The filter element, and via this indirectly, the filter space and sample tube or preliminary filter can
•
be backflushed via the check valve /BB/F installed in the heated chamber wall.
The following figures show the probe types SP2500-H, ...H/C/I/BB, ...H/C/I/BB/F.
340
207
110
260
Tube 6x1
Option:
C
Test gas IN
Figure 1
Probe type SP2500-H
340
207
110
260
Tube 8x1
Backflush IN
Figure 2
Probe type SP2500-H/C/I/BB
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Pre-filter
To >+30°C
Tref.
0- 180°C
Tu < - 30°C
1
2
3 4 5
6
7
8 9
N L ' L
Sample tube
Power
Low temperature
230V,50Hz
alarm
Option:
(115V,60Hz)
Test gas
>0,7bar
Sample IN
Pre-filter
To >+30°C
Tref.
0- 180°C
Tu < - 30°C
1
2
3 4 5
6
7
8 9
N L ' L
Sample tube
Power Low temperature
alarm
230V,50Hz
(115V,60Hz)
Backflush
2-6bar
Sample IN
Option:
2x
Sample OUT
180°C
Control
Test gas
3-10bar >0,7bar
Sample OUT
180°C
SP2500-H | 1.00.02
345
Option: C
1/4" NPTi
Option: 2x
Sample
OUT
2. sample OUT
345
Tube 6x1
1/4" NPTi
1/8" NPTi
Test gas
Sample
Control
IN
OUT
IN
Option: C
Test gas IN
Backflush IN
9