Global Specialties 1522 User Manual
Digital Wattmeter
1522
Instruction Manual
1522
DIGITAL WATTMETER
Instruction Manual
M-00270 EDITION : 2 ( SEP., 2005 )
Global Specialties,LLC
22820 Savi Ranch Parkway
Yorba linda,CA 92887
WWW.globalspecialties.com
800-572-1028
SAFETY
INSULATION CLASS I, POLLUTION DEGREE 2:IEC 1010-1
This instrument has been built & tested as per IEC publications
prepared by Technical Committee No.66 ( Ref. No. CEI/IEC 10101:1990 ) : Safety requirements for electrical equipment for
measurement, control & laboratory use. This instructions manual
provides information and warning data which must be taken into
consideration by the user for safety of operator and instrument.
SAFETY PR ECAUTIO N S TO BE TAKEN BEFORE
SETTING THE INSTRUMENT INTO SERVICE :
Warning : Any interruption of the safety lead inside or
outside the unit or disconnection of the
protection ground terminal may render the
instrument dangerous. An intentional
disconnection is prohibited.
When the instrument is to be supplied via an auto-transformer, in
order to reduce the supply voltage available, make sure the common
terminal is connected to the neutral point (grounded) of the supply
circuit. The jack should only be into a plug fitted with a grounding
piece. The safety connection should never be interrupted by the
use of an extension cord without a protection (ground) lead.
The power supply cord must be connected to the mains network
(with good value), before connecting the control of the measuring
circuits.
SYMBOLS (as marked on equipment or in this manual) :
DANGER High Voltage.
PCB Components DPM-0295 PCB REV- 01 contd..
=======================================================================
Ref Designator Value
=======================================================================
PRESETS
PR1 2K5,HOR,CERMET(REF)
CAPACITORS
C1 220PF,50V,CD
C2 2.2uF,35V,EL,RAD
C3 0.1uF,50V,MP
C4 0.47uF,50V,MP
C5 0.01uF,50V,CD
C6 0.1uF,50V,CD
C7 0.1uF,50V,MP
C8 470uF,35V,EL,RAD
C9 10uF,35V,EL,RAD
C10 0.1uF,50V,MP
DIODES
CR1 1N4148
CR2 1N4148
CR3 Shorting Link
CR4 Not Used
CR5 Not Used
CR6 Shorting Link
IC's
Protective ground (earth) terminal.
ATTENTION : Refer to manual.
!
This symbol involves a mandatory
reference to the operating manual.
The User is required to refer and
follow the relevant instructions.
IC1 TL431
IC2 Not Used
IC3 7107CPL
TRANSISTORS
Q1 MPSA12
14
PCB Components DPM-0295 PCB REV- 01 contd..
=======================================================================
Ref Designator Value
=======================================================================
FND's
DS1 0.5''Common
Anode(GREEN)
DS2 0.5''Common
Anode(GREEN)
DS3 0.5''Common
Anode(GREEN)
DS4 0.5''Common
Anode(GREEN)
TABLE OF CONTENTS
CONNECTORS
CON1 5PIN,2.54MM MALE
CON2 3PIN,2.54MM MALE
PCB Components DPM-0295 PCB REV- 01
=======================================================================
Ref Designator Value
=======================================================================
RESISTORS
R1 2.7K,1/4W,5%,MFR
R2 2.4K,1/4W,5%,MFR
R3 27K,1/4W,5%,MFR
R4* 8K2,1/4W,5%,MFR
R5 100E,1/4W,5%,MFR
R6 39K,1/4W,5%,MFR
R7 100E,1/4W,5%,MFR
R8 12K,1/4W,5%,MFR
R9 20K,1/4W,5%,MFR
R10 470K,1/4W,5%,MFR
R11 Not Used
SECTION PARTICULARS PAGE NO.
1 GENERAL INFOR M ATION 1
2 SPECIFICATIONS 2
3 INSTALLATION 3
4 CIRCUIT DESCRIPTION 4
5 CALIBRATION 6
6 PART LIST & SCHEMATICS 8
R12 1M,1/4W,5%,MFR
R13 Not Used
R14 Not Used
13
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