Dewetron DW2-UPS-250-DC Product manual

TECHNICAL REFERENCE MANUAL
DW2-UPS-250-DC
WELCOME TO
THE WORLD OF
DEWETRON!
Congratulations on your new device! It
will supply you with accurate, complete
and reproducible measurement results
for your decision making.
Look forward to the easy handling and
the flexible and modular use of your
DEWETRON product and draw upon
more than 25 years of DEWETRON
expertise in measurement engineering.
ISO9001
EN ISO 14001
THE MEASURABLE DIFFERENCE.

Copyright © DEWETRON GmbH
This document contains informaon which is protected by copyright. All rights are reserved. Reproducon,
adaptaon, or translaon without prior wrien permission is prohibited, except as allowed under the copyright
laws.
All trademarks and registered trademarks are acknowledged to be the property of their owners.

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450160 • DW2-UPS-250-DC • Technical Reference Manual • Prinng version 1.0.2 • March 09, 2020
PREFACE
Thank you!
Thank you very much for your investment in DEWETRON's unique data acquisition systems. These are top-quality
instruments which are designed to provide you years of reliable service. This guide has been prepared to help you
get the most from your investment, starting from the day you take it out of the box, and extending for years into the
future.
This guide includes important startup notes, as well as safety notes and information about keeping your DEWETRON
system in good working condition over time.
We strongly suggest that you read this entire manual, especially the safety and care sections, as well as to avoid
damaging your DEWETRON system.
What is the DW2-UPS-250-DC?
The DW2-UPS-250-DC is an external UPS and multi-battery charger with an isolated DC input for DEWE2 instruments,
delivering a total output power of 250 W. The DW2-UPS-250-DC is mechanically compatible with DEWE2-A4/M4 but
for flexible use, there are longer cables available.
The DW2-UPS-250-DC comes with 3 x 89 Wh batteries as well as an external 115 / 230 VAC adaptor for charging the
batteries.

4
PREFACE
Notes

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450160 • DW2-UPS-250-DC • Technical Reference Manual • Prinng version 1.0.2 • March 09, 2020
TABLE OF CONTENT
Content
General Informaon, Safety Instrucons 7
Training ……………………………………………………………………………………………………………………………… 7
Calibraon ………………………………………………………………………………………………………………………… 7
Support ……………………………………………………………………………………………………………………………… 7
Service/repairs …………………………………………………………………………………………………………………… 7
Warranty Informaon ………………………………………………………………………………………………………… 8
Prinng History …………………………………………………………………………………………………………………… 8
Safety convenons ……………………………………………………………………………………………………………… 9
General safety and hazard warnings for all DEWETRON systems ………………………………………… 10
Maintenance ……………………………………………………………………………………………………………………… 13
Environmental Consideraons …………………………………………………………………………………………… 14
DW2-UPS-250-DC 15
DW2-UPS-250-DC - external UPS ………………………………………………………………………………………… 15
System specicaons ………………………………………………………………………………………………………… 15
Dimensions ………………………………………………………………………………………………………………………… 16
DW2-UPS-250-DC at a glance ……………………………………………………………………………………………… 17
Power supply ……………………………………………………………………………………………………………………… 22
Modes of operaon …………………………………………………………………………………………………………… 25
Smart baery packs …………………………………………………………………………………………………………… 27
External baery charger (oponal)……………………………………………………………………………………… 28
Assembly instrucon (DEWE2/DEWE3-A4/M4)…………………………………………………………………… 29
Assembly instrucon (TRIONet) ………………………………………………………………………………………… 29
Accessories ………………………………………………………………………………………………………………………… 31
CE-Cercate of conformity C1

