Digital Purge Gas Valve
| Protection class | min. IP 54 |
|---|---|
| Pressure range | 0 to 25 mbar for all pressure switching levels |
| Purge time | 0 to 60 minutes (adjustable) |
| Temperatures | Operating temperature -20 °C to +60 °C @ T4 (-4 °F to 140 °F @ T4) -20 °C to +40 °C @ T6 (-4 °F to 104 °F @ T6) Storage temperature -20 °C to +60 °C (-4 °F to 140 °F) |
| Voltage | AC 230 V / 50 to 60 Hz AC 115 V / 50 to 60 Hz DC 24 V |
| Power | max. 8 W |
| Display | single-line LC display |
| Operation | – 1 power switch – 1 BCD switch for selecting parameters – 3 buttons for changing parameters – 3 LEDs for displaying switching relay status – 1 bypass |
| Relay | 1. Control relay for purge valve 2. Enable relay Ex p (potential free) 3. Signal relay for status transmission (potentail free) |
| Weight | 1.2 kg |
ATEX:
Ex II 3G Ex ec nC [pzc] IIC T4 Gc
-20 °C to +60 °C
Ex II 3G Ex ec nC [pzc] IIC T6 Gc
-20 °C to +40 °C
Ex II 3D Ex tc [pzc] IIIB T85 °C Dc
IECEx:
Ex ec nC [pzc] IIC T4 Gc
-20 °C to +60 °C
Ex ec nC [pzc] IIC T6 Gc
-20 °C to +40 °C
Ex tc [pzc] IIIB T85 °C Dc
Operating temperature
-20 °C to +60 °C @ T4
(-4 °F to 140 °F @ T4)
-20 °C to +40 °C @ T6
(-4 °F to 104 °F @ T6)
Storage temperature
-20 °C to +60 °C
(-4 °F to 140 °F)
The SILAS Ex‑pzc Controller is an intelligent control and monitoring system for pressurization (Ex‑p) solutions used in hazardous areas.
It ensures that enclosures are reliably purged and pressurized with protective gas, continuously monitors the purging process, and measures the internal pressure. This prevents explosive atmospheres from entering the enclosure.
The controller complies with international explosion protection standards and provides safe, automated, and reliable control of Ex‑p systems.
