Veto VS-228 User manual

DIGITALAUTOMOTIVEANALYSER
Thank you for purchasing the product. Manufactured to a high standard this product will, if used according to these
instructions and properly maintained, give you years of trouble free performance.
IMPORTANT:
PLEASE READ THESE INSTRUCTIONS CAREFULLY. NOTE THE SAFE
OPERATIONAL REQUIREMENTS, WARNINGS & CAUTIONS. USE THE PRODUCT CORRECTLY
AND WITH CARE FOR THE PURPOSE FOR WHICH IT IS INTENDED. FAILURE TO DO SO MAY
CAUSE DAMAGE AND/OR PERSONAL INJURY AND WILL INVALIDATE THE WARRANTY.
PLEASE KEEP THESE INSTRUCTIONS SAFE FOR FUTURE USE.
1. SAFETY INSTRUCTIONS
1.1 PERSONAL PRECAUTIONS
√ When using this multimeter, please observe all normal safety rules concerning:
Protection against the dangers of electrical current.
Protection of the meter against misuse.
√Full compliance with safety standards can only be guaranteed if used with the test leads supplied. If
necessary,they must be replaced with genuine The test leads supplied with the same electronic ratings.
Failure to do so will invalidate the warranty.
×DO NOT use leads if damaged or if the wire is bared in any way.
×DO NOT use the meter if it has been damaged.
1.2 GENERAL SAFETY INSTRUCTIONS
WARNING! USE EXTREME CAUTION when working with high voltages.
√Familiarise yourself with the application and limitations of the multimeter as well as the potential hazards.
IF IN ANY DOUBT CONSULT A QUALIFIED ELECTRICIAN.
√Before commencing testing, follow instructions below and select the correct input sockets, function and
range on the multimeter.
√When the meter is connected to a circuit, do not touch any unused meter terminals.
√When the magnitude of the value to be measured is unknown beforehand, set the range selector to the
highest value available.
√Before rotating the range selector to change functions, disconnect test probes from the circuit under test.
WARNING! Never perform resistance, transistor, diode or continuity measurements on live circuits.
√Always take care when working with voltages above 35V DCor 25V ACrms. These voltages are considered a
shock hazard.
√Always keep fingers behind the probe barriers whilst measuring and DO NOT use when hands are wet.
×DO NOT touch the test leads, tips or the circuit being tested.
√Choose the proper range and function for the required measurement. Do not try voltage or current
measurements that may exceed the ratings marked on the Function/Range switch.
√When testing for the presence of a voltage or current, make sure the meter is functioning correctly. Take a
reading of a known voltage or current before accepting a zero reading.
×DO NOT test voltages above 600V ACor DC- the circuitry of the multimeter will be destroyed.

WARNING! NEVER connect the multimeter to a voltage source / live circuit when the rotary switch is set to
any other function apart from Voltage testing..
WARNING! Voltage checks on electrical outlets can be difficult and misleading because of the uncertainty of
connection to the recessed electrical contacts. Other means should be used to ensure that the terminals are
not “live”.
√Avoid damaging the meter when testing voltage. Disconnect the test leads from the test points before
changing functions.
×DO NOT attempt a voltage measurement with the test leads in the 20A or the mAterminal.
√ALWAYS discharge filter capacitors in power supplies and disconnect the power when making resistance or
diode tests.
×DO NOT use the multimeter in a potentially explosive atmosphere or where flammable material is present.
√ONLY operate the multimeter when the back cover is in place and fastened securely.
√If any abnormal readings are observed, the multimeter must be checked out by an authorised technician.
√ALWAYS turn off the multimeter and disconnect the test leads, before opening the back cover to replace the
fuse or battery.
√When not in use, store the multimeter carefully in a safe, dry, childproof location out of direct sunlight. If
storing for a long period of time, remove the battery. Storage temperature range: -15°Cto 50°C.
Note: The warnings, cautions and instructions referred to in this manual cannot cover all possible conditions and
situations that may occur. It must be understood that common sense and caution are factors which cannot be
built into this product, but must be applied by the operator.
WARNING! Engines produce carbon monoxide which is odourless and causes slower reaction time which
could lead to serious injury. An engine which is operating should be in a well ventilated area, or the vehicle's
exhaust should be connected to an adequate fume removal system.
√When working on a vehicle which is being tested or repaired ensure that the handbrake is on and the front
wheels are chocked to avoid the vehicle moving and causing injury.
√Wear suitable eye protection when testing or repairing a vehicle.
√When measuring current, connect the meter in series with the load.
√Disconnect the live test lead before disconnecting the common test lead.
√The mA and the 20A terminals are protected by fuses. To avoid possible injury or damage, use only in
circuits limited to 800mA or 20A for 30 seconds.
√To maintain the accuracy of the meter, replace the discharged battery immediately when the symbol 'BAT'
appears on the meter display.
√Avoid measurement errors from outside interference. Keep the meter away from spark plug and coil wires.
√Exceeding the electrical limits of this meter is dangerous and will expose you to serious or possibly
fatal injury. Carefully read and understand the specification limits of this meter together with the
FUNCTION TERMINAL INPUT LIMIT
DC/AC Volts,1Ohm/Continuity/Diode,
CAP., IR-TEMP.Adaptor, Type-
K TEMP., H
Duty, Ms Dwell, RPM V-Ω-RPM CAT IV 600VoltsAC DC
CAT III 750VoltsAC 1000V DC
AC/DC mA 600mA DC/AC
AC/DC20A 20A *20ADC/AC
* 20 Amp measurement for 30 seconds maximum.
Ohms can not be measured if voltage is present, ohms can be measured only in a non-
powered circuit.

