Campbell GRANITE VOLT Series Product Manual page 41

These equations show that smaller notch frequencies increase measurement time. At the same
time, larger notch frequencies result in lower measurement resolution. Consider this trade-off
when designing your system.
Table 10-1: Multiplexed analog voltage measurement speed
Without input
or excitation
reversal
With input or
excitation
reversal
With input
and excitation
reversal
Burst
measurement
1
If the instruction uses excitation, calculate the measurement time separately and add 46 µs for each excitation
terminal used. Refer to Example 3 in
2
Refers to multiplexing circuitry internal to the VOLT 100 series series.
3
Default settling time, Tsettle, is 500 µs, minimum 100 µs.
NOTE:
The VOLT 100 series auto-calibrates to compensate for changes caused by changing
temperature and aging. This calibration occurs during downtime for the measurement
hardware. A time-consuming program may prevent background calibration if there is
insufficient downtime.
Measurement
time (µs)
Sample rate (Hz)
Measurement
time (µs)
Sample rate (Hz)
Measurement
time (µs)
Sample Rate (Hz)
Measurement
Time (µs)
Sample Rate (Hz)
Calculating network restrictions
1,2,3
(p. 51).
VOLT 100 series 34