a Baker Hughes business

Accuracy
under pressure
Hydrology data you can rely on

druck.com

Druck’s product range embodies over 45 years of experience designingand manufacturing some of the most accurate and reliable pressure
measurement solutions on the market.
Druck’s pressure technologies provide
peace of mind that you are getting thereliable data that you need, to make theright decisions to keep your business andequipment running efficiently.

Built for accuracy
and precision, Druck’spressure sensors provide
peace of mind in thetoughest environments

We are one of the only sensor manufacturers
to make the silicon sensing element in‑houseat our multi-million dollar clean room facility
in the UK. As a result, we are able to ensure thehighest quality and performance in delivering
world class, highly accurate pressure sensors.
Monitoring the quality and quantity of surface
and ground water can be categorised into
three key areas:

Natural water monitoring
The natural water environment is both hostile andremote. Reliability is critical to quality data collection,
particularly when power is in short supply and service
is expensive.

Drinking waterHigh quality drinking water is a valuable resource.
Managing this essential asset requires precision
instrumentation across the entirety of the drinking
water network.

Waste water management
In waste water management you must haveconfidence in the durability of your instrumentation.
When faced with unpredictable content and achallenging environment, robust construction is key
for reliable data collection.
Since 1972, Druck products have successfully applied
technological innovation and application focus toa diverse and demanding world of pressure. Our
sensor technology has been developed to support
some of the most rigorous, challenging and precise
applications, making it highly suited for thesehydrology applications.

3Challenges innatural water monitoring
Lightning strikes

Extreme temperatures

No line of sight

Very remote andhostile environments

Salt corrosion
Narrow bore wells

Vandalism
Independent power
supply required

Difficult to access areas for
installation, repair and calibration

Shallow water or
dry river beds
Surface debris
and foaming

Underwater debris

Large changes
in depth

Silting45

Solutions innatural water monitoring
All our components are designed and built to performin the most hostile of environments.

Difficult installation sites

Natural water
monitoringchallenges• Surface debris and foaming

Hostile Environments• Independent power supply required• Silting	Piezo resistive sensing elements and analogue
electronics enable pulse power operation withreadings taken in as little as 10 ms. This significantly
reduces energy consumption. Voltage outputs
reduce current consumptions to a few mA and in
short cable run applications, mV output sensors
reduce the power on time and current consumption
even more. SDI‑12 digital electronics use a standby
mode and fast read cycles to keep sensor use toa minimum. This minimises the requirements for
expensive batteries or solar chargers.
• Difficult to access for repair or calibration	High stability silicon sensing elements in robust
packaging ensures accurate and reliable
performance over long periods. This minimises theneed to visit sites for the repair of faulty components
and extends the periods between routine
visits for calibration.	The risk of silting is reduced by connecting thepressure sensing element to the media through acarefully designed pressure port. Soft nose conesboth protect the sensing element from physicalshock damage and are easily removed allowing
access to the open face connectors, which enablegentle cleaning in extreme circumstances.
• Debris	Fully welded construction in high quality materials,
injection moulded to the thick cable sheathing,ensure both the highest IP rating and reduce the riskof damage from debris moving in turbulent and fast
moving water.
• Extreme temperatures	The use of high-quality electronic components allow
options to accurately measure temperature ranges
from -40c to +125c• Salt corrosion	Titanium construction can give you confidence inthe long and reliable operation of our sensors in salt
water environments, while many years of corrosion
free service minimise expensive site visits.
• Lightning strikes	By building lightning surge arrestors into thesensor (on the electronics end of the inductanceand capacitance of the cable) the best protection
in lightning affected areas can be offered. This
helps to ensure the longest possible life in the field,
thereby lowering the cost of ownership.

UNIK
5000

DPS
8000
(TERPS)

DPS
5000
I²C

DPS
5000
SDI 12

Low power	By measuring the pressure at depth in order tocalculate level, Druck pressure based level sensors
are immune from incorrect readings caused bysurface debris or foaming that will cause errors inline of sight based devices like ultrasonic or radar.

Long service interval
Silting
DebrisExtremetemperatures• Narrow bore wells

Remote applications

1800
seriesSalt corrosion	With a sensor diameter as small as 17.5mm, units
can be deployed in narrow wells reducing drilling
costs. Cable in all models incorporates a Kevlar
core which provides strength to allow long cable
drops and minimises cable extension under loading.
Accessories, link sink weights and cable clamping
mechanisms, have been designed to makeinstallation easy and ensure maximum life.

