PPE Digital to Analog V8 Tachometer Driver, Installation Manual

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Digital to Analog V8 Tachometer Driver
2
This unit can recalibrate an ignition system tachometer signal. Adjustment is
done by setting the cylinder count for the incoming engine signal (1-16) and
the cylinder count for the outgoing gauge signal (1-16). Fine adjustment can
also be done to make corrections to the gauge needle reading.
* If the NORMAL output does not drive your tachometer, use HI VOLT.
Setup
OUT: Set output (gauge) cylinder count. 1 – 16 allowed.
(Fine cal is set to 1.00)
A 2000 RPM signal will be generated reflecting the current cylinder
count for gauge testing.
IN: Change input (engine) cylinder count. 1 – 16 allowed.
(Fine cal is set to 1.00)
519: change between 5V low voltage “LO” and 12V normal “HI” signal types.
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 “IN”.
4. Press and release the INC switch until the desired setup option is
displayed: IN, OUT, 5 19, END
5. Press and release the SET switch to select the setup option.
6. Press and release the INC switch to change the setting. Press and
release the SET switch to save it.
Setup example:
If you have a factory 6 cylinder tachometer and are now using an 8 cylinder
engine, set the engine
cylinder count “IN” to 8 and the gauge cylinder count “OUT” to 6.
Not used. 1/2 normal tach output
Standard output to tachometer
High voltage output for some tachometers
Jumper to HI VOLT output for some
early Toyota tachometers
UNIVERSA
L
TACH INTERF
ACE
SET
IN
C
12V accessory Power
Ground
Sensor ground (not used)
Ignition system tach signal
(negative side of coil or tach output)
POWE
R
GROUND SENSOR GN
D
SIGNAL
IN
NOT USED HI VOL
T
NORMAL OUT 3