Operating instructions

8 Application examples

VEGAMET 625 • Double channel HART

28970-EN-150129

Further information on the dielectric constant are available in

the operating instructions manual of VEGAFLEX. For this appli-

cation, do not enter a dielectric constant directly on VEGAF-

LEX, because this value will be overwritten automatically by

VEGAMET 625

•

Adjustment

– Each VEGAFLEX is shipped with default settings. The values of

this adjustment are automatically tranferred to VEGAMET 625

during the setup of the interface measurement. Hence, manual

adjustment is usually not necessary. Should the instrument

require a special adjustment, this adjustment can be carried

outanytimeunder"Measurement loops - Adjustment".Keepin

mind that this adjustment must then be carried out separately

for all three measurement loops.

Fig. 13: Interface measurement

1 Reference plane

d1 Distance to the interface, meas. loop 1

d2 Distance to the level, meas. loop 2

TS Thickness of the upper medium (d1-d2), meas. loop 3 (displayed value)

h1 Height - Interface (displayed value)

h2 Height - Level (displayed value)

L1 Lower medium

L2 Upper medium

Note:

WhenusingaVEGAFLEX8x,thissensormustrstbesetupfor

interface measurement. The VEGAFLEX must not be locked by the

PIN, because the VEGAMET requires write access.

8.4 Pumpcontrol1/2(runningtimecontrolled)

Pump control 1/2 is used to control several pumps with the same

function dependent on the previous running time. Always the pump

with the shortest running time is switched on and the pump with

thelongestrunningtimeswitchedo.Withincreasedrequirement,

all pumps can also run at the same time dependent on the entered

Functional principle