4
Limited warranty and limitation of liability ............................................ 6
Service ...................................................................................................... 6
References marked on the instrument or in this instruction manual ... 7
Introduction ............................................................................................. 8
The following features characterise the Machinery-Tester MT 204-S .. 8
Scope of supply ........................................................................................ 9
Transport and storage ............................................................................. 9
Safety measures ..................................................................................... 10
Appropriate usage ................................................................................. 11
Operation elements and connectors .................................................... 12
Front panel of the Machinery-Tester MT 204-S ................................... 12
Instrument cover .................................................................................... 12
LC-Display ............................................................................................... 14
Safety measures ..................................................................................... 15
Preparation of the Machinery-Tester MT 204-S ................................... 16
Turning on the Machinery-Tester MT 204-S ......................................... 16
Test lead compensation ........................................................................ 16
Limit value setting ................................................................................. 17
External voltage display, display in case of blown fuse ...................... 18
Automatic start and save function ....................................................... 18
Measurement according to EN 60204-1 ............................................... 19
Earth bond resistance measurement (R
PE
function) ............................ 19
Loop impedance / Prospective short-circuit current
measurement (Z
l
/I
PSC
function) .............................................................. 20
Insulation resistance measurement (R
ISO
function) ............................. 22
High voltage test (HV function) ............................................................ 24
Residual voltage / Discharge time measurement (U
RES
, t
RES
function) 26
Explanation of linear and non-linear mode ......................................... 28
Residual voltage measurement
"
Linear mode" ................................... 28
Residual voltage measurement
"
Non-linear mode" ........................... 29
Trigger conditions ................................................................................. 29
Menu functions ...................................................................................... 30
General operation instructions ............................................................. 30
"
MEMORY
"
menu ................................................................................. 31
"
DATE/OPERATOR
"
menu ..................................................................... 32
"
LANGUAGE
"
menu .............................................................................. 33
"
CONTRAST
"
menu ............................................................................... 33
"
BACKLIGHT
"
menu ............................................................................... 34
"
TESTER INFO
"
menu ............................................................................ 34
Memory features ................................................................................... 35
Memory structure .................................................................................. 35
General memory operations ................................................................. 36
Memorizing example ............................................................................ 37
Recall data ............................................................................................. 38
Entry of memory address using external keyboard ............................. 39
Enter of memory address using bar code reader ................................. 40
Maintenance .......................................................................................... 41
Cleaning ................................................................................................. 41
Calibration interval ................................................................................ 41
