4 GMC-I Gossen-Metrawatt GmbH
Table of Contents
1 Applications ...............................................4
2
Safety Features and Precautions .......................4
3 Initial Start-Up ............................................6
4 Test Sequence ...........................................6
5
Descriptions of Individual Measurements .........8
5.1 Measurements at the Test Outlet(s) ........................8
5.2 Measurements at the Mains Outlet(s) .....................9
6 Report Functions ......................................10
6.1 Transmission Mode (Transmission only while 
Program MINITEST is Active) ...............................10
6.2
Permanent Transmission (Transmission only while 
Program MINITEST is Active) ................................... 10
6.3
Memory Mode (Read-Out only with 
Program 
MINITEST⏐MASTER
) ................................ 10
6.3.1 Activate Memory Menu .......................................10
6.3.2 Selecting Memory Function .................................10
6.3.3 Exiting the Memory Menu ....................................11
6.3.4 Reading out Stored Measured Values at the PC ....11
6.3.5 Barcode Scanner Function ...................................11
6.3.6 Switching Off Safely ............................................11
7 PC Analysis Software Programs ..............11
7.1 Program „MINITEST“ ........................................11
7.2 Program „MiniTEST Master“ ............................11
8 Technical Data .........................................12
9 Maintenance ............................................14
9.1 Housing .............................................................14
9.2 Replacing the Fuse .............................................14
9.3 Calibration Intervals ............................................14
9.4
Return and Environmentally Sound Disposal .................. 14
10 Accessories ..............................................15
10.1 Standard Equipment ...........................................15
10.2 Order Information for Available 
Accessories ........................................................15
11 Repair and Replacement Parts Service 
DKD Calibration Laboratory and Rental 
Instrument Service ..........................................16
12 Product Support .......................................16
1 Applications
The test instrument is used to test the electrical safety of monophase and 3-phase 
electrical devices. The test instrument allows 
for the measurement of protective conductor 
resistance, insulation resistance and differential current and/or contact current in 
accordance with DIN VDE 0404.
2 Safety Features and Precautions
The test instrument has been manufactured 
and tested in accordance with the following 
safety regulations:
IEC 61010-1 / DIN EN 61010-1 / VDE 0411-1, 
DIN VDE 0413 parts 2 and 4.
When used for its intended purpose, the 
safety of the user, the test instrument and 
the device under test (electrical equipment 
or electrical medical device) is assured.
Read the operating instructions carefully and 
completely before placing your test instrument 
into service. Follow all instructions contained 
therein. Make sure that the operating instructions 
are available to all users of the instrument.
Tests may only be performed by a qualified 
electrician, or under the supervision and 
direction of a qualified electrician. The user 
must be instructed by a qualified electrician 
in the execution and evaluation of tests.
Safety Precautions for MINITEST 3P⏐M
ASTER
The instrument is intended for connection 
with a 3-phase system up to 32 A.
MINITEST 3P⏐MASTER can also be connected  
to all customary CEE and earthing contact 
outlets via the adapters included in the standard equipment.
Attention!
!
The instrument may only be connected to the mains via the adapters 
included in the standard equipment.
Attention!
!
All mains sockets and/or test sockets are connected in parallel: 
Only one DUT at a time may therefore be 
connected to a socket.