The WZPK-22I-C(E) is a high-precision, integrated armored platinum resistance temperature transmitter developed specifically for industrial temperature measurement and monitoring applications. This transmitter utilizes a high-quality PT100 platinum resistance sensing element and features a compact design that integrates temperature sensing, signal acquisition, amplification, and signal conversion functions into a single unit. Characterized by stable performance, strong anti-interference capabilities, and excellent environmental adaptability, it complies with the JB/T8622-1997 industrial instrumentation standard. This model supports two output modes—resistance signals and standard 4-20mA analog signals—and is capable of accurately converting temperature variations in the ambient environment or process media into standard electrical signals. These signals can then be utilized by industrial control systems, such as PLCs and DCSs, to facilitate real-time temperature monitoring and automated control.
The WZPK-22I-C(E) transmitter features an explosion-proof and waterproof structural design, making it suitable for use in harsh industrial environments. Its built-in high-precision signal processing circuitry effectively eliminates temperature drift and signal attenuation, thereby ensuring long-term, stable, and accurate temperature measurement. As a versatile temperature measurement instrument, this product is widely applied across numerous industrial sectors, including petroleum, chemical engineering, electric power, metallurgy
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Technical Item
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Parameter Specification
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Product Model
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WZPK-22I-C(E)
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Sensing Element
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PT100 Platinum Resistance
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Measurement Temperature Range
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-70℃ ~ +600℃
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Accuracy Grade
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Class A: ±0.15℃; Class B: ±0.3℃; Industrial Standard: ±0.5%FS
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Output Signal
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PT100 Resistance Signal / 4~20mA DC Standard Analog Signal
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Power Supply Voltage
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12.5~36VDC (Standard 24VDC)
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Maximum Load Resistance
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600Ω (24VDC Power Supply)
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Temperature Coefficient
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±0.05%FS/℃
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Response Time
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≤1s (63% Step Temperature Change)
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Protection Grade
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IP67
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Explosion-proof Grade
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E-type explosion-proof (Optional for C(E) model)
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Protective Tube Material
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316 Stainless Steel
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Ambient Working Temperature
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-40℃ ~ +85℃
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Insulation Resistance
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≥100MΩ (250VDC, 15℃~25℃)
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Warranty Period
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18 Months
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Executive Standard
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JB/T8622-1997 Industrial Instrument Standard
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