Thermo Fisher Scientific and GE Ruska have announced the immediate availability of the Model 7250LP low pressure digital pressure calibrator which is specifically designed for calibrating low pressure gauges, magnehelic gauges, sensors, portable calibrators and other devices in the inches of water pressure range.
The 7250LP provides a highly accurate, automated method of calibrating low pressure devices since it incorporates two ranges into one instrument, 10 inH2O and 30 inH2O with a precision of 0.005% of each range (±0.0005 inH2O when using the 10 inH2O range).
In addition to ultimate accuracy, the 7250LP maintains the set-point pressure to within ±0.004% inH2O, providing the control stability required to calibrate virtually any low pressure device. A 7250LP with internal ranges of 20 inH2O and 60 inH2O is also available.
The new Model 7250LP is an expansion of the popular Series 7250 digital pressure controllers which are available in range from 0-5psi to as high as 0-3000 psi.
The Series 7250 can incorporate multiple ranges in one instrument to provide 0.005% of reading performance form 5% to 100% of the instruments range.
The Series 7250 represents the fifth generation automated pressure controller from Ruska and is the result of more than 30 years of customer input, application experience, engineering technology and manufacturing capability.
For ease of use, the 7250LP utilises an active matrix, full colour screen with a large, 6.4 inch diagonal viewing area.
This easy to read display allows all manus to be displayed with full test descriptions and in multiple languages including English, French, German, Italian, Japanese, Spanish and Chinese.
The 7250LP also features two user selectable control modes, active mode and passive mode. in active mode, the 7250LP will continuously control the set-point and correct for small leaks and temperature effects that may be present in the system.
In passive mode, the user is able to define an upper and lower limit around the set-point where the controller will deactivate once the pressure is within the limit settings.
In a leak free and temperature stable system, no additional uncertainty or instability is contributed t the test or calibration.
The 7250LP is supplied with both an IEEE-488 and RS232 interface for automation via PC control. Ruska's CalManger II software can further assist with complete automation of the calibration process. Or, take advantage of the optional MET/CAL or LabVIEW driver.
The 7250LP is also provided with an NIST traceable calibration certificate, or Ruska can optionally provide a NVLAP accredited calibration certificate to those companies required an accredited supplier.