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Happy Labor Day！     High-precision temperature measuring instruments safeguard quality! Every bit of hard work deserves to be cherished, and every act of perseverance deserves to be protected. ZHICE-ELEC specializes in high-precision temperature measurement and control. With a precision of ±0.1℃, we ensure the safety of your production!         Holiday Notice   Holiday Schedule: May 1 - May 5, 2025 (5-day holiday), resume work on May 6, 2025. Holiday Service Arrangements: During the holiday, for technical consultations, product configuration, solutions, product quotations, or other needs, please contact us via: Pre-sales Consultation: info@zhice-elec.com / blair.li@zhice-elec.com

On April 25, 2025, amid the vitality of spring, the 66th National Pharmaceutical Machinery Exposition (CIPM) successfully concluded at the Chongqing International Expo Center. As the most influential professional exhibition in the pharmaceutical equipment industry, this year's event gathered 1,686 leading companies from 24 countries and regions, attracting over 60,000 professional visitors from the pharmaceutical, health supplement, food, and other related industries — creating an unprecedented grand occasion.     As a high-tech enterprise specializing in precision measurement and verification equipment, ZHICE-ELEC (Booth No.: International Hall 3, S3-34) made a brilliant appearance with a range of flagship products. During the exhibition, we engaged in in-depth discussions with industry colleagues from around the world, exploring new opportunities for technological innovation and industrial upgrading.     Spotlight on Innovation: ZHICE-ELEC’s Star Products Steal the Show   ZCLOG Wireless Thermal Validation System     ZCLOG Series Wireless Data Loggers set a new standard in precision monitoring, offering wire-free convenience for pharmaceutical, food storage, and industrial environments, and especially used in Autoclave, Dry Heat Sterilizers and Ethylene Oxide (EtO) Sterilizers. Built for durability and high accuracy, they feature versatile probe options to measure temperature, humidity and pressure. Through ZCLOG THCal, ZCLOG VALIDATION and ZCLOG DAQ software, users can achieve enhanced calibration of environmental test equipment, temperature validation analysis for sterilization devices, and comprehensive parameter monitoring. Along with the 10-channel adapter for data downloading and PC connection, ZCLOG series wireless data loggers delivering laboratory-grade accuracy with unmatched flexibility for quality control and compliance.    Reference Thermometer     The 1621A single-channel and 1622A dual-channel reference thermometers combine high precision with exceptional portability, offering versatile measurement capabilities for PRTs, thermocouples, and thermistors. Featuring sensor calibrationand transmitter verification functions, these instruments ensure traceable accuracy across all measurements. With built-in data storage and rugged design, they are ideal for metrology calibration labs, scientific research, and demanding industrial field measurements such as process transmitter validation.     The 1625A Portable Reference Thermometer sets a new standard for field and laboratory temperature measurement with its 4-channel parallel acquisition capability, supporting PRTs, thermistors, and thermocouples with unmatched accuracy. Designed for professionals in metrology, industrial process control, and scientific research, this versatile instrument combines laboratory-grade precision with rugged portability.   Shaping the Future: ZHICE-ELEC Empowers 'Smart Manufacturing' Advancement     This year's exposition centered on "Identifying Opportunities Amid Uncertainty," featuring 92 technical exchange sessions and high-level forums that explored critical industry themes including domestic substitution of pharmaceutical equipment and digital transformation. With over two decades of technological expertise, ZHICE-ELEC continues to pioneer innovation-driven solutions:   Localization Breakthroughs Our independently developed precision temperature measurement systems reduce import reliance, strengthening supply chain resilience.   Intelligent Solutions Wireless validation systems and other cutting-edge products help pharmaceutical manufacturers achieve cost efficiency while accelerating smart factory implementation.   International Expansion Strategic partnerships with clients in Thailand, India and other international markets demonstrate our commitment to bringing Chinese innovation to the world stage.     Building on Technology: ZHICE-ELEC Advances Together with the Industry Since its establishment in 2003, ZHICE-ELEC has been dedicated to high-precision temperature measurement and validation technologies, serving diverse sectors including biopharmaceuticals, food processing, and chemical industries. At this exhibition, we not only demonstrated our technological capabilities, but also gained valuable insights through in-depth exchanges with clients and partners, further clarifying industry needs and technological trends. Moving forward, we will continue to pursue our "Specialization, Refinement, Differentiation, and Innovation" development strategy, leveraging innovation as the driving force to inject greater certainty into the high-quality development of the pharmaceutical industry.   We extend our sincere gratitude to all visitors at Booth S3-34. Together, let us anticipate our next meeting and open a new chapter in temperature validation technology!

