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SCULLY ST-15-WX Overfill Prevention and Liquid Detection Monitor
发表时间：2021-08-21 来源： 点击次数：1917次



Safe, reliable, high- and low-level warning and spill prevention system for storage tanks

  • 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

SIL2-cert


The Scully WX System is certified by exida® as SIL2


FEATURES

  • 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 3 –12 sensing points depending on model. 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
ORDERING INFO

The ordering information below is for FM and FMC approved units. For International ATEX and SIL approved models see:

Control Units

Part Number Description DIM X DIM Y Depth
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″
TECH SPECS

Product Range: Gasoline through #6 oil, waste oil, chemicals, water, etc. Consult Scully for specific application questions.
Controls: Alarm test push button; alarm silence circuit with push button and automatic reset
Indicator Lights: Green = Power On; Red = Alarm Condition
Response Time: High-level: .05 seconds maximum
Low-level: 3-7 seconds
Enclosure: NEMA 4 style for indoor/outdoor use
Power Requirements: 115 VAC, +/- 15%, 50–60HZ, 20 watts maximum. Also available in 240 VAC models; consult Scully for details
Electrical Connections: Internal Terminal Strips
Output Provisions: External Alarm, 115VAC, 3 A max. Individual channel SPDT contacts, rated 5A- 250 VAC
Compatible Sensors: Refer to technical data sheets; 60635, 60715
Intrinsic Safety Information: The ST-15-WX control units can be mounted in any non-hazardous area and utilize oil tight controls and indicators. Internal circuitry provides intrinsically safe (I.S.) output, for probe connections. This output is rated for Class I, Div 1, Group D hazardous areas.
SIL Certification: IEC 61508 Certified SIL2 HFT=0 SIL3 HFT=1
Chemical Applications: Refer to technical data sheet 67100
PROD LIT/DOWNLOADS

Datasheets:

ST-15WX_US
ST-15WX_International
ST-15WX_International French
ST-15WX_International German
ST-15WX_International Russian