Vega D77 Hydrostatic pressure transmitters Bedienungsanleitung PDF herunterladen (Seite 8)

8 Pressure transmitters D76 and D77

Measuring ranges

Nominal meas. range Gauge pressure Low pressure Pressure transmitters

resistance resistance D76 D77

D76 / D77

Gauge pressure

0 … 0.1 bar 10 bar / – -0.1 bar • –

0 … 0.2 bar 15 bar / – -0.2 bar • –

0 … 0.4 bar 20 bar / 10 bar -0.4 bar • •

0 … 1.0 bar 25 bar / 25 bar -1.0 bar • •

0 … 2.5 bar 35 bar / 25 bar -1.0 bar • •

0 … 5.0 bar 45 bar / 25 bar -1.0 bar • •

0 … 10.0 bar 60 bar / 25 bar -1.0 bar • •

0 … 20.0 bar 90 bar / 25 bar -1.0 bar • •

Zero -20 % … +95 % of nominal measuring range

adjustable

Span 3.3 % … 120 % of nominal measuring range

adjustable

Recommended turn down with

accuracy class 0.25 up to 1 : 5

Adjustment elements

Pressure transmitters

- terminal insert without adjustment elements

- adjustment insert 2 keys, 1 rotary switch

Measuring accuracy (similar to DIN 16 086, DIN V 19 259-1 and IEC 770)

Deviation

Reference conditions acc. to IEC 770

- temperature 15°C … 35°C

- moisture 45 % … 75 %

- air pressure 860 mbar … 1060 mbar

Determination of characteristics limit point adjustment acc. to DIN 16 086

Characteristics linear

Deviation in characteristics

< 0.25 % with accuracy class 0.25

Hysteresis

< 0.02 % ceramic measuring cell

< 0.05 % metallic measuring cell

Repeatability

< 0.02 % ceramic measuring cell

< 0.05 % metallic measuring cell

Influence of the ambient temperature in general

Average temperature coefficient

of the zero signal

1) 2)

< 0.15 %/10 K with accuracy class 0.25

Product description

Relating to the nominal measuring range.

In the compensated temperature range of 0°C … +80°C, reference temperature 20°C.

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 23 24

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