VEGA VEGABAR 61 4 … 20 mA_HART User Manual
Page 59
Long-term stability (similar to DIN 16086, DINV 19259-1 and IEC 60770-1)
A
pplies to digital interfaces (HART, Profibus PA, Foundation Fieldbus) as well as to analogue
current output 4 … 20 mA. Specifications refer to the set span. Turn down (TD) = nominal
measuring range/set span.
L
ong-term drift of the zero signal
<
(0.1 %
x TD)/year
Ambient conditions
A
mbient, storage and transport temperature
-
S
tandard version
-40 … +80 °C (-40 … +176 °F)
-
V
ersion for oxygen applications
11)
-40 … +60 °C (-40 … +140 °F)
-
V
ersions IP 66/IP 68, 1 bar and IP 68, PE
connection cable
-20 … +60 °C (-4 … +140 °F)
-
V
ersions IP 66/IP 68, 1 bar and IP 68,
PUR
connection cable
-20 … +80 °C (-4 … +176 °F)
Additional temperature influence by isolating diaphragm
T
he specifications refer to diaphragm material 316L as well as isolating liquid silicone oil. They are
only used for estimation. The actual values depend on the diameter, material and strength of the
diaphragm as well as the isolating liquid. They are available on request.
T
emperature coefficient of the isolating diaphragm in mbar/10 K with
-
F
lange DN 25 PN 40, Form C, DIN 2501
4.8
-
F
lange DN 40 PN 40, Form C, DIN 2501
1
-
F
lange DN 50 PN 40, Form C, DIN 2501
2
-
F
lange DN 50 PN 40 with extension
50
mm
1.9
-
F
lange DN 50 PN 40 with extension
100
mm
1.9
-
F
lange DN 50 PN 40 with extension
200
mm
2.1
-
F
lange DN 80 PN 40, Form C, DIN 2501
0.4
-
F
lange 1" 150 lbs RF ANSI B16.5; with
extension 2", 3"
1.8
-
F
lange 2" 150 lbs RF ANSI B16.5; with
extension 2"
2
T
emperature coefficient of a cooling ele-
ment, depending on the diaphragm-ø
0.1 … 1.5
T
emperature coefficient of a 1 m long
capillary line, depending on the diaphragm-ø
0.1 … 15
11)
U
p to 60 °C (140 °F).
VEGABAR
61 • 4 … 20
mA/HART
59
10 S
upplement
27519
-
EN
-081209