User`s manual

ix
USB-1900 Series
4.8 General Purpose Timer/Counter Modes............................ 58
4.8.1 Mode 1: Simple Gated-Event Counting .................... 58
4.8.2 Mode 2: Single Period Measurement ....................... 59
4.8.3 Mode 3: Single Pulse-Width Measurement .............. 59
4.8.4 Mode 4: Single-Gated Pulse Generation.................. 60
4.8.5 Mode 5: Single-Triggered Pulse ............................... 60
4.8.6 Mode 6: Re-Triggered Single Pulse Generation....... 61
4.8.7 Mode 7: Single-Triggered Continuous
Pulse Generation...................................................... 62
4.8.8 Mode 8: Continuous Gated Pulse Generation.......... 62
4.8.9 Mode 9: Edge Separation Measurement.................. 62
4.8.10 Mode 10: PWM Output ............................................. 63
5 Calibration......................................................................... 65
5.1 Loading Calibration Constants........................................... 65
5.2 Auto-Calibration (USB-1901/1902 only) ............................ 65
5.3 Saving Calibration Constants ............................................ 66
Important Safety Instructions.............................................. 67
Getting Service...................................................................... 69