DIAGAUTO MST-1000 Manual de usuario
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MST-1000 USER MANUAL
MST-1000
1. SAFETY RULES
1.1Do not use the instrument if the instrument, the capacitive pick-up
or the flexible probe looks damaged, or if you suspect that the
instrument is not operating properly.
1.2When using the instrument, keep away from moving parts(fans,
drive belts, etc)and hot objects (exhaust pipes, muffler, catalytic
converter, etc), to avoid personal injuries and damage to the
instrument, the capacitive pick-up or the flexible probe.
1.3Do not connect or apply more than 42V DC, or any AC current
directly, to the capacitive pick-up or the flexible probe.
1.4Do not operate this instrument with the battery cover off
1.5To avoid electrical shock or damage to the instrument, do not
exceed the specified input limits.
Exceeding the limits listed above when using this apparatus, or not
observing the precautions listed above can expose you to physical injury
and permanently damage your instrument and or parts and components of
the vehicle under test.
2. TECHNICAL SPECIFICATIONS
2.1 General Specifications
Display: LCD 4(1/2) digits main display,2×3(1/2)digits for
2
secondary displays, indicators for low battery number of cycles,
ignition system, functions and measurement units.
Update rate: 3 per second (for LCD)
Ignition system comp: Coil on plug, coil near plug ，DIS ，
conventional and magneto
Engine cycles: 2 and 4 cycles and DIS
Power: 9 Volt battery, type MN1604
Auto Power off: Automatically power off after 3 min. of no
operation.
Battery life: Approximately 20 hours (w/alkaline battery)
Probe length: 13.5”(34 cm)Including capacitive pick.
Dimensions: 6”×4”×1.5”(158×100×37mm)without antenna.
Weight: Approximately 14 Oz. or 406g. (including battery)
Included accessories: Padded hard carrying case, user’s manual,
rubber holster and 1×9 Volt alkaline battery.
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2.2
Function
Measurement
Range
Accuracy/precision
Input
characteristics
RPM
2-19990RPM
Accuracy：0.5%±1
Input
Impedance: ：
100KΩ+1.5n
F（Minimum）
Input
Protection: ：
±42V DC
max
2 and 4cycles
and DIS
Spark KV
0-50KV
Repeatability ：
3%±1
Spark burn time
0-10ms
Accuracy：±0.1ms
3. OPERATION
3.1Instrument Description
1) capacitive pick-up
2) Flexible probe
3) LCD Display
4) Power ON/OFF/Reset button
5) Ignition System button
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6) Engine Cycles button
7) Main Function/ calibrate button
8) Secondary Function/capture button
9) Main display
10) Function/measurement units
11) Secondary display B
12) Secondary display A
13) Ignition
14) Number of cycles
15) Low battery indicator
16) Spark detected
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3.2.1 Low battery Indicator
The low battery symbol indicates the battery voltage is below
the minimum recommended and it
needs to be replaced with a new
battery.
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NOTES:
If the battery volt. Is low but still allows for the operation of
the instrument the low battery indicator
will turn and stay on until the battery is
replaced with a new one.
If the unit turns off immediately after being turned on .it
indicates that battery volt. is below the
the absolute minimum .and the battery
should be replaced to prevent
malfunction
3.2.2 Number of cycles
Displays the number of cycles (strokes)selected:2,4 or DIS
3.2.3 Ignition System
Displays the Ignition system selected for the measurement:
SPW for Spark plug wire, and COP
for coil on plug and coil near plug
3.2.4 Spark Detected
A flashing high volt. symbol indicates that sparks are being
detected in the ignition system
3.2.5 Secondary Display A
Depending on the setting chosen by pressing the Secondary
Function / capture button, it displays maximum readings, RPM
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or spark K volt. with measurement units and/ or function
3.2.6 Secondary Display B
Depending on the setting chosen by pressing the Secondary
Function / capture button, it displays maximum readings, RPM
or spark burn time , with measurement units and/ or function
3.2.7 Main display
It is the main display, and it can be set to show engine
RPM,spark KV or spark burn time by pressing the main
Function/calibrate button
3.2.8 Functions and measurement units
Displays the measurement units and /or function of the main
display The selected function with measurement units are
displayed as follows:
Display
Function
Measurement units
RPM
Tachometer
RPM(Revolutions per
minute)
BURN TIME mS
Spark plug burn time
mS(milliseconds)
Spark KV
Spark plug peak volt.
KV(1000 Volt.)
3.3 Buttons description and operation
3.3.1 Power ON/OFF and Reset button
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When the instrument is OFF, to turn it on press and hold the
‘Power ON/OFF/Reset’
button until the unit turns on (in approximately 1 seconds).
When the instrument is ON ,to turn it OFF press and hold the
‘Power ON/OFF/Reset’
button until the display turns OFF (in approximately 3
seconds).
When the instrument is ON ,press momentarily the ‘Power
ON/OFF/Reset’ button to
Reset the Maximum and Minimum and capture values.
Note: To extend battery life, the mst1000 will automatically turn OFF
after 3minutes of being id
Idle(i,e. no button press and no input signal). Turning the unit
off manually, when not in
use will prolong battery life.
3.3.2 Ignition System button
Press the ‘ ignition system’ button to select the ignition system
measuring mode that
matches the ignition system used used in the engine being
diagnosed, as explained
below . The selected setting will be shown on the display.
SPW(Spark Plug Wire ): Use this setting for all ignition
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systems equipped with high
voltage spark plug wires (e.g.: Conventional distributor,
magneto, distributorless or
waste spark ignition systems ) .
COP(Coil On Plug): Use this setting for ignition system in
which the ignition coil is
mounted near or directly on top of the spark plug.
3.3.3 Engine Cycles button
Press the ‘ Engine Cycles’ button to select the number of
cycles for the engine under
measurement. Each time the button is pressed the number of
cycles will change
between 2 cycles, 4 cycles, and DIS settings. The selected
setting will show on the
display.
For SPW (Spark Plug Wire) measurements mode, it can be set
to :2 or 4 cycles or DIS
(Distributorless or waste spark ignition system).
For COP (Coil on plug )measurement mode, it can be set to: 2
or 4 cycles.
3.3.4 Main Function/Calibrate button
Press this button to change which measurements is shown in
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the main (large) display.
There are three measurements to choose from: RPM, spark
burn time, and spark
KV. Every time this button is pressed momentarily the
measurement changes
from one function to the next.
Press and hold this button for three seconds to start the
automatic calibration of the unit
To the COP module type being measured. While calibrating,
the display will flash
“CAL” and will return to normal after the procedure is
completed(in about 3 seconds).
Calibration is disable when in SPW mode.
3.3.5 Secondary Function/ Capture button
Press this button momentarily to change what is displayed in
the two secondary
displays. The are two possible choices: the two measurements
not shown in the main
display er the Maximum and Minimum reading of the main
display.
Pressing and holding this button for three seconds enables
‘Capture mode’ which
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