GE Druck DPI 610 User Manual

Druck DPI 610

Portable Pressure Calibrator
Aeronautical version

User manual - K0237

GE

Measurement & Control Solutions

Advanced Test Equipment Rentals

www.atecorp.com 800-404-ATEC (2832)

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© The General Electric Company. All rights reserved

Safety

The manufacturer has designed this equipment to be safe when operated using the
procedures detailed in this manual. Do not use this equipment for any other purpose
than that stated.
This publication contains operating and safety instructions that must be followed to
ensure safe operation and to maintain the equipment in a safe condition. The safety
instructions are either warnings or cautions issued to protect the user and the equipment
from injury or damage.
Use suitably qualified * technicians and good engineering practice for all procedures in
this publication.

Pressure

Do not apply pressures greater than the safe working pressure to this equipment.

Maintenance

The equipment must be maintained using the procedures in this publication. Further
manufacturer’s procedures should be carried out by authorized service agents or the
manufacturer’s service departments.

www.gesensinginspection.com

For technical advice contact the manufacturer.

* A qualified technician must have the necessary technical knowledge,

documentation, special test equipment and tools to carry out the required work
on this equipment.

Symbols

This equipment meets the requirements of all relevant European safety
directives. The equipment carries the CE mark.

This symbol, on the instrument, indicates that the user should refer to
the user manual. This symbol, in this manual, indicates a hazardous
operation.

This symbol, on the instrument, indicates do not throw-away in
domestic bin, hazardous material, dispose correctly in accordance with
local regulations.

i K0237 Issue No. 2

Specification

Safe working pressure

2 x full-scale

Ranges

Altitude -3000 to 50,000ft
Airspeed 0 to 600 knots

Precision

over the airspeed range:
200 knots ±3 knots
400 knots ±0.7 knots
over the altitude range:
sea level ±14 ft
10,000ft ±18 ft
30,000ft ±36 ft

Precision includes linearity, hysteresis and repeatability, 12 months measurement stability

Temperature Effects

±0.004% of reading/°C (averaged over -10° to +40°C w.r.t. 20°C)
±0.002% of reading/°F (averaged over +14° to 104°F w.r.t. 68°F)

Power supply

Batteries 6 x 1.5 V C cells, alkaline (up to 60 hours nominal use at 20°C)
Rechargeable NiCad battery pack (20 hours nominal use) supplied with charger/
adaptor, supplies power to instrument while charging batteries.

Environment

Operating Temperature: -10°C to 50°C (+14°F to 122°F)
Calibrated Temperature: -10°C to 40°C (+14°F to 104°F)

Sealing

Sealed to IP54 (NEMA 4)

Physical

Size: 300 x 170 x 140 mm (11.8” x 6.7” x 5.5”)
Weight: 3 kg (6.6lb)

For further general specification and functionality details refer to the standard DPI
610/615 Series Portable Calibrator data sheet.

Introduction 1
Pneumatic Controls 2
Electical Connections 2
Operation 3

Altitude Switch Tests 3
Altitude Leak Tests 6
Airspeed Switch Tests 8
Airspeed Leak Tests 10

K0237 Issue No. 2 ii

Contents

Introduction (Figure C1)

This 2 bar absolute (59 inHg absolute) version of the DPI 610 provides manual generation
of pressure and vacuum for testing of aircraft Pitot and Static systems. It has a special
pneumatic manifold and output port assembly, the regulated output of the hand-pump
prevents overpressure/vacuum of the aircraft’s Pitot and Static systems.
The generated pressure or vacuum vents to atmosphere through the vent port, the user
controls the vent rate to protect the aircraft’s systems and instruments using the release
valve.
A manual let-down valve, fitted directly in the output port, allows the system to be
manually vented (returned to ground level) by the user when the pressure or vacuum has
vented to a safe operational level i.e. < 1500 ft. The aeronautical option (AERO) can be
accessed only from the TASK menu. All other functions and tasks of the DPI 610 are
available on this version of the DPI 610 instrument.

Electrical (switch)
inputs

Manual let-down

Output port (AN4)
To pitot or static
system

valve

Fine adjustment of

either positive (pitot)
or negative (static)
pressure

Selects either

or negative (static) pressure

Hand-pump
Generates either positive (pitot)
or negative (static) pressure

Release Valve
Releases system pressure/vacuum
at a controlled rate

Vent port

positive (pitot)

Figure C1 Aeronautical Option Controls

1 K0237 Issue No. 2

Pneumatic Controls (Figure C2)

An AN4 connector provides the output connection.

Note:

The instrument is designed to operate with 5 metres of 6mm bore pipe attached.

CLOSE

OPEN

Figure C2 - Pneumatic Controls

Electrical Connections

Refer to publication K0415 pages 6 and 7 for the fitting of batteries and the charging of
batteries.

Maximum Instrument Ratings

The following table shows the maximum measurement ratings of the standard
instrument that should not be exceeded. Pressure over range (120% of FS) is indicated
by a flashing pressure display. Voltage or current over range (110% of max) causes
either the voltage or current display to flash.

Note:

When the AERO task is selected, the display flashes if the voltage or current input over
ranges by 110% of the above maximum values. The pressure display flashes at altitudes
below -3000 ft and above 50,000 ft or at airspeeds greater than 600 knots, depending on
the mode selected.

K0237 Issue No. 2 2