MAINTENANCE
JUNO-NET
2.6 BATTERY VOLTAGE AND CHARGER CHECKS
On the main panel and sub-panels (if fitted) measure the battery voltage. This should be 28.5V +/- 0.2V.
Switch off the primary supply and check that the battery voltage does not drop significantly. Carry out a
test on a detector or manual callpoint with the primary supply disconnected to ensure that the batteries are
healthy.
NOTE
:
BATTERIES MUST BE REPLACED PERIODICALLY IN ACCORDANCE WITH THE
MANUFACTURER'S RECOMMENDATION. ALWAYS USE SEALED LEAD ACID BATTERIES.
18
JUNO-NET EN-54
MAINTENANCE MANUAL
21-08-2005
REVISION 1.0
OPERATION &
ss
ss
2.7 REPLACING THE ELECTRICAL MAINS FUSE
On the main panel and sub-panels (if fitted) locate the power supply unit. On the aluminum covering you
will a 3 way fused terminal block. Lift the protruding grasp handle. Inside you will find the fuse housing.
For convenience, there is also place to store a spare fuse.
NEUTRO
FASE
1A
F
U
S
E
MEANWELL
MODEL: PS-65-27
INPUT: 100-240V AC 1.5A
OUTPUT: +27V
2.4A
50/60Hz
DANGER
220 VOLTS
2.4A POWER SUPPLY UNIT
2.4Amp = 4Amp Fuse
5.6Amp = 6.3Amp Fuse
PSU
FUSE