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VEGA D77 Hydrostatic pressure transmitters User Manual

Page 9

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Pressure transmitters D76 and D77

9

Product description

Long-term stability

Longterm drift of the zero signal

1)

- D76 (ceramic measuring cell)

< 0.1 %/year

- D77 (metallic measuring cell)

< 0.25 %/year

Other actuating variables

Calibration position

upright, diaphragm points downwards

Influence of the mounting location
- ceramic measuring cell

< 0.2 mbar

- metallic measuring cell

< 5.0 mbar

Vibration resistance

mechanical vibrations with 4 g and

5 … 100 Hz, tested acc. to the regulations of
German Lloyd, GL regulation 2

Operating conditions

Ambient conditions

Ambient temperature

-40°C … +60°C

Storage and transport temperature

-40°C … +60°C

Product temperature

-40°C … +60°C

Protective measures

Transmitter

IP 68

Housing

2)

IP 66 or IP 67, IP 68 (by fixed connected
PE-cable, cable length min. 5 m)

General data

Connection cables

Cable entry
- in connection housing

2 x M20 x 1.5 (for cable ø 5 … 9 mm)

- external housing VEGABOX 01

2 x M20 x 1.5 (for cable ø 5 … 9 mm)

Screw terminals
- terminal, adjustment insert

for conductor cross-sections up to 2.5 mm

2

- external connection housing

VEGABOX 01

for conductor cross-sections up to 2.5 mm

2

1)

Acc. to IEC 770, item 6.1.2 relating to the nominal measuring range.

2)

Use of suitable seal in the PG is necessary for maintaining the housing protection IP 65 or IP 67.