Mace HydroMace XCi, Product Manual

Page: 115 / 270

Measurement and Logging interval
The measurement interval is the time at which the device ‘wakes up’ to measure/calculate the values
on each of the configured channels. Data is logged in the data file ONLY at the logging interval. The
measurement interval will always be shorter than or equal to the logging interval. In the case of the
measurement interval being shorter than the logging interval, then the data logged will be the average
of those values calculated per measurement interval.
NOTE: The measuring and logging intervals available, are affected by other
settings in the XCi configuration: eg. integration time and sensor power. The
XCi will always warn the user of the implication of changing a setting that
impinges on these intervals.
NOTE: The logging interval can only be a multiple of the measuring interval.
5. Click “ Apply ” and the main “ Device Settings ” dialogue box will re-appear.
Sensor power
When enabled (via the check box), this function instructs the device to switch the 12VDC power line ON for
sensors wired to I/O card/s. A warmup time must be set by the user, suitable for the sensor/s application. For
example, a 4-20mA output downward looking ultrasonic depth sensor may require a 25 second warm up prior
to recording a stable depth reading.
NOTE: In the case where multiple sensors are powered by the 12VDC switched
power, the warmup time should be set according to the sensor that requires the
longest warmup.
NOTE: This check box will be greyed out, if no cards that support switched power
are installed in the XCi device
WARNING: The maximum system current available for powering sensors attached
to ALL I/O cards is 1.25 Amps at 12VDC
MACE XCi User Manual - 115 -