Product Overview

This explosion-proof manual fire call point is a manual alarm station specially designed for hazardous areas with flammable gases. By pressing the operation panel, it sends a fire signal to the fire alarm control panel. The product adopts intrinsically safe explosion-proof design with Ex ib IIC T6 Gb marking, suitable for Zone 1 and Zone 2 hazardous areas containing IIA, IIB, IIC class T1-T6 combustible gases. Built with a microprocessor and non-polarized two-bus technology, the transmission distance can reach up to 1000 meters. It can seamlessly connect with controllers, providing reliable manual fire alarm functionality for chemical plants, petroleum facilities, gas stations, and similar locations.

Applicable Places

This product is widely used in the following commercial and industrial premises:

• Petrochemical Industry: Refineries, chemical plants, oil depots, gas stations, filling stations

• Gas Facilities: Natural gas stations, LPG stations, gas pressure regulating stations

• Industrial Plants: Spray painting workshops, printing workshops, lithium battery production workshops

• Hazardous Material Warehouses: Chemical warehouses, flammable material storage areas

• Laboratories: Chemical laboratories, hazardous material storage areas in research institutions

• Commercial Support Areas: Underground parking lots, boiler rooms, electrical rooms with combustible gas risks
  

  Core Advantages

  1. Intrinsically Safe Explosion-Proof Certified

  The product has passed strict inspection by the National Center for Quality Supervision and Testing of Explosion-Proof Electrical Products (CQST) with Ex ib IIC T6 Gb marking, suitable for explosive environments containing IIA, IIB, IIC class T1-T6 combustible gases. The intrinsically safe design requires connection with a safety barrier, ensuring that even in case of failure in hazardous areas, it will not generate sparks or high temperatures sufficient to ignite explosive gases, providing reliable safety assurance for high-risk places like petrochemical facilities.

  2. Microprocessor Control Stable Performance

  Built with a high-performance microprocessor and SMT surface mount technology, the components have good consistency and high reliability. Intelligent algorithms accurately identify button activation status, avoiding false alarms. Electronic addressing allows on-site programming with a dedicated encoder, with an addressing range of 1-200 points, facilitating engineering commissioning and later maintenance.

  3. Non-Polarized Two-Bus Long-Distance Communication

  Adopting non-polarized two-bus technology, the standby current is ≤0.3mA and alarm current ≤1mA, achieving extremely low power consumption. The communication distance can reach up to 1000 meters, supporting coverage of large industrial areas. The non-polarized bus design eliminates the need for polarity distinction during wiring, significantly reducing installation difficulty and labor costs.

  4. Plug-In Structure Easy Maintenance

  The button body adopts a plug-in structure design. During installation, simply insert the encoded body into the base and secure with self-tapping screws. Disassembly and maintenance are equally simple and quick. The operation panel must be reset with a special key after being pressed, preventing unauthorized operation and ensuring system management security.

  5. Clear Indication Easy Status Recognition

  The panel features a red fire alarm indicator light that flashes momentarily in normal monitoring status and becomes steady red when activated. The status display is clear and intuitive. Even in dimly lit industrial environments, the working status and alarm status of the button can be easily identified.

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  Explosion-Proof Safety Instructions

  This product is an intrinsically safe explosion-proof device. The following requirements must be strictly observed during use:

  • Must be used with a safety barrier that has obtained an explosion-proof certificate

  • The positive and negative terminals of the safety barrier input must not be reversed

  • When multiple safety barriers are used in the same circuit, they must be connected in parallel at the input end; cascade connection is prohibited

  • Never wipe the device housing with a dry cloth in explosive environments

  • For cleaning, perform in a well-ventilated area without gas leakage, and wipe with a wrung damp cloth

  • This product is a single-use device; once damaged, it cannot be repaired

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  Technical Specifications

  
  

  
  

  Parameter	Specification
  Operating Voltage	DC 18-28V (via safety barrier)
  Standby Current	≤0.3mA (24V)
  Alarm Current	≤1mA (24V)
  Explosion-Proof Marking	Ex ib IIC T6 Gb
  Addressing Method	Electronic encoder
  Addressing Range	1-200
  Indicator Light	Standby: Flashing momentarily; Alarm: Steady red
  Wiring Method	Two-bus, non-polarized
  Transmission Distance	≤1000m (conductor cross-section ≥1.0mm²)
  Operating Temperature	-10℃ to +55℃
  Storage Temperature	-30℃ to +75℃
  Relative Humidity	≤95% (40±2℃)
  Dimensions	90mm×90mm×52mm
  Weight	170g
  Mounting Hole Distance	60mm (compatible with 50mm)
  Recommended Wire	RVS 2×1.5mm² twisted pair

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  Commercial Application Value

  Ensure Safety in High-Risk Places: Intrinsically safe explosion-proof design meets fire protection requirements for hazardous areas such as petrochemical and gas facilities, effectively preventing explosion risks.

