FCU 500, FCU 505 · Edition 02.17
56
Valve proving system
Measurement time for a large test volume V
p1
with
reduced testing time
Parameter 53 = 1 or 2, parameter 70 = 1
t
M
[s] =
0.9 x 50 mbar x 32.45 l
= 7.3 s
200 l/h
Set the next highest value (10 s) using parameter 56,
see page 110 (Measurement time V
Measurement time for two large test volumes
(V
p1
+ V
p2
) with reduced testing time
Parameter 53 = 3, parameter 70 = 1
t
M
[s] =
0.9 x 50 mbar x (32.45 l + 300 l)
= 74.8 s
200 l/h
Set the next highest value (80 s) using parameter 57,
see page 110 (Measurement time V
