D1048
- SIL 3 Digital Output Driver NE Loads Loop Powered
G.M. International ISM0096-4
4
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 D1048 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 on
enclosure side and the ones indicated in the table below:
Must
be
Hazardous Area/
Hazardous Locations
Device Parameters
D1048 Associated
Apparatus Parameters
Uo / Voc = 24.8 V
Ui / Vmax
D1048 Terminals
Out A
13 - 16
Out B
14 - 16
≤
Must
be
Hazardous Area/
Hazardous Locations
Cable Parameters
D1048 Terminals
D1048 Associated
Apparatus Parameters
Ci / Ci C cable
≥
Li / Li L cable
≥
Lo / La = 1.65 mH
Lo / La = 6.63 mH
Lo / La = 13.27 mH
(IIB-C)
(IIA-D)
(IIC-A, B)
Lo / La = 3.07 mH
Lo / La = 12.30 mH
Lo / La = 24.60 mH
(IIB-C)
(IIA-D)
(IIC-A, B)
Lo / La = 4.19 mH
Lo / La = 16.79 mH
Lo / La = 33.58 mH
(IIB-C)
(IIA-D)
(IIC-A, B)
Out C
15 - 16
Io / Isc = 147 mA
Ii/ Imax
Out A
13 - 16
Out B
14 - 16
≤
Io / Isc = 108 mA
Out C
15 - 16
Io / Isc = 93 mA
Po / Po = 907 mW
Pi / Pi
Out A
13 - 16
Out B
14 - 16
≤
Po / Po = 667 mW
Out C
15 - 16
Po / Po = 571 mW
Out A
13 - 16
Out B
14 - 16
Out C
15 - 16
Co / Ca = 113 nF
Co / Ca = 860 nF
Co / Ca = 3.05 µF
(IIB-C)
(IIA-D)
(IIC-A, B)
Li / Ri device and
L cable / R cable
≥
Lo / Ro = 39.2 µH/
Ω
Lo / Ro = 156.8 µH/
Ω
Lo / Ro = 313.6 µH/
Ω
(IIB-C)
(IIA-D)
(IIC-A, B)
Lo / Ro = 53.3 µH/
Ω
Lo / Ro = 213.5 µH/
Ω
Lo / Ro = 427.0 µH/
Ω
(IIB-C)
(IIA-D)
(IIC-A, B)
Lo / Ro = 62.3 µH/
Ω
Lo / Ro = 249.4 µH/
Ω
Lo / Ro = 498.9 µH/
Ω
(IIB-C)
(IIA-D)
(IIC-A, B)
Out A
13 - 16
Out B
14 - 16
Out C
15 - 16
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 C cable
≤
50 % of Co and Li L cable
≤
50 % of Lo).
If the cable parameters are unknown, the following value may be used: Capacitance 60pF per foot (180pF per meter), inductance 0.20µH per foot (0.60µH per meter).
The Intrinsic Safety Entity Concept allows the interconnection of Intrinsically Safe devices approved with entity parameters not specifically examined in combination as a system
when the above conditions are respected.
For Division 1 and Zone 0 installations, the configuration of Intrinsically Safe Equipment must be FM approved under Entity Concept (or third party approved);
for Division 2 installations, the configuration of Intrinsically Safe Equipment must be FM approved under non-incendive field wiring or Entity Concept (or third party approved).
NOTE for USA and Canada:
IIC equal to Gas Groups A, B, C, D, E, F and G,
IIB equal to Gas Groups C, D, E, F and G,
IIA equal to Gas Groups D, E, F and G
Out A
13 - 16
15 - 16
Out B
Out C
14 - 16
