PDi 920 User manual

COMPREHENSIVE
INSTRUCTION MANUAL
AUTOMOTIVE MULTIMETER
Complete "step-by-step" electrical systems
troubleshooting guide included.

DISCLAIMER:
This manual tells you howto use the meter to perform diagnostic
tests andtofindpossiblelocationsof vehicleproblems.
It doesNOT
tell you howto correct the problems.
All information, illustrations, and specifications contained in this
technical manualare basedonthe latestinformationavailableatthe
time of publication. The right is reserved to make changes at any
time without notice.
Introduction
About This Manual
Chapter Description
introduction Table of Contents
Safety Warnings
Getting Started Meter Basics
Meter Functions
Maintenance
Basic Diagnostic Testing Battery Testing
Voltage Drop Testing
Starter Motor Testing
Charging System Testing
Ignition System Testing
Basic Component Testing Computer Controlled Systems
Component Tests (Input)
Component Tests (Output)
Specifications General Specifications
Electrical Specifications

Introduction
Safety Cont'd.. .
Danger
Avoid electrical shock: Do not
touchthetest leads, tips or the
circuit being tested.
Do not try a voltage measure-
ment with the test leads inthe
20A or the mAterminal.
When testing for the presence of voltage or current, make sure the
meter is functioning correctly. Take a reading of a known voltage
or current before accepting a zero reading.
Choosethe proper range andfunctionfor the measurement. Donot
try voltage or current measurements that may exceed the ratings
marked on the FunctionIRange switch or terminal.
When measuring current, connect themeter inseries withthe load.
Never connect more than one set of test leads to the meter.
Disconnectthe livetest leadbeforedisconnecting thecommontest
lead.
The mA and the 20A terminals are protected by fuses. To avoid
possible injury or damage, use only
in circuits limited to400mA or
10A continuous 120A for 30seconds.
See also.. .
Fuse Replacement
r
Introduction
Safety Cont'd. ..
IMPORTANT
To maintain accuracy of the meter, replace the discharged battery
immediately when the battery symbol appears on the meter
display.
Avoid measuring error from outside interference: keep the meter
away from spark plug or coil wires.
Avoiddamagingthemeterwhentestingvoltage: Disconnectthetest
leads from the test points before changing functions.
Do not exceed the limits shown in the table below:
*
10Amp measurement continuous or 20Amp measurement for
30seconds maximun.
t1 I Ohms can not be measured if voltage is present, ohms can be
measuredonly inanon-poweredcircuit. However, the meteris
protectedto 500 volts.