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Tachometer setup – Dakota Digital 3 User Manual

Page 19

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MAN 650066:E

19

Speed Output (

OUTPUT)

If a speed signal is needed for an ECM or cruise control, the SPD OUT terminal can be

used. This terminal can supply a 2000 ppm or 4000 ppm signal. If a BIM-01-1 is used to supply
the speedometer reading, this output is not available.
• When

“output” is displayed, press and hold SW1 until you get “ - ”.

• Release the switch. The current PPM output will be displayed.

• Press and release SW1 to toggle from “ 2k PPM” to “ 4k PPM”.

• When the desired setting is displayed, press and hold SW1 until “ - ” “DONE” is displayed.

• Release the switch to go onto the next menu item.

Exit setup
(

done)

This will allow you to exit the speed setup and go on to the next setup menu.

• When

“Set done” is displayed, press and hold SW1 until you get “ - DONE ”.

• Release the switch to go onto the next menu.

TACHOMETER SETUP

The control box can be set to read from 1-16 cylinder ignition signals. It can also be set

to read either 12 volt tach signals or 5 volt tach signals found on some engine computers. The
digital tachometer update rate can be adjusted between slow, mid, and fast. The rpm
warning/shift point can be adjusted from 2200 – 14800. The tachometer will read from 350 –
17,500 rpm. At RPM above 9990 the reading will be displayed as rpmx1000 (12,000=12.00).

You can also read the tach signal with the use of a bus interface module (BIM). Dakota

Digital offers the BIM-01-1 that will allow you to read the RPM from an ECU if you are installing
the system in a vehicle equipped with the OBDII diagnostic port or a drivetrain from a newer
vehicle. Most 1996 and newer vehicles have this.
• Press and hold SW1 while turning the key on.

• Release the switch and then press and release SW1 to get to the “TACH” setup menu.

• Press and hold the switch until “- tach” is displayed to enter the tach setup menus, then

release SW1.

• Now you can press and release the switch to scroll through the tach sub-menus, “T CAL”

“UPDATE” “WARN” “SIGNAL” “DONE”.

• When you get to the desired sub-menu, press and hold the switch to select it.

Engine cylinder setup (

T-CAL)

This menu is used to set the cylinder count of the tach signal. It is adjustable from 1 -16

cylinders.
• When

“T-CAL” is displayed, press and hold SW1 until you see “ - ”.

• Release SW1 and the current cylinder setting will be displayed.
• Press and release SW1 to increase the value from “ 01 ” – “ 16 ” or “ bus ”.

• When the desired setting is displayed, press and hold SW1 until “ - ” “DONE” is displayed

• Release the switch to go onto the next menu item.

NOTE: When selecting the cylinder count, be aware of tach signals coming from ECMs,
oftentimes a V-8 engine computer may output a 4 cylinder tach signal. This will be set for

04

” not “

08

” as you might expect.