6
TABLE OF CONTENT

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450160 • DW2-UPS-250-DC • Technical Reference Manual • Prinng version 1.0.2 • March 09, 2020
Training
DEWETRON offers training at various offices around the world several times each year. DEWETRON headquaters
in Austria have a very large and professional conference and seminar center, where training classes are conducted
on a regular basis starting with sensors and signal conditioning, A/D technology and software operation. For more
information about training services, please visit:
http://www.dewetron.com/services/dewetron-academy/
Dewetron Inc. in the USA also has a dedicated training facility connected to its headquarters, located in Rhode Island.
For more information about training services in the US, please visit:
http://www.dewetron.us/service-support/system-training-usa/
Calibration
Every instrument needs to be calibrated at regular intervals. The standard norm across nearly every industry is
annual calibration. Before your DEWETRON data acquisition system is delivered, it is calibrated at our DEWETRON
headquater. Each of this system is delivered with a certificate of compliance with our published specifications.
Detailed calibration reports from our calibration system are available for purchase with each order. We retain them
for at least one year, so calibration reports can be purchased for up to one year after your system was delivered.
Support
DEWETRON has a team of people ready to assist you if you have any questions or any technical difficulties regarding
the system. For any support please contact your local distributor first or DEWETRON directly.
For Asia and Europe, please contact: For the Americas, please contact:
DEWETRON GmbH DEWETRON, Inc. (HQ USA)
Parkring 4 2850 South County Trail, Unit 1
8074 Grambach East Greenwich, RI 02818
AUSTRIA U.S.A.
Tel.: [phone] Tel.: [phone]
Fax: [phone] Toll-free: [phone]
Email: [email protected] Fax: [phone]
Web: http://www.dewetron.com Email: [email protected]
Web: http://www.dewetron.us
The telephone hotline is available The telephone hotline is available
Monday to Friday between Monday to Friday between
08:00 and 17:00 CET (GMT +1:00) 08:00 and 4:30 EST
Service/repairs
Only the team of DEWETRON is allowed to perform any kinds of repairs to your system to assure a safe and proper
operation in future. For information regarding service and repairs please contact your local distributor first or
DEWETRON directly.
Any spare parts (screws, backplanes, cables,...) must be obtained from DEWETRON only.
SERVICES
General Information, Safety Instructions
!

8
The information contained in this document is subject to change without notice.
DEWETRON GmbH (DEWETRON) shall not be liable for any errors contained in this document. DEWETRON MAKES
NO WARRANTIES OF ANY KIND WITH REGARD TO THIS DOCUMENT, WHETHER EXPRESS OR IMPLIED. DEWETRON
SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. DEWETRON shall not be liable for any direct, indirect, special, incidental, or consequential damages,
whether based on contract, tort, or any other legal theory, in connection with the furnishing of this document or the
use of the information in this document.
Warranty Information
A copy of the specific warranty terms applicable to your DEWETRON product and replacement parts can be obtained
from your local sales and service office.
Restricted Rights Legend
Use austrian law for duplication or disclosure.
DEWETRON GmbH
Parkring 4
A-8074 Grambach / Austria
TRION™ is a trademark of DEWETRON GmbH.
Any other trademarks and registered trademarks are acknowledged to be the property of their owners.
Printing History
Please refer to the page bottom for printing version.
Copyright © DEWETRON GmbH.
This document contains information which is protected by copyright. All rights are reserved. Reproduction,
adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws.
NOTICE

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450160 • DW2-UPS-250-DC • Technical Reference Manual • Prinng version 1.0.2 • March 09, 2020
Safety conventions
Observe precautions for handling electrostatic sensitive devices!
!
This icon denotes a caution, which advises you of precautions to take to avoid injury, data
loss, or a system crash. When this symbol is marked on the product, refer to the technical
reference manual.
Indicates hazardous voltages.
Indicates the chassis terminal
WARNING Calls attention to a procedure, practice, or condition that could cause bodily
injury or death.
CAUTION Calls attention to a procedure, practice, or condition that could possibly cause
damage to equipment or permanent loss of data.
WARNINGS
The following general safety precautions must be observed during all phases of operation, service, and
repair of this product. Failure to comply with these precautions or with specic warnings elsewhere in this
manual violates safety standards of design, manufacture, and intended use of the product. DEWETRON
GmbH assumes no liability for the customer’s failure to comply with these requirements.
SAFETY CONVENTIONS

