FLEX Ex 8 Output and HART Analog Modules
39
Publication
1797-IN003J-EN-P - August 2017
Specifications - 1797-OE8H
Number of Outputs
8 single-ended, non-isolated
IS Input type
Ex ia IIB/IIC T4
AEx ia IIC T4
Class I, Division I Groups A-G T4 (FM only)
IS Module type
Ex ib IIB/IIC T4
AEx ib IIC T4
Class I, Division I Groups A-D T4 (FM only)
Resolution
13 bits
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
> 15V
0…680
Ω
@ 22 mA, 0…770
Ω
@ 20 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
8 yellow HART comm indicators
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
< 21.6V
I
o
< 92 mA
P
o
< 500 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 and 50 (+);
35 and 51 (-))
U
i
< 9.5V dc
I
i
< 1 A
L
i
= Negligible
C
i
= 120 nF
Module Field-side Power
Consumption
6.1 W
Power Dissipation
5.4 W