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Service Manual
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UNIDOS
D776.133.0/1
2006-06 Se/Sa
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UNIDOS
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Contents
Contents
1 For Your Safety 3
2 Spare Parts List 3
3 Regularly Maintenance 4
3.1 Checkups (Function tests) 4
3.2 Constancy Test 5
3.3 Maintenance 5
3.4 Further Tests 6
3.5 System Information 6
4 Troubleshooting 7
5 Functional units 7
5.1 Front panel unit 7
5.2 Measuring Module 8
5.3 Main Board 9
6 Service Software 10
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UNIDOS
For your safety
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1 For Your Safety
CAUTION
This document is a supplement to the
UNIDOS
conjunction with that manual.
The safety statements appearing in the indicated user manual are applicable and must be
observed.
WARNING
In addition to these safety statements, please
note that devices connected to the interfaces
described in this manual must fulfill the requirements of the IEC standard 60950.
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user manual and is valid only in
2 Spare Parts List
The following spare parts are available for the
UNIDOS
Description PTW ID No. or
Desiccator cartridge L137004
O-ring for desiccator car-
tridge
Cover for desiccator car-
tridge
Fuse set for mains opera-
tion
Set of rechargeable batter-
ies
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:
Order Designation
L612037
L603024
2 x L251013
6 x L389026
PTW-FREIBURG
Physikalisch Technische Werkstätten
Dr. Pychlau GmbH
Lörracher Str. 7
79115 FREIBURG
GERMANY
Phone: +49 761 49055-0
Fax: +49 761 49055-70
info@ptw.de
www.ptw.de
D776.133.0/1 3
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3 Regularly Maintenance
3.1 Checkups (Function tests)
The following checkups have to be executed regularly according to the recommendation or the nationally valid laws / rules.
UNIDOS
Regularly Maintenance
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Test
Interval Recommendation Comment
Visual inspection of the device
and the cables
daily and after
breaks (over
several hours)
Current offset + zeroing daily and after
breaks (over
several hours)
Detector test daily and after
breaks (over
several hours),
after changing
the detector
Check desiccator
weekly recommended
Safety inspections
annually acc. law refer to national laws / rules
Inspections of measurement
2 years acc. law refer to national laws / rules
technique
To execute the tests correctly, please observe the
instructions given in the corresponding sections of
the user manual of the UNIDOS
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.
strongly recommended
strongly recommended
repeat after each changing of the
detector
recommended HV check at detector
Safety inspections must only be handled by persons who are trained in the use of such equipment
and are capable of applying it properly. The operator must be trained in the use of the device.
The UNIDOS
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must be inspected at regular
intervals according to national regulations at PTWFreiburg or a qualified calibration laboratory.
Safety inspections and inspections of measurement
technique must also be performed after repairs or
after each influence which may have changed the
behavior of the device.
National valid laws or rules may regulate shorter
intervals.
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UNIDOS
Regularly Maintenance
3.2 Constancy Test
The following tests should be executed regularly.
They make it possible to recognize slow alterations
of the characteristics of device or detector.
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Test
Detector test
Interval
Accessories
weekly - HV check at detector; only range Low
Comment
Device test
weekly - checks device only; only range Low
Long term stability weekly UNITEST check HV and all 3 measuring ranges;
no complete function test
Long term stability monthly check device no complete function test
To execute the tests correctly, please observe the
instructions given in the corresponding sections of
the user manual of the UNIDOS
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.
The test results have to be recorded from the first
start of operation in order to be able to make statements about a change. Addionally for detector
tests: the record has to be separate for each detector.
The checkup of the device can be performed most
extensive with an UNITEST (refer to the user manual of the UNITEST).
A complete function test can take place however
only through a inspection of measurement technique.
3.3 Maintenance
Description
Cleaning + care
Rechargeable battery
- handling –
Changing fuses
To execute the tests correctly, please observe the
instructions given in the corresponding sections of
the user manual of the UNIDOS
Interval Comment
if required
max. 3 month discharge and cha rge NiMH batteries
if required
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.
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3.4 Further Tests
Ethernet-interface
The Ethernet interface can be checked using the
VNC Viewer.
TRIP Output
The function of the TRIP OUTPUT can be checked
as follows: set up the threshold and apply a signal
which exceeds the threshold (e.g. using an
UNITEST).
To execute the tests correctly, please observe the
instructions given in the corresponding sections of
the user manual of the UNIDOS
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.
3.5 System Information
Information about the version of firmware and
hardware and the status of supply voltages of the
device can be read out via service e-mail (refer to
corresponding sections of user manual UNI-
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DOS
The device monitors the supply voltages continuously (Note: These information can be read out only
via service e-mail.)
Example: answer e-mail on a service e-mail at
unidos.webline9@ptw.de:
).
