NSG 438
36
6.3.14. Trigger button
This button functions in three ways:
In the Single discharge mode just one discharge is made each time the
button is pressed.
In the Repetitive mode pulses are generated at the pre-determined rate
for as long as the button is pressed.
In the Preset counter mode pulses start to be generated when the button
is pressed and continue until the button is pressed again or until the
counter decrements to zero, whichever comes first.
6.3.15. Continuous operation
Continuous operation can be established to produce a repetitive stream of
discharges, thus:
Set the preset counter to read - - - - in the counter menu. This enables
continuous operation without any intervention by the counter.
Pushing the trigger button starts the continuous operation; pressing it
again stops the operation.
§ Continuous operation should only be utilized in cases
of real necessity since every ESD radiates electro-
magnetic disturbance the effect of which on the
environment must be taken into consideration.
§ The test area should be made out of bounds for
unauthorized personnel.
§ The test must be monitored throughout its duration.
§ When running on batteries alone the duration of the
test is naturally limited.
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