Lightning
Surface debris
and foaming
Narrow bore wells
No line of sight
Shallow water
Wide variationof depth
Vandalism• No line of sight	Sloping banks and obstructions like trees make somesites very difficult for line of sight methods. Pressure
sensors can be installed in the deepest part of ariver with an unobtrusive cable to bring the level
information back to instrumentation.

Options are available to address this challenge	This product has a feature specifically designed toaddress this challenge
Silicon sensing element
High stability siliconsensing elements in robust
packaging ensure accurate
and reliable performanceover long periods.

• Shallow water or dry river beds	Large silicon sensing elements make it possible tomeasure depths as shallow as 0.7mm accurately.
This makes accurate level measurement in V notch
flow meters possible, where small changes in thewater level results in a large change in flow.
• Vandalism	Using pressure to measure level is unobtrusive,with much of the equipment hidden underwater.
This reduces the instances of installation being
damaged by acts of vandalism.

Pressure port
The risk of silting is reduced byconnecting the pressure sensing
element to the media through acarefully designed pressure port.

Silicon sensing element
Large silicon sensing
elements make it possible
to measure depths as shallow
as 0.7m accurately.

Piezo resistive
sensing element
Analogue electronics enable
pulsed operation to reduce
power consumption.

Thick cable sheathing
Robust injection moulded
construction ensures both thehighest IP rating and reduced
risk of debris damage.

[ Reliability when you need it most ]67

Challenges indrinking water

Needed in remote,inaccessible locations

Limited spaces
in bore holes

Compatibility withtreatment chemicals
Difficult to access forrepair or calibration

Used across large
surface areas

Monitoring subtle changes
over long periods of time89Solutions indrinking water

Drinking water
monitoring
challenges

1800
series

UNIK
5000

DPS
8000
(TERPS)

DPS
5000
I²C

DPS
5000
SDI 12

Narrow bore wells

Each one of our components is designed andbuilt for reliability at every stage of the cycle.

Highest accuracy
Low power
Long service
intervals
Subtle changes overlong timeMedia compatibility	17.5mm diameter construction reduces the size ofbore holes required minimising drilling costs forwater extraction. The stiffness of titanium allows
narrow body construction without compromising
performance or stability. High quality screened cableand 4-20 mA signals are mechanically robust andimmune from electro-magnetic interference fromelectric motors on pumps.
• Large surface areas require the highest levelsof accuracy	Many new dam constructions have shallow
slopes making vertical line of sight technology
very expensive to install. TERPS technology allows
accurate measurements better than 0.01% (1mmin 10m depth) to allow the most efficient resource
management of reservoirs. Digital compensationin our DPS5000 products provides high accuracy
when temperatures change.

Differential
measurements• Monitor subtle changes over long periods of time	Excellent long term stability allows drinking water
systems to be accurately monitored. This enables
small changes in pressure profiles, caused byleakage, to be quickly seen and located. This canbe used to reduce leakage and repair costs.
• Compatibility with treatment chemicals	Titanium and stainless steel construction married
to cables made of polyurethane or Hytrel enable
the best materials to be selected for compatibility
with water treatment chemicals. This becomes
particularly important in dosing stations or storage
tanks where the concentrations can be high.
• Difficult to access for repair or calibration	High stability silicon sensing elements in robust
packaging ensures accurate and reliable
performance over long periods. Accordingly, thisminimises the need to visit sites for repair of faulty
components and extends the periods between
routine visits for calibration.

Options are available to address this challenge	This product has a feature specifically designed toaddress this challenge

Trench Etched Resonant Pressure Sensor: TERPS

Typical stability performance for UNIK5000, DPS5000 SDI-12 and 1800 series%FS• Limited space in bore holes

0.10000.09000.08000.07000.06000.05000.04000.03000.02000.01000.0000
0200

400

600

800

1000

1200Days• Inaccessible locations, inspection chambers	Small size, fully welded construction and IP68 to700m cable connections mean that Druck products
give reliable operation in sub surface applications
that are prone to flooding. Particularly usefulis this feature in differential sensors for use onfilters or valves.

Differential UNIK5000 Series
IP68 versions available.

1830 Series Druck High Performance Level
Pressure Sensors
The latest generation of fully submersible
titanium high performance sensors formeasurement of hydrostatic liquid levels.

