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

8 Capacitive electrodes EL - Profibus PA
Product description
Supply voltage
in V
12
200
600
800
18 24 30 36
1000
Weights
Basic weight (e.g. EL 24) approx. 1.4 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 (the cable resistance depends on the
supply voltage, see diagram)
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 12 … 36 V DC
in Ex applications, the permissible electrical
connection values stated in the certificate
must be noted.
Load dependent on segment coupler, see
technical data of the segment couplers and
Profibus specification
Potential separation min. 500 V DC
Oscillator in two-wire technology for capacitive electrodes EL
Type CAP E34 PA EX
Application: continuous level measurement acc. to the principle of phase-selective admit-
tance processing with potential separation. For connection to digital communication of
Profibus PA, approved for use in hazardous areas of zone 0.
Measuring range
0 - 3000 pF
Frequency 300 kHz
Signal conditioning instrument segment coupler
Load in
Ω