06/08/2020
PRESSURE LEAK DETECTOR
DLR-GS ..
- 11 -
3.3 Switching
Values
The following abbreviations are used in the table:
p
O
Maximum operating pressure in the inner pipe (feed pr dynamic
pr pressure due to geodetic height differences)
p
AON
Switching value "Alarm ON"; the alarm will be triggered at this pressure level
at the latest
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, ac-
cording to the pressure setpoint)
With the function “Feed required” display, this pressure value is about 1 bar
higher than the alarm pressure.
Further switching values:
p
AOFF
Switching value "Alarm OFF"; the alarm will be deactivated if this value is
exceeded
type 1 to 8 approx. 250 mbar
type 10 to 16 approx. 500 mbar
3
Switches 1 to 9 for determining the pressure level
Type DLR-GS
p
O
[bar]
p
AON
[bar]
p
SETPT
[bar]
Switch position of
dip switch
p
TEST
[bar]
p
PR
[bar]
1 pressureless
>
1 5
3
> 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 customer
Technical Data