find this on the site :

length and voltage on the MAP 3B

280 MM HG 0.66-0.76 volts
500 MM HG 1.36-1.45 volts
650 MM HG 1.81-1.91 volts
750 MM HG 2.11-2.20 volts


and the value volt / pressure for the MAP3B
Voltage Pressure
mv Kpa
0 0
250 17
500 33
750 49
1000 65
1250 82
1500 98
1750 114
2000 130
2250 146
2500 163
2750 179
3000 195
3250 211
3500 227
3750 243
4000 260
4250 276
4500 292
4750 308