Tietzsch MultiSafe DSP-UB 3 User manual

Rudolph Tietzsch GmbH & Co. KG
Willringhauser Straße 18
58256 Ennepetal
GERMANY
Phone: [phone]
[email protected]
www.tietzsch.de DSP-UB3_BA_03-2021
User Instructions
MultiSafe DSP-UB 3
Voltage Tester for 3rd-rail

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1 display unit
2 extension with O-electrode
3 red / green LED-indication for voltage
4 display (LCD) for voltage,
two color backlight
5 On- O-button / hold button for selftest
6 handgear
7 contact magnet for ground connection
8 1,5 m connection line
Symbols on the instrument
This device has to be disposed of according to the
applicable regulations and laws
(for Europe: WEEE 2012/19/EU). Please contact
[email protected] in regard to the return of old devices.
Attention! Observe user instructions!
Indicates EC conformity
Device for live working
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1. Application
The MultiSafe DSP-UB 3 is a two-pole voltage tester
to test on railway lines with lateral power supply
(3rd-rail). Thanks to its green and red LEDs, the
display is easy to see even in dark surroundings.
The rmly attached magnet and the extension
allowing greater safety distances and ease of
handling.
With the MultiSafe DSP-UB 3 you can test within
the specied nominal voltage range of 10 to 3000
V DC and 10 to 3000 V AC voltages. The integrated
self-test enables the function to be checked on site.
Thanks to its high degree of protection (IP65) the
MultiSafe DSP-UB 3 may even be used in rain.
1.1 Intended use
This device is intended for use in applications as
described in the operating instructions only. Thus,
it is imperative to observe the notes on safety and
the technical data in conjunction with the ambient
conditions.
Any other form of usage is not permitted and can
lead to accidents or destruction of the unit.
Any misuse will result in the expiry of all guarantee
and warrantly claims.
2. Safety Precautions
When used for its intended purpose, the safety of
the operator, as well as that of the instrument, is
assured.
In order to maintain awless technical safety con-
ditions, and to assure safe use, it is imperative that
you read these operating instructions thoroughly
and carefully before placing your instrument
into service, and that you follow all instructions
contained therein.
Observe the following safety precautions:
The voltages indicated on the MultiSafe are
rated voltages. The voltage tester may only be
used in systems working within these rated
voltage ranges.
Faultless indication of display values is only
guaranteed between -15° and +55°C.
Hold the instrument by the handgear only, to
avoid covering the display and not touching the
test electrode.
The test probe may only be connected up to
the red limiting mark to live plant components.
The maximum on-period is 120 seconds.
Only qualified persons may carry out work with
these device. The user needs to be farmiliar with
the risks for measuring voltage and compliance
with safety regulations and the proper use of the
voltage detector.
The voltage tester may only be dismantled by
authorised personnel.
The grp-extension of the voltage tester must not
to be removed. It must be mounted on the
display unit of the DSP UB 3. The tester cannot
be used without the grp-extension.

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Workings may only be performed with appropriate
personal protective equipment.
Observe the minimum object distance to other
plant components that are energized or earthed
and use personal protective equipment as speci-
fied by national accident prevention regulations
(in Germany: DGUV V3 or DIN EN 50110-1).
The function of the voltage tester must be
checked briefly before and whenever possible
after the use. Carry out the function test. If the
indication of one or several systems fails in the
course of checking, the instrument must not be
used again.
This voltage detector may not permit to clearly
indicate the absence of operating voltage in case
of interference voltage because of its relatively
high internal impedance.
When the indication “voltage present” appears
on a part that is expected to be disconnected of
the installation, it is recommended confirming by
an other means that there is no operating voltage
on the part to be tested.
 Before using the device check the housing, the
extension and the connecting line for visible
damage. If damages are visible the voltage tester
may not be placed into operation.
In case of strong dirt contamination, the tester must
be cleaned before use.
If it is dirty or oxidized, the magnetic contact should
be cleaned with emery paper.
 The tester has to be stored in a clean and dry
environment.
3. Putting into operation
Attention!
The DSP-UB 3 does not switch on automatically at
voltage.
Switch-on: Press button .
Switch-o: Press button until „oFF“ is indicated.
When no voltage is applied, the device switches o
automatically after 120 s. The display illumination
switches o after approximately 5 s when no voltage
is applied
3.1 Battery
Your instrument is already supplied with a 9 V block
battery.
The battery status is indicated by a battery symbol on
the display (see section 5). You need to change the
battery of the device before continuing with testing
when the empty battery symbol on the display ashes.

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3.2 Establish contact with the earth
Place the contact magnet on
the bare rail.
The contact surface must
be clean and free from
coarse rust.
3.3 Checking the function with the integrated
self-test
Step 1 – Test of the display
The device must be switched
o for the self-test.
Press and hold button
All display segments
light up on the display,
the backlight changes
between red and white. In addition, 4 LEDs light up
and the buzzer sounds.
Release button , „TEST“ is indicated on the
display.
Step 2 – Check test circuit and protective resistors
Hold the test electrode to
the grounded rail.
Through this, the
measurement and the
connecting line are tested.
“RdY” appears on the
display and the green
LEDs ash. In this case,
the self-test was successful.
If no„rdY“ appears, the earth connection must be
checked and, if necessary, cleaned, and the test
probe and electrode checked. The self-test must be
repeated.
Attention!
If one of the displays fails during the self-test – even
if only partial failure occurs – or if the instrument
does not indicate„rdy“ after the self test, the voltage
tester may not be placed into operation!

