VEGA Capacitive electrodes EK Profibus PA - Manual (Page 8)

8 Capacitive electrodes EK - Profibus PA
Product description
Accessory
Fixing spring of 1.4571
- length
approx. 185 mm (strained)
- tensile force approx. 200 N
Weight
Basic weight (e.g. EK 24) approx. 0.8 kg
Rod weight
- ø 6 mm
0.23 kg/m
- ø 10 mm 0.62 kg/m
Connection cables
Two-wire sensors power supply and signal via one two-wire cable
Wire cross-section generally 2.5 mm 2
Ground connection max. 4 mm 2
Cable entry 2 x M20 x 1.5 (cable diameter 5 … 9 mm)
Oscillators CAP E34 PA
Protection class II
Overvoltage category III
Frequency 300 kHz
Capacitance ranges 0 … 3000 pF
Supply voltage 9… 32 V DC
in Ex-applications, the permissible electrical
connection values stated in the certificate must
be noted.
Power consumption 11 mA ±1 mA
Load dependent on segment coupler, see technical
data of the segment couplers and Profibus
specification
Potential separation Min. 500 V DC
electromagnetic compatibility (EMU)
- interference immunity
acc. to EN 50 082-2
metal housing > 10 V/m
plastic housing > 4 V/m
- unwanted emission acc. to EN 50 081-2
Oscillator in two-wire technology for capacitive electrodes EK
Type CAP E34 PA EX
Application: continuous level meausrement acc. to the principle of phase-selective
admittance processing with potential separation. For connection to digital communication
for Profibus PA, approved for use in hazardous areas of zone 0.
Measuring range
0 - 3000 pF
Measuring frequency 300 kHz
Signal conditioning instrument segment coupler