warnings and cautions in this safety section.
2.INTRODUCTION & SPECIFICATION
INTRODUCTION: Includes new generation, 15-function, auto-ranging automotive diagnostic multimeter. Digital
display gives accurate indication of component outputs. Large, easy to read high contrast display with bright, white
backlight. Workshop-tough, durable bi-composite case with integral stand and auto power shut-off. High speed
processing circuitry reads standard automotive parameters including duty cycle and pulse width making this tool
ideal for testing fuel injection systems. Features auto-ranging, and data hold functions with overload protection on all
ranges. Includes relative functions including Min/Max and Peak Hold. Supplied with Inductive Coupler, test probes
and thermocouple in carry case.
SPECIFICATION:....................................................... Model No: VS-228 Diode Check.........................................................Yes
Tach (RPM)…2-10cyl, 4-Stroke 60-9000 (x1)rpm, 600-12000 (x10)rpm Back Light.............................................................Yes
Dwell:.........................................................................................4/5/6/8cyl Display Hold:........................................................Yes
AC Voltage:....................................................600mV, 6V, 60, 600V, 750V Auto Ranging:......................................................Yes
DC Voltage:..................................................600mV, 6V, 60, 600V, 1000V Inductive Coupler:................................................Yes
AC Current:............ .............................................60mA, 600mA, 6A, 20A Digits Height:...................................................20mm
DC Current:..........................................................60mA, 600mA, 6A, 20A Auto Power Off:....................................................Yes
Capacitance: ..........10nF, 100nF, 1000nF , 10μF, 100μF, 10mF, 60mF Low Battery Indicator:..........................................Yes
Frequency:....................................................................0.001Hz-9.99MHz Batteries (supplied):.....................................9V (PP9)
Duty Cycle:............................................................................... 1.0-99.0% Hi-Impact Case:....................................................Yes
Pulse Width:...............................................................................0.1-10ms Size (L x W x D):..............................190 x 90 x 62mm
Resistance:..............................600Ω, 6kΩ, 60kΩ, 600kΩ, 6MΩ, 60MΩWeight(Include 9V Battery):.............................. ..400g
Continuity:.................................................<50ΩContinuity Buzzer 2kHz
Temperature:...........................................-20 to +760°C, -4 to +1400°F
However, the meter is protected to 250 volts.

