7
Installation
Mains Operating Voltage
Check that the instrument operating voltage marked on the rear panel is suitable for the local
supply. Should it be necessary to change the operating voltage, proceed as follows:
1) Disconnect the instrument from all voltage sources.
2) Unclip the front bezel by gently pulling the centre of each long edge up and forward.
The case halves are held together by 4 plastic push-rivets. Use the blade of a small
screwdriver in the slot beside each rivet to first ease out the rivet head and then fully remove
the rivet body. Separate the case halves. Visit http://www.aimtti.com/support for further
details.
3) Remove the screws securing the pcb to the case lower and lift out the pcb with front and rear
panels attached; lift one side of the pcb at a time, with the case pcb clips on that side pulled
clear of the pcb edge.
4) Change the voltage settings by changing the soldered links beside the transformer:
For 230V operation fit link LK2 only
For 115V operation fit links LK1 and LK3 only
5) Reassemble in the reverse order.
6) To comply with safety standard requirements the operating voltage marked on the rear panel
must be changed to clearly show the new voltage setting.
7) Change the fuse to suit the new operating voltage, see below.
Fuse
Ensure that the correct mains fuse is fitted for the set operating voltage. The correct mains fuse
types are:
for 230V operation:
250 mA (T) 250V HRC
for 100V or 115V operation:
500 mA (T) 250V HRC
The use of makeshift fuses or the short
−
circuiting of the fuse holder is prohibited.
Mains Lead
Connect the instrument to the AC supply using the mains lead provided. Should a mains plug be
required for a different mains outlet socket, a suitably rated and approved mains lead set should
be used which is fitted with the required wall plug and an IEC60320 C13 connector for the
instrument end. To determine the minimum current rating of the lead-set for the intended AC
supply, refer to the power rating information on the equipment or in the Specification.
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.
