YIHUA 302D Operation Instruction

This
product
should
not
be
thrown
in
the
garbage.
In
accordance
with
the
European
directive

2012/19/EU,
electronic
equipment
at
the
end
of
their
life
must
be
collected
&
returned
to
an
authorized

recycling
facility.






Este
producto
no
debe
desecharse
en
la
basura.
De
acuerdo
a
la
directiva

europea
2012/19/EU,
los
equipos
electrónicos
al
final
de
su
vida
se
deberàn
recoger
y
trasladar
a
una

planta
de
reciclaje
autorizada.








Dieses
Produkt
sollte
nicht
mit
dem
Hausmüll
entsorgt
werden.

In
Übereinstimmung
mit
der
europäischen
Richtlinie
2012/19/EU
müssen
elektronische
Geräte
am

Ende
ihrer
Lebensdauer
eingesammelt
und
einem
autorisierten
Recyclingbetrieb
zugeführt
werden.
SPECIFICATION
Model
Number 302D
Control
Unit
Dimensions
Operating
Ambient
Temperature
Relative
Humidity
Output
Range
(Voltage)
0~2A
Output
Range
(Current)
Display
(Voltage
&

Current
Readings)
Reading
Accuracy
Reading
discrepancies
of
up
to
±1%,
(Voltage
&
Current)
C.V.
Mode
(Constant
Voltage)
Line
Regulation
Load
Regulation
Ripple
&
Noise
Temperature
Coefficient
C.C.
Mode
(Constant
Current)
Line
Regulation
Load
Regulation
Ripple
&
Noise
302D /303D /305D I /305D II /305D III
303D 305D
I 305D
II 305D
III
L250xW125xH155mm
±5mm
-10℃~40℃/14℉
~104
℉
<90%
0~30V
0~3A 0~5A
Three-digit
display

Four--digit
display

(LED
Nixie
Tube)
(LED
Nixie
Tube)
or
±1
unit
of
the
reading.
≤0.01%+2mV
≤0.01%+2mV
1mV(有效值/Valid
value)
≤200PPM/℃
≤0.1%+3mA
≤0.02%+3mA
2mA(有效值/Valid
value)
O P E R AT I O N
INSTRUCTION
Thank you for purchasing this product. Please read the manual
carefully before operating and keep this manual for future reference.
Made
in
China Statement: The company reserves the right to improve & upgrade products,
product specifications and design are subject to change without notice.
01 02
I. APPLICATIONS & FEATURES
This product is specifically developed for use in scientific research, product R&D,
test labs, higher education practical lessons, laptop repairs, electronic product
manufacturing lines and more. The voltage and current are continuously
adjustable within the specified range. Highly accurate and reliable, this product
is also equipped with a complete set of overload protection circuit, making it an
ideal choice for your industry.
II. PRODUCT REFERENCE
Control Panel
302D
、303D
、
305D
II
1
A mA
CURRENT VOLTAGE
2
CURRENT VOLTAGE
3
LO(mA)
HI(A)
C.C
4 FINE COARSE AMPS FINE
ON OFF
5
POWER
Regulated
DC
Power
Supply
English
305D
I
1
6
V A
CURRENT
2
7
8 CURRENT
9
3
C.V C.C
10
COARSE 4 FINE COARSE
GND ON OFF
11
5
12
POWER
13
04.07.03.252
6
V
VOLTAGE
8
VOLTAGE
9
C.V
10
FINE COARSE
GND
11
12
13