APPENDIX B
OVERPRESSURE LEAK DETECTOR DLR-GS ..
10/09/2014
- B-1 -
B Switching values and pressure values
Type
DLR-GS
p
O
[bar]
p
AON
[bar]
p
SETPT
[bar]
Switch position of
the dip switch
p
TEST
[bar]
p
PR
[bar]
1
Depressurised
> 1
5
1
> 6,5
5
2
< 1
> 2
6
> 8
6
3
< 2
> 3
7
> 9
7
4
< 3
> 4
8
> 10
8
6
< 5
> 6
10
> 13
10
8
< 7
> 8
12
> 16
12
10
< 9
> 10
14
> 18
14
13
< 12
> 13
17
> 22
17
16
< 15
> 16
20
> 26
20
Special values agreed between SGB and
the customer.
The following abbreviations are used in the table:
p
O
Maximum operating pressure in the inner pipe (delivery pr velocity pr
pressure due to differences in geodetic height
p
AON
"Alarm ON" switching value – an alarm is triggered when this value is reached if not
before
p
AOFF
"Alarm OFF" switching value – the alarm is cancelled when this value is exceeded
Type 1 to 8 approx. 250 mbar
Type 10 to 16 approx. 500 mbar.
p
SETPT
Pressure setpoint which should be built up according to the manufacturer's
recommendation. Note: there is no display indication when this pressure is reached.
This setting can be varied, in which case the following must be noted:
Upwards: the test pressure must be at least 1.3 times higher.
Downwards: the alarm pressure is reached considerably more quickly.
p
TEST
Minimum test pressure of the interstitial space
p
PR
Set pressure on the pressure reducer (must be adjusted in some cases, according to the
pressure setpoint)
If the optional function for "Feed required" display is ordered, this pressure value is about 1 bar
higher than the alarm pressure.
1
Switches 1 to 9 for determining the pressure level
Summary of Contents for DLR-GS PMN Series
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