Download digital automotive analyser

DIGITAL AUTOMOTIVE
ANALYSER
■ STOCK No.61022
■ PART No.DMM13
• INSTRUCTIONS •
IMPORTANT: PLEASE READ THESE INSTRUCTIONS CAREFULLY TO ENSURE
THE SAFE AND EFFECTIVE USE OF THIS TOOL.
04/2000
INTRODUCTION
A Digital Autoranging Automotive Analyser, ideal for the professional or home user.
FEATURES
■ 24 position rotary function and range selector.
■ Recessed input terminals for added safety.
■ Measures D.C. volts, D.C. current, resistance, frequency, dwell angle, duty cycle,
diode check, tachometer and audible continuity readings.
■ Integral stand for easy visibility.
■ Supplied complete with PP3 (9V) battery, crocodile clip leads, test probes, heavy
duty inductive pick-up and protective rubber holster.
SPECIFICATION
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D.C. voltage 200mV, 2V, 20V, 200V, 600V. (accuracy 200mV +/-0.5%, 2V - 600V +/- 0.8%).
D.C. current - 10A (accuracy +/-3%).
Tach ranges: 600 - 2000 + 6000 - 12000 (x10) R.P.M. (accuracy +/-2%).
Diode test - open circuit voltage - 3.0V max..
Resistance 200, 2k, 20k, 2M, 20M ohms (accuracy 200=+/-0.8%, 2k - 2m 0.8%, 20M +/-1.5%).
Audible continuity tester - open circuit voltage - 2.8V max..
Dwell angle No of Cylinders
Range
Accuracy
3
0-120.0˚
4
0-90.0˚
5
0-72.0˚
+/- 2.0% +5dgts
6
0-60.0˚
8
0-45.0˚
■ Battery type 1 x 9 volt PP3.
■ Weight - 222g. (meter only), 355g. (with holster).
CAUTION:This instrument has no serviceable parts beneath its cover. Changing of the batteries or
fuse should only be carried out by qualified persons.
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DECLARATION OF CONFORMITY
We
Draper Tools Ltd. Hursley Road, Chandler’s Ford, Eastleigh, Hampshire.
SO53 1YF. England.
Declare under our sole responsibility that the product:
Stock No:- 61022.
Part No:- DMM13.
Description:- Digital Automotive Analyser.
To which this declaration relates is in conformity with the following directive(s)
89/336EEC & 73/23/EEC.
With reference to: EN50081/1, EN55022, EN50082-1, EN55024, EN61000-4-2-3-3,
ENV50204, EN 61010-1 & EN 61010-2-031.
JOHN DRAPER
Managing Director
04/2000
KNOW YOUR MULTIMETER
1. Function and range selector switch.
This switch is used to select the
function and desired range.
2. Display - LCD display unit.
3. V, Ω, Hz, arrows (Voltage, resistance,
dwell, tach) Jack socket.
Plug in the red (positive) test lead for
all voltage, resistance, dwell, tach and
diode measurements. Maximum
voltage 600V D.C.
4. ‘Com’ jack socket - plug in the black
(negative test lead).
5. ‘10A’ jack socket - (max 10 amps).
Plug in the red (positive) test lead for
measuring amperage to a maximum
of 10 amps.
✖✌
✕✌
✙✌
✗✌
✘✌
-2-
KNOW YOUR MULTIMETER cont’d
Diode test mode has been
selected.
Caution (see notes 3&5 on page
2 and warning on page 1).
Audible continuity check has
been selected.
Caution risk of electric
shock.
Indicates that the meter
battery voltage has dropped
excessively.
D.C. Voltage ranges.
OHM
A.
Unit for measuring current.
mV, V
Units for measuring voltage.
Resistance ranges.
TACH ranges
Ω, KΩ,MΩ Units for measuring
resistance.
DWELL ranges.
-3-
OPERATION
WARNINGS:Each time before you use this instrument, inspect the test leads, connectors and probes
for damage, e.g. cracks or breaks in the insulation. Any defective leads should be
replaced by a qualified person. If the value to be measured is not known, set the
selector switch to the highest range and reduce until a satisfactory reading is obtained.
D.C.VOLTAGE MEASUREMENT
1. Connect the red test lead to the ‘V/Ω/Hz’ jack socket and the black lead to the ‘com’
jack socket.
2. Set the selector switch to the desired DCV range.
3. Connect the test leads to the circuit to be measured.
4. Turn on the power to the circuit to be measured, the voltage value should appear on
the digital display along with the voltage polarity (if reversed only).
D.C. CURRENT MEASUREMENT
1. Connect the red test lead to the ‘10A’ jack socket and the black lead to the ‘com’
jack socket (max 10A).
