VEGA VEGAFLEX 51K - Manual (Page 10)

10 VEGAFLEX 51K
Product description
Connection cables
Two-wire sensor
- Supply and signal via one two-wire cable.
The cable resistance depends on the supply voltage (see diagram).
Four-wire sensor
- Supply and signal separate,
cable resistance of the 4 … 20 mA signal cable max. 500
W
Profibus PA sensor
- recommended cable types
- SINEC 6XV1 830-5AH10 (Siemens AG)
- SINEC L2 6XV1 830-35H10 (Siemens AG)
- 3079 a (Belden)
- max. cable length 100 m field distributor to sensor
Conductor 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)
CE conformity
VEGAFLEX sensors meet the protective regulations of EMC (89/336/EWG) and NSR
(73/23/EWG). Conformity has been judged acc. to the following standards:
EMC
Emission EN 50 081 - 1: 1992
Susceptibility EN 50 082 - 2: 1995
NSR EN 61 010 - 1: 1993
Display
Display scalable, analogue and digital display of
measured values (option).
An external display of measured value, powered by the sensor, can be mounted at a dis-
tance of up to 25 m from the sensor.
Signal output
Signal output
- two-wire technology
4 … 20 mA (see diagram)
- four-wire technology 4 … 20 mA
Resolution of the 20 mA signal 0.025 % of range
Load 0 … 500
W
Two-wire technology:
The analogue 4 … 20 mA output signal (measuring signal) is transmitted together with the
power supply via one two-wire cable.
Four-wire technology:
Separate power supply.
The analogue 4 … 20 mA output signal (measuring signal) is transmitted in a cable sepa-
rated from the power supply.