Druck DPI 605 Data sheet

GE

Sensing

DPI 605

DPI 605 is a Druck product.
Druck has joined other
GE high-technology sensing
businesses under a new name—
GE Industrial, Sensing.

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• Integral pressure vacuum generation, vacuum to
300 psi (20 bar)

• Barometric accuracy ±0.0044 inHg (±0.15 mbar)

• Voltage/current power source

• Calibration management software compatible

• ±0.025% of reading accuracy

• Dual pressure and electrical readout

• Data storage and transfer via RS232

• Temperature measurement to 400°F (200°C)

• Intrinsically safe version

• Functions include:

- Peak readings

- Switch testing

- Data logging

- Leak testing

- Limit setting

- Data analysis

Features

Druck Precision Portable
Pressure Calibrators

The DPI 605 precision pressure calibrator provides a
simple and cost effective means of meeting the
calibration requirements of ISO 9000 and other similar
quality standards. The instrument, which 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 RS232
interface.

To simplify field calibration and the collection and
transfer of data, if offers a wide range of standard
functions. Peak readings, switch testing, data logging,
leak testing, limit setting and results analysis all add to
the versatility of this instrument. Test data is safely
stored in the non-volatile memory and, when the
calibration work is completed, can be easily downloaded
into the computer. Druck also offers auto calibration and
data analysis software specifically designed to run on a
PC. This enables completely automated calibrations to be
carried out with the DPI 605.

Total Quality Management

The DPI 605 is a powerful tool in the support to quality
management systems. Together with data analysis and
auto calibration software, it can perform an almost
limitless range of pressure calibration and test functions.
Reports for up to 40 independent 20-point calibrations
can be stored. Routine Calibrations can be transferred

from the data base to the DPI 605 and results
downloaded to update records, analysis and histograms,
etc. The complete system permits audit trail compliance
with all of the major quality management standards, FDA
validation and OSHA requirements.

The simple keypad operation of the DPI 605 provides
easy and rapid access to all the calibration and test
facilities.

Pressure Key Functions

These keys define the desired pressure measurement
parameters.

Range

This is used to select an internal or external transducer
and the gauge, absolute or barometric pressure reading.

Units

Up to four alternative pressure units are immediately
available.In conjunction with the SET-UP key, 24 pressure
units can be assigned to the instrument.

Limits

This key is used when it is necessary to protect the
instrument under test from pressure overload. A safety
limit will block the pump action at the desired maximum
pressure and trigger an audible alarm.

Process

The process key allows access to a range of functions:

• Tare_provides a facility to offset the displayed pressure
reading by either the currently displayed pressure or a
manually entered value.

• Peak_records the maximum and minimum pressure
levels obtained during operation.

• % full scale (FS)_converts the indicated pressure
reading to a % FS reading over the operator defined
zero and FS range.

• Filter_this will stabilize the display if the instrument is
connected to a fluctuating pressure line.

Zero

Used to remove display zero offset

Pressure/Vacuum

Changes the operation of the hand pump from pressure
generation to vacuum generation

Pressure and vacuum generation and adjustments are
achieved by an integral hand pump and volume adjuster,
with a release valve for venting. When it is important that
the maximum pressure for the unit under test is not
exceeded, a safety LIMITS function may be selected to
automatically block the pumping action at the desired
set pressure.

The advanced sensor and thermal compensation
technologies employed allow the standard instrument to
cover a range of -14.7 to 300 psi (-1 to 20 bar). Unlike
competitive calibrators, it is not necessary to purchase
multiple pressure modules to test units over this range.

An indicator version is available for operation up to
5000 psi (350 bar) with internal transducers, and up to
10,000 psi (700 bar) with external transducers. The
indicator includes all the features of the calibrator except
for the integral pressure and vacuum generation
capability.

For barometric pressure measurement, a high accuracy
resonating silicon pressure transducer is added to the
instrument. This sensor allows simulation of other
absolute pressures by adding the barometric value to the
gauge measurement. In addition, an optional
temperature probe can be supplied for temperature
measurements up to 400°F (200°C).

The DPI 605 features an impact resistant, splash and dust
proof enclosure. All of the main controls are via a
membrane keypad and the LCD graphics display is
mounted behind a tough polycarbonate window. The
display can be illuminated when measurements have to
be made under poor lighting conditions. All of the
electrical input and output connections are recessed into
the sides of the enclosure to avoid accidental damage.
The instrument weighs only 9 lb (4 kg) and is supplied
with a carrying case that contains a separate storage
compartment for test leads and other accessories.

GE

Sensing

GE

Sensing

Electrical Input Key Functions

Four keys control the digital multimeter facilities of the
instrument.

Volts

Measures ±50 V with 0.01mV maximum resolution

mA

Measures ±55 mA with 0.001 mA resolution

Temp

With the optional PT 100 platinum resistance probe, the
instrument provides a temperature measurement
display. The scale is from -60°F to 400°F (-55°C to 200°C)
and the units are selectable as °F or °C.

Electrical Output Key Functions

These two keys are used to configure the electrical
outputs as either a fixed voltage or current ,
programmable via the keypad, or an analog output of
any of the measured parameters, i.e. pressure,
temperature, voltage and current.

Volts

Programmable within the range 0 to 24 V

mA

Programmable within the range 0 to 55 mA

Mode Select Keys (blue keys)

The nine mode select keys provide access to a variety of
functions

On/Off

Switches the instrument on or off. The DPI 605 can be
programmed to automatically switch itself off after a
defined period of inactivity.

Display Light

Improves viewing visibility in poorly lit locations. Can be
programmed to switch itself off after a defined period of
time.

Set-up

Enables selection of the following variables:

• Units_24 pressure scales

• Temperature_°F or °C

• Comms_to set up the RS232 communication
parameters, i.e. Baud-rate, Parity, Handshake.

• Auto off_provides automatic power saving.

• Clock_permits operator to set up time and date
functions.

• Calibration_provides access to calibration parameters.
A password (PIN #) is required before entry is
permitted.

Switch Test

This key configures the instrument to test pressure
switches. The pressure display indicates the applied
pressure and status of the switch contacts. When the
pressure is varied and the switch contacts change, the
display records the event, i.e. switch contacts opened at
50 psi (3.5 bar) and closed at 30 psi (2 bar).

Data Log

This enables the DPI 605 to act as data logger and store
up to 10,000 readings. Record and Replay facilities are
included:

• Record_provides for entry of tag number, selection of
data log trigger (internal or external), selection of stop
event (time or number of samples), and set up of start
delay time.

• Replay_is used to either recall any selected data log
file to the display, or to download the stored data to an
external printer via the RS232 port. The data can be
presented in a numerical or graphical format. The
graph can be displayed as pressure vs time, electrical
vs time or pressure vs electrical.

Leak Test

This function provides a leak test facility for the unit or
system under test. The display is reconfigured to indicate
pressure drop and leak rate. Three additional functions
are allocated to this facility:

• Wait_delay the start to allow pressure setting

• Time_the duration of leak test period.

• Reset_resets leak test display values to zero on
completion of the test.