This precision pressure calibrator combines micromachined silicon piezoresistive and resonating element sensors with the latest microprocessor technology, features 0.025% of reading accuracy. It is a totally self contained, battery powered pressure test and calibration system. Standard features include electrical measurement and supply capability, pressure and vacuum generation, simultaneous displays of pressure/vacuum and electrical parameters, extensive data processing and storage capability and RS 232 interface.
The unit features an impact resistant, splash and dust proof NEMA 4X enclosure. All of the main controls are via a membrane keypad.
Data Log This enables the unit to act as data logger and store up to 10,000 readings. Record and Replay facilities are included.
FEATURES
Integral pressure/vacuum generation
Barometric accuracy: ±0.015%
Voltage/current power source
Accuracy: ±0.025% of reading
NEMA 4X sealed case
Data transfer via RS-232
Range: -14.7 to 300 psi
Functions include; peak readings, switch testing, data logging, leak testing, data logging, leak testing, limit setting, data analysis
SPECIFICATIONS
Pressure Measurement Specifications
Operating Pressure Range
-14.7 to +300 psi Option available for absolute pressures via Barometric Reference sensor. See Option A
Pressure Scale Units
PSI, ft. H2O, in Hg, kPa standard - 23 different scales under SET-UP, user selectable
±999999 capability on both pressure and electrical parameters. ±9999 for ranges below 1.5 psi (FS)
Display
1.5" x 5.2" L.C.D. graphics panel. 240 x 64 pixels. Backlit.
Display Overload
110% F.S. Pressure overrange nominal. Above this the display flashes.
Resolution
17 bits (0.00075% F.S.)
Response
2 readings per second nominal
Zero Control
Pressure offset correction by key press Ability under process key to permit TARE of pressure, voltage and current, either manual or displayed value.
Accuracy
±0.025%, of reading between 1% and 100% F.S. 0.002 psi below 1% F.S. Figure includes 90 day stability. Combined non linearity, hysteresis and repeatability (included within the above accuracy figure).
Positive Pressures
±0.025% of reading between 1% and 100% F.S. ±0.001 psi below 1% F.S.
Negative Pressures
±0.025% of reading between -14.7 psi to -3 psi ±0.001 psi between 0 and -3 psi
Temperature Effects
-14.7 to 300 psi gauge calibrator over 15° to 100°F the averaged temperature coefficient ±0.0012% of reading/°F
Position Effect
Negligible
Electrical Specifications
Electrical Inputs
Voltage Measurement
0 to ±50 V DC auto ranging, resolution 10μV. Input impedance 10mΩ. Accuracy ±0.04% of reading ±1 digit including 90 day stability. ±0.004% of reading/°F
Power Supply
Supplied fitted with Ni-Cad rechargeable pack. Can also be powered by 6 x D cells, alkaline recommended. Battery Life: 25 hours nominal for Ni-Cad. 75 hours nominal for alkaline. External PSU/charger unit suppliedas standard.
Current Measurement
0 to ±55 mA d.c. resolution 0.001mA Internal resistance nominally 10Ω/ Accuracy 0.03% of reading ± 1 digit including 90 day stability. ±0.004% of reading/°F
Electrical Outputs
Voltage Output
Programmable floating output in the range 0 to 24 V DC max 50 mA. Suitable also for current loop energizing and switch testing.
Current Output
Programmable output in the range 0 to 55 mA DC for current display calibrations. Configured as source, voltage limit 19 V. Configured as sink, voltage limit maximum 30 V, voltage limit minimum 5V.
Analog Output Signal
Proportional to displayed pressure. Accuracy s display. 0 to 24 V DC with 16 bit (0.001% F.S.) resolution. User programmable zero and full scale settings. Bandwidth 1 to 2 Hz - updated each new reading. Current output can also be provided either 0 to 50mA or 4 to 20mA for 0 to F.S. pressure
Environmental Specifications
Temperature
Operating 15° to 100°F Storage 0° to 140°F
Sealing
Instrument NEMA 4X Battery charger to laboratory standard.
Electro Magnetic Compatibility
Designed to meet BS6667/HD481 and BS6527 / EN55022.
Physical Specifications
Dimensions/Weight
5.5 inches z 11 inches x 14.5 inches / 9 lbs. nominal
Pressure Connections
1/8 NPT female
Included
Carrying case and a complete set of test leads are included.
CAT NO.
MODEL
DEscRIPTION
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Precision Portable Pressure Calibrator
