Vega VEGABAR 40 HART Bedienungsanleitung PDF herunterladen (Seite 37)

VEGABAR 40 (HART

®

) 37

Diagnostics

~

1 2 3

+

–

–

–+

mA

Voltage

Current

V

External

energy source

Ammeter for local

control

mA

Checking pressure compensation

Open the housing of VEGABAR. The meas-

ured value must not change. However, if the

displayed value changes, compensation of

the atmospheric pressure is not ensured,

which will lead to distortion of the measured

value. Check the breather on the VEGABAR

housing.

Checking the electrical components

Voltage

- the terminal voltage on VEGABAR must be

at least 12 V DC

Current

Current value Condition

3.8 … 20.5 mA standard range for the output

current

0 mA signal cable interrupted

< 3.6 mA sensor electronics or pressure

sensor element defective

22 mA sensor electronics or pressure

sensor element defective

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