SILAS Controller
Benefits
- Small design
- Easy to handle
- Separate purging gas input and output
Marking
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
Ambient Temperature
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)
Description
The SILAS Controller serves to monitor electrical equipment set up in accordance with the “pressurised apparatus with leakage compensation” process.
It is a complete safety device, which consists of a type A7-3741-1110/.00. SILAS Controller and a type 17-51P3-1604 pressure control device.
An optional digital purging gas valve to supply protective gas is also necessary.
Technical Data
| 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 |
| 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 |
