5700 ATEX Installation Instructions
December 2015 EB-20025742 Rev. AC
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3) Parameters (continued)
3.5 Sensor circuits for type 5700(C or I)1********; “ib”
3.5.1 Drive circuit; (J2 in J-box, DR+ BRN; DR- RED)
voltage Uo DC 10,5 V
current; instantaneous Io 1,06 A
current; steady state Io 0,272 A
power Po 2,13 W
internal resistance Ri 9,9
for group IIC
max. external capacitance Co 2,41 F
max. external inductance Lo 31,6 H
max. external induct/resist Lo/Ro 12,77 H/
for group IIB and IIIC
max. external capacitance Co 16,8 F
max. external inductance Lo 126,6 H
max. external induct/resist Lo/Ro 51,1 H/
The maximum external inductance L (sensor coil) can be calculated with the following
term:
2
5.1
2
Uo
RoRi
EL
whereby E = 40 μJ for group IIC and E = 160 μJ for group IIB & IIIC will be inserted.
3.5.2 Pick-off circuits (J1 in J-box, LPO+ GRN; LPO- WHT; RPO+ BLU;
RPO- GRY)
voltage Uo DC 17,3 V
current Io 6,92 mA
power Po 30 mW
for group IIC
max. external capacitance Co 353 nF
max. external inductance Lo 742 mH
max. external induct/resist Lo/Ro 1,19 mH/
for group IIB and IIIC
max. external capacitance Co 2,06 F
max. external inductance Lo 2,97 H
max. external induct/resist Lo/Ro 4,75 mH/