Battery Installation
Two AAA batteries power the DT-51K. These allow the instrument to run for 40 hours with the backlight on and 150 hours with the
backlight off. The instrument will display, , signaling that the batteries are low, several hours before the functions becomes
inaccurate.
To replace the batteries, remove the screw from the battery door on the back of the instrument. Replace the two batteries, observing
battery polarity.
If your instrument is stored for a long period of time, remove the batteries.
How Time is Displayed
Time is displayed as a 20 second timer. After 19.99 seconds the displayed time wraps back to zero. To see total time, up to 19:59
minutes, press and hold the Time button.
Setting Limits and Warning Lights
Limits and warning lights warn you of conditions that could be harmful to your vehicle’s engine. They should be set at levels that
allow you to react to the visual warnings before engine damage occurs.
There are two ways to set your limits and warning lights:
♦With Your Instrument (see the next pages).
♦With Your PC, download cable and configuration software (page 9).
Setting the Engine Limits and Delay Time
POWER
EXIT
5. Press once to return to Set Up menu.
Press again to return to monitor/ record
mode.
From monitor/record, instrument enters Set Up
menu.SEL will flash ondisplay.
1.
O
R
With SEL flashing,press either
side button to enter Set Engine
Limits.
2.
MAX
E
N
G
I
N
E
3. O
R
Press either button to change the
number being displayed.Hold the
button to change the number
faster.
O
R
Press either button to set next
limit. Repeatsteps 3 & 4 until all
limits and calibration numbers
are set.
4.
MAX
E
N
G
I
N
E
SET UP
SET UP
EVENT
T
I
M
E
LIGHT
EVENT
T
I
M
E
Function limits are set in the following order: Temp (C1), Temp(C2), Tach (RPM1), Tach calibration number and Delay Time. If you
are not using any functions on your instrument, set its limit to any number greater than 200.
