Vega VEGABAR 54 4 … 20 mA_HART Bedienungsanleitung PDF herunterladen (Seite 49)

10 Supplement

VEGABAR 54 • 4 … 20 mA/HART

36726-EN-130321

Ʋ Transport cover PFA

Weight approx.

0.8 … 8 kg (1.764 … 17.64 lbs), depending on process

tting

Max. torques

Ʋ ScrewsforPMC1",PMC1¼" 2 Nm

Ʋ ScrewsforPMC1½" 5 Nm

Ʋ G½ A, G¾ A 30 Nm

Ʋ G1 A, M30 x 1.5 50 Nm

Ʋ G1"forPASVE 100 Nm

Output variable

Output signal

4 … 20 mA/HART

HART output values according to HART standard 5.0

Ʋ Primary Value Pressure

Ʋ Secondary Value Temperature

Signal resolution 1.6 µA

Failure signal current output (adjustable) mA-value unchanged 20.5 mA, 22 mA, < 3.6 mA

Max. output current 22 mA

Load see load diagram under Power supply

MetNAMURrecommendation NE 43

Dynamic behaviour output

Run-up time approx.

10 s

90 %

100 %

10 %

Fig. 24: Sudden change of the process variable. t

: dead time; t

: rise time; t

: jump response time

1 Process variable

2 Output signal

Dead time ≤150ms

Rise time ≤100ms(10…90%)

Step response time ≤250ms(ti:0s,10…90%)

 Dependingontherespectiveinstrumentandtheprocesstting,thetemperaturecandeviatefromthereal

process temperature.

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Vega VEGABAR 54 4 … 20 mA_HART Bedienungsanleitung Seite 49