Vega VEGABAR 81 4 … 20 mA_HART - Operating Instructions Bedienungsanleitung PDF herunterladen (Seite 65)

11 Supplement

VEGABAR 81 • 4 … 20 mA/HART

45018-EN-131010

Damping (63 % of the input variable),

adjustable

0 … 999 s

HART output values according to HART 7 (default setting)

Ʋ First HART value (PV) Linear percentage value

Ʋ Second HART value (SV) Physical unit of the application

Ʋ Third HART value (TV) Measuring cell temperature

Ʋ Fourth HART value (QV) Electronics temperature

Output variable - Second current output

For details on the operating voltage see chapter "Voltage supply"

Output signal 4 … 20 mA (passive)

Range of the output signal 3.8 … 20.5 mA (default setting)

Signal resolution 0.3 µA

Failure signal current output (adjustable) Lastvalidmeasuredvalue,≥21mA,≤3.6mA

Max. output current 21.5 mA

Starting current ≤10mAfor5msafterswitchingon,≤3.6mA

Load Load resistor, see chapter "Voltage supply"

Damping (63 % of the input variable),

adjustable

0 … 999 s

Dynamic behaviour output

Run-up time approx. 10 s

90 %

100 %

10 %

Fig. 42: Sudden change of the process variable. t

: dead time; t

: rise time; t

: jump response time

1 Process variable

2 Output signal

Dead time ≤45ms

Rise time ≤35ms(10…90%)

Step response time ≤80ms(ti:0s,10…90%)

Damping (63 % of the input variable) 0 … 999 s, adjustable

The output values can be assigned individually

1 2 ... 60 61 62 63 64 65 66 67 68 69 70 ... 83 84

Keine Kommentare

Vega VEGABAR 81 4 … 20 mA_HART - Operating Instructions Bedienungsanleitung Seite 65