VEGA VEGATROL 20 Ex - Manual (Page 8)

VEGATROL 20 Ex 8
Electrical protective measures
Protection unassembled IP 00
installed in Carrier Type 596 Ex with Ex-module
front completely equipped ......................... IP30
Upper and lower side ................................ IP20
Wiring side rear ......................................... IP00
installed in Housing Type 589 - 10 Ex ......................... IP30
(in both cases observe the respective TIB)
Protection class II (in housing 589)
Overvoltage category II
Mechanical data
Series Module unit for carrier type 596 Ex or
housing 589 - 10 Ex
Dimensions unassembled W = 50,8 mm (10 TE), H = 128,4 mm, D = 162 mm
Dimensions in plastic housing 589 W = 62,5 mm, H = 136 mm, D = 222 mm
Weight approx. 400 g
VEGATOR 526 W Ex must only be connected to instruments in which no higher voltages than AC 250 V (50 Hz) occur.
Potential stages and galvanic separation
2 Technical Information
2.4.2 Sensor VEGASWING Ex with oscillator E86 Ex (overfill protection)
Supply and signal circuit
Power supply 12 … 18,9 V DC
(from signal conditioning instrument VEGATOR 526 W Ex)
Data transmission analog, 4 … 20 mA
Flame proofing EEx ia IIC, T4
Internal effective capacitance C
int
unimportant
Internal effective inductance L
int
unimportant
Power consumption Tuning fork uncovered ca. 7 mA
Tuning fork covered 10 … 20 mA
Fault signal approx. 25 mA
Reference value approx. 15 mA
Connection line 2-wire
Ambient conditions
Permissible operating temperature -30
°
C … +70
°
C
Storage and transport temperature -40
°
C … +80
°
C
Operating pressure max. 25 bar
however observe max. permissible pressure of the flange
Electrical connections
Terminals in plastic housing for connection of max. 1,5 mm 2
Cable entry Pg 13,5
Electrical protective measures
Protection class II
P1
P3 P4 P5
P2
Meas. data input Power sup. unit
P1 … P5
Potential stages
Microcomputer control and output Relay contacts Relay contacts
Sensor
Ex-area
Fail safe relay Level relay
Voltage supply