Measurement Computing IOtech 640 Series - Manual (Page 47)

640 & 650 Series 878893 Analog Signals 6-5
Output BNC (640 units only)
eZ-Analyst Only
WARNING
When the Signal Generator is started [in eZ-Analyst] the device that is connected to
Source Output will receive excitation and could possibly cause injury to personnel. Be
aware of which device is receiving excitation and post adequate notice to keep individuals
and physical objects clear of the device.
IOtech 640e and 640u have a voltage source, which can be set in frequency and in discrete amplitudes [see specs].
The Output can be used as a test source for the input channels or as excitation for other system elements, such as the
amplifier for a shaker table. All source output parameters are software controlled and the actual output signal leaves
the device through the 640’s output BNC connector.
Detailed information on the excitation source and its operation can be found in the eZ-Analyst manual. With respect
to eZ-Analyst, the “Output Channel Setup” tab [under the Edit pull-down menu] is used to set the SOURCE
OUTPUT channel to “Active” and the Control pull-down menu can be used to turn the Signal Generator “On.”
Do not confuse excitation source with source level, as the latter term refers to transducer bias current.
Analog Triggers
IOtech 640 and 650 signal analyzers can be triggered per software configuration. The 650 models can be
triggered in regard to their 5 analog input channels. The 640 models can be triggered in regard to their 4
analog input channels. In addition, the 640 models can be triggered for analog waveform output.
Since all 640 and 650 triggers are dictated by software, refer to your associated software documentation for
detailed information regarding triggers and how to set them.