Features

• Ranges from 25mbar to 210bar
• Precision 0.01% full scale
• Measuremnt stability 0.01% of reading/year
• Control stability 0.001% of span
• User friendly, high speed control
• Unique, patented control system
• RS 232 and IEEE 488 communications
• Sensor calibration module

Applications

The following pressure measurement and control functions can be readily selected from the DPI 515 user menu: Dual Range
This option extends both the measuring and control accuracy of the DPI 515. For this feature the unit is equipped with a second pressure sensor and a control manifold is fitted. Uniquely, both ranges are fully independent, providing control stability based on each individual FS range. Any two pressure ranges may be selected. Each range is mechanically independent, with its own dedicated input and output pressure port connections, and can be selected either manually or automatically.

Barometric Reference
A high-precision barometric sensor option can be installed, which enables gauge pressure ranges to be converted into absolute pressure values. Precision is determined by the addition of the barometric reference precision to that of the pressure range being used. This option increases the versatility of the pressure controller, allowing it to perform both gauge and absolute pressure control/calibration with the same instrument. Selecting gauge pressure ranges and using the barometric reference for absolute pressures ensures easy zeroing by eliminating the need to apply a vacuum reference.

Pressure Switch Testing
This function permits automatic and accurate calibration of pressure switches for opening and closing pressure values, displaying all associated data, including hysteresis.

Leak Testing
This function automatically measures leak rates in the desired units/minute. Once the control system achieves the required pressure, the controller is isolated, leaving the measurement software to record any system leaks over the specified time period.

Test Program
For those who perform regular calibration routines or process procedures, a facility is included to write and save up to sixteen test programs. This saves time and reduces procedural errors.

Span Divider
For quick calibration, each soft key is defined as equal divisions of a specified pressure span; alternatively, the soft keys can be set quickly to 10% points.

Preset
For quick calibration, each soft key can be defined as an individual pressure setpoint value.

Control Rate
The response of the pressure controller is adjustable for fast, no overshoot and variable. This allows user selection according to the speed and sensitivity of the application, for example, “no overshoot” for a valid hysteresis calibration of dial gauges.

Pressure Units
Twenty-four pressure units are supplied as standard, the six most popular of these may be set up for quick selection by the soft function keys.

Aeronautical Units
Full control is available in aeronautical units, altitude in feet/meters, airspeed in knots, km/hr, Mach and rate of climb in ft/min and m/min.

Multi-language
The instrument display can be selected to read in English, French, German, Italian, Portuguese or Spanish, according to the user preference.

Jog
The setpoint can be moved in small incremental steps using the rotary control, for example, to determine exact cardinal points on dial gauges.

Specifications

Pressure Measurement

Standard Pressure Ranges	10 inH2O (25 mbar) gauge 1 and 3 psi (70 and 200 mbar) gauge 5, 10, 15, 30, 50, 100, 150, 300, 500, 1000, 1500, 2000, 3000 psi (350 mbar, 700 mbar, 1, 2, 3.5, 7, 10, 20, 35, 70, 100, 135 and 210 bar) gaugeGauge versions are available with negative gauge calibration as an option. For absolute pressure ranges, specify option (A). Barometric Reference. Absolute pressure ranges are above plus atmospheric pressure.
Over Range	10% above full scale pressure range (measure mode only)
Pressure Media	Dry, oil free, non-corrosive gas. Dry air or nitrogen recommended.

Display

Panel	Large area, high-contrast, emissive graphics LCD
Readout	±9999999 maximum, updated 2 times per second
Pressure Units	24 scale units plus one user-defined psi, bar, mbar, Pa, hPa, MPa, kgf/cm3, mmHg, cmHg, mHg, inHg, mmH2O, cmH2O, mH2O20, inH2O04, inH2O60, ftH2O20, ftH2O04, lb/ft2, torr, atm, special
Languages	English, French, German, Italian, Portuguese, and Spanish

Performance

Precision	Precision 0.01% full scale from 10 psi to 3000 psi (700 mbar to 210 bar)* Precision 0.03% full scale below 10 psi (700 mbar)* Precision includes non-linearity, hysteresis, repeatability and temperature effect between 65°F and 85°F (18°C and 28°C), for both absolute and gauge pressures. Plus 0.004% full scale for 50°F to 115°F (10°C to 45°C).* Calibration standard (deadweight tester) accuracy 0.005% of reading
Negative Gauge Precision	Maximum error at any negative pressure value is equal to maximum error at the equivalent positive pressure value.
Measurement Stability	0.01% of reading per year, from 10 to 3000 psi (700 mbar to 210 bar) 0.002% of reading per year below 10 psi (700 mbar)
Barometric Reference Precision	Precision for the optional barometric reference 0.002 psi (0.15 mbar). Includes non-linearity, hysteresis, repeatability and temperature effects between 40°F and 125°F (5°C to 50°C). Long term stability 0.002 psi (0.15 mbar) per year.
Controller Stability	Better than 0.001% of span for ranges between 10 psi and 1000 psi (700 mbar and 70 bar). For pressures above 1000 psi (70 bar) better than 0.0015% of span. For pressures below 10 psi (700 mbar) better than 0.003% of span. For 10 inH2O (25 mbar) range better than 0.008% span. 0.004% span with low pressure filter kit, supplied with units of 30 psi (2 bar) and below.
Controller Response	Less than 10 seconds into a 3 cubic inch volume, up to 10% full scale steps within 20 ppm of setpoint.
Gas Consumption	All supply gas is delivered to the system. No gas is used in measure mode, or when the instrument is turned off. *Precision assumes regular zeroing.

Dual Range

A single unit may have a combination of any two pressure ranges regardless of the ratio between them.

Electrical

Communications	RS232 and IEEE-488.2 HS interfaces supplied as standard. SCPI protocol and DPI 500, DPI 510, DPI 520 and Ruska Series 7000 emulation
Control Inputs and Outputs	1 opto-isolated input for switch test or event trigger 2 relay outputs 24 VDC output to energize external devices via logic outputs
Power Supply	90 to 260 VAC, 50 to 60 Hz Power rating 60 VA

Environmental

Temperature	Operating: 40°F to 125°F (5°C to 50°C) Calibrated: 73°F (23°C) Storage: -5°F to 140°F (-20°C to 60°C)
Humidity	Compliant with Def. Stan. 66-31 8.6 Cat 3
Vibration	Compliant with Def. Stan. 66-31 8.6 Cat 3
Shock	Mechanical shock conforms to EN61010
Conformity	EN61010, EN61326-1, 97/23/EC CE marked

Physical

Weight	Approximately 20 lb (9 kg)
Dimensions	15.35 in x 2.5 in x 11.8 in (390 mm x 132 mm x 300 mm). 3 U high case
Installation	Retractable feet supplied for benchtop use, alternatively an optional rack mounting kit allows easy installation within a 19 in (483 mm) rack system
Pneumatic Connections	1/8 BSP female or 1/8 NPT female via adapter supplied on vent, supply and outlet connections (USA only) Reference connection M5 female

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