Safetytest 3N User manual

SAFETYTEST 3N Manual
SAFETYTEST
SAFETYTEST GmbH
16 April 2006
Page 1 of 18
SAFETYTEST 3N Manual
Picture 1
Texts and drawings were prepared with great care. However, errors can still be present. The
manufacturer assumes no direct or indirect liability for any damages which may occur.
Please read this manual carefully before using the leakage current clamp.
Warning markings in the manual and on the clamp are meant to warn of risks or dangers.
General warning see manual
This warning marking in the manual is intended to warn of risks or
dangers of intended or not intended use
Disregarding these warnings may result in serious injuries or death.
Warning when exchanging fuses
Warning of the risk of fire, e. g. when using improper fuses.

SAFETYTEST 3N Manual
SAFETYTEST
SAFETYTEST GmbH
16 April 2006
Page 2 of 18
Contents
1General Warnings................................................................................................. 4
2Application ............................................................................................................ 5
3Scope of Delivery.................................................................................................. 5
3.1 Standard:................................................................................................................... 5
3.2 Accessories (Optional):............................................................................................. 5
3.3 Spare parts:............................................................................................................... 5
3.4 Software (Optional):................................................................................................... 5
4Connections and user interface........................................................................... 6
4.1 Connections (Picture 2) ............................................................................................. 7
4.2 Mains connection “Input“, Type CEE-32A 230/400V AC (Picture 2/1)........................ 7
4.3 Measuring socket “GND“ (Picture 2/16) .................................................................... 7
4.4 Measuring sockets “Probe“ (Picture 2/17) .................................................................. 7
4.5 Interface PC-COM (Picture 2/18)............................................................................... 7
4.6 Test sockets (Picture 2/2,3,4) ................................................................................... 7
4.7 Testing plugs (picture 2/5,6,7).................................................................................... 7
4.8 Fuses F1, F2 and F3 for all 16A testing sockets (picture 2/23)................................... 8
4.9 Keyboard................................................................................................................... 8
4.10 Display (Picture 2/14)................................................................................................. 8
4.11 Keyboard (Picture 2/15)............................................................................................. 8
5Functional Description......................................................................................... 9
5.1 Power supply............................................................................................................. 9
5.2 Internal memory......................................................................................................... 9
5.3 Interface RS232......................................................................................................... 9
5.4 Display and Keyboard................................................................................................ 9
5.5 Fuses......................................................................................................................... 9
6Testing the Mains Connection ............................................................................10
7Connection test....................................................................................................10
7.1 AC Supply.................................................................................................................10
7.2 Three phase connection ...........................................................................................11
8Display and Menu Structure................................................................................11
9Taking the Tester into Operation........................................................................11
9.1 Visual check .............................................................................................................11
9.2 Connecting the tester to the mains system ...............................................................11
9.3 Starting the test.........................................................................................................11

SAFETYTEST 3N Manual
SAFETYTEST
SAFETYTEST GmbH
16 April 2006
Page 3 of 18
10 Testing Electrical Appliances .............................................................................11
10.1 Qualification..............................................................................................................12
10.2 Mains connection......................................................................................................12
10.3 Visual inspection.......................................................................................................12
10.4 Measurements..........................................................................................................13
10.5 Functional test ..........................................................................................................13
10.6 Checking the markings .............................................................................................13
10.7 Documentation of the test.........................................................................................13
11 Connections, Examples.......................................................................................14
12 Updating the Firmware........................................................................................15
13 Error messages, removing faults........................................................................16
13.1 The display remains dark..........................................................................................16
13.2 Touch current display is 0,000 mA...........................................................................16
13.3 Touch current larger than 0,5 mA..............................................................................16
13.4 Leakage current measurement shows “F“ as a result................................................17
13.5 The mains voltages are displayed incorrectly............................................................17
14 Spare Parts...........................................................................................................17
15 Technical Data......................................................................................................17
16 Disposal................................................................................................................18
17 Guarantee.............................................................................................................18

SAFETYTEST 3N Manual
SAFETYTEST
SAFETYTEST GmbH
16 April 2006
Page 4 of 18
1 General Warnings
The tester “Safetytest 3N“complies to the following safety standards:
EN 61010-1
SAFETY REQUIREMENTS FOR ELECTRICAL EQUIPMENT FOR
MEASUREMENT, CONTROL, AND LABORATORY USE
DIN VDE 0404 parts 1 and 2,
In order to warrant the safe application of the tester the following warnings have to be
adhered to:
All tests may only be carried out by a skilled electrician or under the
supervision of a skilled electrician. The qualified person must be trained
for the specific task.
The tester may be subject only to its intended use. The warning
markings have to be observed.
The tester may be used only on 230/400 V AC main systems which are
protected with max 32A circuit breakers or fuses.
Repairs and alterations to the tester may be carried out only by the
manufacturer or by a service organisation qualified by the manufacturer.
Repairs on the supply leads may be carried out only by skilled
electricians.
Only original spare parts supplied by the manufacturer may be used.
The fuses F1, F2 und F3 (T16 A 250 V) may be exchanged only by
fuses of the manufacturer.
Other fuses may cause fire!
Only the adapter cables delivered by the manufacturer may be used!
If a safe application is not possible, e. g. due to:
- Visual defects,
- Improper storage,
- Improper transport,
- Failure o a phase control lamp,
- Failure of measurement functions
The tester must be decommissioned!

