PICO ADC-10 User Manual page 12

pico ADC-10/12/40/42
This is used to specify how you wish to collect data from the ADC-10, and
what it is to be called within the program.
The channel name will appear on parameter menus. The two lines of
heading will appear in the headings of tabulation reports.
The measurement mode can be one of the following:
C
ADC counts
C
Instantaneous (Inst) Volts
C
AC volts, DC volts
C
frequency or dB.
ADC counts and Inst Volts are based on a single measurement: the others
are based on a number of measurements dependent on the minumum
frequency. if you wish to collect data at a sampling rate less than a second,
it is advisable to use ADC counts or Inst Volts.
The min frequency specifies the cut-off frequency for the averaging and
frequency measurement techniques use in measurement modes AC and
DC volts, frequency and dB measurements. The lower the minimum
frequency, the longer the time required to take each reading.
The number of readings specifies how many readings will be taken for
this channel during each sample interval. This is useful if the measured
value may change during the sample interval: for example, you might wish
to take several readings of a noise level, but only record the maximum
value.
The combination method defines how the readings will be combined to
form a sample. It can be minimum, maximum or average. Average is
useful to reduce the effects of noise: Minimum and Maximum can be used
to identify extreme values during the sample interval.
The total measurement time is the total time to collect all the readings for
this sample: it must be less than the sample interval.
Page 10
user manual
Version 1.0