1
Model
Model
Model
Model
DH1719A
DH1719A
DH1719A
DH1719A
Regulated
Regulated
Regulated
Regulated
Voltage/Current
Voltage/Current
Voltage/Current
Voltage/Current
Power
Power
Power
Power
Supply
Supply
Supply
Supply
User
User
User
User
’’’
’
sss
s
Manual
Manual
Manual
Manual
Da
Da
Da
Da
h
h
h
h
ua
ua
ua
ua
Company
Company
Company
Company
of
of
of
of
Electronic
Electronic
Electronic
Electronic
Instrument
Instrument
Instrument
Instrument
in
in
in
in
Beijing
Beijing
Beijing
Beijing