SAFETYTEST 3N Manual
SAFETYTEST
SAFETYTEST GmbH
16 April 2006
Page 5 of 18
Earth bond tests and touch current tests in power systems are only
allowed when regarding ht appropriate safety precautions.
Note that large voltages may appear on appliances under test, e. g. by
charged capacitors.
Connect the appliance under test only to the tester if the power system
is safe and OK.
NOTE! When connecting the appliance to mains hazardous voltages
may occur on conductive parts which are not connected to PE.
2 Application
The tester “SAFETYTEST 3N“ is used for testing the electrical safety of appliances.
3 Scope of Delivery
3.1 Standard:
Tester
Test lead
Test certificate
3.2 Accessories (Optional):
Mains chord 32 A
Adapter 32A CEE-16A CEE for connection to 16A CEEE plugs
Adapter 32 A CEE Schuko
Adapter 32A CEE-fixed connection
Crocodile clip
Brass brush probe for effective earth bond testing
Barcode scanner
Barcode printer
Transponder scanner
Small line printer
5 m probe
3.3 Spare parts:
Fuse 16AT
3.4 Software (Optional):
Remote control and database software Safety-Remote-SAFETYTEST 3N
Protocol and Excel software Safetydoc SAFETYTEST 3N

SAFETYTEST 3N Manual
SAFETYTEST
SAFETYTEST GmbH
16 April 2006
Page 6 of 18
4 Connections and user interface
1
2
3
4
5
6
7
4
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Picture 2
1. 32 A CEE three phase plug for connection power
2. 32 A CEE three phase test socket
3. 16 A CEE three phase test socket
4. 16 A CEE AC test socket
5. 32 A CEE three phase plug for testing extension leads
6. 16 A CEE three phase plug for testing extension leads
7. 16 A CEE AC plug for testing extension leads
8. IEC power connector for the optional auxiliary power supply (normal not connected)
9. IEC power connector test socket for IEC connector couplings
10. IEC power plug for testing extension leads
11. Schuko test socket
12. Schuko plug for testing extension leads
13. LCD Display 128x64 dots back lit
14. Menu keys
15. Alphanumeric keypad for entering the appliance master data
16. Yellow GND 4mm socket for measuring temperature and voltage
17. Probe sockets force (red) and black (sense)
18. Serial COM interface for the PC or for the connection of an optional barcode reader,
transponder reader or compact printer.
19. Green OK LED indicates an PASSED test result
20. Red fault LED indicates a FAIL test result
21. Test-button for testing the integrated RCD functionality.
When the button is pressed a leakage current is simulated. If the current exceeds a
limit value the mains circuit breaker is disconnected. For reasons of safety the tester
has to be disconnected to take it into operation again.
22. Phase indicators, showing mains voltage when the circuit breaker is switched on.

SAFETYTEST 3N Manual
SAFETYTEST
SAFETYTEST GmbH
16 April 2006
Page 7 of 18
23. Phase fuses L1, L2, L3 for the 16A test sockets (use only replacement fuses supplied
by the manufacturer, since there exists danger of fire.)
24. Fuse FF 250mA for the earth bond test.
4.1 Connections (Picture 2)
Before connection the tester to mains the appropriate warnings in chapter 2 have to be
observed, as well as the warnings for the connecting leads and accessories attached. It is
safe to use the instrument only for its intended use.
4.2 Mains connection “Input“, Type CEE-32A 230/400V AC (Picture 2/1)
Mains connection of the tester to AC and three phase systems, including the N conductor.
The tester may be connected only to a 230/400V, 50/60Hz mains protected by max 32A
circuit breaker. The internal supply for the tester is taken from L1-N.
Depending on the mains socket in the wall the connection is done using the appropriate
adapter.
4.3 Measuring socket “GND“ (Picture 2/16)
Connection for the negative pole for temperature and voltage measurements.
4.4 Measuring sockets “Probe“ (Picture 2/17)
Connection for the probe for earth bond and touch current measurements
4.5 Interface PC-COM (Picture 2/18)
Connection for a 9 pin D-sub connector for the serial interface
RS 232 (19200, N, 8, 1) for :
Transferring data to and from the PC
Calibration
Firmware updates
Note: The interface may be connected to a USB port by using an optional USB-RS232
converter.
4.6 Test sockets (Picture 2/2,3,4)
The 16A mains sockets are fused via F1, F2 and F3!
NOTE!!!
When connection a faulty appliance to the test socket a hazardous voltage may occur when
mains is applied on accessible conductive parts not connected to the protective earth and on
the housing if the protective earth is out of order.
The leakage current, mains currents and power is measured via the test sockets.
Test socket “CEE 32 A (5pol)“ for appliances with CEE-plug 32 A (5pol), (picture 2/14)
Test socket “CEE 16 A (5pol)“ for appliances with CEE-plug 16 A (5pol), (picture 2/13)
Test socket “CEE 16 A (3pol)“ for appliances with CEE-plug 16 A (3pol), (picture 2/12)
Test socket “IEC plug“ for appliances with IEC plug (3pol), (picture 2/3)
Test socket “Schuko“ for appliances with Schuko plug 16A (picture 2.2)
4.7 Testing plugs (picture 2/5,6,7)
The testing plugs are used for testing extension leads. During the test the earth bonding,
insulation against PA and phase rotation is tested.

