how to Calibrate a TAXI METER

**fes_786** · 6th February 2007

hi i got a taxi meter

a cygnus MR200 and a Cygnus tarrif transfer card

the card well its got a little chip on it

its : 93c66 with a little m in a white circle

this is supposed to be used to programme the meter

is it possible for me to put the tarrifs on my self??

cheers

**keyscoob** · 6th February 2007

I dont know anything about taxi meters but the 93c66 is a serial eeprom that could very well hold the data you mention. First thing is to read it with a programmer, a cheap one will do, like:

hxxp://cgi.ebay.co.uk/24Cxx-93Cxx-an...QQcmdZViewItem

**delambo** · 6th February 2007

This is also of interest to me. What is best is to read the eeprom and save the dump, then send away for re-calibration and compair to see what has changed. I will keep you posted as to what I mange to find out.