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Note:
The output voltage is determined with R
above. The output voltage is 0 V if R
with the voltage control provided on the panel. To fix it or
Vref
set it externally, connect a 10 k ohm resistor which has a
good temperature characteristic across ® and ® according
to "Control by resistance (I)". The voltage control of the
panel is now ineffective.
Note:
Be sure to adjust the output voltage at OUTPUT ON mode. In
OUTPUT OFF or V/l CHECK mode, there is a slight error in
meter reading.
Control by external voltage
It is possible to output voltage which is proportional to
voltage.
1) Turn off power.
2) Remove the short bar ® - ® and connect external voltage
V
across (4) and © as shown Fig. 9. Be very careful about
x
the polarity.
T w o - c o r e s h i e l d c a b l e
Fig. 9
16
and Wet as given
2
is infinite (open). Set
2
Note:
The external signal voltage should be 0-10 V . The input im-
pedance across © and © is approximately 10 k ohms. Use a
two-core shield cabie and connect the shield line to © .
^
Vmax
V
0 —
~~T
x
V
l
( 0
V ! < 1 0 V )
S
REMOTE CONTROL OF CONSTANT CURRENT
(Resistance, voltage)
Refer to the " P R E C A U T I O N S WHEN USING REMOTE CON-
T R O L "
under
" R E M O T E
V O L T A G E "
Control by resistance
Control of constant-current is possible in proportion with
resistance.
1) Turn off power.
2) Remove the short bar © - ( 7 ) .
3) Connect variable resistor R 3 (10 k ohms) across © and ©
as shown Fig. 10.
Fig. 10
V
[ V ] :
O u t p u t v o l t a g e
0
V , [ V ] :
E x t e r n a l s i g n a l v o l t a g e
V ™ , [ V ] :
M a x i m u m r a t e d o u t p u t v o l t a g e .
C O N T R O L O F C O N S T A N T -
R
3
T w o - c o r e
s h i e l d c a b l e
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