4. PUSH BUTTON FUNCTIONS
3. MAIN METER FEATURES
Original
4.1 Manual Range & Stroke 4/2(DIS),
Hz, %, ms +, CYL Button
Press to this button to select;
STROKE 4, 2DIS, Hz ,%, ms+, CYL
range& V/A/R/CAP/Hz manual Range
fig.1
Fig.2
Fig.3

4.1.1 Manual Ranging
The meter turns on in the autoranging
mode. Press the Range button to go to
manual ranging. The display icon " " will
appear. Each press of the range button
will step to the next range as indicated
by the units and decimal point location.
Press and hold the Range button for two
seconds to return to autoranging.
4.2 Mode Buttonutton
Press the mode pushbutton to select the
following functions;
DC/AC Current Diode/Continuity
4.3 Dataataata Hold (fig.5a)
The Data Hold function allows the meter
to "freeze" a measurement for later
reference.
4.3.1 Press the DATA HOLD button to “freeze”
the reading on the display.The “ ”
symbol will appear in the display.
4.3.2 Press the DATA HOLD button again to
return to normal operation.
4.4 Peak Hold (fig.5b)
The Peak Hold function captures the
peak AC voltage or current.The
meter can capture negative or positive
peaks as fast as 1.28 millisecond in
duration.
4.4.1 Turn the function switch to the ACA or
ACV position.
4.4.2 Press the PEAK button, Pmax will display.
4.4.3 The display will update each time a
higher positive peak occurs.
4.4.4 Press the PEAK button again, Pmin will
display. The display will now update and
indicate the lowest negative peak.
4.4.5 To return to normal operation, press and
hold the PEAK button until the Pmin or
Pmax indicator switches off.
4.5 max/min buttonbutton (fig.6a)
Fig.6a Fig.6b
Fig.4
Fig.5a
Fig.5b

5. METER METER FUNCTIONS
4.5.1 Press the MAX/MIN button to activate
the MAX/MIN recording mode. The
display icon "MAX" will appear. Press the
MAX/MIN button again, The display icon
"MIN" will appear. The meter will go to
manual ranging & display and hold the
maximum or minimum reading and will
update only when a new “max or min”
occurs.
4.5.2. Press the MAX/MIN key again and
a blinking “MAX MIN” will appear. The
meter will display the MAX-MIN reading,
To exit MAX/MIN mode press and hold
the MAX/MIN key for 2 seconds.
4.6 Backlight buttonbutton (fig.6b)
4.6.1 Press the BACKLIGHT button to turn the
backlighting ON.
4.6.2 Press the BACKLIGHT button again to
turn the backlighting OFF.
5.1 DC Voltage (DCV)
5.1.1 Select the Volts “ DCV” range with the
rotary switch.
5.1.2 The meter will automatically select the
best DC voltage range.
5.1.3 Insert Black lead in COM terminal.
5.1.4 Insert Red lead in V-Ω-RPM terminal
5.1.5 Touch the Black probe to ground or to the
negative (-) circuit
5.1.6 Touch the Red probe to the circuit
coming from the power source
IMPORTANT: Voltage must be
measured in parallel (Red probe
measuring circuit from power
source).
WARNING: When measuring voltage,
be sure the Red test lead is in the
terminal marked “V”. If the test lead is
in an Amp (A) or Milliampere (mA)
terminal, you may be injured or the
meter damaged.
5.2 Resistanceesistance (Ω)
IMPORTANT: If you are testing an
application that has capacitors in the
circuit, be sure to turn the power OFF on
the test circuit and discharge all
capacitors.Accurate measurement is
not possible if external or residual voltage
is present.
5.2.1 Select the Resistance “ Ω” range with
the rotary switch.
5.2.2 Insert Black lead in COM terminal.
5.2.3 Insert Red lead in V-Ω-RPM terminal
5.2.4 Touch the test lead probes across the
resistor to be tested.
5.3 Diode Check ( )
IMPORTANT: Turn the power OFF to
the test circuit
5.3.1 Select the Diode Check " " function
with the rotary switch and mode button.
5.3.2 Insert Black lead in COM terminal.
5.3.3 Insert Red lead in V-Ω-RPM terminal
5.3.4 Touch the Black test probe to the
negative (-) side of the diode.
5.3.5 Touch the Red test probe to the positive
(+) side of the diode.
5.3.6 Reverse the probes: Black to the
positive (+) side and Red to the negative
(-) side.
Note: A “good” diode will read low in one
direction and high in the other direction
when the probes are reversed (or vice
versa).A defective diode will have the
same reading in both directions or read
between 1.0 to 3.0 V. In both directions.

