Leakage Control, Dungs Vps 504 Series 2 (Option); Technical Data; Programme Sequence - Bentone BG550 Series Installation And Maintenance Instruction

12. Leakage control, Dungs VPS 504
series 2 (option)
12.1

Technical data

Test volume
Pressure increase using motor pumps
Backup (customer supply)
Fuse integrated in housing, replaceable
Switching capacity
Release time
Sensitivity limit
Max. number of test cycles

12.2 Programme sequence

Idle state: Valves 1 and 2 are closed. Pressure build-up:
The internal motor pump increases the gas pressure
Pe in the section by approx. 20 mbar compared with
the input pressure at valve V1. During the test time, the
integrated differential pressure sensor monitors the test
section for leaks. When the test pressure is attained,
the motor pump switches off (end of test period). The
release time (10-30 s) is depending on the test volume
(max. 4.0 l). If the test section has no leaks, the contact
is released to the control box after approx. 30 s and the
yellow LED lights up.
If the test section is leaky or if the pressure increase by
+ 20 mbar is not attained during the test period (max.
26 s), the VPS 504 generates a fault. The red LED is lit
as long as the contact is released by the regulator (heat
requirement).
After a short voltage drop during testing or during burner
operation, an automatic restart is performed.
≤ 4,0 l
≈ 20 mbar
10A fast or 6.3A slow
T6,3L 250V (IEC 127-2/111) (DIN41662)
Operating outputs SO1, SO2, SO4: 4A
Faul output T7: 1A
Faul output SO4 1, 2, 3, T7: 1A
≈ 10 - 30 s
Depending on test volume and input pressure.
50 l/h
20/h
General
Bentone BG550/650
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