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5
Handling and operation
NOTE
Modification of operation settings may result in faulty or wrong measuring results.
Multiple output functions are available, any of these functions can be used simultaneously.
2 potential-free digital outputs (Out.1 + Out.2), each freely programmable The passive current
loop is also used to power the flow meter at the same time.
Default settings:
Volume pulses; for external totalizer or monitoring systems.
Flow / Frequency; output 0...200Hz corresponding to flow rate.
Limiting switch; Switching function with programmable high and low flow rate (NO / NC).
Status switch; control functions for Errors, Alarms and Supply Voltage (NO / NC).
Analog current loop 4...20mA corresponding to actual flow rate or actual temperature of the
medium
Compensation to Norm-Volume:
Compensation to norm-volume can be turned on, this means that the volumetric expansion of
the medium is calculated using actual temperature to its normalized volume (15°C).
The following outputs will change from volume only to compensated norm-volume.
Therefore, output values will have the following functions:
Die folgenden Ausgänge wechseln von Volumen- zu Normvolumen-Signalen:
Volume pulses; for external totalizer or monitoring systems (50 % Duty cycle).
Flow / Frequency; output 0...200 Hz corresponding to flow rate.
Analog current loop 4...20 mA corresponding to actual flow rate or actual temperature of the
medium.
Mass flow calculation:
Calculation to mass flow can be turned on, this means that the normalized volume of the medium
based on base density (15°C) and actual temperature is calculated to mass / mass flow.
Therefore, the following outputs are added and can be set accordingly:
Mass pulses; for external totalizer or monitoring systems.
Mass Flow / Frequency; output 0...20 0Hz corresponding to mass flow rate.
Analog current loop 4...20 mA corresponding to actual mass flow rate.
Summary of Contents for CONTOIL VZF II
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