Precision Weighing × Intrinsic Safety｜General Measure’s Explosion-Proof Weighing Products Beat High-Risk Application Challenges
Published: 2025-09-16 Article source:
【Application Challenges】
In hazardous weighing environments such as chemical, pharmaceutical, and energy industries, do you face three major concerns by using traditional weighing devices?
√ Load cell angle difference causing data drift and batching inaccuracies;
√ Signal instability due to complex electromagnetic interference;
√ Lack of explosion-proof certification posing hidden safety risks.
Therefore, in hazardous scenarios like chemical, pharmaceutical, and energy operations, weighing equipment must be not only precise but also safe and reliable.
General Measure proudly launches the intrinsically safe Explosion-Proof Junction Box GMA-JB4-Ex and the Explosion-Proof Weighing Transmitter GMT-H2ex, delivering a new level of safety, stability, and efficiency for high-risk industrial sites!
New Product 1: GMA-JB4-Ex Explosion-Proof Junction Box
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As an intrinsically safe explosion-proof junction box, the GMA-JB4-Ex is known as the “four-wire load cell hub expert,” designed for weighing applications in hazardous environments:
1. Plug-and-play load cell integration
Quick connection of analog or digital load cells, up to four in total, for efficient communication with weighing indicators and streamlined field wiring.
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2. Accurate corner error correction
Built-in adjustable potentiometers easily compensate for corner load deviations, ensuring every weighing result is precise and reliable.
3. Flexible connection switches
Each load cell port is equipped with high-quality DIP switches, allowing flexible selection of input, independent load cell troubleshooting, and eliminating repeated wiring hassles.
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4. Intrinsic safety explosion-proof design, fully certified
Load cell certification: Ex ia IIC T4 Ga
Protection level: IP65
Suitable for Zone 0 hazardous gas environments.
Equipped with five full stainless-steel flameproof cable glands (Ex db IIC Gb, IP66).
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5. Full stainless-steel housing, strong anti-interference
Rugged 304 stainless-steel enclosure provides excellent EMI shielding and corrosion resistance for harsh environments.
New Product 2: GMT-H2ex Explosion-Proof Weighing Transmitter
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The GMT-H2ex is a high-performance explosion-proof weighing transmitter, built for precise measurement and weight data transmission in industrial applications:
1. Clear display, easy operation
6-digit, 2-inch high-brightness LED display visible from a distance.
Equipped with four metal keys for quick operation, even while wearing gloves.
2. Dual power supply, wide adaptability
Supports AC 110–220V or DC 24V input, meeting diverse industrial needs.
3. Reinforced explosion-proof enclosure
Material: high-strength cast aluminum.
Certification: Ex db [ia IIC Ga] IIB T6 Gb.
Built-in intrinsically safe barrier simplifies connection to intrinsically safe load cell, improving efficiency and saving cost.
Ensures stable operation even in harsh environments with high temperature, humidity, or dust.
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Core Advantages of the Combination of Weighing indicator and Junction Box
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1. Explosion-Proof Safety Shield
- Junction box certified Ex ia IIC T4 Ga (suitable for Zone 0).
- Weighing Transmitter certified Ex db [ia IIC Ga] IIB T6 Gb, with built-in six-wire intrinsically safe barrier for dual protection at enclosure and circuit levels.
- Build a complete explosion-proof chain from load cell to display terminal.
2. Military-Grade Hardware Protection
- Junction box: full stainless-steel housing, IP65 protection.
- Weighing Transmitter: cast aluminum flameproof enclosure, resistant to internal explosion pressure and external impact.
- Superior EMI-resistant design ensures stable operation even near inverters and large motors.
3. Smart Calibration Technology
- Junction box: corner-load compensation system with precision potentiometer, achieving ±0.02% corner error correction.
- Multi-type compatibility: supports both digital and analog load cells.
- Weighing Transmitter: dual redundant power supply (AC 110–220V / DC 24V).
When Precision Meets Intrinsic Safety, General Measure safeguards industrial weighing with expertise. The GMA-JB4-Ex Intrinsically Safe Junction Box and GMT-H2ex Explosion-Proof Transmitter deliver a safe and reliable weighing solution tailored for hazardous environments.