10
SAFETY INSTRUCTIONS
Your safety is our primary concern! Please be safe!
> Use this system under the terms of the specifications only to avoid any possible danger. If the unit is used
in a manner not specified by the manufacturer the protection can be impaired!
> Ths product is intended for use in industrial locations. As a result, this product may cause interference
if used in residential areas. Such use must be avoided unless the user takes special measures to reduce
electromagnetic emissions to prevent interferences to the reception of radio and television broadcasts.
> Maintenance will be executed by qualified staff only.
> During the use of the system, it might be possible to access another parts of a more comprehensive
system. Please read and follow the safety instructions provided in the manuals of all other components
regarding warning and security advices for using the system.
> With this product, only use the power cable delivered or defined for the host country.
> DO NOT connect or disconnect sensors, probes or test leads, as these parts are connected to a voltage
supply unit.
> The system is grounded via a protective conductor in the power supply cord. To avoid electric shocks,
the protective conductor has to be connected with the ground of the power network. Before connecting the input
or output connectors of the system, make sure that there is a proper grounding to guarantee
potential free usage. For countries, in which there is no proper grounding, please refere to your local
legally safety regulations for safety use.
DC systems: Every DC system has a grounding connected to the chassis (yellow/green safety banana
plug).
> Please note the characteristics and indicators on the system to avoid fire or electric shocks. Before
connecting the system, please carefully read the corresponding specifications in the product manual.
> The inputs are not, unless otherwise noted (CATx identification), for connecting to the main circuits of
category II, III and IV. The measurement category can be adjusted depending on module configuration.
> The power cord separates the system from the power supply. Do not block the power cord, since it has to
be accessible for the users.
> Supply overvoltage category is II.
> DO NOT use the system if equipment covers or shields are removed.
> If you assume the system is damaged, get it examined by authorised personnel only.
> Any use in wet rooms, outdoors or in adverse environmental condition is not allowed!
Adverse environmental conditions are:
> Moisture or high humidity
> Dust, flammable gases, fumes or dissolver
> Thunderstorm or thunderstorm conditions (except assembly PNA)
> Electrostatic fields, et cetera.
> Any direct voltage output is protected with a fuse against short cut and reverse-polarity, but is NOT
galvanically isolated (except it is explicit marked on the system).
> The system must be connected and operated to an earthed wall socket at the AC mains power supply
only (except for DC systems).
> Any other use than described above may damage your system and is attended with dangers like shortcut,
fire or electric shocks.
!
General safety and hazard warnings for all DEWETRON systems

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450160 • DW2-UPS-250-DC • Technical Reference Manual • Prinng version 1.0.2 • March 09, 2020
> The whole system must not be changed, rebuilt or opened (except for changing TRION™ modules).
> If you assume a more riskless use is not provided anymore, the system has to be rendered inoperative
and should be protected against inadvertent operation. It is assumed that a more riskless operation is not
possible anymore, if
> the system is damaged obviously or causes strange noises.
> the system does not work anymore.
> the system has been exposed to long storage in adverse environmental.
> the system has been exposed to heavy shipment strain.
> DO NOT touch any exposed connectors or components if they are live wired. The use of metal bare wires
is not allowed. There is a risk of short cut and fire hazard!
> Warranty void if damages caused by disregarding this manual. For consequential damages NO liability
will be assumed!
> Warranty void if damages to property or persons caused by improper use or disregarding the safety
instructions.
> Unauthorized changing or rebuilding the system is prohibited due to safety and permission reasons (CE).
Exception: changing TRION™ modules.
> The assembly of the system is equivalent to protection class I. For power supply, only the correct power
socket of the public power supply must be used, except the system is DC powered.
> Be careful with voltages >25 VAC or >35 VDC! These voltages are already high enough in order to get a
perilous electric shock by touching the wiring.
> Maximum input voltage for measuring cards are 70 VDC and 46.7 VPEAK
> The product heats during operation. Make sure there is adequate ventilation. Ventilation slots must not
covered!
> Only fuses of the specified type and nominal current may be used. The use of patched fuses is
prohibited.
> Prevent using metal bare wires! Risk of short cut and fire hazard!
> DO NOT use the system before, during or shortly after a thunderstorm (risk of lightning and high energy
overvoltage). An advanced range of application under certain conditions is allowed with therefore
designed products only. For details please refer to the specifications.
> Make sure that your hands, shoes, clothes, the floor, the system or measuring leads, integrated curcuits
and so on, are dry.
> DO NOT use the system in rooms with flammable gases, fumes or dust or in adverse environmental
conditions.
> Avoid operation in the immediate vicinity of:
> high magnetic or electromagnetic fields
> transmitting antennas or high-frequency generators
For exact values please refere to enclosed specifications.
> Use measurement leads or measurement accessories aligned to the specification of the system only. Fire
hazard in case of overload!
> Do not switch on the system after transporting it from a cold into a warm room and vice versa. The
thereby created condensation may damage your system. Acclimatise the system unpowered to room
temperature.
> Do not disassemble the system! There is a high risk of getting a perilous electric shock. Capacitors still
might charged, even the system has been removed from the power supply.
SAFETY INSTRUCTIONS

