Designed for use in remote locations where AC power is not available
Designed for use in remote locations where AC power is not available, the DPI 603 enables pressure instrumentation to be serviced and calibrated.
The instrument features the capability to generate pneumatic test pressures with an integral hand-pump up to 300 psi. A volume adjuster provides fine control of the desired test value and a venting valve enables pressure release without disconnection of the device under test.
An optional pressure/vacuum switching facility can also be provided, which enables the hand-pump to source vacuum down to -22" Hg or pressure up to 300 psig.
To facilitate pressure transmitter testing and calibration a 24 VDC power supply is provided and the ability to monitor the current loop from 0 to ±55 mA DC.
For loop verification, the DPI 603 can also output a single 12mA test value, or provide a passive sink if required.
The clear LCD allows readout of pressure, voltage and current parameters with the ability to show current or voltage simultaneously with pressure.
Features
Accuracy ±0.075% F.S.
Integral pressure generation
Standard ranges up to 300 psig
5 digit LCD, multiple engineering units
Dual pressure & electrical readout
Transmitter supply & measurement
Current loop verification test
Vacuum generation available
SPECIFICATIONS
Pressure Measurement Specification
Operating Pressure Ranges
Standard full scale ranges can be specified of -14.7 psig to +15 psi, +30 psi, 100 psi or 300psig
Overpressure
The rated pressure can be exceeded by 2 x causing negligible calibration change, subject to a maximum safe working pressure of 350 psi
Pressure Media
Fluids compatible with 316 Stainless Steel, Hastelloy C276, Nylon, Viton and brass
Accuracy
Combined non-linearity, hysteresis an repeatability ±0.075% F.S. for positive or negative pressures ±1 digit
Temperature Effects
Over 32° to 105°, the averaged Span temperature coefficient will not exceed 0.007% of reading/°F
Digital Indicator
Readout & Display ±99999 capability, 0.54" LCD digits with additional 16 text characters
Pressure Scale Units
24 scale units are provided psi, lb/ft2, inHg, inH2O, ft of H2O, (40° and 68°F) torr, atm, Pa, kPa, MPa, kPa, mbar, bar, kg/cm2, kg/m2, mmHg, cmHg, mHg, mmH2O, cmH2O, mH2O, Special 2 units are presented on the display
Display Overload
Instruments are capable of nominal 120% F.S. Above this, an overrange error code is displayed
Resolution
±0.005% F.S. maximum
Response
Nominal rate of three readings per second on the digital display
Zero Control
Offset correction for pressure and electrical scales by key-press, protected against accidental use
Calibration Control
Front panel key-pad calibration controls for pressure and electrical ranges
Position Effect
Negligible
Electrical Specification
Electrical Inputs
Voltage Measurement
Range
±50V
Accuracy
±0.15% of reading ±0.02% F.S.
Temperature Coefficient
±0.006% reading/°F
Current Measurement
Range
±55mA
Accuracy
±0.075% of reading ±0.005% F.S.
Temperature Coefficient
±0.006% reading/°F
Electrical Outputs
Voltage output
24V nominal, floating, 25mA maximum
Current output
Loop check fixed 12mA nominal, source or sink
Power Supply
Battery powered 4 x 1.5V zinc carbon "D" cells, 50 hours nominal continuous operation with no load on output terminals. Battery low condition indicated by display symbol
Safety
IEC
1010
EMC
immunity to IEC 801-804
Certification
CE marked
Physical Specification
Weight
9 lbs
Dimensions
12.6" x 7.7" x 5.0" nominal
Pressure Connection
1/8" NPT female
Carrying Case
Supplied standard and with a complete set of accessories
