The VPS 504 is the valve proving system for DUNGS multiple actuators. The valve proving system complies with EN 1643: - Equipment operates independent of residual pressure in the range of the permissible operating range. - Test volume ≤ 4 l - Setting work not necessary on site - Short test period: ≈ 10 s, max. 36 s - Tightness or leaks are displayed by an LED - External fault display possible for series 02, series 04 and S05 - Group fault alarm optional for S01 (SSM) - Suitable for TRD systems - Electrical connection possible by plug connection S01, 02, 03. No rewiring is required for contact allocation as per DIN 4791. - S04 and S05: electrical connection at screw terminals via PG 13.5 cable entry - Art. Nr. 224983
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