sewerin RT 03 User manual

InstructionsInstructions
InstructionsInstructions
Instructions
Operating-Operating-
Operating-Operating-
Operating-
102419

Measurable success with Sewerin equipmentMeasurable success with Sewerin equipment
Measurable success with Sewerin equipmentMeasurable success with Sewerin equipment
Measurable success with Sewerin equipment
You settled on a precision instrument. good choice!
Our equipment stands out for guaranteed safety, optimal output and
efficiency.
It correspons with the national and international guide-lines.
These operating instructions will help you to handle the instrument
quickly and competently.
Please pay close attention to our operating instructions before usage.
In case of further queries our staff is at your disposal at any time.
Yours
Hermann Sewerin GmbH
Robert-Bosch-Straße 3
D-33334 Gütersloh
!: +49 - (0) - 52 41/9 34-0
FF
FF
FAXAX
AXAX
AX : +49 - (0) - 52 41/9 34-4 44
http:// www.sewerin.de

1
Design of the : RT 03
Display Field
Control Panel
Do not switch-on the device without antenna !

2
THE EASY ACCESS
- Concise Operating Instructions -
Connect the microphone with the
appropriate adapter,
Switch-on the transmitter,
Avoid noises for about 6 seconds.
READY !
Connect the antenna,

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RT 03
Operating InstructionsOperating Instructions
Operating InstructionsOperating Instructions
Operating Instructions ......................
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102419 - 03/11.04.1997

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For Your Safety *
Thelawrelatingtotechnicalinstruments(Gerätesicherheitsgesetz)of
June 24th, 1968 (Federal law gazette I, page 717), and the amended
lawof August13th, 1979(Federal lawgazette I,page 1432)prescribe
the following instruction:
PAY ATTENTION TO THE OPERATING INSTRUCTIONS.
Each operation of this instrument presumes exact knowledge of and
adherence to these operating instructions.
The instrument is only for the described purposes.
LIABILITY FOR FUNCTION AND/OR DAMAGES
The liability for the proper function of the instrument is irrevocably
transferred to the owner or user in case that the instrument has been
serviced or repaired by personnel not employed or authorized by the
SEWERIN-ServiceTeam, or if the instrument is operated in a manner
which does not correspond to its intended use.
For this reason, always use original SEWERIN accessories for your
RT 03.
The Hermann Sewerin GmbH does not accept liability for any dam-
ages resulting from non-observance of the above indications. The
warrantyandliabilityconditionscontained inourgeneraltermsofsale
and delivery are not extended by the above indications.
Subjectto technicalchanges withinthe scopeof furtherdevelopment.
HERMANN SEWERIN GMBH
Insofar as reference is made to laws, regulations and standards, these are based on the legal
order in the Federal Republic of Germany.
*

5
CONTENTS PAGE
For Your Safety.......................................................................................4
1.0 The RT 03 .....................................................................................6
1.1 Use................................................................................................7
1.2 System components......................................................................7
2.0 The Control of the RT 03 ............................................................8
2.1 Switching on the device.................................................................8
2.2 Operating modes..........................................................................9
2.3 Adjustment of the headphone volume.........................................10
2.4 Filter selection .............................................................................10
2.5 Function control...........................................................................11
3.0 Charging.....................................................................................12
4.0 Possible operating trouble.......................................................14
5.0 Technical hints ..........................................................................16
6.0 Technical specification .............................................................17
7.0 Accessories ...............................................................................18

6
1.0 The RT 03
(Please refer to the picture on the inner front page !)
POS. DESIGNATION FUNCTION
CONTROL PANEL
1 ON/OFF button Switching on
Switching off
2 Level button Set the optimal value for
radio transmission
3 "Turn down" button Turningdowntheheadphones
4 "Turn up" button Turning up the headphones
DEVICE
5 Microphone socket
6 Carrier-belt
7 Loading socket forcaradapterorplugpower
8 Headphone socket
9 Antenna socket
DISPLAY FIELD
10 LCD display Display of:
Level volumes
Instantaneousvalues
Error messages
Operatinghoursstillavailable
11 Filter-switch Select 0 Hz or 150 Hz as
high-pass
= press switch
device

7
1.1 Use
The radio transmitter RT 03 serves to receive the noise coming
fromfittingsandtotransmititbyradiotothecorrelatorwhichisalso
delivered (!see the appropriate Operating Instructions).
1.2 Systemcomponents
To make the transmitter ready for use, the following components
arenecessary:
●antenna,
●headphones (delivered with the correlator),
●piezoelectric microphone,
●adapters (for attachment to hydrants
and sliding valves) or
●horseshoe magnet (for fastening on
metallic pipes without fittings).

