Nivus OCM F, Инструкция по эксплуатации

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Parameter Setting
OCM F - rev. 05 / 06.04.2018 page 79
1
h_crit.
2
h-crit. min
3
Range of automatic Q/h relation
4
Determination of application coefficient
Fig. 25-6 Flow velocity determination graph
>auto. disch.
curve< Depending on the selected setting, entered values are verified and
corrected if necessary with the next measuring event (auto. disch-
curve >active<).
Another option is to permanently operate using the values entered in
“Manning Strickler” or “manual” (auto. disch. curve >not active<).
Fig. 25-7 Automatic discharge curve
Observe to avoid backwater
Please avoid backwater up to levels of 0.012 m if auto. discharge curve is >active<.
>v-crit determi-
nat.<
This menu is conceived to be used for commissioning at low filling
levels lower than
6.5 cm .
There are two options to determine the flow velocity:
-
Manning Strickler (if slope and roughness are known)
-
Manual (if a reference value can be determined)
Qualified personnel
Comprehensive expert knowledge is required to properly utilise these parameters. We
therefore recommend the NIVUS commissioning service or thorough device training.