MAN# 650530:A
1
DSL-1 E
DIESEL TACH INTERFACE UNIT
This unit can provide a tachometer signal to drive a standard ignition system
tachometer. The input signal can be from a tachometer output from the alternator, from a gear
tooth sensor reading the flywheel teeth, or from an engine timing gear sensor. In addition to
the setup mode calibration using gear tooth count, fine adjustment can be done during normal
operation to fine tune the gauge needle position if needed. The + and – buttons allow fine
adjustment to be performed with the engine running.
Here is a general overview of the DSL-1’s control functions.
Each of the different applications below will be described in detail starting on page 2 in
this manual.
Setup
Set input mode: Select the input mode depending on your application.
alt
: alternator ‘W’ terminal tach signal
fLy
: flywheel gear tooth sensor signal
tgr
: timing gear tooth sensor signal
1. Begin with the key off.
2. Press and hold the SET switch while turning the key on. The display will show the current
version code.
3. Release the SET switch. The display will show “
SEt
”.
4. Press and release the SET switch. The current input mode will be shown,
ALt
,
fLy
, or
tgr
.
Press and release the INC switch to change the input mode. Press and release the SET
switch to save it.
5. The CAL value will be set next. See the detailed instructions listed later in the manual for
your specific application.
Set output mode: Select the output gauge cylinder count. 4, 6, or 8
1. Begin with the key off.
2. Press and hold the SET switch while turning the key on. The display will show the current
version code.
3. Release the SET switch. The display will show “
SEt
”.
4. Press and release the INC switch until “
OUt
” is displayed.
5. Press and release the SET switch. The current cylinder count will be shown,
4
,
6
, or
8
. A
2000 rpm output signal will be generated reflecting the current cylinder count for gauge
testing.
6. Press and release the INC switch to change it; press and release the SET switch to save it.
