💡 Key Summary: 4-Channel Leak Detection Control Module for Acid/Alkali & Inorganic Solutions, Managing Up to 4 Zones Simultaneously
YHSM-04S-AR is a 4-channel leak detection control module that receives and manages signals from acid, alkali, and inorganic solution leak detection sensors through four independent channels. With a large LCD display, operators can view channel status in one place. RS-485 (Modbus) communication and relay outputs support efficient leak response system 구축 across multiple high-risk zones in semiconductor, pharmaceutical, and chemical plant environments.
A 4-Channel Control Module that Separates Multiple High-Risk Zones by Channel and Monitors Everything on One Screen
YHSM-04S-AR: Leak Detection Controller for Acid/Alkali & Inorganic Solutions
Leaks of acids, alkalis, and inorganic solutions can lead to equipment corrosion, process contamination, and safety incidents. That’s why early detection and zone-specific response are essential. YHSM-04S-AR 4-Channel Leak Detection Control Module manages detection signals by zone through four independent channels, while allowing operators to check channel status and alarms on the LCD and integrate with external equipment (beacons, PLCs, valves, etc.). This improves both operational efficiency and response capability in complex chemical handling environments.
⚡️ Simultaneous Monitoring of 4 Zones & Per-Channel Alarm Output
• Monitors leak status across different locations using four independent channels.
• When an abnormal condition occurs, the module outputs alarms (Relay & LED) for the affected channel, enabling fast identification and response for the risk zone.
🔗 Flexible Sensor Integration & Scalable Expansion
• Designed for acid/alkali and inorganic solution sensors, and optimized for broad deployment in 2-wire leak detection sensor environments.
• Expand by channel while keeping existing equipment, allowing flexible 대응 to facility expansion and line changes.
🖥️ Integrated LCD Monitoring & On-Site Configuration
• View detection status and alarm information for all 4 channels on the LCD to speed up on-site response.
• Enable/disable channels and adjust sensitivity per channel to match site conditions.
⚙️ Equipment Integration via Per-Channel & Combined Output Interfaces
• Provides 2 contacts per channel plus 4 combined (system) contacts, enabling both zone-based control and overall system interlocking.
• Easy integration with valves, beacons, PLCs and more, and supports monitoring system integration via RS-485 (Modbus).
"YHSM-04S-AR enables both zone-based detection and centralized monitoring,
building a 4-channel response system for acid/alkali and inorganic solution leaks."
| Model | Product Description | Detection Targets |
| YHSP-SAR | Electronic Leak Point Sensor | For Acid/Alkali & Inorganic Solutions | Acid/alkali and inorganic-solution based chemicals (Does not react to water) (Water-reactive configuration available upon request) |
| YHSP-SAR-Ex | Explosion-Proof Electronic Leak Point Sensor | For Acid/Alkali & Inorganic Solutions |
| Item | Detailed Specification |
| Model | YHSM-04S-AR (4-Channel Leak Detection Control Module) |
| Power Supply | DC 24V (Industrial standard) |
| Power Consumption | 3W (Max) |
| Power Indicator | Red lamp ON |
| Channels | 4CH (up to 4 sensors) |
| Operating Temp./Humidity | 0–40°C / 0–80% RH |
| Dimensions (W×H) | 94 × 178mm |
| Alarm Output | • RS-485 (Modbus), combined beacon/control relay outputs (NO/NC) • Per-channel alarm relay outputs (NO/NC) supported |
| Core Functions | • Select sensors by channel / turn OFF unused channels • Integrated LCD monitoring of settings and status (LCD 60×33mm) • User-adjustable sensitivity for site conditions • RS-485 serial communication (standard Modbus) interface • Compatible with various 2-wire leak sensor environments • Multi-output: 2 contacts per channel + 4 combined contacts (no external relays required) |
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