BCU 580 · Edition 11.15l 96
Parameters
10.7. 2 Relief valve (VPS)
Parameter 52
One of the valves connected to terminal 14, 15 or 57
can be selected to discharge the test volume during a
tightness test.
2
4
5
1
V2
V3
V4
14 15
57
Parameter 52 = 2: V2. The test volume is discharged via
the valve connected to terminal 14.
Parameter 52 = 3: V3. The test volume is discharged via
the valve connected to terminal 15.
Parameter 52 = 4: V4. The test volume is discharged via
the valve connected to terminal 57.
10.7.3 Measurement time V
p1
Parameter 56
The required measurement time must be determined
according to the requirements of the appropriate appli-
cation standards, e.g. EN 1643.
4
5
u
p
u
/2
PZ
V
p1
V1 V2
The required measurement time for the tightness test
of V
p1
can be set using parameter 56. The possible set-
tings are 3 s, 5 to 25 s (in 5 s steps) or 30 to 3600 s (in
10 s steps).
See also page 33 (Measurement time t
M
).