8
2.0 The Control of the RT 03
2.1 Switching on the device
The start up procedure of the RT 03 is the following:
"connectthepiezoelectricmicrophonewiththemicrophone
socket (pos. 5),
"screw the appropriate adapter (square adapter or
horseshoe magnet) to the microphone,
"attach the microphone to the fitting or the pipe,
"connect the antenna (pos. 9) and
"switch-on the device (pos. 1).
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#Do not switch-on the device without antenna ! ##
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#
Immediately after the switching on of the device, the automatic
level adjustment is carried out for about 6 secounds. During this
time you should avoid to make noise
(taps, voices or the like). The number
ofbarsegmentsonthebarchartshows
the number of operating hours still
available.
The RT 03 now is transmitting and
permanently signals the relation
between the actual and the adjusted
level.
Bymeansoftheheadphones(pos.8),youcanlistentothenoise
coming from the fitting. Now, all adjustments of the transmitter
having been made, you can begin with the correlation.

9
2.2 Operating modes
Tochangetheoperatingmode,the„Turndown“button(pos.3)and
the „Turn up“ button (pos. 4) are to be pressed at the same time.
For a moment, the display will indicate that
now an adjustment operation is executed.
You can select between the three possible operating modes by
actuatingthe„Turndown“ (pos. 3) or the „Turnup“button(pos.4):
Automatic level adjustment
!normal adjustment when switching on the
transmitter and for correlation;
By actuating the level button (pos. 2), this
adjustmentcanberepeatedatanytime.This
is recommended when e.g. the environment
noisesweretooloudduringthefirstautomatic
level adjustment.
Manual level adjustment
!operating mode for the sonic speed
measurement;
During transmission the level button (pos.2)
is locked; now the level is adjusted by the
"Turn down" button (pos. 3) or the "Turn up"
button(pos.4)andcanbecontrolledwiththe
headphones.
Radio module switched off
!operating mode for the electro-acoustic
water leak detection;
For this you will need an appropriate ground
microphone or a test rod. This adjustment is
announcedbytheregularblinkingoftheLCD
display. With the level button (pos. 2) the
headphones can be switched on or off.
The desired adjustment is acknowledged by activating the level
button (pos. 2).

10
2.3 Adjustment of the headphone volume
The desired headphone volume can be adjusted by means of the
„Turn down“ button (pos. 3) or the „Turn up“ button (pos. 4).
This is displayed by a „migrating gap“
within the segment range of 8 bars.
In this connection:
Gap on the left means - headphone volume at „0“,
Gap at right means - volume at maximum.
After switching off the transmitter the finally adjusted headphone
volume will be preserved.
2.4 The Filter selection
With the rotating switch the following is beeing chosen:
"ØHz" highpass,everynoiseportionisbeingamplifiedand
transmitted.
"160 Hz" high pass, only noise portions above 160 Hz are
being transmitted.
The optimum setting depends on a particular situation and has to
betriedout.Withtheposition"160Hz"interferingnoiseswithinthe
deep frequencey range can (i.e.) be surpressed effectively. The
position 0 Hz should be tried out amplified when using the
hydrophone.
Basically the same filter position should be used for the radio
transmitter 1 and 2.

11
2.5 Function control
It is recommended to control the functioning of the transmitter by
regular intervals. For this, switch-off the device and activate
simultaneously the ON/OFF button (pos. 1) and the level button
(pos. 2).
Follows a bar segment check by the
LCD display, and
the display of the number of the
software version.
Afterwardstheautomatic leveladjustment iscarriedoutandthe
device is transmitting.

12
3.0 Charging
During operating mode, the loading position of the RT 03 is
constantly being displayed by segments.
The number of segments displayed
indicate the remaining hours of
operation.
If the RT 03 has not been charged for a substantial time, the
remaining operation period decreases by way of self-discharging.
Underthesecircumstances,theremainingoperationtimeindicated
can be higher than the time actually still available.
Ifthebatterysymbolisdisplayedduring
normal operation time, the accu-
voltage has fallen so much that the
remaining operation time stands
aprox. by 15 min.
In case the accu-voltage is falling further, the RT 03 automatically
switches off.
Thetransmitter caneitherberechargedby theplug powerdevice,
delivered with the RT 03 (230V≈/12V=) or by the car connection
adapter (12V=/12V= or 24V/=12V=) respectively. Hereby the
transmitter- inswitched-off position- isconnectedvia itscharging
socketwiththechosenloadingadapter.Afterashortacusticsignal
the following message is displayed:
e.g. 16 Hrs. charging time are still
required before the battery is
recharged fully.
(In this instance the remaining
operating time is 2 Hrs).
After that time the transmitter is fully charged and changes
automatically into the buffer operation, thus covering the self
discharging loss. The transmitter is ready for continued use, the
accu is not sustaining any damage.

