VEGA VEGAFLEX 81 HART - integrated accumulator - Manual (Page 78)

78
11 Supplement
VEGAFLEX 81 • HART - integrated accumulator
44640-EN-130430
Operating time after 10 min. charging of
0 %
> 3 h
Operating time in mode 4 (sensor per-
manently on) with completely charged
accumulator
> 60 h
Temperature range
Ʋ Charge accumulator 0 … +45° C (+32 … +167 °F)
Ʋ Accumulator operation -20 … +60° C (-4 … +140 °F)
Temperature derating accumulator capacity
Ʋ +25° C (+77 °F) 100 %
Ʋ -10° C (+14 °F) 50 %
Electrical protective measures
Protection, depending on housing version
Ʋ Plastic housing IP 66/IP 67
Ʋ Aluminium housing, stainless steel
housing - investment casting, stain-
less steel housing - electro-polished
IP 66/IP 68 (0.2 bar) 5)
Ʋ Aluminium and stainless housing, in-
vestment casting (optionally available)
IP 66/IP 68 (1 bar)
Overvoltage category III
Protection class III
Approvals
Instruments with approvals can have different technical data depending on the version.
For that reason the associated approval documents of these instruments must be carefully noted.
They are part of the delivery or can be downloaded under www.vega.com and "VEGA Tools" as
well as under "Downloads" and "Approvals".
11.2 Dimensions
The following dimensional drawings represent only an extract of all possible versions. Detailed
dimensional drawings can be downloaded at www.vega.com/downloads under "Drawings".
5) The prerequisites for maintaining the protection rating are a suitable cable as well as correct mounting.