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4. Measuring and testing
Attention!
The function test (see 3.3) has to be performed
successfully.
The voltage tester does not switch on automatically
when voltage is applied.
After a successful self-test, contact the power rail
with the O-electrode of the extension.
The O-electrode must be rotated so that the busbar
is touched as shown below.
Safe contact through the O-electrode
Application in moist environments
The DSP-UB 3 is approved for indoor and outdoor
applications. In case of precipitation, the device has
to be wiped dry before usage.

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4.1 Voltage indication
DC / AC voltage, polarity
The type of voltage is represented by the symbols
„~“ for AC and„-“ for DC.
If the negative pole of a DC voltage is on the display,
the„-“ symbol appears. If there is a positive pole
there, no sign appears.
Voltage > 3000 V AC / 3000 DC
The ashing OL display warns of overvoltages.
In this case the test must be stopped immediately!
Note: The voltage tester is equipped with continuous
function monitoring. If the message„- U - Err“ is
displayed during the voltage test, the device is
defective and must no longer be used!
green LEDs ash
display illumination white
red LEDs lights up
display illumination red
no voltage
(voltage < 260 V)
voltage!
(voltage > 260 V)

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5. Battery
The latest battery status is symbolised by a
three-stage battery indicator on the display.
indication of battery status
replace the battery soon –
few measurements possible
(Battery symbol ashing:
no further measurements admissible!)
Attention!
When the empty battery symbol ashes, then no
more measurements can be performed and the
battery has to be replaced immediately.
The device requires a 9 V block battery IEC 6LR61 /
6LF22 / 6LP3146 (alkali-manganese).
5.1 Replacing the battery
Loosen the screw at the back of the instrument which
secures the battery compartment lid, remove the lid.
Let the battery drop out of the battery compartment
with its CAT IV protection cover and exchange it.
Therefore, snap the battery contacts onto the 9 V
block battery and insert the battery together with the
CAT IV protection cover into the battery compart-
ment. Put the lid back on the battery compartment
and screw it tight.
Regularly make sure that the battery of your device
does not leak. In case it does, you have to replace the
electrolyte completely and to insert a new battery.
In case of a long storage period, remove the battery
from the device.
Note:
Included in the scope of delivery is one battery. These
battery is not to be re-charged. Attempting to rechar-
ge it may cause risk to personal safety and damage
to the equipment. The battery may not to be opened.
Depleted batteries must not be disposed with the do-
mestic waste. Please, return batteries at a local retailer
or municipal recycling depot. Return is free of charge
and required by law.

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6. Maintenance / Storage
6.1 General information
The MultiSafe DSP-UB 3 is completely maintenance-
free. Nevertheless, observe the following information
in order to maintain safe operation:
Always keep the voltage tester dry and clean. The
housing can be cleaned with a cloth dampened with
isopropyl (alcohol) or soapy water.
6.2 Repeated inspection
According to EN 61243-2 it is necessary to carry out
repeated examinations.
It should not exceed the time-limit of 6 years.
Depending on operation conditions and frequency
a previous inspection may be recommendable.
The serial number with the date of manufacturing
(WWYYNN = Week Year Number) is imprinted on the
battery cover on the backside of the device. Repeated
inspections are oered by the manufacturer and
indicated by the inspection plate.
7. Repair
Repair is only allowed by the manufacturer or expli-
citly authorised repair shops.
In case of damages on the device or failure of the
function test according to section 3.2 or for detailed
inspection/calibration, please contact:
[email protected] or send the device and a
description of failure back to the manufacturer
(address see page 1).
8. Limited warranty and limitation of liability
By continuous quality checks and production
controls, most modern electronics and high quality
materials we guarantee that the tester will be free
from defects in material and workmanship for two
years.
This warranty does not cover batteries, improper
handling, not intended purpose, opening the hou-
sing, improper storage or damages from accidents.
No other warranties such as tness for a particular
purpose will be given.
We are not liable for any indirect, incidental or
consequential damages or losses arising from any
cause or theory.

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9. Technical data
Type/ Nominal voltage range: DSP-UB 3:
10 ... 3000 V AC
10 ... 3000 V DC
Nominal frequency range: DC/15 ... 500 Hz
Measurement range: 10 ... 3000 V AC
10 ... 3000 V DC
± 3 % + 5 D
Input resistance: 448 kΩ at 3000 V
Current peak value Is:
< 3,4 mA
On-time: at max nominal voltage
TRon 120 s
RTo max 240 s (recovery time)
Display:
2 red LEDs for voltage
2 green LEDs for no voltage
LCD 1999 Digit
two-color backlight
Polarity: LCD voltage type - / ~
integrated self-test: connection cable, extension,
electronic, display,
protective resistors
Power supply: 9 V-Block IEC 6LR61 / 6LF22 /
6LP3146 alkali-manganese
Construction: for indoor and outdoor installations
Insulation test voltage: 6 kV
Operating temperatures: -15 ... + 55°C
Casing :ABS, display cover made of
impact resistant polycarbonate
Design : two-pole voltage tester with
a xed 850 mm extension
made of GRP with O-electrode
for testing covered busbars,
PUR sheathed cable - double
insulated with contact magnet
for connection to the grounded
running rail
Protection category: IP 65,
device can be used during
precipitation
Connecting line: PUR sheathed cable,
1500 V, 1,5 m with rmly
attached magnet
Standards: in accordance with
IEC 61243-2
EMV requirements: DIN-EN 61326
Dimensions/Weigth :1150 x 70 x 70 mm
450 g

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