WIKA DIH50 Betriebsanleitung Seite 24

9. Information on mounting and operation in hazardous areas
9.2 Specific conditions for safe use, models DIH5x-I
Installation in areas requiring EPL Ga or EPL Gb equipment
Electronic assemblies of field indicator models DIH5x-I shall be mounted inside a case
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suitable for installation in EPL Ga or Gb area respectively, wherein electrostatic charge
EN
effects are excluded. The case shall provide, as a minimum, a degree of protection of
IP20 according to IEC 60529.
Wiring inside this case shall satisfy the conditions of clause 6.3.12 and clause 7.6.e of
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IEC 60079-11:2011.
Terminals or connectors for the intrinsically safe circuits shall be arranged in line with
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clause 6.2.1 or 6.2.2 of IEC 60079-11:2011, respectively.
Installation in areas requiring EPL Da or EPL Db equipment
Electronic assemblies of field indicator models DIH5x-I shall be mounted inside a case
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suitable for installation in EPL Da or Db area respectively, wherein electrostatic charge
effects are excluded. The case shall provide, as a minimum, a degree of protection of
IP5x (group IIIB application) or IP6x (group IIIC application) according to IEC 60529.
Wiring inside this case shall satisfy the conditions of clause 6.3.12 and clause 7.6.e of
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IEC 60079-11:2011.
Terminals or connectors for the intrinsically safe circuits shall be arranged in line with
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clause 6.2.1 or 6.2.2 of IEC 60079-11:2011, respectively.
9.3 Intrinsically safe supply and signal circuit, models DIHxx-B, DIHxx-NT
(4 ... 20 mA loop; terminal ⊕ and ⊖)
Parameters
Voltage U / U
i 0
Strenght of current I
Power P
i
Effective internal capacitance C
Effective internal inductance L
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Models DIH5x-B, DIH5x-I
29 V
/ I 100 mA
i 0
680 mW
13.2 nF
i
1.2 μH
i
WIKA operating instructions models DIH50, DIH52