[ Precision with every drop ]1011

Challenges inwaste water management

Blocked line of sightand surface foaming

Difficult to access forrepair or calibration

Used in areas oflow pressure

Silting

Extreme temperatures

Explosive atmospheres

No power available
May come into contact withviolently moving debris

1213

Solutions in
waste water management
All our components are designed and built for stability,
no matter what the conditions.

• Explosive atmospheres	Waste water can release explosive methane.
This means that many chambers are designated ashazardous areas. Products used in these areas need
to be certified as safe for use. Druck pressure sensor
products carry a wide range of certifications for usein such areas allowing installation using different
safety rules to suit the application and validity inmost countries around the world.
• Blocked line of sight and surface foaming• Contact with violently moving debris	Our products are designed to be robust in what
can be a violent application where waste can carryheavy objects which can damage level sensors.
Features to cope with this environment include:• Fully welded construction in stiff titanium or toughstainless steel• Injection moulding of the electrical cable to thesensor body ensures the IP68 rating is maintained,
guaranteeing the integrity of the sensors• Thick cable walls made of tough polyurethane or
stiff chemically robust Hytrel• Kevlar cable core supply strength – preventing
cable stretching.
• Unknown chemicals	Titanium or stainless steel metal work withpolyurethane or Hytrel cable can be chosen
to reduce the risk of chemical corrosion
damaging sensors.

• Silting	The risk of silting is reduced by connecting thepressure sensing element to the media through acarefully designed pressure port. Soft nose cones
both protect the sensing element from physicalshock damage and are easily removed, allowing
access to the open face connectors that enablegentle cleaning in extreme circumstances.
• No power available	Piezo resistive sensing elements and analogue
electronics enable pulse power operation, withreadings taken in as little as 10 ms. This significantly
reduces energy consumption. Voltage outputs
reduce current consumptions to a few mA
and in short cable run applications, mV output
sensors reduce the power on time and current
consumption even more, which, in turn, minimises
the requirements for expensive batteries orsolar chargers. Digital electronics use low power
standby mode and read cycles to reduce totalenergy requirements.	By measuring the pressure at depth in order tocalculate level, Druck pressure-based level sensors
are immune from incorrect readings caused byobstruction in tanks or chambers as well as surface
debris or foaming that will cause errors in line ofsight based devices in ultrasonics or radar.

Waste water
management
challenges

1800
series

UNIK
5000

DPS
8000
(TERPS)

DPS
5000
I²C

DPS
5000
SDI 12

DebrisUnknown chemicals
Low power
Shallow depths
Explosiveatmospheres
Options are available to address this challenge	This product has a feature specifically designed to address
this challenge• Used in areas of low pressure	Many waste water applications are in shallow
drains where the level of water in normal conditions
is very low. Druck pressure sensors use siliconsensing elements made in our own clean room.
In order to enable highly sensitive low pressure
measurement, particularly in large surface
areas, thin elements are used. This makes it possible
to measure pressures with a full scale reading as
low as 0.7 mH2O (70 mbar, 1psi).

1830 nose cone
Designed to operate in highsilting environments.

Electronics
Analogue electronics enable
pulsed operation to reduce
power consumption.

Media compatibility
Choice of polyurethaneor Hytrel cable.

Depth cable
Moulded directly tothe sensor body to giveType 6/IP68 rating forpermanent immersion.

[ Providing performance against all odds ]
1415

Our
products

Productselection guidePlease use the guide below to help you locate the ideal
product for your application needs.
Natural water monitoring challenges

1800 series

UNIK5000DPS8000 (TERPS)

DPS5000 I²C

DPS5000 SDI 121800 series

UNIK5000

DPS8000 (TERPS)

DPS5000 I²C

DPS5000 SDI 121800 series

UNIK5000

DPS8000 (TERPS)

DPS5000 I²C

DPS5000 SDI 12

Low power
Long service interval
Silting

1800 Series

UNIK5000 Series

DPS8000 (TERPS)

Pressure Range:from 70 mbar (1 psi) to 700 bar (10000 psi)

Pressure Range:from 70 mbar (1 psi) to 700 bar (10000 psi)

Pressure Range:
2 bar (30 psi) to 200 bar (3000 psi).

