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Analog input signals
There are two analog input channels from which analog input signals can be used for peak detection,
or data collection in UNICORN. It is possible to auto-zero the input signals, which means that the current
value will be displayed as 0 V in UNICORN. This can be done individually for the two analog input
channels. The auto-zero value is saved between runs and power-offs. The auto-zero value can be reset.
Description Parameter
-2000 to 2000 mV Input signal range
Analog output signals
There are two analog output channels from which analog output signals and system parameters, that
is, UV, cond, conc B, temperature and pH, are transferred to the external connected equipment, for
example, light scattering detectors or plotters.
Description Parameter
-1000 to 1000 mV Output signal range
The user defines the default output level for the selected signal. Default output
The user sets the desired output signal value of, e.g., mAU, % or mS, which
will corresponds to the full scale output voltage 1000 mV. Full scale output
The corresponding negative full scale output value is set automatically.
For example, if the full scale output is set to 2000 mAU, a UV value of 500
mAU will give an output voltage of 250 mV, and -100 mAU will give -50
mV output voltage. A signal value of 0 mAU, 0% or 0 mS will always give
an output voltage of 0 mV. Negative full scale out-
put
Zero is always a fix point. A desired output signal of, i.e., 0 mAU, 0% or 0
mS corresponds to an output voltage of 0 mV. At power-on, an output
signal of 0 mV is transferred to the connected equipment, until the output
signal range values are set. Fix point
No warning will be displayed in UNICORN if the analog output signal exceeds the set full scale
output value or is less than the set negative full scale output value.
Note:
116 ÄKTA pure User Manual 29119969 AB
3 ÄKTA pure external modules
3.5 I/O-box E9
3.5.2 Analog connector and signals