Hydro Logger H1
User manual
48
electronics for ecology
FIEDLER
6.3.
Analog channel settings
The analogue channels form the basic structure of the recording part of the
Hydro Logger H1. The analogue or pulse signals are measured, converted to the
measured physical quantity and stored in memory in the selected units of mea-
surement. Free channels can also be occupied by a value calculated from the
values on the occupied channels (sum, difference and spec. functions). Each
channel can have its own archiving interval and alarm limits.
6.3.1.
Setup procedure and basic parameters
Each measurand occupies one channel in the station, whose parameters and
memory space are fully available to this one measurand only. The user has the
possibility to set a total of 8 analogue channels.
Do not confuse the channel with the input. A signal fed to one input can be pro-
cessed and archived on multiple channels. Selecting the channel serial number
is the first step in the setup.
The selection of the measurand from the offered list must be the second step,
because the list of offered units of measurement and the list of measurement
methods depend on the selected measurand.
In the list of measurement methods, you need to select the appropriate signal
type of the connected probe. For example, when measuring the level in a VDJ
with a submersible pressure transducer with standard current output, select the
method "
Current. Loop 4-20 mA
". When measuring flow with a propeller water
meter using an OPTO or REED sensor, select the "
Pulse
" measurement method.
The measurement method called "
Calculation Functions
" has an important
place in the Hydro Logger H1. With its help, it is easy to monitor the continuously
calculated moving sum or moving average for a configurable time interval on a
C h a n n e l
M e a s u r e d q u a n t i t y
M e a s u r i n g m e t h o d
The channel name
will be displayed on
the unit display and
in SMS
By pressing the right
mouse button over the se-
lected channel you can
copy, paste or delete its
parameters
Step 1 setup:
select a free
channel.
Step 2:
Select the mea-
surand
Step 3:
Select the mea-
surement method
Input may not corre-
spond to channel nu-
mber
Other important pa-
rameters dependent
on the measurand
and the measure-
ment method
The overlimit interval
will help to record in-
teresting waveforms
in detail
Hysteresis prevents
frequent
switching
on and off of the
alarm
The steep alarm is
activated on both
rise and fall above
the set speed
Activation of alarms can
trigger sending SMS or
change the basic archiving
interval to an overlimit
A limit alarm occurs when
the measured value exce-
eds the upper limit or falls
below the lower limit
Summary of Contents for H1
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