Signal Interface Systems
Flow Switch Monitoring
The flow switch detects water flow generated during emergency shower or eyewash operation and provides electrical signals for alarm activation, remote monitoring, and DCS/PLC integration.
Adjustable detection settings are available according to project requirements.
Limit Switch Monitoring
The limit switch detects the position change of mechanical operating components, such as shower pull rods or activation mechanisms, and provides status feedback for local alarms or external monitoring systems.
Brand: Honeywell.
Explosion-Proof Junction Box
For users requiring electrical explosion-proof configurations, we adopt certified Waron explosion-proof junction boxes.
The explosion-proof junction box is designed as a passive field signal interface device for hazardous area installations. It is used to collect, distribute, and route electrical signals from field instruments such as flow switches, temperature sensors, and alarm devices to central control systems.
The unit ensures safe and reliable signal transmission while maintaining explosion-proof integrity in Zone 1 and Zone 2 environments.
Technical Specifications
- Explosion Protection: Ex d / Ex e (depending on configuration)
- Protection Degree: IP66
- Material: Aluminum alloy / stainless steel optional
- Cable Entries: Multi-directional threaded entries
- Function: Passive signal junction
- Installation: Field-mounted
- Application: Signal interconnection in EPC systems
- Ambient Temperature: Industrial standard (-40°C to +60°C typical)
Key Functions
- Field signal collection and distribution
- Passive electrical interface (no control logic)
- Signal routing to DCS / PLC systems
- Hazardous area electrical isolation
- Multi-cable entry design for field integration
Explosion-proof Control & Signal Interface Panel
The Explosion-proof Control & Signal Interface Panel is a hazardous-area rated electrical interface unit designed to integrate emergency safety equipment with plant-wide control systems (DCS / PLC / SCADA).
It is engineered with a flameproof enclosure (Ex d) and dust protection (Ex tb), ensuring safe signal transmission and control operation in Zone 1 / Zone 2 hazardous environments.
This panel acts as the central signal gateway between field-installed emergency equipment and the EPC control system architecture.
Technical Specifications
- Product Type: Explosion-proof Signal Interface Panel
- Explosion Protection: Ex db IIB+H2 T6 Gb / Ex tb IIIC T80°C Db
- Protection Degree: IP66
- Rated Voltage: Up to 480VAC
- Rated Current: up to 20A (per circuit)
- Frequency: 50 / 60 Hz
- Control Signals: Dry contact NO/NC
- Communication Interface: DCS / PLC compatible
- Enclosure Material: Stainless steel 304 / 316L optional
- Cable Entry: Ex-certified cable glands (M20 / M25 / NPT)
- Ambient Temperature: -60°C to +60°C
- Installation: Wall-mounted / skid-mounted
- Certification: IECEx / ATEX
Key Functions
- Collection of field signals (flow / pressure / temperature / status)
- Dry contact signal output (NO/NC)
- DCS / PLC system integration
- Alarm and fault signal transmission
- Control logic interface for safety interlocks
- Hazardous area electrical isolation (Ex protection)
- System-level monitoring and feedback