User's Manual

12 Channel Channelised Cell Enhancer
User Handbook
Handbook N.-50-122501HBK Issue No:-A
Date:-16/03/05
Page:-
31 of 40
4.12 JWS100-12/A PSU (96-300051)
4.12.1 Description
The mains power supply unit used to power the channel selective modules is a switched-
mode type capable of supplying 12V DC at 8.5Amps continuously, (the cell enhancer
draws approximately 5.0Amps from this 12V supply under normal conditions).
No routine maintenance of the PSU is required. If a fault is suspected, then the output
voltage from the power supply may be measured on its output terminals. This is typically
set to 12.2V. The output voltage may be varied using the multi-turn adjustment
potentiometer mounted close to the DC output terminals.
All the PSU’s used in AFL Cell Enhancers are capable of operation from either 110 or
220V nominal AC supplies. The line voltage is sensed automatically, so no adjustment or
link setting is needed by the operator.
4.12.2 Technical Specification
AC Input Supply:
Voltage: 110 or 220V nominal
90 to 132 or 180 to 264V
(absolute limits)
Frequency: 47 to 63Hz
DC Output Supply:
Voltage: 12V DC (nominal)
10-14V (absolute limits)
Current: 8.5A