BERTHOLD TECHNOLOGIES LB 480, User Manual

Page: 77 / 450

SENSseries LB 480
BERTHOLD TECHNOLOGIES GmbH & Co. KG
1 – 77
Volume 1 5 Explosion Protection
1
Certificate:
70009819
Project: 70066628
Master Contract:
215040
Date Issued: 2016-03-07
DQD 507 Rev. 2012-05-22 Page 4
Input Ratings:
Variant
Type Input Rating
Ax, Bx LB 480-1x-xx-x2
LB 480-2x-xx-x2 100Vac-240Vac, 50/60Hz, 12VA
Ax, Bx LB 480-1x-xx-x1
LB 480-2x-xx-x1 24Vdc, 12W
Ex LB 480-3x-xx-x2
LB 480-4x-xx-x2 100Vac-240Vac, 50/60Hz, 12VA
Ex LB 480-3x-xx-x1
LB 480-4x-xx-x1 24Vdc, 12W
Thermometer Circuit (PT100) Terminals 15 and 16
Type of protection Intrinsic Safety Ex ia IIC Maximum Values:
U
o
= 14.0 V; I
o
= 27.7 mA; P
o
= 97.0 mW; C
i
= 11 nF; L
i
= nil
Maximum permissible external values for common effective reactance’s (C
i
is not considered)
L
o
(mH) C
o
(µF)
0.1 0.73
0.5 0.71
1.0 0.59
The RTD circuit is electrically connected to the internal supply circuit and the earth.
Open Collector Circuit (Terminal 11, 12)
Type of protection Intrinsic Safety Ex ia IIC Maximum Values:
U
i
= 15.0 V; I
i
= 26.6 mA; P
i
= 100.0 mW; C
i
= 11 nF; L
i
= nil
The open collector circuit is safely electrically isolated from earth and all other circuits.
Hart-current output (Source Mode) (Terminal 17, 18)
Type of protection Intrinsic Safety Ex ia IIC Maximum Values:
U
o
= 25.2 V; I
o
= 101.0 mA; P
o
= 635.0 mW;
Characteristic Linear: C
i
= 3.0 nF; L
i
= 20.0 µH
Maximum permissible external values for common effective reactance’s (C
i
is not considered)
L
o
(mH) C
o
(µF)
0.1 0.107
0.5 0.078
1.0 0.061
Single reactance’s to table A.2 and figure A.4 or A.6 of 60079 -11