Rf Probe Pm - Philips PM2517E Service Manual

1 3
2 . 2 - 4 . R F p r o b e P M 9 2 1 3 ( F i g . 6 )
a 4 4 7 0 9 e 1 3 0 0 1
T Y F I C A L F R E O U E N C Y - R E S P O N S E C U R V E
+ 3
d a
+ 2
+ 1
o
- 1
- 2
d a
- 3
+ 3
da
+ 2
+ 1
o
- ' l
- 2
da
- 3
10 kXr
2.2.5.
1 O O k H r
l M X r I O M H r l 0 O M H r
1 O m V - 1 5 V r m r
1 0 k H ! - 2 5 O M H .
V - t n . r 3 0 v | " n !
v = m e r 3 5 O V
EHT probe type PM 9246 { Fig. 7)
The EHT probe Plvl 9246 is su'table for measuring d.c. voltages up to 30 kv. The PM 9246 can be used for
m e a s u r i n g i n s t r u m e n r s h a v i n g a n i n p u t i m p e d a n c e o f 1 0 0 l V l Q , l 0 M Q o r 1 . 2 l \ 4 Q ( s e l e c t a b l e o n t h e p r o b e ) .
M a x i m u m v o l t a g e
Attenuation
Input impedance
Atcuracy
Relative hLrm idity
30 kv
1 0 0 0 x
600 tvro 1 57o
20vo to 80yo
2.2.6.
Note: Check that earth connections are made correctly.
Current trans{ormer type PM 9245 (Fig.8}
With this transformer it is possible to measure alternating currents over 10 A up to 100 A
1 0 0 0 x ( 1 0 0 A = 1 0 0 m A )
4 5 H z t o
' l
k H z
Transfer factor
Transfer erro r
Frequency range
Max. permissible secundary voltage
loss 200 mV
lvlax. voltage with respect to earth 400 V a.c.
Betore measuring, connect the current transformer to the instrument.
Avoid contamination of the core parts.
2.2.7.
Shunt type (Fig.9)
' 1 0
A a n d 3 1 . 6 A
' 1 0 0
m V a n d 3 1 . 6 m V
' l 0 0 m V
: 1 1 %
3 1 . 6 m V : t 2 %
m a x . 3 . 1 6 W
H e i g h t
5 5 m m
w i d t h
1 4 0 m m
Depth 65 mm
With this shunt it is possible to measure direct- and alternating currents (max. 1 kHz) up to 3'1.6 A.
Current range
Output voltage
Accuracy
D issipation
D i m e n s i o n s
6 8 O p F