13
Once the RT 03 has been recharged,
the charging time is no longer
displayed. The available operating
time will be at least 10 Hrs.
In case the accu has been almoast completely discharged thus
making a further operation impossible, it can also be worked via
external 12V= instead of recharging: connect the transmitter to
a 12V and actuate the on/off key.
While charging heat is developing within the instrument.
When charging in increased outside temperatures (i.e.
duringsummerorinsidethevehicle)pleaseopenthecase.
Therewillbea16hourchargingcyclewitheachnewpower
supply.Toobtainthemax.acculevel,anew chargingcycle
should only be startet once the accu has been discharged.
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14
4.0 Possible operating trouble
LCD-Display Description of fault
Warning tone: no
Source : headphone
volume to full
Remedy : device switches
itselfovertoalower
value
Warning tone: yes
Source : multiply overflow
Remedy : SEWERIN-Service
Warning tone: yes
Source : errorwhenactivating
the last headphone
adjustment
Remedy : SEWERIN-Service
Warning tone: yes
Source : ROM error
Remedy : SEWERIN-Service
Warning tone: yes
Source : RAM error
Remedy : SEWERIN-Service
Warning tone: yes
Source : EEPROM error
Remedy : SEWERIN-Service

15
LCD-Display Description of fault
Warning tone: yes
Source : radio module
voltagediffersfrom
the nominal value
Remedy : SEWERIN-Service
ROM = read-only memory
RAM = random access memory
EEPROM = electrical erasable programmable read-only memory

16
5.0 Technical hints
Theradiotransmitter RT 03 correspondstothelegalprescriptions
relatingtoradiotechnicalinstallations.Itstransmittingpowerissuf-
ficientforthetransmissionofsignalsoveradistanceofabout1,000
m. In that case the transmitting and the receiving antenna are in
direct visual contact.
Therangeis reducedifthe transmitterorthereceiverareinmetal-
cased places (e.g. in a car or a metal-armored cellar).
Nevertheless a reliable measuring situation can be established, if
necessary, by means of the extension of the microphone cable.
To ensure a better handling, the radio transmitter can be operated
fromacasewhichisdeliveredwiththedevice.Theconnectionsfor
aerial, microphone and loading adapter are outside of it.
Shouldwaterorhumidityhavepenetratedintoit,thedeviceistobe
stored with opened case.

17
6.0 Technical specification
Serial number : 009 02 . . . .
Type Design Number
Characteristics : automatic adjustment of the level of
leakage noises,
display of the leakage noise level as
percent-age,
micro-processor controlled loading
technics,
under voltage switching off
Connections : sockets (6.3 mm) for microphone
and headphones,
charging socket,
BNC socket for antenna
Power supply : incorporated accumulator (12 V, 4 Ah),
operating hours: approx. 10,
charging cycle 16 h,
chargingcurrent 700 mA
Acoustic signals
- Errors : continuous tone
- Low voltage : interval signal
Transmitting power : 500 mW
Range : approx. 1,000 m
Band width : 8 Hz ... 4 kHz
Dimensions (WxHxD): 175 x 145 x 105 mm
Weight : approx. 2.6 kg
Range of temperature
- Device operating: -10° up to +40°C
- Device stored : -10° up to +70°C
Protection : according to IP 54

18
7.0 Accessories
CARRIER-BELT Leather, adjustable from 0.5 to 1.0 m,
for carrying the device
CHARGING UNIT
- Plug power device Power supply by mains-connection,
230 V≈/ 12 V=
- Car connection adapter Power supply by the car battery,
12 V= / 12 V= or 24 V= / 12 V=
PIEZOELECTRIC with an extremely high noise
MICROPHONE sensitivity and in a moisture-sealed
and rust-proof design
HYDROPHONES sound recorder particularly
recommended to be placed into the
water column,
also recommended for the leak
location in non metallic pipes
GAS AND AIR SOUND to locate leakages on pipes which
MICROPHONE contain a gaseous medium
CABLE EXTENSION to extend the microphone cable to a
length of 5/10 m
ADAPTERS for hydrants, slide and stop valves in
houses and for a fixed attachment of
piezoelectric microphones
HORSESHOE MAGNET toattachthepiezoelectricmicrophone
to fittings or pipes
HEADPHONES stereo design, for the controlling of
leak noise