D5263
- SIL 2 Load Cell/Strain Gauge Bridge Isolating Repeater
G.M. International ISM0227-8
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 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 D5263 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 group. See parameters indicated in the table below:
Must
be
Hazardous Area/Hazardous
Locations Device Parameters
D5263 Associated
Apparatus Parameters
D5263 Terminals
Function Diagram
HAZARDOUS AREA ZONE 0 (ZONE 20) GROUP IIC
SAFE AREA, ZONE 2 GROUP IIC T4
Uo / Voc = 7.2 V
Ui / Vmax
≤
13 - 14 - 15 - 16 - 17 - 18
Io / Isc = 177 mA
Ii / Imax
≤
Po / Po = 471 mW
Pi / Pi
≤
Must
be
Hazardous Area/Hazardous
Locations Device Parameters
D5263 Associated
Apparatus Parameters Cenelec (US)
D5263 Terminals
IIC (A,B)
Co / Ca = 0.3
µ
F
Ci / Ci C cable
≥
13 - 14 - 15 - 16 - 17 - 18
IIB (C)
Co / Ca = 1.5
µ
F
IIA (D)
Co / Ca = 2.2
µ
F
I
Co / Ca = 2.8
µ
F
IIIC (E, F, G)
Co / Ca = 1.5
µ
F
IIC (A,B)
13 - 14 - 15 - 16 - 17 - 18
IIB (C)
IIA (D)
I
IIIC (E, F, G)
Lo / La = 0.5 mH
Lo / La = 6.5 mH
Lo / La = 9.5 mH
Lo / La = 13 mH
Lo / La = 6.5 mH
Characteristic: trapezoidal.
If the cable parameters are unknown, the following values may be used: capacitance 200 pF per meter (60 pF per foot), inductance 1 µH per meter (0.20 µH per foot).
13 - 14 - 15 - 16 - 17 - 18
13 - 14 - 15 - 16 - 17 - 18
Li / Li L cable
≥
Up to 10 load cells 1000
Ω
in parallel
Up to 4 load cells 350
Ω
in parallel
Up to 5 load cells 450
Ω
in parallel
13
14
9 +
10 -
1
Supply 24 Vdc
15
16
17
18
=
=
2
3
4
5
Weighting Indicator
=
=
=
6
+EXC
+Sense
-Sense
-EXC
+IN
-IN
Out 1
+Sense
+EXC
-Sense
-EXC
+IN
-IN
Load cell
In 1
MODEL D5263S
+
-
Power Bus
SIL 2
