T&R LU5000, Operating And Maintenance Manual

Page: 9 / 30

9
1.1.1 Loading unit
ITEM FUNCTION
A Output terminals High current output to object under test
Caution
– the output terminals and test
leads may become hot during use.
B
Power input Power input from control unit
C Metering output Metering output to control unit
1.1.2 Control unit
ITEM FUNCTION
D Timer Displays trip time of device under test
E
Contact inputs Sense contact state of device under test
F
Timer mode switch Select timer mode
G
Metering input Metering input from loading unit
H Ammeter Displays load current
I Ammeter range switch Selects ammeter low/high range
J
Ammeter series/parallel switch Selects Series/parallel connection for
metering
K
Loading unit output Power output to loading unit
L
Pulse mode selector Selects 0.5s pulse mode on output
M
Output on/off pushbuttons Switches output on and off
N Output control Sets output current
P Output circuit breaker Protects output
Q Mains on/off switch/circuit breaker Isolates unit from mains supply
R
Auxiliary fuse Metering and timing fuse
S
Power indicator Power supply on indicator
T
Mains input Mains supply inlet
V Earth stud Connect to local earth