SAFETYTEST 3N Manual
SAFETYTEST
SAFETYTEST GmbH
16 April 2006
Page 8 of 18
4.8 Fuses F1, F2 and F3 for all 16A testing sockets (picture 2/23)
The 16 A testing sockets are fused by three fuses(6x32 16 AT) F1, F2 and F3 for phases L1,
L2 and L3.
4.9 Keyboard
The alphanumeric keyboard with the menu keys is used to operate the easy to use user
menu system.
4.10 Display (Picture 2/14)
The display has a resolution of 128 x 64 pixels and is backlit. The menus are displayed as
text messages.
4.11 Keyboard (Picture 2/15)
Key “Esc“
Functions:
Note:
- Key left within a menu
- Press for a long duration and the main
menu appears, press again and the
first “Connection” menu appears
Key “Down“
Functions:
Special function
- Scroll down within a menu
- Change digits within a numerical entry
Key “„Up“
Functions:
Special Function:
- Scroll up within a menu
- Change digits within a numerical entry
- If the key is pressed during a
measurement the measurement is
reset and it can be repeated.
Key “Right“
Function:
- Scroll right within a menu
Key “Enter“
Function:
- Next step
Function:
- Enter characters
Key “Func“
Function:
- Switch between numeric and
alphabetic (light and dark keys)

SAFETYTEST 3N Manual
SAFETYTEST
SAFETYTEST GmbH
16 April 2006
Page 9 of 18
Key ”Shift“
Function:
- Switch between capital and small
letters
Key ”Space“
Function:
- Space character
Alphanumeric keys.
When entering ID numbers the numerical function is pre selected.
For all other entries the alphabetical entry is pre selected.
Enter small letters by pressing the shift key.
5 Functional Description
5.1 Power supply
The transformers for the supplying the tester are protected by two internal fuses located next
to the transformers.
5.2 Internal memory
The measurements performed are stored in the internal memory. Appliance master data and
test data may be transferred to the PC. Appliance master data as well as the test profile may
also be uploaded from the PC to the tester.
5.3 Interface RS232
The PC is connected via a SUB-D 9 extension cable. An adapter USB/RS232 may also be
used.
Note: All pins must be wired through (1:1). Do not use a Null modem cable.
The baud rate is 19200 baud
The interface is galvanically isolated from the electronics and from the test sockets.
The firmware of the tester may be updated via the interface using a special update program.
A barcode reader may be connected to the interface to scan in ID numbers of the appliances
under test. The reader must be pre configured to 19200 Baud, 8 bits, no parity, 1 stop bit,
code 39. It may be connected toe the interface and the control codes may be scanned in.
A transponder reader may also be connected for scanning in the ID codes.
Note: The appropriate configuration must be made within the menu.
For printing out results a small printer may be connected to the interface.
5.4 Display and Keyboard
The display and keyboard are supplied by their own circuitry.
5.5 Fuses
F1, F2, F3 = mains fuses, T 16 A , 6,3x32, 250 V, for all 16 A testing sockets,
F4 = fuse F 250 mA, 250V, 5x20, for resistance measurement,
NOTE!!!
Please take note of the warnings of chapter 2.

SAFETYTEST 3N Manual
SAFETYTEST
SAFETYTEST GmbH
16 April 2006
Page 10 of 18
6 Testing the Mains Connection
The person responsible for the electrical installation is responsible for the safety of the power
system to which the tester is connected.
The test of the installation is not part of the appliance test. Nevertheless the tester allows a
Note: This is not a complete test as required by IEC 16557.
The test checks if there is a voltage on the N conductor against the PE conductor. Also the
mains voltages are displayed. In addition the display indicates a clockwise or anti clockwise
phase rotation of a three phase system.
Note: If the mains connection is faulty a message “Test PE connection” is
displayed on the display. Further tests may only performed after the power
system has been repaired.
If the tester is supplied from an AC system an indication may appear that the
plug connection has to be reversed. Follow this before testing.
7 Connection test
The first menu displays the phase voltages, the phase rotation and an indication of the
potential difference between the PE and N conductors of the power system.
7.1 AC Supply
If the message “Reverse connection” appears then reverse the polarity of the Schuko plug
connected to the power system.
Notes:
In the configuration “Standard” measurements may only be performed if the
mains connection is reversed.