Hydro Logger H40
User manual
36
electronics for ecology
FIEDLER
PARAMETERS SETTINGS
The adjacent image shows an expanded menu of
activation conditions that can ultimately trigger an
automatic SMS alert. However, the sending of the
SMS still depends on the
Delay
parameter
.
This parameter is set in seconds and the activa-
tion condition must last as many seconds as the
value of the parameter without interruption before
sending the SMS. Even a short-term return of the
input to the previous state resets the time counter
and the time measurement starts from the begin-
ning.
Alert SMS activation conditions table:
Condition Description
Exceeding the
limit
The current value on the control channel has exceeded the size of the
Value
parameter.
If the "Calculation functions" method is selected from the list of measurement
methods, moving average, sum or difference of two adjacent channels and
some other special calculations can be registered on a separate channel.
Decline below
the limit
The current value on the selected channel drops below the size of the
Value
parameter. The same rules apply for the drop as for the overshoot.
Channel error
Occurrence of a communication error with the measuring probe connected
to the channel or a detectable fault in the output signal of the connected
sensor (current signal out of range, quantity out of the permitted range, ...)
Limit alarm -
settings
The limit alarm value on the control channel has been exceeded by the set
hysteresis
- i.e. the limit alarm has been activated.
Limit alarm -
cancellation
The limit alarm (return of the measured value to normal limits) has been ter-
minated on the control channel.
Steep Alarm -
Settings
A steep alarm value has been exceeded on the control channel.
Steep alarm -
cancellation
The steady alarm on the control channel has been terminated.
Diagnostic
channel discon-
nection
The set limit value on the control C-channel, i.e. the Iopto current (DG12) or
the Unap current (DG11), has been exceeded. The limit value is set on the
first "Basic" parameter tab in the "Power supply and diagnostics" section.
Diagnostic
channel discon-
nection
The measured value of the diagnostic channel has fallen below the set limit
value, i.e. low battery (DG4) or external supply voltage (DG6). The limit value
is set on the first "Basic" parameter tab in the "Power supply and diagnostics"
section.
When selecting a control channel, MOST will list all occupied channels including their
names. For the last two activation conditions, a list of diagnostic DG channels is offered.
Multiple limit messages can be activated with one channel.
The text length of one SMS message is limited to 50 characters. The text may contain
commas and semicolons, but these characters are converted to non-diacritical charac-
ters when creating the SMS message. The length of the text does not include the
station
name
parameter, which is usually automatically inserted at the beginning of the mes-
sage, or the text with the date and time of sending.
The value of this parameter is the threshold for activating the SMS warning message. The
value is entered in the same units of measurement that the control channel works with.
This parameter prevents frequent sending of the same SMS when the measured value
fluctuates around the limit value. The same SMS is sent only after the measured value
returns to normal by at least the
Hysteresis
value and then exceeds the limit value again.
Unlike alarm or relay parameters, it is not necessary to exceed the limit value by the
Hysteresis to activate the SMS message, but the SMS is sent immediately after the limit
value is exceeded.
D e l a y
A c t i v a t i o n
c o n d i t i o n s
C h a n n e l
Te x t
Va l u e
H y s t e r e s i s
