
The system incorporates Dynamic Self-Checking® circuitry which monitors the controller, wiring, connections, and sensors for faults 30 times per second for maximum safety
Sounds an audible alarm and/or controls pumps and valves for automatic shutdown when the sensors detect liquid or a fault in the system
As a high-level warning and emergency shut-down system, it operates independently from your gauging system to ensure that inventory inaccuracies do not compromise the safety of your operation
The sensors wired to a control unit provide high-level detection for a wide variety of petroleum and chemical products
The Scully WX System is certified by exida® as SIL3 Capable

The WX System provides for the capability of alarms as well as controlling pumps and valves for immediate, automatic shutdown of product flow
Monitors from 2-12 sensing points depending on mode—well suited for multiple fixed storage tank applications where individual display and/or output control is required
Uses output sensors approved as intrinsically safe for use in Class I, Division 1, Group C, and D hazardous locations
Features NEMA 4 style watertight housings
Works in conjunction with either Scully field-proven thermistor or two-wire optic sensors
The ordering information below is for FM and FMC approved units. For International ATEX approved models see ST-15C-WX data sheet posted above.
|
Part #
|
Description
|
DIM X
|
DIM Y
|
Depth
|
|---|---|---|---|---|
| 07839 ST-15-WX2 | Two-Channel Sensing Point Control Unit | 11" | 12.75" | 5.25" |
| 07851 ST-15-WX3 | Three-Channel Sensing Point Control Unit | 16″ | 24″ | 7.25″ |
| 07852 ST-15-WX4 | Four-Channel Sensing Point Control Unit | 16″ | 24″ | 7.25″ |
| 07853 ST-15-WX5 | Five-Channel Sensing Point Control Unit | 24″ | 30″ | 7.25″ |
| 07854 ST-15-WX6 | Six-Channel Sensing Point Control Unit | 24″ | 30″ | 7.25″ |
| 07855 ST-15-WX7 | Seven-Channel Sensing Point Control Unit | 24″ | 30″ | 7.25″ |
| 07856 ST-15-WX8 | Eight-Channel Sensing Point Control Unit | 24″ | 30″ | 7.25″ |
| 07857 ST-15-WX9 | Nine-Channel Sensing Point Control Unit | 30″ | 36″ | 7.25″ |
| 07858 ST-15-WX10 | Ten-Channel Sensing Point Control Unit | 30″ | 36″ | 7.25″ |
| 07859 ST-15-WX11 | Eleven-Channel Sensing Point Control Unit | 30″ | 36″ | 7.25″ |
| 07860 ST-15-WX12 | Twelve-Channel Sensing Point Control Unit | 30″ | 36″ | 7.25″ |