36
FLEX Ex 8 Output and HART Analog Modules
Publication
1797-IN003J-EN-P - August 2017
IS module type
Ex ib IIB/IIC T4
AEx ib IIC T4
Class I, II, III Division 1 Groups A-D T4
Resolution
13 bit
Transfer Characteristics
Accuracy at 20
o
C (68
o
F)
Temperature Drift
0.1% of output signal range
0.010%/°C of output signal range
Load Range
Current
Voltage Available at 22 mA
Load
0…22 mA
>11V
0…500
Ω
@ 22 mA
Data Format
Configurable
Step Response to 99% of FS
4 ms
Module from Adapter
Best/Worst Update Time
200 ms/1600
μ
s
Indicators
8 red fault indicators
1 green power
Output Ch0…Ch 7
(Intrinsically Safe)
(Terminals: 0…1; 4…5;
8…9; 12…13; 17…18;
21…22; 25…26; 29…30)
U
o
< 21V
I
o
< 100 mA
P
o
< 520 mW
Isolation Path
Output to Power Supply
Output to Flexbus
Output to Output
Power Supply to Flexbus
Isolation Type
Galvanic to DIN EN60079-11
Galvanic to DIN EN60079-11
None
Galvanic to DIN EN60079-11
Power Supply
(+V, -V Intrinsically Safe)
(Terminals: 34/50 (+);
35/51 (-))
U
i
< 9.5V dc
I
i
< 1 A
L
i
= Negligible
C
i
= Negligible
Module Field-side Power
Consumption
6.3 W
Power Dissipation
5.4 W
Thermal Dissipation
18.4 BTU/hr
Module Location
Cat. No. 1797-TB3 or 1797-TB3S Terminal Base Unit
Conductors Wire
Size
4 mm
2
(12 gauge) stranded max
1.2 mm (3/64 in.) insulation max
Dimensions
Metric
Imperial
46 mm x 94 mm x 75 mm
(1.8 in. x 3.7 in. x 2.95 in.)