49
11 Supplement
VEGACAL 66 • Foundation Fieldbus
30038-EN-200929
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Gravity weight
900 g (32 oz)
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Cable weight: ø 8 mm (0.315 in)
180 g/m (1.9 oz/ft)
Sensor length (L)
0.4 … 35 m (1.312 … 114.8 ft)
Max. tensile load (cable)
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PTFE fully insulated: ø 8 mm
(0.315 in)
10 KN (2248 lbf)
Max. torque (process fitting - thread)
100 Nm (74 lbf ft)
Torque for NPT cable glands and Conduit tubes
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Plastic housing
max. 10 Nm (7.376 lbf ft)
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Aluminium/Stainless steel housing
max. 50 Nm (36.88 lbf ft)
Output variable
Output
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Signal
digital output signal, Foundation Fieldbus protocol
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Physical layer
according to IEC 61158-2
Channel Numbers
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Channel 1
Primary value
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Channel 2
Secondary value 1
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Channel 3
Secondary value 2
Transmission rate
31.25 Kbit/s
Current value
10 mA, ±0.5 mA
Damping (63 % of the input variable)
0 … 999 s, adjustable
Input variable
Measured variable
Level of conductive liquids and solids
Measuring principle
phase-selective admittance processing (PSA)
Measuring range
0 … 3000 pF
Measuring frequency
270 kHz
Measurement accuracy (according to DIN EN 60770-1)
Reference conditions according to DIN EN 61298-1
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Temperature
+18 … +30 °C (+64 … +86 °F)
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Relative humidity
45 … 75 %
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Air pressure
+860 … +1060 mbar/+86 … +106 kPa
(+12.5 … +15.4 psig)
Temperature error
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< 120 pF
< 1 pF
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> 120 pF
1 % of the current measured value
Linearity error
< 0.25 % of the complete measuring range
Ambient conditions
Ambient, storage and transport tempera-
ture
-40 … +80 °C (-40 … +176 °F)