1. What is the maximum voltage of analog signal? The data sheet says 10V range. What exactly does range mean? I know it seems like a pretty silly question but I would really appreciate your help.
2. After establishing signal, how do I go about calibrating this?
6009 is 14 bit card with max range of ±10 v for Single-ended and ± 20 V range for Differential it means if you input voltage out of this range it will be show max saturated data(±10 or ± 20 V) also it is dangerous to overflow max voltage and you have to care about it this card it standard card with 5 mv standard system noise (0.5mv for Differential in 1 v max setting)
you have to read your sensor manual and find the range also you need to know if sensor is current base or voltage base if your sensor is current based you have to interpret that to voltage if you find your voltage is in low range you have to use signal conditioner if not just set your daq max voltage to sensor max voltage after that in your sensor will be indicate what is relation between voltage or current with data for example 0.1 volt for per 1 centimeter difference then use simple mathematics ( if it is linear sensor ) also take care if your sensor is Differential unltrasonic is not ass i know and it is simple (take care of your accuracy to this sensor need high precision card for best answer (24 bit)