Extreme temperatures

Accuracy: to 0.06%

Accuracy:
to 0.04% Full Scale (FS) Best Straight Line (BSL)High Precision:+0.01% FS over compensatedtemperature range

Lightning

Fully welded 17.5mm titanium construction
Integral lightning surge arrestor option

Frequency Response: to 3.5 kHz

Polyurethane and hydrocarbon
resistant cables

High over pressure capability

Full range of installation accessories

Full range of installation accessories

Hazardous Area certifications
mV, mA, voltage and configurable
voltage outputs
Multiple electrical & pressureconnector options
Operating Temperature Range:from -55 to 125C (-67 to 257F)

High Stability: +100 ppm FS/year
Designed with TERPS technology
Welded 316L construction

DebrisSalt corrosion

Surface debris and foaming
Narrow bore wells
No line of sight
Shallow water
Wide variation of depth
Vandalism

Drinking water monitoring challenges
Narrow bore wells
Highest accuracy
Low power
Long service intervals
Subtle changes over long timeMedia compatibility
Differential measurements

DPS5000 I²C

DPS5000 SDI-12

Pressure Range: from 70 mbar to 100 bar

Pressure Range: from 700 mbar to 100 bar

Accuracy: to 0.1% FS

Accuracy: +0.1% FS

Stainless steel construction

Stainless steel or Titanium construction

3V supply voltage

Operating Temperature Range: -40C to 80C

Low power

Low power

I²C Digital Bus Output

Customer set filter setting

Sleep/Standby mode

Excellent long-term stability

Waste water management challenges
DebrisUnknown chemicals
Low power
Shallow depths
Explosive atmospheres

Options are available to address this challengeThis product has a feature specifically designed to address this challenge

Hazardous area certifications
Excellent long-term stability

Full product datasheets are available from our website: www.druck.com
For further information and detailed product selection please contact your local Druck representative.
1617Global manufacturing
excellence
Our pressure solutions are manufactured in the UK, Norwayand China to enable us to get closer to our customers.
Each facility is ISO9001 accredited and AS9100 for ouraerospace business and operates under Druck’s strict
quality‑control procedures. We continue to invest inadvanced manufacturing techniques and processes thatkeep us at the forefront of product quality and efficiency.

Measurement & sensing

State-of-the-art silicon clean room

What started as a small business in Leicester, UKin 1972 has now grown into a global pressuremeasurement business that is recognised as a world
leader in manufacturing high-quality and highaccuracy piezo‑resistive pressure sensors. We servea wide range of applications from Aerospace, Subsea,
Test and Calibration and Industrial Applications withcustomers in over 70 countries. This is due to the fact
we process the raw silicon right through to the final
product. Over the past 40+ years we have developed
world-class expertise in producing high-performance,high-stability, fast‑responding and high-qualitypressure sensors.

The heart of all of our pressure sensing solutions is
the sensing element, which is manufactured fromsilicon wafers in our state-of-the-art clean room
facility in Leicester, UK. It was completely refurbishedin 2015 and is now able to process over 260 versionsof silicon 24/7. Advanced robotics have more thantripled the efficiency of the silicon processing,leading to better quality and higher yields

Brilliant factory
We are proud that our Leicester facility has
been named as a Baker Hughes Brilliant Factory,
linking data-sources across the factory to enable
us to continually improve and control ourmanufacturing processes.

18Innovation
Druck are leading innovators in pressure sensing andcalibration. We are constantly pushing new frontiersand setting new benchmarks in performance. Throughour expertise in silicon processing we have developed
our Trench Etched Resonant Pressure Sensor (TERPS)
technology which delivers unprecedented accuracy
and stability. Our customer-focused approach to
product development, ensures that we drive to makeyour life easier and more productive.

19

We are a global technology company that designs,
develops and manufactures the highest quality,
most accurate and reliable customized pressure
sensing devices and instruments, software andservices. We leverage innovation, continuous
improvement and unprecedented quality, to enable
our Customers to successfully operate, produce
systems, monitor and/or control mission-criticalassets in tough environments across the world’s
most challenging applications.
We delight customers with tailored solutions that
address their challenges; embodying our deep
domain knowledge of customers’ applications, themost innovative and high performance connectedpressure sensing devices, instruments, software andservices; produced with the highest standards ofsafety, quality and delivery.
We are Druck. We provide peace of mind
in the toughest environments.

Contact us

For more information please contact yourlocal Druck representative, or visit:
druck.com© Copyright 2020. Baker Hughes Company. This material contains
one or more registered trademarks of Baker Hughes Company andits subsidiaries in one or more countries. All third-party productand company names are trademarks of their respective holders.
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