Protek 608 - Page 30

30
APPENDICES
assembly , becau se its t es tin g volta ge is low enou gh to treat regard semiconductor s
as upen circuit and therefore you can ch£ck exact resistance va l ue of each compon-
ent without removin g semiconductors or breaking the PCB pattems co nnect ed
to them.
9 nS
I
... ...
ICCIIICY
au
I
Mia •
I
500 .0 nS
0.1 nS
3.0% +5d
2.5V / 25 nA 250 VA C or DC
IIZlmI
1) 5 = 1I R
Wher e 5 : Si em ens , R : R es istance
5OOn5 co rre spo nd s to 2Mohm ; OJ n5 to lDGDhm .
2) Olreful attention for s hieldin g from noi se in very high resi s tance
10. CO NTIN UITY
!
...
..
....
AI:CIIIICI
...a:MI
j
Sho rt Bu zze r On
< 50h m
5kohm
Ope n
Bu zze r O ff
> 1 50 hm
Short
Bu zzer On
<50 ohm
50 ko hm
O pen
Bu zzer O ff
> 1 00 ohm
250 VA C or DC
Short
Bu zze r On
<500 o hm
(500 ohm PT C)
5 00 ko h m
Ope n
Bu zze r Off >1 kohm
Sho rt
Bu zze r On < 5 ko hm
5 M o hm
O pen
Bu zzer O ff
> lOkohm
lL ZE NER DI ODE
....
aa.ICY
1ESJc.III
1fII ... '
.. ,ra.
I
15. 000 V
5%
+1 0d l mA
15 to
22 V
l5O VACo r IX
(500 ohm rIC)
IIZlmI
1) Zener diode vo lta ge fr om OV up to th e o pen c ircuit volta ge (1 5 to 22V) ca n be
conveniently mea s ur ed with lmA co ns tant c urrent so urce cir c uit built in to this
meter .
2) This juncti on ca n be used as constant current source with hi gh accuracy of
1mA± 5% fo ~ com p liance volta ge of a bou t 20 11.