  Reduce False Alarm Losses: Microprocessor intelligent recognition accurately identifies button activation, reducing production interruptions and unnecessary evacuations caused by false alarms.

  Save Construction Costs: Non-polarized two-bus design simplifies wiring processes, saving cable and labor costs; long-distance communication capability reduces the need for relay equipment.

  Efficient Management: Special key reset prevents unauthorized operation; plug-in structure facilitates maintenance; clear indicator light status reduces operational difficulty.

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  Installation and Usage Instructions

  1. Wiring Requirements: Use RVS 2×1.5mm² twisted pair, loop resistance ≤20Ω

  2. Address Setting: Write address code (1-200) using a dedicated encoder before installation

  3. Base Installation: Secure the base to the wall using a pre-embedded box or expansion bolts, mounting hole distance 60mm

  4. Wiring Method: Connect loop bus L1 and L2 to terminals 1 and 2, no polarity requirement

  5. Body Installation: After wiring inspection, insert the encoded button body into the base and secure with self-tapping screws

  6. Reset Operation: After alarm, the operation panel must be reset using the special key

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  Precautions

  • Must be used with a safety barrier; never connect directly to the controller bus

  • Safety barrier parameter matching must follow Uo≤Ui, Io≤Ii, Po≤Pi principles

  • Never disassemble or wipe the device in explosive environments

  • This product is a single-use device; once damaged, it cannot be repaired

  • Installation should comply with GB3836.15-2010 regulations and be performed by professionals
    

About Us:
  Guangzhou Xingjin Fire Equipment Co., Ltd. is a professional enterprise dedicated to the research, development and production of HFC-227ea (FM200), Novec1230, CO2 and inert gas products. For many years, the company has been committed to improving product quality, enriching product varieties and optimizing product specifications.
  At present, our company's popular FM200 products are widely used, such as: pipe network FM200 fire extinguishing system, cabinet FM200 fire extinguishing system, automatic FM200 fire extinguisher (ceiling type), fire detection tube fire extinguishing system, and automatic fire extinguishing pipe. In addition, our inert gas fire extinguishing systems are also becoming increasingly popular, such as the IG541 (nitrogen) fire extinguishing system, IG100 (nitrogen) fire extinguishing system, and IG55 (argon) fire extinguishing system. Due to our high-quality products and services as well as our good reputation, our company is highly praised by customers all over the world.

Our factory:
  The factory is divided into multiple areas, mainly used for the production of gas cylinders, gas filling, product inspection, goods packaging, storage of goods, sample display, etc. We have our own professional production and testing equipment, such as bottle washing machines, dryers, valve loaders, gas filling machines, etc

Our products:
  HFC-227ea (FM200), Novec1230, CO2 and inert gas series products (such as pipe network, suspended, external pressure storage, cabinet, integrated cabinet, fire detection pipe, portable fire extinguisher, gas cylinder), fire extinguishing pipe, complete alarm system, foam fire extinguishing series (such as vertical/horizontal foam tank, foam agent, filling machine, fire cannon), hot aerosol and other fire extinguishing equipment .

Our services:
   We have a professional and mature team, including a solution design team, a skilled installation team, a quality inspection team and an after-sales service team.
 

Our honors:
   Since its establishment in 2010, the company has won numerous praises and honors. In 2014, it was awarded the title of "AA-level Credit Company" by the China Fire Protection Association. In addition, all of our products have passed the CCC test and have relevant certificates for each product.
 

The main market:
  Our target customers are people all over the world who need fire-fighting equipment. So far, we have rapidly developed the market in Southeast Asia, the Middle East and Africa, and have received high praise from a wide range of customers. In the coming years, we will strive to explore other foreign markets.

We are ready for challenges, so please do not hesitate to send an inquiry to us!