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VEGA VEGAFLEX 67 (-20…+250°C) 4 … 20 mA_HART four-wire User Manual

Page 45

background image

1

0

m

(3

2

.82

f

t)

1

1

m

(3

6

.09

f

t)

1

2

m

(3

9

.37

f

t)

1

3

m

(4

2

.65

f

t)

1

4

m

(4

5

.93

f

t)

1

5

m

(4

9

.21

f

t)

1

6

m

(5

2

.49

f

t)

1

7

m

(5

5

.77

f

t)

1

8

m

(5

9

.06

f

t)

2

3

m

(7

5

.46

f

t)

1

9

m

(6

2

.34

f

t)

2

4

m

(7

8

.74

f

t)

2

6

m

(8

5

.31

f

t)

2

0

m

(6

5

.62

f

t)

2

1

m

(6

8

.91

f

t)

2

2

m

(7

2

.18

f

t)

2

5

m

(8

2

.02

f

t)

0

1

2

3

4

5

6

7

8

9

10

1

2

Fig. 18: Relation dielectric figure (ε

r

) of the upper medium to the max. probe length

1

Dielectric figure (ε

r

) of the upper medium

2

Max. probe length

Output variable

O

utput signal

4 … 20

mA/HART (active)

C

ycle time

min. 1 s (dependent on the parameter setting)

S

ignal resolution

1.6 µA

F

ailure signal current output (adjustable)

mA-value unchanged 20.5 mA, 22 mA, < 3.6 mA

M

ax. output current

22

mA

L

oad

see load diagram under Power supply

D

amping (63 % of the input variable)

0 … 999

s, adjustable

F

ulfilled NAMUR recommendations

NE

43

HART

output values

-

HART

value (Primary Value)

D

istance to the interface (d1)

-

HART

value (Secondary Value)

H

eight of the interface - scaled (h1)

-

HART

value (3rd Value)

D

istance to the level (d2)

-

HART

value (4th Value)

H

eight of the level - scaled (h2)

VEGAFLEX

67 • 4 … 20

mA/HART - four-wire

45

10 S

upplement

32308

-

EN

-120329