PTX/PMP 3000 series
Amplified Aerospace Pressure Transducers
Features• Full EMI and lightning protection• High accuracy and stability• Wide operating temperature range• Affordable solution with low technical risk
• Gauge, absolute, and differential versions
Our PTX/PMP3000 series has been the platform of choice,serving the Aerospace industry for the past 20 years. These
products have been rigorously tested and qualified for use
on a multitude of applications including: Hydraulic / ECS/ APU / Engine / Landing Gear / Braking and others. This
product range is tried and tested, used within the worlds
most popular single aisle and twin aisle airframes.
Quality and reliability is at the heart of everything that we doat Druck, these fielded products provide our customers andend users with reliability and peace of mind.

At the heart of the 3000 series is an advanced high stability
pressure sensing element, micro-machined from single crystal
silicon in Druck’s own Class 100 processing facility. Resistors are
diffused into the silicon diaphragm by ion implantation that forms
a fully active four-arm strain gauge bridge. Single crystal silicon isperfectly elastic and has excellent mechanical properties.
Druck technology offers the following features:• Excellent linearity• Negligible hysteresis• Enhanced long-term stability• High overpressure capability• Low mass offering fast response and low ‘g’ effect
The micro-machined silicon sensing element is atomicallybonded to a glass base and assembled into a high integrity
glass-to-metal seal. Pressure media is isolated from thesilicon element by a compliant metal diaphragm, resulting ina hermetic pressure module.

Every pressure module is temperature cycled to enhancelong-term stability prior to installation of surface mountsignal conditioning electronics. The electronics control
and regulate the supply voltage to the strain gauge bridgeand provide a high level output proportional to the appliedpressure. Temperature signals, taken directly from the siliconsensing element, allow the bridge output to be corrected
for changes in balance and sensitivity due to temperaturechange.
Integral protection circuitry includes an array of in-line filters,
providing a low impedance path to case at high frequencies.
All supply lines are protected against reverse polarity andsignal lines against high voltage transients, resulting incompliance with stringent EMI and lightning requirements.

The pressure sensing module and electronics are housed
within the case assembly which, together with pressure andelectrical connectors, is fully welded to ensure high reliability.
All wetted and external surfaces are manufactured fromstainless steel. Prior to acceptance testing, all transducers
are environmentally stress screened to optimize long-term
performance and to remove premature failures.
Flexibility of design is maintained without compromisingcustomer choice of interface, pressure range and output
type. The PMP/PTX 3000 series is flight qualified to theenvironmental requirements of RTCA DO-160. It meets thedemands of even the harshest environment and offers anaffordable measurement solution with minimal technical risk.

PTX/PMP 3000
specifications
Performance

Differential Version

Input parameters

Gauge and absolute

Differential

Pressure range

5 psi to 5076 psi(0.34 bar to 350 bar)

5 psi to 500 psi(0.34 bar to 34 bar)

Other engineering
units can bespecified.

Static pressure to 1000 psi(69 bar)

Proof pressure 1

2X range to 15,000 psi (1034 bar) maximum

Burst pressure

6X minimum to20,000 psi (1379 bar)maximum

6X minimum (2X minimum
to 300 psi (21 bar) maximum
in negative direction)Line pressure—1000 psi (69 bar)

Positive pressure
media

Fluids and gases compatible with 316L stainless steel

Negative pressure
media

—

Supply voltage2
Resolution

Stainless steel 316L, glass,silicon and structural
adhesive

Gauge or sealed gauge/absolute version

Electrical connector pin allocations(others available, please specify)
Two-wire function
connector:

Three-wire function
connector:

Four-wire function
connector:

Aircraft 28 VDC

Supply + A/1

Output + A/1

Output + A/1

Infinite

Supply - B/2

Common B/2

Output - B/2

Supply + D/4

Supply - C/3

Output parameters
4 to 20 mA (two-wire)

Outputconfiguration1

0 to 5 VDC (three-wire)
0 to 5 VDC (four-wire)
0 to 5 VDC (four-wire) unbalanced output
Others available on request, e.g. 0 to 10 V, 1 to 6 V

