5
D5072-087
- SIL 2 Resistance Isolating Repeater
G.M. International ISM0178-5
Function Diagram
HAZARDOUS AREA ZONE 0 (ZONE 20) GROUP IIC,
HAZARDOUS LOCATIONS CLASS I, DIVISION 1, GROUPS A, B, C, D,
CLASS II, DIVISION 1, GROUPS E, F, G, CLASS III, DIVISION 1,
CLASS I, ZONE 0, GROUP IIC
SAFE AREA, ZONE 2 GROUP IIC T4,
NON HAZARDOUS LOCATIONS, CLASS I, DIVISION 2,
GROUPS A, B, C, D T-Code T4, CLASS I, ZONE 2, GROUP IIC T4
When used with separately powered intrinsically safe devices, check that maximum allowable voltage, current (Ui/Vmax, Ii/Imax) of the D5072-087 Associated Apparatus are not
exceeded by the safety parameters (Uo/Voc, Io/Isc) of the Intrinsically Safe device, indicated in the table below:
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). The reduced capacitance of the external circuit (including cable) shall not be greater than 1
μ
F for Groups I, IIA,
IIB and 600 nF for Group IIC.
If the cable parameters are unknown, the following value may be used: Capacitance 200 pF per meter (60 pF per foot), Inductance 1 µH per meter (0.20 µH per foot).
Must
be
Hazardous Area/
Hazardous Locations
Device Parameters
D5072 Associated
Apparatus Parameters
Ui / Vmax = 12.8 V
Uo / Voc
D5072-087
Terminals
≥
Ci = 0 nF, Li= 0 nH
Ch1 7 - 8 - 9 - 10
D5072S-087
Ch1
Ch2
7 - 8 - 9
10 - 11 - 12
D5072D-087
Ch1 7 - 8 - 9 - 10
D5072S-087
Ch1
Ch2
7 - 8 - 9
10 - 11 - 12
D5072D-087
=
=
=
5 +
6 -
1 +
2 +
9
10
MODEL D5072S-087
Ohm
7
8
+
-
Fault and Power Bus
Supply 24 Vdc
3 -
4 -
Out
In
2-3-4 wires
RTD / Resistance
2-3-4 wires
2 wires
Potentiometer
F
Ohm
=
=
=
MODEL D5072D-087
Ohm
+
-
Fault and Power Bus
Out 1
F
2-3 wires
RTD / Resistance
2 wires
poten.
In 1
In 2
2-3 wires
9
7
8
10
11
12
Ohm
Ohm
Ohm
=
=
=
1 +
2 -
5 -
3 +
4 -
6 -
Out 2
