Kromschroder FCU 500 - Test Period T; For One Test Volume; Valves; P1 between 2 Gas Solenoid

FCU 500, FCU 505 · Edition 02.17 48
Valve proving system
7. 2 Test period t
P
The test period for the tightness test varies depending
on the selected function (parameter 53).
7.2.1 For one test volume V
p1
between 2 gas solenoid
valves
P
Z
L
P
Z
H
FCU 500..C1
µC
P
4
9
13
1
450
45
45
47
58
48
p
u
/2
TC
PZ
PZ
L
PDZ
M
>750°
ϑ
1
2
3
p
u
/2
PZ
V
p1
V1 V2
p
u
p
z
p
d
The test period t
P
is calculated from:
– Opening times t
L
for V1 and V2,
– Measurement times t
M
for V1 and V2.
t
P
[s] = 2x t
L
+ 2x t
M
7.2.2 For one test volume V
p1
for system tightness
P
Z
L
P
Z
H
F
C
U 5
00
..
C
1
µC
P
4
9
1
5
13
1
450
45
47
58
48
p
u
/
2
TC
PZ
PZL PDZ
M
>750°
ϑ
1
2
3
p
u
/2
PZ
V
p1
V1
V3
p
u
p
z
The test period t
P
is calculated from:
– Opening times t
L
for V1 and V3,
– Measurement times t
M
for V1 and V3.
t
P
[s] = 2x t
L
+ 2x t
M