Ambient Conditions - Vega VEGAWELL 52 Operating Instructions Manual

Long-term stability (according to DIN 16086, DINV 19259-1 and IEC 60770-1)
Applies to digital HART interface as well as to analogue current output 4 ... 20 mA. Specifications
refer to the set span. Turn down (TD) is the relation nominal measuring range/set span.
Long-term drift of the zero signal
Total deviation (acc. to DIN 16086)
The total deviation F
t
term stability:
F = F + F
t p s
F = √((F ) + (F ) )
2 2
perf T Kl
With
Ʋ F : F , total deviation
t total
Ʋ F : F , basic accuracy
p perf
Ʋ F : F , long-term drift
s stab
Ʋ F : Temperature coefficient (influence
T
of medium or ambient temperature)
Ʋ F : Deviation
Kl

Ambient conditions

Ambient temperature
Ʋ Suspension cable PE
Ʋ Suspension cable PUR, FEP
Storage and transport temperature
Process conditions
Max. process pressure, transmitter
Ʋ Measuring range 1 bar (15 psi)
Ʋ Measuring range 2.5 bar (35 psi)
Ʋ Measuring range ≥ 5 bar (70 psig)
Pressure stage, process fitting
Ʋ Unassembled screw connection
Ʋ Thread on the housing
Product temperature, depending on the version
Suspension cable
PE
PUR
FEP
Vibration resistance
Limited by the overpressure resistance of the measuring cell.
5)
Limited by the overpressure resistance of the measuring cell.
6)
Tested according to the guidelines of German Lloyd, GL directive 2.
7)
VEGAWELL 52 • 4 ... 20 mA/HART
, also called practical deviation, is the sum of the basic accuracy F
6)
Product temperature
-20 ... +60 °C (-4 ... +140 °F)
-20 ... +80 °C (-4 ... +176 °F)
-20 ... +80 °C (-4 ... +176 °F)
< (0.1 % x TD)/year
-40 ... +60 °C (-40 ... +140 °F)
-40 ... +80 °C (-40 ... +176 °F)
-40 ... +80 °C (-40 ... +176 °F)
35 bar (500 psi)
5)
35 bar (700 psi)
60 bar (900 psig)
316L: PN 3, PVDF: unpressurized
PN 3
mechanical vibrations with 4 g and 5 ... 100 Hz
10 Supplement
and long-
p
7)
33