OXTS RT-UPS Manual de usuario
Confidently. Accurately.
RT-UPS
Uninterruptible
Power Suppl
y
User Manual
2 Oxford Technical Solutions
Legal Notices
Information furnished is believed to be accurate and reliable. However, Oxford
Technical Solutions Limited assumes no responsibility for the consequences of use of
such information nor for any infringement of patents or other rights of third parties
which may result from its use. No license is granted by implication or otherwise under
any patent or patent rights of Oxford Technical Solutions Limited. Specifications
mentioned in this publication are subject to change without notice and do not represent
a commitment on the part of Oxford Technical Solutions Limited. This publication
supersedes and replaces all information previously supplied. Oxford Technical
Solutions Limited products are not authorised for use as critical components in life
support devices or systems without express written approval of Oxford Technical
Solutions Limited.
All brand names are trademarks of their respective holders.
The software is provided by the contributors “as is” and any express or implied
warranties, including, but not limited to, the implied warranties of merchantability and
fitness for a particular purpose are disclaimed. In no event shall the contributors be
liable for any direct, indirect, incidental, special, exemplary, or consequential damages
(including, but not limited to, procurement of substitute goods or services; loss of use,
data, or profits; or business interruption) however caused and on any theory of liability,
whether in contract, strict liability, or tort (including negligence or otherwise) arising in
any way out of the use of this software, even if advised of the possibility of such
damage.
Copyright Notice
© Copyright 2015, Oxford Technical Solutions.
Revision
Document Revision: 150609 (See Revision History for detailed information).
Contact Details
Oxford Technical Solutions Limited
77 Heyford Park
Upper Heyford
Oxfordshire
OX25 5HD
United Kingdom
Tel: +44 (0) 1869 238 015
Fax: +44 (0) 1869 238 016
Web: http://www.oxts.com
Email: support@oxts.com
RT-UPS User Manual
Revision: 150609 3
Warranty
Oxford Technical Solutions Limited warrants the RT-UPS product to be free of defects
in materials and workmanship, subject to the conditions set forth below, for a period of
one year from the Date of Sale.
‘Date of Sale’ shall mean the date of the Oxford Technical Solutions Limited invoice
issued on delivery of the product. The responsibility of Oxford Technical Solutions
Limited in respect of this warranty is limited solely to product replacement or product
repair at an authorised location only. Determination of replacement or repair will be
made by Oxford Technical Solutions Limited personnel or by personnel expressly
authorised by Oxford Technical Solutions Limited for this purpose.
In no event will Oxford Technical Solutions Limited be liable for any indirect,
incidental, special or consequential damages whether through tort, contract or
otherwise. This warranty is expressly in lieu of all other warranties, expressed or
implied, including without limitation the implied warranties of merchantability or
fitness for a particular purpose. The foregoing states the entire liability of Oxford
Technical Solutions Limited with respect to the products herein.
4 Oxford Technical Solutions
Table of contents
Introduction 5
Product features 5
Description 5
Scope of delivery 7
Connecting and disconnecting the internal battery 8
Connections 12
Operation 13
LED definitions 13
Extended storage 13
RT-Range 14
Specification 15
Conformance notices 16
Regulator testing standards 16
Safety notices 17
Battery information 17
Transport by sea 18
Transport by air 18
Disposal / End of Life 18
Revision history 19
RT-UPS User Manual
Revision: 150609 5
Introduction
The RT-UPS is an uninterruptible power supply designed to prevent brown-out and
black-out conditions affecting our inertial navigation system (INS) products in real-
world applications. It supplies 12 volts at two amps for up to two minutes in vehicles
during engine cranking or if the driver stalls the engine and the ignition is turned off.
The RT-UPS is suitable for use with all INS products from OxTS.
Product features
Benefits of using an RT-UPS are:
Wide range of input voltage (9–48 V)
Brown-out and black-out protection during cranking
No need to re-initialise and warm-up system if power is accidentally cut
Internal battery charges while supplying the output
Isolated output
Transient protection for equipment
Description
The RT-UPS activates when power is applied to its input. If the input supply is
subsequently interrupted, or drops too low, the RT-UPS continues to output a constant
12 volts for up to two minutes using its internal battery. This prevents brown-outs
during vehicle cranking, and black-outs if the auxiliary power socket is accidentally
disconnected. In this way the INS continues to operate and there is no need to re-
initialise or perform additional warm-ups.
When the input power supply is absent a warning buzzer will sound and the RT-UPS
will continue to supply power to the output. If the RT-UPS does not detect a load on
the output the RT-UPS will turn off immediately and the buzzer will stop.
If the input power supply is restored within two minutes, the RT-UPS will revert back
to the vehicle’s power supply and charge the battery (if necessary). If the input power
supply is absent for longer than two minutes, the RT-UPS will stop the output power
and the “No Power” LED will illuminate for up to 10 minutes.
If the internal temperature of the enclosure exceeds approximately 75°C, then output
power will be turned off and the RT-UPS will enter standby for five minutes. It is not
possible to exit this mode—except by waiting five minutes.
6 Oxford Technical Solutions
The RT-UPS will try to charge its internal battery whenever an input power supply is
present and charging is necessary. The internal battery is protected against charging
outside of its specified charging temperature range.
If the battery temperature exceeds approximately 65°C, charging will be suspended
until the temperature falls to around 60°C. If the battery temperature falls below
approximately 0°C, charging will be suspended until the temperature reaches
approximately 5°C.
If the battery temperature approaches the lower threshold, the fan is temporarily
disabled to avoid unnecessary cooling that might prevent charging by actually holding
the battery at a low temperature.
RT-UPS User Manual
Revision: 150609 7
Scope of delivery
Table 1 lists the parts that are delivered with an RT-UPS.
Table 1. Summary of components delivered with an RT-UPS
Qty Description
1 RT-UPS unit
1 RT-UPS user manual
8 Oxford Technical Solutions
Connecting and disconnecting the internal battery
Air transportation regulations require that battery products are disconnected while in
transit. The RT-UPS is shipped with the internal battery disconnected. The battery will
need to be connected before the RT-UPS can be used. These instructions can be used to
connect and disconnect the battery.
There are two versions of the RT-UPS. Newer models can be identified by the large
battery isolation switch on the top panel. This switch connects and disconnects the
internal battery. In normal operation the switch should remain in the on position “I”,
however, when being transported by air, the switch should be set to the off position “0”
to isolate the battery.
Older versions of the RT-UPS require some disassembly in order to access the battery.
Although the RT-UPS does not need to be opened in a full electrostatic free
environment, you should take care to discharge yourself by touching the metal case
before touching any of the internal components.
To open the older model RT-UPS, undo the four front panel screws using a No.1
Philips screwdriver as shown in Figure 1. Occasionally the two screws on the rear panel
also need to be undone to remove the lid.
RT-UPS User Manual
Revision: 150609 9
Figure 1. Removing the front panel screws on the older model RT-UPS
Remove the front panel and slide the lid off the RT-UPS, as shown in Figure 2.
10 Oxford Technical Solutions
Figure 2. RT-UPS showing the battery connector
Connect the battery wires to the socket on the circuit board as shown in Figure 3. The
connector can only be fitted one way round; take care not to force it incorrectly. Slide
the lid back in place, fit the front panel and replace the four screws. The battery will
now be connected correctly.
Before transporting by air disconnect the battery.
The battery should only be replaced by OxTS because the temperature sensor needs to
be fitted correctly.
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