Endress+Hauser Proline Prowirl 72, Руководство по эксплуатации

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Proline Prowirl 72 9 Trouble-shooting
E Hauser 51
Faulty or highly-fluctuating flow
signal (contd.) • Check whether the correct fluid was selected in the APPLICATION function
(see Page 95). The setting in this function determines the filter settings and can
thus have an effect on the measuring range.
• Check whether the data for the K-factor on the nameplate match the data in the
K-FACTOR function (see Page 100).
• Check whether the device is correctly mounted in flow direction.
• Check whether the inner diameter of the mating pipe accords with the inner
diameter of the flowmeter (see Page 97).
• The flow must be in the measuring range of the device (see Page 59). The start of
measuring range depends on the density and the viscosity of the fluid. Density
and viscosity depend on temperature. Density also depends on the process
pressure in the case of gases.
• Check whether the operating pressure is affected by pressure pulsations (e.g. from
piston pumps). The pulsations can affect vortex shedding if they have a frequency
similar to the vortex frequency.
• Check whether the correct engineering unit was selected for the flow or totalizer.
• Check whether the current output or pulse value was correctly set.
The fault cannot be rectified or
some other fault not described
above has occurred.
In these instances, please
contact your Hauser
service organization. The following options are available for tackling problems of this nature:
Request the services of an Hauser service technician
If you contact our service organization to have a service technician sent out, please
be ready with the following information:
– A brief description of the error with information on the application.
– Nameplate specifications (Page 9 ff.): order code and serial number
Return devices to Hauser
The procedures on Page 8 must be carried out before you return a measuring device
requiring repair or calibration to Hauser.
Always enclose a fully completed “Declaration of Contamination” form with the
flowmeter. A copy of the form can be found at the end of these Operating
Instructions.
Replace transmitter electronics
Components in the electronics defective
→
order spare part
→
Page 53
Symptoms Remedial measures