Validation Solutions We are pleased to announce that ZHICE-ELEC will be exhibiting at the 66th  National Pharmaceutical Machinery Exposition (CIPM), taking place from April 23–25, 2025, at the International Expo Center, Chongqing, China. You can find us at International Hall S3, Booth S3-34. We sincerely invite you to visit our booth and join us in this exciting industry event. This premier industry event will gather over 1,600 leading industry players from 24 countries and regions, tens of thousands of professionals will meet in the flagship event of the pharmaceutical equipment industry. Moreover, the expo will also feature in-depth forums where over 100 industry experts and business leaders will share insights and explore pathways to industry transformation.   At this year’s event, ZHICE-ELEC will showcase our cutting-edge sterilization validation and monitoring solutions for the pharmaceutical and life sciences industries. Our key exhibits include:   • Wired Thermal Validation System                                                     • Wireless Thermal Validation System                               • Real-Time GSP Validation System                                                   • Real-Time Temperature & Humidity Monitoring System                             • Steam Quality Testing Kit                                                                  • Automatic Pure Steam Sampler                                                               • High-Precision Temperature Sensors   • Temperature Transmitter     About Us： Founded in 2003, ZHICE-ELEC is a national high-tech enterprise. We are dedicated to the research, development, and manufacturing of high-precision measurement and calibration equipment, including electric signal detectors, thermo-hygrometer, sensors, transmitters, dry block calibrator , and temperature control systems. Since 2009, we have been a trusted partner to the biopharmaceutical industry, providing GMP/GSP-compliant validation solutions and field instruments such as: Sterilization Validation Systems Environmental Monitoring Pure Steam Quality Testing & Intelligent Sampling Systems Process Calibrators With a strong focus on innovation and quality, ZHICE-ELEC continues to support pharmaceutical and related industries. We look forward to welcoming you!

High-Precision Measurement ZHICE-ELEC is proud to announce the launch of its latest innovation: the 224 Series Dual Channel Handheld Thermometer, designed for professionals who demand accuracy and reliability in temperature measurement. The new thermometer series offers two-channel laboratory-level precision, making it an indispensable tool for applications in research, industrial processes, and quality assurance.     Key Features of the 224 Series The 224 Series 2 channel thermometer is available in three models to suit diverse needs: 224RTD: Optimized for Resistance Temperature Detectors (RTDs), delivering unparalleled accuracy and stability. 224NTC: Specially designed for Negative Temperature Coefficient (NTC) thermistors, ensuring precise and rapid temperature readings. 224TC: Compatible with a wide range of thermocouples, making it versatile for various industrial and laboratory applications.   Each model features: Two-Channel Capability: Simultaneous measurement from two sensors, enabling comparative and differential temperature analysis. High Precision: Laboratory-grade measurement accuracy to meet the most stringent requirements. User-Friendly Interface: Intuitive controls and a clear display for ease of operation. Robust Design: Durable, ergonomic construction for reliable performance in demanding environments.   Meeting the Needs of Professionals Whether you are conducting experiments in a laboratory, monitoring temperature-sensitive processes in an industrial setting, or performing field measurements, the 224 Series Handheld Digital Thermometer delivers the performance you need. Its compatibility with various sensor types ensures versatility, while the dual-channel feature enhances productivity by allowing simultaneous data collection.   Availability The 224RTD, 224NTC, and 224TC models are now available for purchase. For more information, please visit our official website or contact our sales team.   About ZHICE-ELEC ZHICE-ELEC is a global leader in temperature measurement solutions, specializing in precision temperature instruments for industrial, laboratory, and environmental applications. With a focus on quality and innovation, ZHICE-ELEC is dedicated to helping customers achieve accurate and reliable results. Stay tuned for more updates as we continue to expand our product offerings to meet the evolving needs of our clients worldwide.  