2. Set the selector switch to the 10A range.
3. Open the circuit to be measured, and connect the test leads in series with the load
to be measured.
4. Turn on the power to the circuit to be measured, the ‘current’ value should appear
on the digital display.
RESISTANCE MEASUREMENT
1. Connect the red test lead to the ‘V/Ω/Hz’ jack socket and the black lead to the ‘com’
jack socket.
2. Set the selector switch to the desired OHM range.
3. WARNING - If the resistance to be measured is part of a circuit, turn off power and
discharge all capacitors before measurement.
4. Connect the test leads to the circuit to be measured.
5. The resistance value should now appear on the digital display.
TACH (R.P.M.) MEASUREMENT:IMPORTANT:For detailed and concise information on the correct use of this tool always refer to the
vehicle manufacturer’s workshop manual or the appropriate Haynes workshop manual.
1. Connect the red test lead to the ‘V/Ω/Hz’ jack socket and the black test lead to the
‘com’ jack socket.
2. Set the selector switch to the desired TACH range.
3. Insert the inductive pickup connecting terminal into the meter.
4. Connect the inductive pickup to a spark plug wire. If no reading is received, unhook
the clamp, turn it over and connect again.
NOTE: Position the inductive pickup as far away from the distributor and the exhaust
manifold as possible. Position the inductive pickup to within six inches of the spark
plug or move it to another plug wire if no reading or an erratic reading is received.
-4-
OPERATION - cont’d
FREQUENCY MEASUREMENT
1. Connect the red test lead to the ‘V/Ω/Hz’ jack socket and the black lead to the
‘com’ jack socket.
2. Select the frequency range that gives the most accurate measurement reading.
3. Connect the red test probe to the ‘signal out’ wire to be tested.
4. Connect the black test probe to ground.
DUTY CYCLE TEST
1. Connect the red test lead to the ‘V/Ω/Hz’ jack socket and the black test lead to the
‘com’ jack socket.
2. Set the selector switch to the ‘%duty’ position.
3. Connect the red test probe to the signal wire circuit.
4. Connect the black test probe to ground.
The illustration for a mixture control
solenoid is shown with the metering rod in
the closed position. The meter will display
the percentage of time the plunger is in the
closed position (low duty cycle) during one
duty cycle. Fig.1.
-5-
Fig.1
OPERATION - cont’d
Fig.2
DWELL ANGLE MEASUREMENT
IMPORTANT:For detailed and concise information on the correct
use of this tool always refer to the vehicle
manufacturer’s workshop manual or the appropriate
Haynes workshop manual.
1. Connect the red test lead to the ‘V/Ω/Hz’ jack
socket and the black test lead to the ‘com’ jack
socket.
2. Set the selector switch to the desired DWELL
range.
3. Connect the red test probe to the breaker points
or the ‘-’ terminal on the ignition coil.
4. Connect the black test probe to the ‘-’terminal of
the battery or ground.Refer to Fig.2.
DIODE MEASUREMENT
1. Connect the red test lead to the ‘V/Ω/Hz’ jack
socket and the black lead to the ‘com’ jack socket.
2. Set the selector switch to the
position.
3. Connect the red test lead to the anode of the
diode and the black lead to the cathode.
4. The forward voltage drop in mV will now be
displayed. If the diode is reversed the figure “1”
should show on the display.
AUDIBLE CONTINUITY TEST
1. Connect the red test lead to
the ‘V/Ω/Hz’ jack socket and
the black test lead to the ‘com’
jack socket.
2. Set the selector switch to the
position.
3. Connect the test leads to two
points of the circuit to be
tested. If the resistance is
lower than 30 ohms the buzzer
will sound. Fig.3.
Fig.3
WARNING:- See No.3 of
Resistance Measurement
(page 4).
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MAINTENANCE
The fuse rarely needs replacing, and almost always a blown fuse is the result of an
operator error. (See warning on page 4).
If the meter battery is in need of replacement ‘
’ will appear on the display.
The fuse should only be replaced by a qualified person.
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Notes
-8-
NOTES
-9-
NOTES
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DRAPER TOOLS LIMITED,
Hursley Road, Chandler's Ford,
Eastleigh, Hants. SO53 1YF. England.
Tel: (023) 8026 6355.
Fax: (023) 8026 0784.
http://www.draper.co.uk
e-mail: [email protected]
©Published by Draper Tools Ltd.
No part of this publication may be reproduced,
stored in a retrieval system or transmitted in
any form or by any means, electronic, mechanical
photocopying, recording or otherwise without prior
permission in writing from Draper Tools Ltd.