User manual

6
Installation
Mains Operating Voltage
Check that the instrument operating voltage marked on the rear panel is suitable for the local
supply.
Mains Lead
When a three core mains lead with bare ends is provided this should be connected as follows:
BROWN - MAINS LIVE
BLUE - MAINS NEUTRAL
GREEN/YELLOW - EARTH Safety Earth Symbol
When fitting a fused plug a 5 amp fuse should be fitted inside the plug. As the colours of the
wires in the mains lead of this apparatus may not correspond with the coloured markings
identifying the terminals in your plug proceed as follows:
The wire which is coloured green-and-yellow must be connected to the terminal in the plug which
is marked by the letter E or by the safety earth symbol shown above or coloured green or green-
and-yellow.
The wire which is coloured blue must be connected to the terminal which is marked with the letter
N or coloured black.
The wire which is coloured brown must be connected to the terminal which is marked with the
letter L or coloured red.
WARNING! THIS INSTRUMENT MUST BE EARTHED.
Any interruption of the mains earth conductor inside or outside the instrument will make the
instrument dangerous. Intentional interruption is prohibited.
Connections
Output Terminals
All power connections are made from the front panel.
The load should be connected to the positive (red) and negative (black) terminals marked
OUTPUT. Both are fully floating and either can be connected to ground.
The terminal marked
is connected to the chassis and safety earth ground.
RS232
9–pin D–connector for PC remote control with the following connections:
Pin Name Description
1
DCD
Linked to pins 4 and 6
2
TXD
Transmitted data from instrument
3
RXD
Received data to instrument
4
DTR
Linked to pins 1 and 6
5
GND
Signal ground
6
DSR
Linked to pins 1 and 4
7
RTS
Linked to pin 8
8
CTS
Linked to pin 7
9
–
No internal connection
Connect to a PC with a cable which has pins 2, 3 and 5 wired plus pins 1, 4 & 6 and pins 7 & 8
linked at the PC end.