Nivus OCM PRO CF Instruction Manual

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Nivus OCM PRO CF Instruction Manual Manual pdf 100 page image

®Instruction ManualOCM Pro CFPage 100 OCM Pro CF - Rev. 07 as of 04.12.2012- lock v-measurement (DI 1 can be configured to lock the measurement ex-clusively). The display will indicate >Measurement locked<. Flow values Nooutput of flow values to programmed analog and digital outputs.This function is sufficient particularly for applications with permanent, unsta-ble backwater conditions (overflow measurement in recipients tending tobackwater formation). To achieve this, the flow velocity measurement is go-ing to be either locked or released by a limit value contact using the overflowhead as threshold (e.g. separate echo sounder, float switch, conductivesensor, dynamic pressure switch or similar). A locked measurement meansthat measured flow velocities will be set to >0<. Hence the volume will becalculated by using V=0 which means that no analog or digital flow valuesare going to be output.Single velocities will be saved without being used for calculation purposes ifthe option to save single gates has been enabled.- runtime (the transmitter detects switching events via the digital inputs andsaves the runtime accurate to the second on the CF card if the storagemode is active)Please observe that the digital inputs are passive and therefore shall be sup-plied by an external 24 V DC power supply!The required signal current is 10 mA. Please ensure reliable conductivity byusing relay or end switch contacts made of high quality materialLogic Toggle between inverse and non-inverse input by pressing >ALT<. This meansthat e.g. slide valve signals can be configured as being normally closed, a con-stant signal level hence is equivalent to a disengaged end switch and cablebreaks can be detected without any problem.8.4.6 Parameter Menu "Analog Outputs"Fig. 8-68 Analog outputs – submenuFunction and measurement span of each analog output can be defined here.Basically 4 analog outputs can be chosen and set although transmitters type"S4" are equipped with 2 analog outputs only.Channel number Select from analog outputs 1–4 which one is to be set by using the followingparameters.