Instrument Description; Front Panel - LEM MachineTest 204 Manuel D'utilisation

INSTRUMENT DESCRIPTION

3 INSTRUMENT DESCRIPTION

3.1 Front panel

1
2
3
4
Fig. 01: Front panel
1.............. Euro mains socket 230 V / 50 Hz, 500 VA.
2.............. General fuse T 6.3 A / 250 V (5 × 20 mm).
3.............. Mains key type ON / OFF switch.
4.............. TEST LEAD COMPENSATION button to compensate resistance of test
leads in functions U
5.............. Rotary switch to select one of four available measurement functions.
6.............. TRIPPING CURRENT select tripping current for HV test (in case there is
some capacitive or resistive leakage current present at the tested machine).
7.............. Yellow TRIP OUT control lamp to inform the operator that break-through
and thus trip out test voltage has occurred.
8.............. MEASUREMENT ON control lamp which will light when any measurement is
running – take care, dangerous voltage may be applied to test terminals.
9.............. START / STOP key to start or stop any measurement.
10............ Test terminal + ∼ ∼ .
11............ Test terminal - ∼ ∼ .
12............ Hot control lamp. It will light if the instrument is overheated in functions U
or R
PE
until the lamp is off.
13............ Unit of displayed result.
14............ Red LED display.
230 V
50 Hz
500 VA
.
5 6
and R
PE
. START button will not be operational (only in U
ISO
7 8
.
PE
6
hot
........overrange
_
∼
O
U
T
P
U
T
+ ∼
9
and R functions)
PE PE
14
13
12
11
10
PE