NI offers several options for conditioning thermocouple inputs. For more than 8 thermocouples, the best system is SCXI. An SCXI system consists of a chassis, modules that plug into the chassis, and terminal blocks that provide sensor connectivity. For 20 thermocouples, the best solution would be a 4-slot SCXI chassis (SCXI-1000), a 32-channel thermocouple input module (SCXI-1102), and a terminal block with CJC sensor (SCXI-1303). This system will provide amplification, 2 Hz lowpass filtering, and CJC for each thermocouple channel. The output from the SCXI system cables directly to your E-series DAQ device. You can learn more about SCXI, get pricing information, or order online at ni.com/sigcon.