UNIDOS
Regularly Maintenance
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UNIDOS webline SERVICE 2006-02-01 12:04:09
System information
Device name: UNIDOS webline
Type number: T10021
Serial number: 5
Hardware revision: A02
Firmware: 1.12-1
Calibration date:
Next calibration:
CPUBoard SerNr.: 0
CPUBoard Rev.: A01
Measuring Unit
Firmware: 1.00-9
Serial number: 1
Calibration: 1
Last Zeroing: 2006-02-01 12:03:12
Power Supply
Firmware: 1.01
Serial number: 0
Calibration: 1
Main: 12.017V, OK
12V: 12.004V, OK
5V: 4.991V, OK
3.3V: 3.294V, OK
Bat: 11.133V
Battery State: 0
Battery Level: 0
System-Internals
StandbyState: 0
System Flags: 0
Debug Flags: 0
Storetime: 2006-02-01 11:04
MB_BootCounter: 100
MB_ErrorBits: 0
MB_ControlWord: 0
MB_AccessErrCnt0: 0
MB_AccessErrCnt1: 0
MB_AccessErrCnt2: 0
MB_AccessErrCnt3: 0
MU_Ready: 100
MU_ErrorBits: 0
MV ErrorCounter: 0
MV ErrorCntTotal: 0
AllCorrectionsOff: 0
StabilizationTimeLeft: 0
SpurTrapCounter: 0
MbComMultipleTelegrams: 0
PSinfo: 4
DB Error:: 0
INET_State: 0
UDP_State: 0
TCP Error: 0
E-Task Error: 0
E-Task Time: 0
E-Task Data: 0
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UNIDOS
Troubleshooting
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4 Troubleshooting
The instruction manual of UNIDOS
the procedures to apply, if problems occur during
the operation of the device or error messages are
shown on the display. The particular sections are:
10.1 Error Messages on the Display
10.2 Checking the Measured Value
10.3 Problems Operating the UNIDOS
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describes
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5 Functional units
Opening of the device and working at the device
must be performed only by PTW-Freiburg or by
persons authorized by PTW-Freiburg.
WARNUNG
Shock Hazard – Dangerous voltages become
touchable with the opening of the device. For
the connecting systems BNT and TNC: the entire enclosure of the measuring module is on
the potential of the high voltage. In order to
switch off the device safely, it must be turned off
and separated from the power line. Moreover,
all connection cables must be disconnected in
order to prevent contact to external voltages. At
last the rechargeable batteries must be removed.
5.1 Front panel unit
CCFL Inverter for
backlight
TFT Display
Power
Figure 1: Front panel unit
The front panel unit is a compact unit which contains and connects the subunits shown above.
Plastic foil keyboard
and navigation knob
Main CPU board
I/O
The main CPU executes the firmware of the device
with all aspects like graphic user interface, display
control, presentation of measured values, communication with interfaces, etc. The main CPU stores
all device settings, detector data and also the results of system tests.
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In case of exchanging the front panel unit all these
data have to be saved first and later on entered into
the new front panel unit by means of the service
software.
The main CPU contains also the real-time clock
and the associated back-up battery.
5.2 Measuring Module
UNIDOS
Functional units
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Input
ADC
Amplifier
HV measurement
Desiccator
HV (to detector)
External HV
Internal
HV
HV source selection HV polarity
µController
EEPROM
Figure 2: Measuring module
The measuring module is designed as an independent unit and can be exchanged with another
one of the same connecting system.
Serial I/O
Control
DC DC
Power
Electrical Isolation
It stores all relevant amplifier data like calibration
factors and zeroing results as well as calibration
factors for measuring high voltage. With older editions of the measuring module, only the internal HV
can be measured and monitored.
Since the results of the system tests are stored in
the main CPU, these data are however no more
comparable after a replacement of the measuring
module.
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5.3 Main Board
UNIDOS
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Functional units
Supply voltages
Power
supply
units
Voltages
measurement
Relay
AC / DC
Charge
control
Wide
range
Electrical Isolation
Figure 3: Main board
The main board contains the individual subunits for
generation and monitoring of the supply voltages as
well as for charging the rechargeable batteries. It
fulfills connection functions beside that. Its name
originates from its physical size and implies in no
way, that it houses the main CPU.
Mains
Connector &
Filter
Rear panel
Rechargeable
batteries
Host I/O (SERIAL)
Ethernet
TRIP Output
The calibration factors for measuring of the supply
voltage are stored in the main board.
The results of the voltage monitoring can be read
out via service e-mail. It is not necessary to execute
measurements inside the device.
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6 Service Software
The service software has to fulfill three tasks:
− Backup of the device settings as well as the
detector data base to a connected PC
− Update of the device firmware
− Restore of the device settings as well as the
detector data base
If a firmware update from PTW-Freiburg is released
for the UNIDOS
ware version on the newest version by means of
this software.
The software uses exclusively the RS232 interface
for communications.
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, the user can update the firm-
UNIDOS
Service Software
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A firmware update over the Ethernet interface is not
possible.
The software will probably be available in June
2006.
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