Seeking advice on vortex flowmeters

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This post was last edited by lant on 2010-11-12 at 18:25. Regarding the Pulse Width Limit function of the Coriolis vortex flowmeter, the options are YES or NO. What impact does this have on the operation of the vortex flowmeter, and when should it be enabled? What does RangeP mean? In my factory, the value for this parameter is 0.001 PULS/T (with a K coefficient of 318 P per cubic meter). What does this mean? I would like to ask the teachers, thank you. The corresponding explanations are as follows:
**Fct. 1.3.0 PULSE O/P**: This submenu groups functions related to Pulse output.
**Fct. 1.3.1 FUNCTION P Pulse output**: Select YES to enable Pulse output as per functions Fct. 1.3.2 to Fct. 1.3.3; selecting NO disables Pulse output (0 Hz).
**Fct. 1.3.2 RANGE P Pulse output range value**: Enter a value here for the number of pulses required per unit volume/mass. This value must always be set after the max flow value Fct. 1.1.2 has been set. For example, for a value of 0.1 Kg, 10 pulses per Kg means 1 pulse per 0.1 Kg. Pulse output programming is independent of the maximum flow rate. The various unit options for this range are listed below:
- For volumetric flow: • PULSE/m3 • PULS/litre • PULS/ft3 • PULS/cft • PULS/cuft • PULS/US.Gal • PULS/UK.Gal
- For normalized volumetric flow: • PUL./Norm.m3 • PULS/Norm.L • PULS/Sft3 • PULS/Scft
- For mass flow: • PULS/kg • PULS/t • PULS/Lb
**LIMITS**: (0 TO 0.5 Hz) / Q, where Q 100% represents the flow rate in volume or mass units per second.
**Fct 1.3.3 P. WIDTH.LIM pulse width**: You can limit the duration of the active pulse width of the Pulse output. Options are:
- YES: Limits the pulse width to 250 mSec.
- NO: Keeps the Pulse output at a 50% duty cycle. This function helps to minimize overheating of the totalizer coils.