User manual

Publication 1797-6.5.1 - April 1999
Specifications A-3
Source output plus measurement input (+ to -) for ch 0 to ch 7 (terminals:
0-2; 4-6; 8-10; 12-14; 17-19; 21-23; 25-27; 29-31)
1797-OE8 Specifications
Protection Group Allowed
Capacitance
Allowed
Inductance
U
o
= 23.7V
I
o
= 93.5mA
P
o
= 555mW
EEx ia IIB 560nF 10mH
IIC 66nF 2.5mH
If concentrated
capacitance and/
or inductance
are available,
use the following
values.
EEx ia IIB 320nF 10mH
IIC 60nF 2mH
Number of Outputs 8 single-ended, non-isolated
IS Output Type EEx ia IIB/IIC, Class I, II, III Division 1 Groups A-G
IS Module Type EEx ib IIB/IIC T4, Class I Division 1 Groups A-D
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 22mA
Load
0-22mA
>11V
0-500Ω @ 22mA
Data Format Configurable
Step Response to 99% of FS 4ms
Indicators 8 red fault indicators
1 green power
Output (Intrinsically Safe)
(16 pin male and female
flexbus connector)
U
i
< 5.8V dc
I
i
< 400mA
L
i
= Negligible
C
i
= < 1.35µF
Isolation Path
Output to Power Supply
Output to Flexbus
Output to Output
Power Supply to Flexbus
Isolation Type
Galvanic to DIN EN50020
Galvanic to DIN EN50020
None
Galvanic to DIN EN50020
Power Supply
(+V, -V Intrinsically Safe)
U
i
< 9.5V dc
I
i
< 1A
L
i
= Negligible
C
i
= Negligible
Module Field-Side Power
Consumption
6.3W
Power Dissipation 5.4W