GEA pluscom Bock EX-HG12P, Assembly Instructions Manual, Page: 26 / 44

26
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GB
F
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I
09691-08.2019-DGbFEIRu
5 | Electrical connection
5.9 To verify the intrinsic safety of the PTC hot gas sensor
Thermal protection thermostat
(item no. 50159, retrofit kit item no. 08860)
Conditions for intrinsic safety
U
o
≤
U
i1
15,8
≤
30
[ V ]
U
o
≤
U
i2
15,8
≤
30
[ V ]
I
o
≤
I
i1
200
≤
300
[ mA ]
I
o
≤
I
i2
200
≤
300
[ mA ]
P
o
≤
P
i1
395
≤
9000
[ mW ]
P
o
≤
P
i2
395
≤
9000
[ mW ]
L
o
≥
∑
L
i1
+ L
i2
+ L
c
* 0,5
≥
0,25*
[ mH ]
C
o
≥
∑
C
i1
+ C
i2
+ C
c
* 478
≥
50*
[ nF ]
To verify the intrinsic safety of the hot gas sensor, the following values must be rated:
*) Values for L
c
/ C
c
represent example values for a total output length of 250 m, and they must be
updated by the system builder in accordance with your design.
L
i1
+ L
i2
: O mH C
i1
+ C
i2
: O nF