Philips 6652C - Page 14

Type
0.4A delayed, action for 230V
O.BA delayed action for 115V
4A fast action secondary
Operating position
Service code
4822 253 30016
4822 253 30019
4822 253 20026
The counter can be operated in any desired posi-
t ion. A fold-down tilting support is available
underneath the counter. For use in 19" rack: un-
screw the top and bottom covers, remove the two
side pieces and fit two rack mount adapters, re-
place the covers. See fig 2.1.
Fig. 2.1 Illustrates" · how the 19'" side pieces
are mounted.
Power switch
In position Sf BY is only the supply voltages
switched off . But the supply to the oven oscil-
lator is still connected .
Warning!
This is a secondary power switch. Also
in position ST BY t h ere will be live parts in-
side the coun t er. To separate the counter com-
pletely from the mains, the mains cable must be
disconnected.
The POWER ON test
When th e inspections and adjustment for local
line voltage have been made, switch the power
on, Now a practical test of the correct opera-
tion of the PM 6652/54 is run automatically.
This self-check program starts every time power
is switched from STAND BY to ON .
As soon as power is applied, the display shows:
8.8.8.8.8.8.8.8.8.8, EXP-8
and the following indicators appear:
FREQ A (or the function contained in a stored
panel program if a program was active
last time the instrument was switched
to ST BY)
All the "unit" indicators
All the P1 •• P8 indicators
All the "extra" indicators (i.e., REMOTE, ARMED,
FREQ AVG, EXT GATE and STAND BY)
All LEOS on the front panel (except the trigger
indicators) .
The program
runs for about three seconds, and
can be stopped by pressing RESET. When finished
successfully, tho display panel wi 11 show:
0 0 0 0 0 0 0 0 0 0 EXP 0
with only the FREQ A or other s t ored program
function cursor from the recalled program dis-
played (one of the indicators P1 ... P8 are lit) .
Any "extra" conditions will also appear.
For all cases, unless a stored program dictates
otherwise, the AC COUPLING and AUTO LEOs will be
lit, indicating that these controls have been
selected automatically.
If an error is detected, it is indicated by an
"E" followed by the test number that failed.
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