ISM0156-9 Page 41
D5231
SAFETY DESCRIPTION
ATEX: II 3(1)G Ex nA [ia Ga] IIC T4 Gc, II (1)D [Ex ia Da] IIIC, I (M1) [Ex ia Ma] I
IECEx: Ex nA [ia Ga] IIC T4 Gc, [Ex ia Da] IIIC, [Ex ia Ma] I, associated apparatus and non-sparking electrical equipment.
Uo/Voc = 11.2 V, Io/Isc = 12 mA, Po/Po = 34 mW at terminals 21-13, 21-14, 22-15, 22-16, 23-17, 23-18, 24-19, 24-20.
Um = 250 Vrms, -40 °C ≤ Ta ≤ 70 °C.
Approvals:
BVS 12 ATEX E 122 X conforms to EN60079-0, EN60079-11, EN60079-15, EN60079-26, EN50303.
IECEx BVS 12.0090X conforms to IEC60079-0, IEC60079-11, IEC60079-15, IEC60079-26.
PARAMETERS TABLE
In the system safety analysis, always check the Hazardous Area/Hazardous Locations devices to conform with the related
system documentation, if the device is Intrinsically Safe check its suitability for the Hazardous Area/Hazardous Locations
and gas group encountered and that its maximum allowable voltage, current, power (Ui/Vmax, Ii/Imax, Pi/Pi) are not
exceeded by the safety parameters (Uo/Voc, Io/Isc, Po/Po) of the D5231 series Associated Apparatus connected to it. Also
consider the maximum operating temperature of the field device, check that added connecting cable and field device
capacitance and inductance do not exceed the limits (Co/Ca, Lo/La, Lo/Ro) given in the Associated Apparatus parameters
for the effective gas group. See parameters indicated in the table below:
Terminals Associated Apparatus Parameters
must
be
Haz. Area/Haz. Locations
Device Parameters
Ch1, Ch2,
Ch3, Ch4,
Ch5, Ch6,
Ch7, Ch8
21-13, 21-14,
22-15, 22-16,
23-17, 23-18,
24-19, 24-20
Uo / Voc = 11.2 V ≤ Ui / Vmax
Ch1, Ch2,
Ch3, Ch4,
Ch5, Ch6,
Ch7, Ch8
21-13, 21-14,
22-15, 22-16,
23-17, 23-18,
24-19, 24-20
Io / Isc = 12 mA ≤ Ii / Imax
Ch1, Ch2,
Ch3, Ch4,
Ch5, Ch6,
Ch7, Ch8
21-13, 21-14,
22-15, 22-16,
23-17, 23-18,
24-19, 24-20
Po / Po = 34 mW ≤ Pi / Pi
Ch1, Ch2,
Ch3, Ch4,
Ch5, Ch6,
Ch7, Ch8
21-13, 21-14,
22-15, 22-16,
23-17, 23-18,
24-19, 24-20
Co / Ca = 1.83 μF IIC (A, B)
Co / Ca = 12.6 μF IIB (C)
Co / Ca = 54 μF IIA (D)
Co / Ca = 58 μF I
Co / Ca = 12.6 μF IIIC (E, F, G)
≥
Ci / Ci device
+ C cable
Ch1, Ch2,
Ch3, Ch4,
Ch5, Ch6,
Ch7, Ch8
21-13, 21-14,
22-15, 22-16,
23-17, 23-18,
24-19, 24-20
Lo / La = 246 mH IIC (
, B)
Lo / La = 987 mH IIB (C)
Lo / La = 1.9 H IIA (D)
Lo / La = 3.2 H I
Lo / La = 987 mH IIIC (E, F, G)
≥
Li / Li device
+ L cable
Ch1, Ch2,
Ch3, Ch4,
Ch5, Ch6,
Ch7, Ch8
21-13, 21-14,
22-15, 22-16,
23-17, 23-18,
24-19, 24-20
Lo/Ro = 1070 μH/Ω IIC (A, B)
Lo/Ro = 4280 μH/Ω IIB (C)
Lo/Ro = 8550 μH/Ω IIA (D)
Lo/Ro = 14030 μH/Ω I
Lo/Ro = 4280 μH/Ω IIIC (E, F, G)
≥
Li/Ri device
and L cable/R cable
For installations in which both the Ci and Li of the Intrinsically Safe apparatus exceed 1% of the Co and Lo
parameters of the Associated Apparatus (excluding the cable), then 50% of Co and Lo parameters are applicable
and shall not be exceeded (50% of the Co and Lo become the limits which must include the cable such that Ci device + C
cable ≤ 50% of Co and Li device + L cable ≤ 50% of Lo). The reduced capacitance of the external circuit (including cable)
shall not be greater than 1 µF for Groups I, IIA, IIB and 600 nF for Group IIC. If the cable parameters are unknown, the
following value may be used: Capacitance 200pF per meter (60pF per foot), Inductance 1μH per meter (0.20μH per foot).
WARNING
D5231 is isolated Intrinsically Safe Associated Apparatus installed into standard EN50022 T35 DIN-Rail located in Safe
Area or Zone 2, Group IIC, Temperature T4 Hazardous Area (according to EN/IEC60079-15) within the specified operating
temperature limits Tamb -40 to +70 °C, and connected to equipment with a maximum limit for AC power supply Um of
250 Vrms.
Not to be connected to control equipment that uses or generates more than 250 Vrms or Vdc with respect to earth ground.