VEGA FIBERTRAC 31 Foundation Fieldbus - Manual (Page 65)

65
11 Supplement
FIBERTRAC 31 • Foundation Fieldbus
41780-EN-131119
Transistor output
Output
Floating transistor output, permanently shortcircuit-proof
Load current < 400 mA
Voltage loss < 1 V
Switching voltage < 55 V DC
Blocking current < 10 µA
Accuracy (according to DIN EN 60770-1)
Process reference conditions according to DIN EN 61298-1
Ʋ Temperature +18 … +30 °C (+64 … +86 °F)
Ʋ Relative humidity 45 … 75 %
Ʋ Air pressure 860 … 1060 mbar/86 … 106 kPa (12.5 … 15.4 psig)
Repeatability ≤ 0.5 %
Deviation with bulk solids The values depend to a great extent on the application.
Binding specifications are thus not possible.
Deviation under EMC influence ≤ 1 %
Characteristics and performance data
Step response time
5) ≤ 5 s (with damping 1 s)
Ambient conditions
Ambient, storage and transport tempera-
ture
-40 … +60 °C (-40 … +140 °F)
Process conditions
For the process conditions, please also note the specifications on the type label. The lower value
always applies.
Process pressure
Unpressurized
Process temperature (measured on the
detector tube)
-20 … +50 °C (-4 … +122 °F)
With temperatures higher than 50 °C we recommend the
use of water cooling
Vibration resistance 6) mechanical vibrations up to 1 g in the frequency range
5 … 200 Hz
Electromechanical data - version IP 66/IP 67
Cable entry
Ʋ M20 x 1.5 2 x cable gland M20 x 1.5 (cable: ø 6 … 12 mm), 4 x
blind plug M20 x 1.5
Included: 1 x cable gland M20 x 1.5
Ʋ ½ NPT 5 x closing cap (red) ½ NPT
Included: 3 x cable gland ½ NPT (cable: ø 6 … 12 mm),
4 x blind plug ½ NPT
5) Time span after a sudden measuring distance change by max. 0.5 m in liquid applications, max 2 m with bulk
solids applications, until the output signal has taken for the first time 90 % of the final value (IEC 61298-2).
6) Tested according to the guidelines of German Lloyd, GL directive 2.