Diatron DT-51S Manual - Halaman 5

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Tach Calibration Number (RPM1)

The Tach limit requires two separate parameters. The first is the maximum revolutions per minute (RPM) for safe engine operation.
The second number, the Tach calibration, allows the instrument to display the correct RPM for your engine. The instrument divides
the Tach input signal by the Tach calibration number. This number can be between 1 and 16.
The most frequently used numbers are:
2 cylinders - set at 2 or 4
If you are unsure of the Tach calibration number for your engine, experiment. For example, if your calibration number is currently set
at 2 and the RPM displayed is double what it should be, set the number to 4.

Setting the LED Warning Lights

Multiple warning lights can be set to the same function, but only one function can be set to a light.
1.
From monitor/record, instrument enters Set Up menu.
SEL will flash on the display.
SET UP
2.
PLAY
SLL will flash on the display.
PAUSE
3.
E
O
N
T
G
I
R
I
M
N
E
E
MAX
EVENT
4.
PLAY
Changes the function the light will correspond to.
PAUSE
5.
O
R
LIGHT
SET UP
6.
E
O
N
T
G
I
R
I
M
N
E
E
MAX
EVENT
7.
EXIT
Press once to return to Set Up menu.
Press again to return to monitor/ record mode.
POWER
PC Software: Set Up & Analysis
All limits and warning lights can be set on your PC with our configuration software. This software also allows you to change which
function is displayed in each window. You can set different beacon signals as lap and splits. Recorded information can be
downloaded to a PC. The instrument must be in Monitor/Record mode, with no Tach signal when hooked up to a computer. The
instrument does NOT need sensors hooked up. Download the software from www.digatronusa.com. Attach the download cable to
the white connector on your instrument. Attach the other end to any serial port on your PC. Then follow the computer's instructions.
3 cylinders - set at 3 or 6
With SLL flashing, press either button
to enter Set LED Warning Lights.
Press either button to change the
number being displayed. Hold the
button to change the number faster.
Press either button to set next light.
Repeat steps 4 - 6 until all lights are
set.
4 cylinders - set at 4 or 8