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Campbell Scientific CS725 Snow Water Equivalency Sensor User Manual

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CS725 Snow Water Equivalency Sensor

2. [.h]


The [.h] command is used to obtain the current histogram results. This
information would normally be used for diagnostics or by a user who
requires an analysis of the gamma radiation spectrum. The counts for
1024 bin values are returned in this command. The format is as follows:

12 This line represents the counts for BIN#1
345 This line represents the counts for BIN#2
333 This line represents the counts for BIN#3
.
.
.
30 This line represents the counts for BIN#1024

3. [.hp]


The [.hp] command is used to obtain the current bin positions for the Tl
and K peaks. In general the Tl peak should be near 438 and the K peak
should be near 245. It is important for the software to find the peaks
properly in order to obtain proper SWE measurements.

In most cases, the sensor must be monitoring for at least two minutes. It
may take as long as a full hour if the radiation counts are very low.

Once the command is typed, the following is immediately displayed:

This operation may take 1-2 minutes


Once the calculation has been completed, the values are displayed. Even
under ideal conditions, the values are allowed to vary from the target
values. If the value does vary by more than 30 BINS, then there may be
issues with the sensor finding the proper peaks. The displayed values are
formatted as follows:

Tl (nom = 438)

K (nom = 245)

435.4

244.7

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