Agilent Technologies TV 301 Mode D'emploi page 234

17 Technical Information
Interconnections
Speed setting: PWM input signal to set the pump speed. The PWM
signal characteristics must be the following:



The duty cycle percentage is referred to the low level portion of the PWM
NOTE
signal.
Figure 17
Programmable analog signal: this output signal is a voltage (from 0
to 10 Vdc) proportional to a reference quantity (frequency or power)
set by the user. The default setting is the frequency (see the following
example diagram).
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frequency: 100 Hz +/-20%
amplitude: from 5 to 24 V
duty cycle range: from 25% to 75% (t
rotational frequency from 187 Hz to 963 Hz linearly. With duty
cycle <25% rotational frequency = 187 Hz, duty cycle >75%
rotational frequency = 963 Hz
/T) corresponding to a
off
TV 301 Navigator User Manual / 87-900-946-01 (N)