Casella CEL Sensus data logger unit - Manual (Page 15)

Table 1: Available Functions
Function
Name
Example Parameters Input
Channels
Result
none none() None Input channel No additional
processing is
performed,
output value
equals input
value
minhold minhold() None 1. Input Channel Holds most
negative value
until reset
maxhold maxhold() None 1.Input Channel Holds most
positive value
until reset
rollingavg rollingavg(60) 1.Averaging
period in
seconds
1.Input Channel Calculates
rolling average
over given
interval
vectoravg vectoravg(60) 1.Averaging
period in
seconds
1.Input Channel Calculates
vector average
over given
interval
degreeday degreeday(30,gain) 1.Limit value
2.gain -
accumulate
when value is
above limit
loss -
accumulate
when value is
below limit
1.Input Channel Calculate solar
gain (loss)
based on
percentage of
time (over 24
hours) that the
value exceeds
(is below) limit
windto windto() None 1.Input Channel Convert input
value of wind
from direction
to output value
of wind to
direction
crosswind crosswind() None 1.Wind speed
channel
2.Wind
direction
channel
3.Bearing
channel
Calculate cross
wind
component for
wind speed
using direction
and bearing
values
vapour vapour() None 1.Air
temperature
2.Humidity
Calculate the
saturated
vapour
pressure for
the air
temperature
and humidity
values
Commands SENSUS Digital Data Logger -
Users Handbook
Page 15 of 44