Burkert Type 8635 User Manual
Page 8
8
Particular safety instructions
PTB 04 ATEX 2027
in ignition protection class intrinsic safety ex ia iic only for connection to a certified intrinsically safe circuit.
Maximum values:
signal
terminal
ui
ii
Pi
ci
li
Current input
11, 12
30 V
100 mA
1 W
negligibly small
negligibly small
Process control input
13, 14
30 V
100 mA
1 W
14.3 nF
negligibly small
Interface RS 232
1)
X4 1 ... 3
8.8 V
100 mA
880 mW
negligibly small
negligibly small
Actual value output
31, 32
30 V
100 mA
1 W
negligibly small
negligibly small
Initiators
41, 42 and 51, 52
15.5 V
52 mA
150 mW
200 nF
0.2 mH
Binary outputs
83, 84, 85, 86
30 V
100 mA
1 W
negligibly small
negligibly small
1)
or for connection to a programming device outside the potentially explosive area: Um = 250 V
in ignition protection class intrinsic safety ex ia iic only for connection to a mechanical switch.
Maximum values:
signal
terminal
uo
io
co
lo
Binary input
81, 82
8.8 V
0.2 mA
5.5 µF
1000 mH
The connections for piezo valves, position measuring system, HART, display and pressure sensor board are intrinsically safe circuits.
english