YOKOGAWA 320110, Руководство пользователя

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IM 3201–E
1.
Scale
The scale has a built-in mirror to avoid
parallax in reading.
Look at the scale so that you can see
the pointer is accurately aligned with the
pointer reflected on the mirror, and then
read the value.
2. Knife-edge Pointer
3. Meter Cover
This is made of acrylic resin.
4. Cover Fixing Screw
5. Zero Adjust Screw
This is to set the pointer to zero with a
screwdriver if it does not rest at zero
prior to measurement.
6. Polarity Select Switch
I n t h e c a s e o f D C v o l t a g e o r D C
current measurement, the polarity
select switch is set to the
+DC or -DC
position according to the polarity of the
measuring circuit. While, in the case
of AC voltage or low frequency output
level or resistance measurement, it is
turned to
+DC,AC, Ω
. This switch has a
3-contact switch to make deflecting
angles of the pointer wider to clarify the
polarity selection.
<Center Position>
When the switch is rested at the center
position, the circuit is opened and the
pointer coil is shorted, thus, the pointer
does not deflect. Set it to this position
when carrying the instrument around.
7. Zero ohm Adjust Knob
When measuring resistance,
this is to adjust the pointer
to zero of the [OHM] scale
by shorting the tip ends of
the measuring probes of the
leads.
<Checking batteries>
T h i s i s a l s o u s e d w h e n
c h e c k i n g t h e r e m a i n i n g
amount of built-in battery.
( R e f e r t o 3 . 7 C h e c k i n g
Battery Amount and Battery
Replacement)
8. Measuring Range Select Switch
T h i s i s a s w i t c h t o s e l e c t
an object to be measured
a n d i t s m e a s u r i n g r a n g e
depending on the purpose of
measurement. It consists of a
printed wiring switch.