VEGA D77 Hydrostatic pressure transmitters User Manual
Page 9
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.