Output impedanceLess than 20 Ω (PMP model)

Total accuracy
includes theeffects of nonlinearity, hysteresis,
repeatability, zeroand span setting
and thermal errors±0.75% full scale (FS) over -40ºF to 190ºF(-40°C to 90°C)

Stability

Typically less than ±0.05% FS/annum

1or±1.25% FS over -65ºF to 257ºF(-54°C to 125°C)

Interface parameters
Pressure connection

7/16 in (11.17 mm) UNJF to MS 33656-4
Others available on request

Electrical connection

6 pin plug to MIL-C-26482 Others available on request

Supply + D/4

Installation drawings - dimensions in inches
Environmental parameters

Gauge and absolute

Operating temperature range-65ºF to 275ºF (-54°C to 135°C)

Differential

Compensated temperature
range

See total accuracy

Storage temperature range-65ºF to 300ºF (-54°C to 150°C)

WeightLess than 0.35 lb(5.6 oz)

Altitude, humidity, salt,fog, sand and dust, fungus
resistance, explosion-proof

Not susceptible due to all welded hermetic
construction

Acceleration, vibration andmechanical shock

Qualified to RTCA/DO-160D

EMI, power supply andlightning

Fully protected and qualified to RTCA/DO160D

High/low operating
temperature

Qualified to RTCA/DO-160D

Fire resistance

Qualified to 2,000ºF (1,100°C) flame for 15
minutes

Predicted reliability(MIL-HDBK-217F)

5 FPMH achievable - refer to Baker HughesLess than 0.53 lb(8.5 oz)

1. Tested as part of the Acceptance Test Procedure (ATP)2. Qualified in accordance with the requirements of RTCA/DO-160D, section
16 category B
Continuing development sometimes necessitates specification changes
without notice.

PTX/PMP 3000
specifications

Calibration standards

Related products

Ordering information

Transducers manufactured by Druck are calibrated against
precision pressure calibration equipment, which is traceable
to international standards.

We manufacture a comprehensive range of pressure
sensors, indicators, calibrators, controllers and Air Data Test
Systems. With our range of portable calibrators covering
temperature and electrical parameters.
Refer to manufacturer for further information and data
sheets.

Please state the following:
1. Select model number
2. Pressure range and units
3. Gauge, sealed gauge or absolute
4. Output level (PMP model), e.g. 0 to 10 V
5. Pressure connection (include negative side fordifferential)
6. Calibrated temperature range
7. Mating electrical connector (if required)

3700 Series

Druck Air Data Test Sets (ADTS)PDCR300

UNIK 5000

ADROIT6000

CodePMPPTX																																																									PACE 6000

Warning – Do not use with media that has an oxygen
concentration >21% or other strong oxidising agents.

PMPBasic Type Number
High level voltage output
4 to 20 mA current
Code
Pressure Reference
30Gauge, sealed gauge or absolute
31
Differential
CodeElectrical Connection
06 PIN D38999/25YB98PN
16 PIN D38999/25YA35PN
26 PIN MIL-C-26482 series 1 shell size 10
36 PIN MIL-C-26482 series 2 shell size 10
44 PIN MIL-C-26482 series 1 shell size 8
55 PIN MIL-C-83723 shell size 10
6other, please specify
CodeOutput
0two-wire (PTX only) 4 to 20 mA
1
three-wire 0.5 to 5 V
2four-wire 0 to 5 V
3four-wire common 0 to 5 V
4four-wire 0 to 5 V(Pins B and C Linked internally)5
three-wire 0 to 5 V
6three-wire 1 to 10 V
7four-wire 0 to 10 V
8four-wire common 0 to 10 V
9four-wire 0 to 10 V (Pins B and C
linked internally)
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Typical model numberThis product contains materials or fluids that may degrade
or combust in the presence of strong oxidising agents.
This product is designed to be used in flight qualified applications and flight safe instrumentation, use outside this application
is not covered by Druck and the End user/installer is responsible for compliance to all local Laws and Regulations.

Copyright 2024 Baker Hughes Company. All rights reserved.

920-281E
BHCS38657 (09/2024)

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