FIEDLER H1, User Manual

Page: 69 / 82

Hydro Logger H1 User manual
FIEDLER
electronics for ecology
69
(overshoot, undershoot, binary state
change, measurement error, alarm).
▪
Resending of the next warning
message is activated only after the
current value returns to the allowed
area by at least the
Hysteresis value
and after the Limit value is exceeded
again for the set Delay time.
▪
It is possible to insert the current me-
asured value into the text of the war-
ning SMS using the #V character pair.
Not only the current measured value,
but also the channel name and the set units of measurement are trans-
ferred to the SMS text.
▪
The text length of one SMS must not exceed 50 characters (this limit
does not include automatically inserted texts -
Name tag , time, current
value).
PARAMETERS SETTINGS
The adjacent image shows an expanded menu of activation conditions that can
ultimately trigger an automatic SMS alert. However, whether the SMS is sent
still depends on the
Delay parameter .
This parameter is set in seconds and the activation 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 beginning.
Alert SMS activation conditions table:
Condition Description
Exceeding the
limit
The current value on the control channel has exceeded the Value
parameter.
For the integral variable, the SMS can be activated when the num-
ber of pulses, rainfall or flow rate in the current archiving interval
exceeds the set
Value . At the beginning of a new archiving interval,
the read quantities are always reset (set the delay parameter to
zero).
If the "Calculation functions" method is selected from the list of
measurement methods, the moving sum, moving average, sum or
difference of two adjacent channels and some other special calcu-
lations can be registered on a separate channel.
The calculated channel value will then be compared with the limit
value of the SMS being set. The calculated values can only be used
to activate the limit SMS and do not need to be archived
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 The occurrence of a communication error with the measuring
probe connected to the channel or a detectable fault in the output
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