Industrial-grade explosion-proof platinum resistance thermometer

Industrial Explosion-Proof Platinum Resistance Products Features:

An industrial explosion-proof platinum resistance thermometer is a type of temperature sensor. It is widely used in industrial automatic control systems. Through the temperature sensor, the temperature parameters of the control object can be converted into electrical signals, transmitted to display, recording, and regulating instruments, and the system can be monitored, adjusted, and controlled. In chemical factories and production sites, various flammable and explosive gases and vapors are often present. Using ordinary platinum resistances is extremely unsafe and can easily cause environmental gas explosions. Therefore, in such situations, explosion-proof thermocouples must be used as temperature sensors. Our factory's explosion-proof platinum resistance products are suitable for use in areas with explosive gas hazards within the temperature class range of d ii bt4 to d ii ct6. The explosion-proof thermocouples produced by our factory use imported components as the sensing elements, and their technical performance meets the industrial platinum electrical technology conditions and scale in ZBY301-85. At the same time, the products comply with the general requirements for explosion-proof electrical equipment used in explosive environments, as specified in GB3836.1-83 and GB3836.2-83 standards.

◆ Industrial Explosion-Proof Platinum Resistance ThermometerKey Technical Specifications

Range Specifications

Note: "t" represents the absolute value of the actual temperature of the thermosensitive element; only the b-grade platinum resistance thermometers are supplied.

Resistance thermometers allow current to pass through.

The measured current through the platinum resistance shall not exceed 5mA.

Explosion-proof types and groups

Intrinsically Safe Groups: d II BT4 or d II CT4; d II BT6 or d II CT6

Shell Protection Grade: IP54

Principle Structure

Explosion-proof thermistors and assembled thermistors have similar structures and principles. The main difference lies in the junction box (housing) of the explosion-proof products.

The design incorporates a special explosion-proof structure, with the junction box made of high-strength aluminum alloy die casting, featuring ample internal space and walls.

Thickness and mechanical strength, as well as the thermal stability of the rubber sealing rings, comply with national explosion-proof standards. Therefore, when explosive mixtures are inside the junction box,

When the body explodes, the internal pressure will not damage the junction box, and the resulting heat energy cannot propagate outward—detonate.

Due to the product's adoption of the aforementioned explosion-proof special structure, it fully complies with use in explosion-proof temperature ratings from d ii bt4 to d ii ct6.

Within the specified group range, the product can achieve a reliable explosion-proof effect as long as the user strictly adheres to the product usage rules.

Description of categories, levels, and temperature classes for electrical equipment:

Electrical equipment is divided into two categories: i) Equipment for use in coal mine underground.

ii Class - Industrial Electrical Equipment

Intrinsically Safe Rating

Explosion-proof thermal resistorThe explosion-proof grade is rigid, and it applies to the maximum safe gap for explosive gas mixtures, which is divided into three levels: a, b, and c.

Temperature Category

Explosion-proof tropical inner resistance is divided into six groups (t1~t6) according to the highest surface temperature of its exposed part.

Types and specifications

Types and Specifications