產品中文介紹：

WZPK-374S電接點雙金屬溫度計是一款適用于工業(yè)過程溫度監(jiān)測與控制的精密儀表。該產品采用雙金屬片傳感技術實現溫度-機械位移轉換，配合可調節(jié)電接點系統，可對設定溫度閾值進行精確控制。其結構設計兼顧實用性及環(huán)境適應性，可廣泛應用于石油化工、食品醫(yī)藥、暖通空調等領域的溫度監(jiān)控場景。

本產品核心組件由高精度雙金屬元件、精密傳動機構和定制化電接點模塊構成。螺旋盤繞的雙金屬片隨溫度變化產生形變位移，通過機械傳動放大帶動表盤指針旋轉。表殼采用304不銹鋼整體沖壓成型，配合雙層密封結構設計，使儀表具備IP65防護等級，可有效抵御粉塵侵入和水流噴濺。玻璃表蓋采用5mm厚鋼化玻璃，具有優(yōu)良的抗沖擊性能。

溫度測量范圍覆蓋-50℃至500℃區(qū)間，根據用戶需求可提供不同量程定制方案。指針式表盤采用熒光涂層工藝，確保在低照度環(huán)境下仍可清晰讀數。電接點系統配備高靈敏銀合金觸點，接觸電阻穩(wěn)定在50mΩ以下，支持最高250V交流電壓或380V直流電壓的電路控制需求。接點動作重復精度達到±1% F.S.，有效保障控制系統的可靠性。

產品安裝方式靈活多樣，支持軸向/徑向安裝、法蘭固定或螺紋連接等多種形式。表體底部預留標準過程接口，可適配G1/2、NPT 1/2等多種工業(yè)管螺紋規(guī)格。為適應復雜工況環(huán)境，可選配散熱管、冷凝彎管等輔助配件，在高溫或強震動場景中保持測量精度。

使用過程中建議定期進行示值校驗，保持表體清潔避免介質結晶影響傳動機構。接觸點部位建議每5000次動作后實施觸點清潔維護。本產品不適用于強腐蝕性介質或劇烈機械振動的極端環(huán)境，安裝時需避開設備共振頻率區(qū)域。

產品英文介紹：

The WZPK-374S Bimetal Thermometer with Electrical Contact is a precision instrument designed for industrial temperature monitoring and process control applications. Utilizing bimetal strip sensing technology, this device achieves accurate temperature measurement through mechanical displacement conversion. The adjustable electrical contact system enables precise temperature threshold control, making it suitable for diverse industrial scenarios including petrochemical processing, food & pharmaceutical production, and HVAC systems.

This thermometer features a robust construction with a 304 stainless steel casing manufactured through integral stamping process. The hermetically sealed structure provides IP65 protection rating, effectively resisting dust ingress and water spray. The 5mm tempered glass window ensures excellent impact resistance while maintaining clear visibility. The fluorescent-coated dial facilitates easy reading under low-light conditions.

With a temperature measurement range spanning from -50℃ to 500℃, the device offers customizable scale ranges to meet specific application requirements. The electrical contact system employs silver alloy contacts with stable resistance below 50mΩ, capable of switching circuits up to 250V AC or 380V DC. The repeatability accuracy of contact action achieves ±1% F.S., ensuring reliable control system operation.

Installation flexibility is ensured through multiple mounting options including axial/radial orientation, flange fixation, and threaded connections. Standard process interfaces at the base accommodate various industrial thread specifications such as G1/2 and NPT 1/2. Optional accessories like cooling fins and siphon tubes enhance performance in high-temperature or vibrating environments.

The bimetal sensing element consists of precision-wound helical strips that convert thermal expansion into rotational movement through an optimized gear amplification mechanism. This design delivers stable output with minimal hysteresis. Regular maintenance including dial calibration and contact cleaning after 5,000 operations is recommended to maintain optimal performance. The product should be avoided in strongly corrosive media or environments with excessive mechanical vibration.