Casella CEL Sensus data logger unit User Manual
Page 14
Format Specifier
Result
####.#
12.3 (Blank fill, sign optional)
1234.5
-1234.5
-1.2
+####.#
+12.3 (Blank fill, sign mandatory)
+1234.5
-1234.5
-1.2
0000.0
0012.3 (Zero fill, sign optional)
1234.5
-1234.5
-0001.2
+0000.0
+0012.3 (Zero fill, sign mandatory)
+1234.5
-1234.5
-0001.2
This determines only how data is presented to the user, data is still
processed and logged with full precision.
3.1.5 Polynomial
The factors assigned to this polynomial dictate how data values are
scaled/converted from raw voltage/count values to real physical quantities.
Each data channel has room for an 8-term polynomial, one constant and 7
X-terms.
The format for the polynomial is as follows:
C, X-term, X
-term, X
!
-term, X
"
-term, X
#
-term, X
$
-term, X
%
-term
The polynomial is calculated as follows:
y = P0 + xP1 + x
P2 + x
!
P3 + x
"
P4 + x
#
P5 + x
$
P6 + x
%
P7
Where: y =
the result
x =
the input value
P0 =
X-term
Pn =
Xn-term (where n = 1 to 7)
Define only those terms required by the conversion in question, all additional
unnecessary terms add to the processing time required for this channel.
3.1.6 Applied Function
The applied function property allows for further processing to be applied to
data values far beyond the scope of simple scaling. Functions exist that allow
averaging, min/max hold and crosswind calculation.
A list of available functions together with examples is given in Table 1 below.
Commands
Page 14 of 44
SENSUS Digital Data Logger -
Users Handbook