5.4 Audible Continuity ( )
IMPORTANT: Turn the power OFF on
the test circuit
5.4.1 Select the Audible Continuity " "
function with the rotary switch and mode
button
5.4.2 Insert Black lead in COM terminal.
5.4.3 Insert Red lead in V-Ω-RPM terminal.
5.4.4 Connect one test probe to each end of
the circuit to be tested.
5.4.5 If the circuit is complete, the meter will
beep continuously.
5.4.6 If the circuit is open, there is no beep and
the display shows OL (over limit).
5.5 CEAPACITANCE ( CAP )
IMPORTANT: Turn the power OFF to
the test circuit
5.5.1 Select the Capacitance “ CAP “ function
with the rotary switch.
5.5.2 Insert Black lead in COM terminal.
5.5.3 Insert Red lead in V-Ω-RPM terminal.
CAUTION: When checking in-circuit
capacitance, be sure that the circuit
has all power removed and all
capacitors are fully discharged.
5.5.4 Touch the test lead probes across the
capacitance circuit to be tested.
5.5.5 Read the measured value from the LCD
Display.
Note: (a) the measurement time of 10mF
and 60mF modes is a little long (MAX
Aprox.7s) .
(b) In order to obtain an accurate
reading, a capacitor must be discharged
before measurement begins.
(c) Discharging through the chip is quite
slow. We recommend the user to
discharge the capacitor with some other
apparatus.
5.6 AC or DC Current (A)
IMPORTANT: All current measured
flows through the meter.
It is important that you do not:
(A) Measure current greater than 600 Volts
AC or DC, with respect to ground.
(B) Do Not Exceed 30 seconds when
measuring continuous current
between 1A-20A.
5.6.1 Select the “20A” or “mA” range with the
rotary switch.
5.6.2 Press the Mode button to select AC or
DC.
5.6.3 Insert the black lead into the COM
Terminal.
5.6.4 Insert the red lead into the 20A or mA
terminal (select 20A if you are unsure of
the current draw).
IMPORTANT: Turn OFF all power to the
circuit or disconnect the circuit from
the power source.
5.6.5 Connect the Red probe to the side of the
circuit closest to the power source.
5.6.6 Connect the Black probe to the side of the
circuit to ground.
5.6.7 Turn the power ON and test.
Note: Current must always be measured
with the meter test probes connected
in series, as described.
5.7 Temperature (oC/oF)
IMPORTANT: To avoid heat damage to
the meter, keep it away from sources
of very high temperature. The life of
DIODE (- to +) Reverse probes (+ to -)
GOOD 0.4 to 0.9V Over Limit (OL)
Over Limit (OL) 0.4 to 0.9V
BAD
Over Limit (OL) 1.0 to 3.0V
1.0 to 3.0V Over Limit (OL)
0.4 to 0.9V 0.4 to 0.9V
Over Limit (OL) Over Limit (OL)
0.000V 0.000V

the Temperature Probe is also reduced
when subjected to very high
temperatures. Probe operating range
is –58º to 482 ºF.
5.7.1 Select the Temperature ºC or ºF
function with the rotary switch.
5.7.2 Insert the temperature probe connector
into the K-type thermocouple adapter.
Insert the adapter into the front of the
meter with the negative pin in the COM
terminal socket. Touch the end of the
temperaturesensor to the area or
surface of the object to be measured.
5.8 Frequency(Hz)
5.8.1 Select the “Hz” Frequency function with
the rotary switch.
5.8.2 Insert the black lead into the COM
terminal.
5.8.3 Insert the red lead into the V-Ω-RPM
terminal.
5.8.4 Connect the Black test probe to ground.
5.8.5 Connect the Red test probe to the
“signal out” wire of the sensor to be
Tested.
5.9 Dwell angle ( )
5.9.1 Select the “DWELL” function with the
rotary switch.
5.9.2 Insert the Black lead into the COM
terminal.
5.9.3 Insert the Red lead in V-Ω-RPM terminal.
5.9.4 Connect the Black test probe to ground.
5.9.5 Connect the Red test probe to the wire
that connects to the breaker points (see
illustration).
5.10 Duty Cycle (%)
5.10.1 Select the “% Duty Cycle” function with
the rotary switch.
5.10.2 Insert the black lead into the COM
terminal.
5.10.3 Insert the red lead into the V-Ω-RPM
terminal.
5.10.4 Connect the Black test probe to ground.
5.10.5 Connect the Red test probe to the signal
wire circuit.
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 during one duty
cycle.
Fig7
Fig8

