Preset Ranges; Software Switchable Ranges - Intab PC-Logger 3100i How To Use Manual

5.1 Preset ranges

The channels of "3100i":s are in groups of eight.
The channels in such a group may be individually set to one of the available
ranges.
Available ranges are +/-10V, +/-1000mV, +/-100mV, +/-50mV, 20mA and
thermo emf:s.
Temperature inputs measure thermoelectric voltages. These are then cold
junction compensated and linearized to present a correct value. All
temperature channels are presumed to have the same type of T/C connected.
"3100i" has, as standard, linearization tables for types B, E, J, K, R, S, T and
N.
All inputs (channels) have at least 25000 divisions. A division is the smallest
discernible change in input signal. The resolution of an input can be expressed
as FSR divided by the no. of divisions. Two examples:
a) A 10V input has a resolution of 10V/25000= ca 0.4mV.
b) A 50mV input has a resolution of 50mV/25000= ca 2µV.

5.2 Software Switchable Ranges

The "3100i" can, as an option, be fitted with software switchable input ranges.
This versatile option can be compared to the switch on an ordinary multimeter
with the difference that the user has to press a number of keys on the computer
instead of the meter.
Channels are individually programmable. T/C linearization is individually
selectable so that channels may even have different types of thermocouples
connected.
12
INTAB Interface-Teknik AB