Agilent Technologies TwisTorr 74FS AG Rack Mode D'emploi page 219

Pins Name
2-1 Programmable
Analog Output
9-1 Frequency
Analog Output
When the analog output is set to provide pressure signal, the voltage level is proportional
to pressure level and it is generated by control unit elaborating the independent input by
the active gauge.
TwisTorr 74FS AG Rack Controller User Manual / 87-901-055-01
Description
Programmable analog output.
Can be related to: frequency,
power, pump temperature
(linear) or pressure read
by the external gauge.
The setting can be done by:
front panel or serial line
(win.111).
0V = 0Hz, 0W, 0°C
10V = 1167Hz, 70W, 100°C
See following chart for more
details
Analog output proportional to
frequency (linear).
0V = 0Hz
10V = 1167Hz
Technical Information
Controller Connection
Electrical Note
Optically isolated
Rload, min = 10kohm
Ripple Vpp,max =
200mV
Precision = 5%
Resolution = 40mV
Pin-1 negative
Pin-2 positive
Optically isolated
Rload, min = 10 kohm
Ripple Vpp,max =
200mV
Precision = 1%
Resolution = 40mV
Pin-1negative
Pin-9 positive
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