Aplisens WW-11ALW Manuel de l'utilisateur - Page 9
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6.
CERTIFICATES FOR USE IN HAZARDOUS AREAS
6.1. Directive ATEX – intrinsically safe version
Displays may be used in potentially explosive atmospheres in accordance with the following explo-
sion-proof designations:
II 2G Ex ia IIC T4 Gb
II 1D Ex ia IIIC T110°C Da
KDB 16 ATEX 0006
The displays are designed and manufactured in accordance with requirements of the following stand-
ards: EN 60079-0:2012 + A11:2013, EN 60079-11:2012.
Connections in potentially explosive zones are presented in p.8.4.
Allowable parameters based on the KDB 16 ATEX 0006. certificate is given in 6.2.
6.2. Allowable parameters for supplying of the displays (based on the certificate KDB
16 ATEX 0006)
Displays with cooperating transmitters shall be supplied from the supplying devices having
appropriate certificates of intrinsic safety, which parameters of outputs to potentially explo-
sive zones shall not exceed allowable supply parameters for the displays.
Table 1. Allowable parameters for supplying of circuits with display.
Allowable parameters for supplying of circuits with display
Ui, Uo
Supply with linear characteristics
30 V
Supply with trapezoidal characteristics
24 V
Supply with rectangular characteristics
24 V
Substitute inductance of transmitter circuit with display Liz = Lip
where Lip - input inductance of the transmitter.
Substitute capacitance Ciz of circuit of the transmitter with display equals to:
for input capacitance of the transmitter Cip ≤ 25 nF;
Ciz = 25 nF
Ciz = Cip
for input capacitance of the transmitter Cip > 25 nF.
Calculated values of substitute inductance and capacitance of the circuit shall be increased by induct-
ance and capacitance of the cable.
Revision 01.B.003/2020.09
Ii, Io
Pi, Po
0,1 A
0,75 W
50 mA
0,6 W
50 mA
1,2 W
Li
Ci
0 µH
25 nF
0 µH
25 nF
0 µH
25 nF
EN.IO.WW.11.ALW
Ta
75ºC, T4
75ºC, T4
75ºC, T4
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