Description
This is a tachometer signal adaptor/converter module. It is useful when the tacho is calibrated for a different number of cylinders or different type of signal. It uses the existing signal as input, and provides a new fully configurable output signal.
Compatible inputs (existing signal):
- DC square wave, 5v or 12v (eg. ignition coil / hall effect sensor / signal from an ECU or ignition module)
- AC sine wave (eg. inductive type sensor)
Available outputs (new signal):
- DC square wave, 50% duty cycle, configurable to 5v or 12v pull-up resistor.
- 12v square wave with a high voltage inductive spike on the rising edge (the same as an ignition coil, for older tachometers that require the high voltage spike).
- AC coupled output, for tachometers that require an inductive type sensor (AC sine wave signal).
Adjustments:
- Basic Frequency / Speed adjustment is made with a series of 4 switches inside the module.
- Additional +/- 10% frequency adjustment over the basic setting is provided with a trim pot.
- Alternatively, the trim pot can be used to manually set a frequency from roughly 0.1x to 8x the input frequency.
- “Multi-fire filter” option, used when the ignition coil fires multiple times at low RPM (eg. Ford Barra engines).
The module has 7 wire connections (power, ground, 2 types of input, 3 types of output). Only 4 of these wires are used for most installations (however multiple output types can be used if required).
Small case size (80x40x20mm) making it easy to mount.
Printed instructions included – which detail installation and adjustment.
- This will not work with current-triggered tachometers as found on some old vehicles.
- It will work with voltage-triggered tachometers (that only connect to coil negative, not in series with the ignition coil).
- Some older model voltage triggered tachometers may require modification to work – fitment of a smaller value resistor on the input (see fitting instructions).
Cam –
Perfect for what I needed, without needing a large Tachometer to work the shift light. Daniel was awesome to deal with when troubleshooting the install, great service & experience!! A++
Andrew Chapman –
Have been trying to calibrate an after market Tacho fitted to a triumph Rocket for months. Been trying everybodys “ideas” for months with no luck. Last week I was put onto Mr MODULE, ordered the Tacho unit last Thursday, it arrived in WA on Monday, fitted to the bike on Tuesday in less than an hour. Works a treat.
Great service and delivery. Great product with clear instructions in real english, not “chinese english”. Overall great service and great product.
Too bad not all companies operate like this.
Thanks & Regards
Andrew Chapman