Campbell CR310 User Manual

Accuracy:
Assumes input reversal for differential measurements RevDiff. Does not include bridge resistor
errors or sensor and measurement noise.
Ratiometric accuracy, rather than absolute accuracy, determines overall measurement accuracy.
Offset is the same as specified for analog voltage measurements.
l
0 to 40 °C: ±(0.05% of voltage measurement + offset)
l
–40 to 70 °C: ±(0.06% of voltage measurement + offset)
24.5.3 Period-averaging measurement specifications
Use PeriodAvg() to measure the period (in microseconds) or the frequency (in Hz) of a signal
on a single-ended channel.
Terminals: SE1-SE4
Accuracy: ±(0.01% of measurement + resolution), where resolution is 0.13 µs divided by the
number of cycles to be measured
Voltage Range: 0 to 3.3 V
Minimum Pulse Width: 2.5 µs
Voltage Threshold: Counts cycles on transition from <0.9 VDC to >2.1 VDC
See also Period-averaging measurements(p. 101).
24.5.4 Current-loop measurement specifications
Two analog inputs terminals may be configured as independent, non-isolated 0-20 mA or 4-to-
20 mA current-loop inputs referenced to ground. One channel at a time is measured. Current is
measured using a 24-bit ADC.
Terminals: SE1-SE2
Range: 0 to 25 mA
Accuracy:
l
0 to 40 °C: ±0.14% of reading
l
–40 to 70 °C: ±0.26% of reading
See also Current-loop measurements(p. 92).
24. CR300 series specifications246

Campbell CR310 Specifications

General

Brand	Campbell
Model	CR310
Category	Data Loggers
Language	English