ADLINK Technology USB-2401, User Manual

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vi Table of Contents
2.4.2 Wall Mounting ........................................................... 25
3 Operation ........................................................................... 27
3.1 Functional Layout............................................................... 27
3.2 Signal Sources................................................................... 27
3.2.1 Floating Signal Source.............................................. 27
3.2.2 Ground-Referenced Signal Source........................... 28
3.3 Signal Connection.............................................................. 28
3.3.1 Voltage Input Mode .................................................. 28
3.3.2 Current Input Mode................................................... 29
3.3.3 Full Bridge and Half Bridge Input Mode.................... 30
3.3.4 Thermocouple Input Mode........................................ 31
3.3.5 RTD Input Mode ....................................................... 32
3.3.6 Wire Resistance Mode.............................................. 34
3.4 AI Data Format................................................................... 35
3.5 ADC Sampling Rate........................................................... 36
3.5.1 Software Polling Data Transfer
(Non-Buffering Programmed I/O).............................. 36
3.5.2 Continuous Acquisition Mode ................................... 37
3.6 Programmable Function I/O............................................... 37
3.6.1 TTL DI/DO ................................................................ 37
3.6.2 General Purpose Timer/Counter............................... 38
3.6.3 General Purpose Timer/Counter Modes................... 39
4 Calibration ......................................................................... 45
Important Safety Instructions............................................... 47
Getting Service ...................................................................... 49