12
> Direct exposure of any DEWETRON product to strong sunlight or other heat radiation shall be prevented,
as this could excessively heat up the product and lead to permanent damage of the product.
> The electrical installations and equipments in industrial facilities must be observed by the security
regulations and insurance institutions.
> The use of the measuring system in schools and other training facilities must be observerd by skilled
personnel.
> The measuring systems are not designed for use at humans and animals.
> Please contact a professional if you have doubts about the method of operation, safety or the connection
of the system.
> Please be careful with the product. Shocks, hits and dropping it from already lower level may damage
your system. For exact values please refere to enclosed specifications.
> Please also consider the detailed technical reference manual as well as the security advices of the
connected systems.
This product has left the factory in safety-related flawless and proper condition.
In order to maintain this condition and guarantee safety use, the user has to consider the security advices and
warnings in this manual.
EN 61326-3-1:2008
IEC 61326-1 applies to this part of IEC 61326 but is limited to systems and equipment for industrial applications
intended to perform safety functions as defined in IEC 61508 with SIL 1-3.
The electromagnetic environments encompassed by this product family standard are industrial, both indoor
and outdoor, as described for industrial locations in IEC 61000-6-2 or defined in 3.7 of IEC 61326-1. Equipment
and systems intended for use in other electromagnetic environments, for example, in the process industry or in
environments with potentially explosive atmospheres, are excluded from the scope of this product family standard,
IEC 61326-3-1.
Devices and systems according to IEC 61508 or IEC 61511 which are considered as “operationally well-tried”, are
excluded from the scope of IEC 61326-3-1.
Fire-alarm and safety-alarm systems, intended for protection of buildings, are excluded from the scope of IEC 61326-
3-1.
SAFETY INSTRUCTIONS

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450160 • DW2-UPS-250-DC • Technical Reference Manual • Prinng version 1.0.2 • March 09, 2020
MAINTENANCE
Maintenance
The information in this section is designed for use by qualified service personal.
Service interval:
Clean dust from the chassis exterior/interior and exchange filter foam based on the operating environment.
Cleaning:
Clean surface of the chassis with dry lintfree cloth.
Use a dry velocity stream of air to clean the chassis interior.
> Disconnect all cables before servicing the unit!
> Many components within the chassis are sensitive to static discharge damage. Always wear a
ground wrist strap and service the unit only in static-free environment.
> Do not use harsh chemical cleaning agents!
!

14
GENERAL INFORMATION
Environmental Considerations
Information about the environmental impact of the product.
Product End-of-Life Handling
Observe the following guidelines when recycling a DEWETRON system:
System and Components Recycling
Production of these components required the extraction and use of natural resources. The substances
contained in the system could be harmful to your health and to the environment if the system is improperly
handled at it's end of life! Please recycle this product in an appropriate way to avoid an unnecessary pollution of the
environment and to keep natural resources.
This symbol indicates that this system complies with the European Union’s requirements according to Directive
2002/96/EC on waste electrical and electronic equipment (WEEE). Please find further information about recycling on
the DEWETRON website
www.dewetron.com
Restriction of Hazardous Substances
This product has been classified as Monitoring and Control equipment, and is outside the scope of the 2011/65/EU
RoHS Directive. This product is known to contain lead.

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DW2-UPS-250-DC
System specifications
DW2-UPS-250-DC - external UPS
> DC power supply with 3 hot swappable batteries
> 250 W power for one hour with internal batteries
> Output voltage of 12 VDC to 16 VDC when running from
batteries or 24 VDC when powered from DC
> Charge and discharge state via COM interface
> Including external 115 / 230 VAC adaptor
DW2-UPS-250-DC
Input
Rated input voltage 11 to 32 VDC (input galvanically isolated and protected against wrong polarity)
Max. input current 34.7 A
Max. input power 270 W
Input connector 2-pin female LEMO connector (EGJ.3B.302)
Output
Output voltage 24 VDC (when powered from DC)
12 to 16 VDC (when running from internal batteries)
Output power max. 250 W (with 3 batteries installed)
Output current 10.4 A (when powered from DC)
20.8 A (when running from internal batteries @ 12 VDC)
Output connector 2-pin female LEMO connector (EGG.2B.302)
Batteries
Type Li-ion NH2054HD31 (item code: BAT-89-WH)
Nominal voltage 14.4 V
Energy density 89 Wh (267 Wh with 3 batteries installed)
Battery slots 3 battery slots available (3 batteries included with delivery)
Expectable runtime with 3 batteries
DEWE2-A4
TRIONet
depending on conguration: ~2 hours (average cong.); ~1.2 hours (max. cong.)
depending on conguration: ~8 hours (average cong.); 4.5 hours (max. cong.)
Environmental
Operating temperature 0 °C to 50 °C when discharging batteries
0 °C to 45 °C when charging batteries
Vibration test
EN 60068-2-6
Shape Sine
Frequency range 10 - 150 Hz
Acceleration 2 g
Sweep rate 1 oct./min.
Duration 20 Cycles
Test in 3 directions
Vibration test
EN 60721-3-2
Class 2M2
Shape Random
Frequency range 10 - 200 Hz
Power spectral density 1 m/s² / Hz from 10 – 200 Hz
Duration 30 Minutes per axis
Shocktests
EN 60068-2-27
Shape Half-sine
Acceleration amplitude 15 g
Duration 11 ms
Test in 3 axis, 3 shocks in each axis and direction
Dimensions (W x D x H) approx. 318 x 253 x 47 mm (12.51 x 9.96 x 1.85 in.)
Weight 2 kg (4.4 lbs) w/o batteries