5.11 ms-PULSE (Pulse Width) & ms-
PERIOD (Period)
5.11.1 Pulse Width is the length of time an
actuator is energized. For example, fuel
injectors are activated by an electronic
pulse from the Engine C Control Module
(ECM). This pulse generates a magnetic
field that pulls the injector nozzle valve
open. The pulse ends and the injector
nozzle is closed. This open to close time
is the Pulse Width and is measured in
milliseconds( ms). The most common
automotive application for measuring
pulse width is on fuel injectors. You can
also measure the pulse width of the fuel
mixture control solenoid and the idle air
control motor.
This exercise shows how to measure
Pulse Width (mS) on Port Fuel
injectors.
5.11.2 Select the “mS-Pulse” function with the
rotary switch .
5.11.3 Press the Trigger± button, the negative
(-)trigger slope is displayed on the display.
NOTE: The applied time for most fuel injectors is
displayed on the negative (-) slope.
5.11.4 Insert the black lead into the COM
terminal.
5.11.5 Insert the red lead into the V-Ω-RPM
terminal.
5.11.6 Connect jumper wires between the fuel
injector and the harness connector.
5.11.7 Touch the Black test probe to a good
ground at the fuel injector or the negative
(-) vehicle battery post.
5.11.8 Touch the Red test probe to the fuel
injector solenoid driver input on the
jumper cable.
5.11.9 Start the engine. A pulse width in
milliseconds should be read.
Note: Initially, the unit will read “OL”, then
readings will descend and stabilize to the
actual pulse.width. If “OL” remains,
re-check yourconnections.
Fig.9

6.ELECTRICAL SPECIFICATIONS
5.12. RPM and ×10RPM
5.12.1. Using the rotary switch, select either the
RPM range or the ×10RPM range (1,000
to 12,000 RPM) and multiply the
displayed reading by ten to get actual
RPM.
5.12.2. Press STROKE / DIS button to select
through RPM for 4-stroke, RPM for
2-stroke and DIS ignitions.
5.12.3. Connect the inductive pickup leads to the
meter.
5.12.4.Insert the black lead into the COM
terminal.
5.12.5. Insert the red lead into the V-Ω-RPM
Terminal.
5.12.6. Open the inductive pickup and place it
onto a spark plug wire. If no reading is
received, unhook the clamp, turn it over
and connect again.
NoteS:
5.12.7. Position the inductive pick-up as far away
from the distributor and the exhaust
manifold as possible.
5.12.8. Position the inductive pick-up to within six
inches of the spark plug or move it to
another plug wire if no reading or an
erratic reading is received.
5.12.9. RPM 4 : For RPM of 4-stroke engines
which have 1 ignition on every 4 engine
Strokes
5.12.10 RPM 2 : For RPM of DIS
( Distributorless lgnition System) &
2-stroke engines which Have 1 ignition
on every 2 engine strokes
PLEASE NOTE - THE RPM PICK-UP
HAS AN ADJUSTABLE SENSITIVITY
SWITCH THAT CAN ALSO BE USED TO
CORRECT AN UNSTABLE READING.
GENERAL INSTRUMENT SPECIFICATION
Instrument complies
with
IEC 1010-1 EN61010-1
Insulation Class 2, Double Insulation
Overvoltage category CATIII1000V/CATIV600V
Display 6000 counts LCD display
with function indication
Polarity Automatic, (-) negative
polarity indication.
Overrange "OL" marks indication
Low battery indication
"" is displayed when the
battery voltage drops below
the operating level
Measurement rate 3 times per second, nominal
Auto power off Meter automatically shuts down after approx. 15
minutes of inactivity
Operating
environment 0oC to 50oC (32oF to 122oF) at< 70% relative humidity.
Storage temperature -20oC to 60oC (-4oF to
140oF) at< 80% relative
humidity.
For inside use, max
height
2000m
Pollution degree 2
Power
One 9V battery (PP9)
Dimensions 190 x 90 x 62mm
Weight 400g(include battery)