Design Technology TINY TACH 2A User manual
METER OPERATION
When the engine is started, the display will indicate the
RPM of the engine. When the engine is shut down, the
display will show hours and minutes.
2A OPERATING INSTRUCTIONS
TINY-TACH™2A - Adjustable Model
Can be used on most engines from single
cylinder lawn mowers up to V8 engines.
User Adjustable spark setting from 1 spark to
8 sparks per revolution.
45° = 8 sparks per revolution
60° = 6 sparks per revolution
90° = 4 sparks per revolution
120° = 3 sparks per revolution
180° = 2 sparks per revolution
360° = 1 spark per revolution
720°= 1 spark per 2 revolution
To Decrease RPM Reading
s
Model 2A Initial Setup:
Push and HOLD the SELECT button for 5 seconds.•
The display will show 360°•
Pushing the SELECT button again will toggle
through all options.
Stop at correct indicator for your engine•
(i.e. 360°, 120°, 90° etc.) see gure1
Wait for 30 seconds and the display will return to•
hours. The TINY-TACHTM will now display the cor-
rect RPM during operation.
Figure1
360
F
TIP: Most single cylinder air cooled engines idle
around 1400 RPM, if the RPM displayed is too low
set the value to “720”, If the RPM is too high set the
value to a lower Degree number “180”or lower.
JOB = Hours of operation since the timer was reset.
To view “JOB” time push the “SELECT” button once.
To reset “JOB” time: Push and Hold “SELECT” button
for 7 seconds. The display will show “RESET” and
show hours that have accumulated on the current job.
When you RELEASE the “SELECT” button the “JOB”
display will reset to “00:00”. You will begin to record the
next job interval.
12
:
34
:
JOB RESET
JOB TIMER
A RESET FUNCTION used for interval tracking.
123 45
TOT
:
TOT = Total Hours of operation.
-This is always displayed when the engine is off.
- TOT time CANNOT be reset.
3120
Typical RPM display when engine is running.
TOTAL TIME
All functions of the Tiny Tach
are accessible by pushing the
“SELECT” button.
SE LE CT
GAS T A CH & HOURMETER
00
:
00
:
TOT JOB SVC SVC2 MAX RESET SET
SE LE CT
GAS T A CH & HOURMETER
00
:
00
:
TOT JOB SVC SVC2 MAX RESET SET
RPM
INITIAL SETUP
0 to 19,999 RPM Display•
1/2 Second RPM Update•
Resettable Job Timer•
Total Hours•
Design Technology, Inc.
768 Burr Oak Drive, Westmont, IL 60559
(630) 920-1300
(123 Hours 45 Minutes)
TINY - TACH™
www.TinyTach.com
Made
In
America
TINY-TACH™
Tachometer and Hour meter
The TINY-TACHTM meter can
be mounted in the desired
location using either sheet
metal screws or by using
double sided tape. For best
results when using tape, be
sure to clean off any dirt,
grease and oil from the
desired mounting location
using a suitable solvent such
as denatured alcohol.
Find a suitable route to run
the pick-up wire to the spark
plug wire. It is not critical
how the wire is routed. It
can be put into existing
wire harnesses or wrapped
around and taped to metal
supports.
CAUTION - KEEP
WIRE CLEAR OF
EXTREMELY HOT
ENGINE PARTS SUCH
AS THE MUFFLER, AND
MOVING PARTS.
Wire damage (cuts or burns)
will cause the wire to short and
your TINY-TACHTM will stop working. Wire damage is not covered under warranty.
The RED WIRE should be slipped over an insulated section of the spark plug wire using about 3* turns. PLEASE BE
CERTAIN YOU DO NOT WRAP THE RED WIRE TOO CLOSE TO THE SPARK PLUG THAT ENGINE VIBRATION WILL
ALLOW IT TO COME INTO DIRECT CONTACT WITH THE METAL PORTION OF THE SPARK PLUG. Most engines
have a spark plug cap and will prevent this from happening. After the connections are made, any excess wire can be coiled
up and taped to a convenient area.
* If the signal is not strong enough, you can add one wrap at a time until your signal is clear. The signal strength is controlled
by the number of wraps (too many wraps will pick up electronic noise and give a faulty reading.)
WARRANTY: Design Technology, Inc. warrants that for a period of one year from time of purchase it will repair or replace the TINY-TACHTM,
without charge, if it fails to function properly due to a defect in workmanship or materials in the instrument. Damage caused to the wires
and cables by improper care or use is expressly excluded from this warranty. Used TINY-TACHTM purchased through a 3rd party
reseller will be warranted at the discretion of Design Technology, Inc.
The TINY-TACHTM should be returned, prepaid to:
Design Technology, Inc., 768 Burr Oak Drive, Westmont, IL 60559. (630) 920-1300 FAX (630) 920-0011.
In order to assure that you receive the correct model for your application, we request that you please enclose a short note describing the
problem, the type of engine and number of cylinders.
Thank you. We hope you enjoy using your new TINY-TACHTM
Do not CUT
the BLACK wire
WRAP RED WIRE 3-4 TURNS AROUND
SPARK PLUG WIRE.
NOTE: CUT OFF EXCESS WIRE ONLY
AFTER THE UNIT IS READING CORRECTLY
Flush Panel Mount Surface Mount
Can be Recessed into Panel
COIL UP ANY EXTRA
WIRE (DO NOT CUT WIRE)
AND SECURE AWAY FROM
EXTREME HEAT AND
MOVING PARTS
ATTACH WHITE WIRE TO ENGINE
GROUND. LOOSEN CONVENIENT
BOLT ON ENGINE OR FRAME
THEN SLIP SOLDER LUG UNDER
2.045
1.540
2.500
Connecting the Wires
TINY - TACH™
www.TinyTach.com
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