16
318
25311
41,55,5
DW2-UPS-250-DC
Dimensions*
* Dimensions in mm
(25.4 mm = 1 inch)

17
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DW2-UPS-250-DC
1 Power supply output connectors (LEMO EGG.2B.302)
2 Power supply input connector (LEMO EGJ.3B.302)
3 COM interface (to PC COM port)
4 Knurled-head screws for battery cover
5 External power LED
6 Cutout for LCD battery status
7 Charger ON/OFF switch
8 Push-button for battery alarm
9 ON/OFF push-button with integrated power LED
DW2-UPS-250-DC at a glance
The DW2-UPS-250-DC is an external UPS and multi-battery charger with an isolated DC input offering a wide rated
input range of 11 to 32 VDC (max. 9 to 36 VDC). If an external DC power supply is connected, the output voltage is fixed
at 24 VDC with a maximum output power of 250 W. If running in battery mode (no DC power supply connected) the
output voltage ranges between 12 and 16 VDC (= battery voltage).

18
DW2-UPS-250-DC
1 Power supply output connector (x2)
The DW2-UPS-250-DC outputs a voltage between 12 and 16 VDC when running on batteries or 24 VDC with
external power supply connected.
Power supply output pin assignment:
Lemo EGG.2B.302
Connection example:
Connecting a DEWE2-A4/M4 or DEWE3-A4/M4 to the DW2-UPS-250-DC. Connect the power supply output of the
DW2-UPS-250-DC with the power supply input of the DEWE2-A4/M4 or DEWE3-A4/M4. The DW2-UPS-250-DC comes
with a cable set of ~25 cm for DEWE2/DEWE3-A4/M4. Longer cables for flexible use are optionally available.
Power supply input of
instrument
Power connection
cable (included) Power supply output
of DW2-UPS-250-DC
2 Power supply input connector
The power supply input supports a voltage range from 11 to 32 VDC. The input is galvanically isolated and protected
against wrong polarity.
Power supply output pin assignment:
+ -
Lemo EGJ.3B.302
DEWE2/DEWE3-A4/M4
DW2-UPS-250-DC

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DW2-UPS-250-DC
3 COM interface
The COM interface connector meets standard COM pin assignment. This interface connects e.g. a DEWE2/DEWE3-A4/
M4 with the DW2-UPS-250-DC. With the plugin "BatMan" it is possible to access information about the charging state,
condition and capacity of the batteries.
COM interface
connection
typical COM interface connection cable
4 Knurled-head screws for battery cover
To access the batteries, loosen the screws at the front panel and remove the battery cover. The knurled-head screws
are attached to the battery cover to prevent them from getting lost.
DEWE2/DEWE3-A4/M4
DW2-UPS-250-DC

20
DW2-UPS-250-DC
5 External power LED
The external power LED indicates that there is an external power supply connected and the batteries in the
DW2-UPS-250-DC are charging. The LED is only active when the Charger Power ON/OFF switch (7) is switched to
position "I".
6 Cutout for LCD battery status
To have a quick look at the battery status at any given time, the DW2-UPS-250-DC provides some cutouts for the 5
segment LCD charge level indicator of the installed battery packs. Further information regarding the 5 segment LCD
charge level indicator please refer to chapter "Smart battery packs".
7 Charger ON/OFF switch for vehicle testing
To prevent the vehicle battery from draining, the DW2-UPS-250-DC charger can be switched off manually. During the
charger is deactivated, the measurement system does not draw any power from the vehicle battery. This prevents
from deep discharging the car battery e.g. when parked during weekend.
e.g. car battery
External power LED is
active
DW2-UPS-250-DC
switched to position "I"
The internal batteries of
the DW2-UPS-250-DC are
charging and eventually
drain the battery of the
car.
DW2-UPS-250-DC
switched to position "O"
Charger is deactivated.
Measurement system
runs on DW2-UPS-250-DC
internal batteries only.
e.g. car battery
External power LED is
not active
+
-
+
-