Chongqing Chuanyi WZGPK-53-P2AJ150G-M-2AM20 Armored Thermocouple

The WZGPK mineral insulated RTD temperature sensor represents advanced industrial temperature measurement technology manufactured under rigorous quality control standards. Utilizing magnesium oxide (MgO) powder insulation compacted within a seamless 321 stainless steel sheath, this flexible sheath RTD probe protects the high-purity Pt100 platinum resistor against severe mechanical stress, harsh vibrations, and corrosive atmospheric conditions. Built with a Class A precision resistor element operating in a 3-wire circuit configuration, it effectively cancels out lead wire resistance errors, ensuring reproducible accuracy and rapid thermal response in cramped pipe bends, narrow process lines, and compact machinery installations.

Featuring a heavy-duty IP65 waterproof cast aluminum junction box with standard M20×1.5 electrical entry and a 304 stainless steel adjustable ferrule compression fitting, the WZGPK series allows flexible immersion depth adjustment during field installation. Designed as an imported-equivalent replacement instrument trusted in major energy, chemical, and manufacturing sectors, this sensor provides high operational reliability, ease of maintenance, and seamless compatibility with secondary display meters, PLC systems, and digital temperature transmitters.

FAQ
Q1: What does the specific model code WZGPK-53-P2AJ150G-M-2AM20 stand for?
A: The model breaks down as follows: WZGPK (Mineral Insulated RTD Series), 5 (Waterproof Cast Aluminum Junction Box), 3 (3-Wire Signal Connection), P2 (Pt100 Platinum Resistor Element), A (Class A Accuracy Class), J (6.0mm Sheath Outer Diameter), 150 (150mm Insertion Length), G (321 Stainless Steel Sheath), M (M20×1.5 Electrical Connection), 2 (Adjustable Compression Fitting), A (304 Stainless Steel Fitting Material), M20 (M20×1.5 Process Fitting Thread).

Q2: Can the flexible mineral insulated sheath be bent during installation?

A: Yes, mineral insulated sheaths can be gently bent with a minimum bend radius (typically 3 to 5 times the sheath outer diameter) along its length to navigate around tight piping obstructions, except for the sensitive tip region containing the internal Pt100 resistor element.

Q3: What is the benefit of a 3-wire Pt100 configuration compared to a 2-wire setup?
A: A 3-wire circuit configuration provides lead wire resistance compensation, neutralizing measurement discrepancies caused by long wire runs between the probe head and control room instruments, resulting in significantly higher system accuracy.

Q4: Do you offer customization options for insertion length, thread sizes, or dual elements?
A: As a direct manufacturer, we provide complete OEM/ODM customization services including custom immersion lengths, NPT/G/BSP process threads, 4-wire elements, dual Pt100/Pt1000 configurations, and 316/316L stainless steel sheaths to meet exact site requirements.

Technical Specifications

Reviewed product specifications

Sensor Type / Element	Single Pt100 Platinum Resistance (100 Ω at 0°C)
Wiring Configuration	3-Wire System
Accuracy Class	Class A: ±(0.15°C + 0.2%
Measuring Range	Standard Type: -50°C to +400°C (-58°F to +752°F)
Sheath Outer Diameter (OD)	6.0 mm (J Code)
Insertion Length (l)	150 mm
Total Length (L)	300 mm (L = l + 150mm)
Connection Material & Thread	304 Stainless Steel, M20×1.5 Thread
Insulation Resistance	≥ 100 MΩ at room temp (15–35°C, humidity ≤ 80%, test voltage 10–100V DC)

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