1. Product Overview
The Induskey SGA-ZHB-1 is a single-channel signal conversion board developed specifically to operate with smart gas sensor modules. The board accepts one SGA-400/700 series smart gas sensor module — with no restriction on measuring range or sampling method — and directly outputs RS485, RS232, USB-to-TTL serial signals, and 0-5V analog signals, giving equipment manufacturers a ready-made acquisition front end for gas concentration monitoring.
Through the inserted sensor module, the board is compatible with electrochemical, PID (photoionization), catalytic combustion, and infrared sensing principles, covering more than 1,000 combustible, toxic, and volatile gases. Every smart sensor module is precisely calibrated at the factory, so no further calibration is required after insertion. The intrinsically safe circuit design with reverse-connection and short-circuit protection safeguards both board and host equipment.
With a footprint of only 55 × 55 mm, the board is designed to be embedded inside the customer's own instruments, terminals, and devices where installation space is limited. It solves the integration problem of adding gas detection capability to OEM equipment: standardized serial outputs and an open communication protocol allow straightforward commissioning and secondary development without designing a sensor front end from scratch.
2. System Architecture
The SGA-ZHB-1 operates as a compact single-channel signal acquisition and conversion unit with the following core components:
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Smart Sensor Socket: Accepts one SGA-400/700 series smart gas sensor module with unrestricted range and sampling method. Modules are precisely factory-calibrated and ready to use without recalibration.
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Signal Conversion Circuit: Directly outputs RS485, RS232, USB-to-TTL serial, and 0-5V analog signals, allowing customers to acquire communication signals without additional conversion circuitry.
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Power Management Module: DC 24V input with high-stability, ultra-low-ripple voltage regulator switch ensuring clean power for consistent sensor performance.
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Protection Circuitry: Intrinsically safe design with reverse-connection and short-circuit protection for both board and host equipment.
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Communication Protocol: Open protocol simplifies commissioning and secondary integration, shortening development time for OEM customers.
3. Key Features & Competitive Advantages
A. Compact 55 × 55 mm Footprint
B. Direct Multi-Signal Output
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Directly outputs RS485, RS232, USB-to-TTL serial, and 0-5V signals.
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Customers can acquire communication signals without additional conversion modules.
C. Plug-and-Play Smart Sensor Socket
D. Intrinsically Safe, Protected Circuitry
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Intrinsically safe circuit design with reverse-connection and short-circuit protection.
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High-stability, ultra-low-ripple voltage regulator switch ensures clean power for consistent performance.
E. Open Communication Protocol
F. Patented Technology, Fast Response
G. Broad Gas Compatibility
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Compatible with electrochemical, PID, catalytic combustion, and infrared principles.
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Supports more than 1,000 combustible, toxic, and volatile gases for strong gas coverage.
4. Technical Specifications
5. Applications
The Induskey SGA-ZHB-1 is engineered for versatile integration across OEM and embedded system development scenarios:
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OEM Gas Detection Equipment Integration: Ready-made acquisition front end for manufacturers adding gas detection to their product lines.
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Space-Constrained Embedded Devices: Ultra-compact 55×55mm form factor fits inside instruments, terminals, and portable devices.
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Secondary Development via Open Protocol: Standardized serial outputs and open protocol enable rapid firmware and software development.
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Multi-Gas Expansion with Sensor Modules: Swap SGA-400/700 sensor modules to change target gas without redesigning hardware.
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Serial Data Acquisition Front Ends: Direct RS485/RS232/USB-to-TTL output for connection to PLCs, DCS systems, and data loggers.
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Modular Instrument Upgrades: Add gas detection capability to existing analytical instruments and control panels.
6. Host System & Optional Cloud Platform Integration
To maximize operational flexibility, the SGA-ZHB-1 seamlessly integrates with host systems and the optional Induskey industrial IoT Cloud Platform via standardized serial outputs.
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Real-Time Data Acquisition: RS485, RS232, and USB-to-TTL outputs enable direct connection to PLCs, DCS systems, data loggers, and microcontrollers for real-time gas concentration monitoring.
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Multi-Node Network Integration: RS485 Modbus protocol supports multi-drop networking of multiple SGA-ZHB-1 boards, facilitating centralized gas monitoring across distributed OEM equipment.
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Alarm & Control Logic: 0-5V analog output and digital serial signals enable integration with alarm controllers, relay modules, and automated ventilation or shutdown systems.
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Cloud Platform Uplink: When connected to a host gateway, measurement data can be uploaded to the Induskey IoT Cloud Platform for remote monitoring, historical trending, and alarm notification via PC and mobile APP.