Calibration involves comparing a device under test (DUT) with an unknown value against a reference standard with a known value. This process is typically performed to identify the error in the DUT or to verify its accuracy. For instance, consider calibrating a thermometer by measuring its temperature reading in water at the known boiling point of 212 degrees Fahrenheit. To enhance precision, you might use a calibrated reference thermometer with an exact known value to verify the DUT thermometer, as visually determining the exact boiling point can be imprecise. Following calibration, the next logical step might be to make corrective adjustments to the instrument to minimize measurement errors, although technically, this step is distinct from calibration.   International System of Units (SI) – The Top Level of Known Measurement Standards How do we arrive at measurement standards of known values against which we calibrate our devices under test? For the answer, we turn to the International System of Units, abbreviated “SI”, which is derived from “Le Système International d'Unités” in French. The SI consists of seven base units which are the second, meter, kilogram, ampere, kelvin, mole and candela. The seven base SI units are derived from quantities in nature that do not change, such as the speed of light.       Calibration Interoperability A key benefit of having the BIPM manage the SI on a worldwide basis is calibration interoperability. This means that all around the world, we are using the same measurement system and definitions. This allows someone in the U.S. to purchase a 1-ohm resistor in Australia and be confident that it will be 1 ohm as measured by U.S. Standards, and vice versa. In order to have interoperability, we need to have all of our measurements traceable to the same definition.   Calibration Accreditation When calibrations are conducted, ensuring the reliability of the process is crucial. Calibration accreditation instills this trust by giving instrument owners confidence that the calibration was performed correctly. Accreditation signifies that a calibration process has been reviewed and found to comply with internationally accepted technical and quality metrology standards. The global metrology quality standard to which calibration laboratories are accredited is ISO/IEC 17025.   Calibration Certificates A calibration laboratory often provides a certificate with the calibration of an instrument. The calibration certificate provides important information to give the instrument’s owner confidence that the device was calibrated correctly and to help show proof of the calibration. A calibration certificate might include a statement of traceability or a list of the calibration standards used for the calibration, any data resulting from the calibration, the calibration date, and possibly pass or fail statements for each measurement result. Calibration certificates vary because not all calibration laboratories follow the same industry standards, and they also can vary depending on where the calibration fits within the calibration pyramid or hierarchy. For example, the calibration certificate required for a grocery store scale may be very simple, while the calibration certificate for a precision balance in a calibration laboratory may have a lot more technical content. Calibration certificates coming from an accredited calibration process have some very particular requirements which can be found in the international standard ISO/IEC 17025.  

Introductions RTDs use a high-precision resistor, typically made of platinum, whose resistance increases with temperature. They offer high accuracy and stability thus are commonly used in industrial applications and typically come in 2, 3, or 4-wire configurations. Thermocouples consist of a junction between two different metal alloys, generating a voltage that varies with temperature. They are versatile, cost-effective, and can measure a wide range of temperatures. Common types include J, K, T, and N, each defined by the metals used and their specific temperature range and sensitivity. NTC thermistors are resistors that decrease in resistance as temperature increases. They are highly sensitive and respond quickly to temperature changes, making them suitable for applications requiring rapid detection of temperature variations.   Thermocouple, Platinum Resistance & Thermistor Comparison     Platinum Resistance Thermometer Thermocouple Thermistor Sensor Platinum-wire wound or flat- film resistor Thermoelement. two dissimilar metals/alloys Ceramic [metal oxides] Accuracy (typical values) 0.1 to 1.0℃ 0.5 to 5.0℃ 0.1 to 1.5℃ Long term Stability Excellent Variable,Prone to ageing Good Temperature range -200 to 650℃ -200 to1750℃ -100 to 300℃ Thermal response Wirewound-slow Film-faster 1-50 secs typical Sheathed -slow Exposed tip- fast 0.1 to10 secs typical generally fast0.05 to 2.5 secs typical Excitation Constant current required None None Characteristic PTC resistance Thermovoltage NTC resistance (some are PTC) Linearity Fairly linear Most types non-linear Exponential Lead resistance effect 3 8 4 wire-low. 2 wire -high Short cable runs satisfactory Low Electrical“pick-up” Rarely susceptible Susceptible Not susceptible Interface Bridge 2,3 or 4 wire Potentiometric input.Cold junction compensation required 2 wire resistance Vibration effects/shock Wirewound -not suitable.  Film-good Mineral insulated types suitable Suitable Output/characteristic approx.0.4 W/℃ From 10uV/℃ to to 40μv/℃ depending on type -4%/℃ Extension Leads Copper Compensating cable Copper Cost Wirewound-more expensive Film-cheaper Relatively low cost Inexpensive to moderate   How to choose between RTD Sensors and Thermocouples RTD Sensors: Resistance Thermometers (RTDs) use a high-precision resistor, typically platinum, which increases in resistance as temperature rises. The widely adopted Pt100 standard has a resistance of 100.0 Ohms at 0°C and changes by 38.50 Ohms from 0 to 100°C. Platinum resistors provide highly stable and accurate temperature measurements. RTDs are usually 2-wire devices but can be extended to 3 or 4 wires for enhanced accuracy. Thermocouples: Thermocouples consist of a junction between two different alloys and a two-wire extension. The EMF generated between the hot junction and a reference junction creates a stable and repeatable temperature measurement. Various thermocouple types (e.g., J, K, T, N) are defined by the alloys used, each displaying distinct EMF characteristics.   RTD’s are, generally:  • More expensive  • More accurate  • Highly stable (if used carefully)  • Capable of better resolution  • Restricted in their range of temperature  • Stem, not tip sensitive  • Rarely available in small diameters (below 3mm)   Thermocouples are, generally:  • Relatively inexpensive  • More rugged  • Less accurate  • More prone to drift  • More sensitive  • Tip sensing  • Available in smaller diameters  • Available with a wider temperature range  • More versatile   Conclusion Each sensor type has its strengths and is chosen based on the specific requirements of the application, such as accuracy, temperature range, response time, and cost.