4
D1080
- Flammable Liquid Presence Detector Interface Relay Output
G.M. International ISM0055-9
Parameters Table
Must
be
Hazardous Area
Device Parameters
D1080 Associated
Apparatus Parameters
Must
be
Hazardous Area
Cable Parameters
Uo / Voc = 15.8 V
Ui / Vmax
In the system safety analysis, always check the Hazardous Area devices to conform with the related system documentation, if the device is Intrinsically Safe check its suitability for the
Hazardous Area 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 D1080 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:
D1080 Terminals
Ch1
Ch2
13 - 16
9 - 12
Uo / Voc = 15.8 V
Ch1
Ch2
14 - 16, 13 - 15
10 - 12, 9 - 11
Io / Isc = 109 mA
Ch1
Ch2
13 - 16
9 - 12
Io / Isc = 13 mA
Ch1
Ch2
14 - 16, 13 - 15
10 - 12, 9 - 11
Po / Po = 428 mW
Ch1
Ch2
13 - 16
9 - 12
Po / Po = 51 mW
Ch1
Ch2
14 - 16, 13 - 15
10 - 12, 9 - 11
≤
Ii/ Imax
≤
Pi / Pi
≤
D1080 Associated
Apparatus Parameters
Ci / Ci C cable
≥
Li / Li L cable
≥
Li / Ri device and
L cable / R cable
≥
(II-A, B)
Co / Ca = 478 nF
Co / Ca = 2.88 µF
Co / Ca = 11.6 µF
(IIB-C)
(IIA-D)
(IIC-A, B)
Co / Ca = 478 nF
Co / Ca = 2.88 µF
Co / Ca = 11.6 µF
(IIB-C)
(IIA-D)
(IIC-A, B)
Lo / La = 3 mH
Lo / La = 12 mH
Lo / La = 24 mH
(IIB-C)
(IIA-D)
(IIC-A, B)
Lo / La = 217.6 mH
Lo / La = 870.7 mH
Lo / La = 1741 mH
(IIB-C)
(IIA-D)
(IIC-A, B)
Lo / Ro = 83 µH/
Ω
Lo / Ro = 332 µH/
Ω
Lo / Ro = 664 µH/
Ω
(IIB-C)
(IIA-D)
(IIC-A, B)
Lo / Ro = 706 µH/
Ω
Lo / Ro = 2820 µH/
Ω
Lo / Ro = 5650 µH/
Ω
(IIB-C)
(IIA-D)
D1080 Terminals
Ch1
Ch2
13 - 16
9 - 12
Ch1
Ch2
14 - 16, 13 - 15
10 - 12, 9 - 11
Ch1
Ch2
13 - 16
9 - 12
Ch1
Ch2
14 - 16, 13 - 15
10 - 12, 9 - 11
Ch1
Ch2
13 - 16
9 - 12
Ch1
Ch2
14 - 16, 13 - 15
10 - 12, 9 - 11
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).
