatureOperating: 64°F to 96°F (18°C to 36°C)
Storage: -4°F to 158°F (-20°C to 70°C)
Humidity5% 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)
WeightModel 7250/7250i: 17 lb (7.7 kg)
Model 7250xi: 20 lb (9 kg)
Test Port and Supply Connection1/4 in NPT female
Warm Up Time2 to 3 hours; may be left on indefinitely
Pressure MediumNitrogen or clean dry air