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<title><![CDATA[EC21 Product Catalogs - product principle]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/product-principle--2717/1/product principle.html]]></link><item>
<title><![CDATA[WDLYCH 0-5 0-10 Megaohm Resistance Meter AC DC Insulation Monitor for Marine Electrical Net On Ship]]></title><link><![CDATA[https://jade900920.en.ec21.com/WDLYCH-0-5-0-10--11663243_12033933.html]]></link><description><![CDATA[principle of &quot;Pursuing precision and superiority, unifying ideas and deeds&quot;, the company ceaselessly explores and innovates to satisfy customer requirements. The reliable quality and excellent after-]]></description><pubDate><![CDATA[20241231]]></pubDate></item>
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<title><![CDATA[Bebur BT6308 Ozone Analyzer for Drink Water Wastewater Industrial Process Water]]></title><link><![CDATA[https://bebur.en.ec21.com/Bebur-BT6308-Ozone-Analyzer-for--12032929_12032934.html]]></link><description><![CDATA[Product characteristics
▪ Adopts the principle of membrane amperometric sensor
▪ Stable performance and accurate measurement
▪ No reagents and buffers required
▪ Not affected by water cleaner]]></description><pubDate><![CDATA[20241224]]></pubDate></item>
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<title><![CDATA[Smoke Alarm Production Test Tunnel]]></title><link><![CDATA[https://mimayijingaile0.en.ec21.com/Smoke-Alarm-Production-Test-Tunnel--11987076_11987127.html]]></link><description><![CDATA[Equipment
Function ： 
The smoke alarm production test tunnel
was designed for batch test or calibration of sensitivity test of Smoke alarms
or detectors. The basic work principle is compliance to E]]></description><pubDate><![CDATA[20241019]]></pubDate></item>
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<title><![CDATA[Cuvettes&amp;Cuvettes(Glass)&amp;Cuvettes (Quartz)]]></title><link><![CDATA[https://biogene123.en.ec21.com/Cuvettes-Cuvettes-Glass-Cuvettes--11963552_11963584.html]]></link><description><![CDATA[principle of selecting the cupola washing liquid is that the decontamination effect is good, does not damage the cupola, and does not affect the measurement.
The chromic acid lotion commonly used in ]]></description><pubDate><![CDATA[20240705]]></pubDate></item>
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<title><![CDATA[Maintenance Free Real-time Rebar Special Measuring Instrument GDC-L350-JX]]></title><link><![CDATA[https://measurementon.en.ec21.com/Maintenance-Free-Real-time-Rebar--11962128_11962131.html]]></link><description><![CDATA[principle: laser scanning method;
Measurement method: rotary measurement;
Measurement
frequency: 1600;
Rotation speed: ≥30 rpm;
Installation method: fixed or mobile
The entire set of equipment come]]></description><pubDate><![CDATA[20240703]]></pubDate></item>
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<title><![CDATA[RLK607 Contact Infrared Radiometer]]></title><link><![CDATA[https://gatherstar.en.ec21.com/RLK607-Contact-Infrared-Radiometer--11943208_11943310.html]]></link><description><![CDATA[Principle 
Receive infrared radiation from material surface
Measure band 
2～30μm
Measuring range 
100μW/cm*cm～100mW/cm*cm (automatic range switching)
Display resolution 
±1.0μW
Surface temper]]></description><pubDate><![CDATA[20240530]]></pubDate></item>
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<title><![CDATA[poland Zetkama Front Valve Fig.201 201a015c00]]></title><link><![CDATA[https://baisheng326.en.ec21.com/poland-Zetkama-Front-Valve-Fig.201--11922748_11926574.html]]></link><description><![CDATA[principle of
integrity and trustworthiness, and strives to win the trust of customers with
credibility. Main business scope: ZETKAMA valves (agent) from Poland, SIEMENS
positioners and analyzers from]]></description><pubDate><![CDATA[20240418]]></pubDate></item>
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<title><![CDATA[Piston Type Circulating Real Gas Flow Standard Device]]></title><link><![CDATA[https://tnmacalibration.en.ec21.com/Piston-Type-Circulating-Real-Gas--11926262_11926269.html]]></link><description><![CDATA[principle of conservation of mass, which uses standard gas to compare air to explore thermal and ultrasonic gas. Represents a new method of value error testing. Research on air calibration and actual]]></description><pubDate><![CDATA[20240417]]></pubDate></item>
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<title><![CDATA[Coefficient of Friction Tester ASTM D1894 Plastic Friction Coefficient Tester Paper Friction Testing]]></title><link><![CDATA[https://celtec.en.ec21.com/Coefficient-of-Friction-Tester-ASTM--9267526_9296178.html]]></link><description><![CDATA[product, the fastest running speed of packaging line can be realized.
Coefficient of Friction Tester Principle
The two samples are placed together. A long strip sample is fixed on the flat surface an]]></description><pubDate><![CDATA[20240325]]></pubDate></item>
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<title><![CDATA[Automatic Image Measuring Device]]></title><link><![CDATA[https://qiantongyiqi.en.ec21.com/Automatic-Image-Measuring-Device--11683816_11853605.html]]></link><description><![CDATA[Product DescriptionImager characteristics:
Using optical principle, non-contact test measurement;
Automatic Image Measuring Device is applicable to all fields for the purpose of two coordinate measur]]></description><pubDate><![CDATA[20231012]]></pubDate></item>
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<title><![CDATA[SYAL-H Rapid Concrete Alkali Tester]]></title><link><![CDATA[https://samyontech.en.ec21.com/SYAL-H-Rapid-Concrete-Alkali--9452118_9452224.html]]></link><description><![CDATA[principle: 
SYAL-H rapid concrete alkali tester adopts ion selective electrode method (ISE method) rapidly to test the alkali content of the water-soluble matter, such as concrete, gravel, and additi]]></description><pubDate><![CDATA[20161117]]></pubDate></item>
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<title><![CDATA[Lamp Start, Run-up Time and Flicker Test System]]></title><link><![CDATA[https://lisungroup1.en.ec21.com/Lamp-Start-Run-up--9657760_11802787.html]]></link><description><![CDATA[Principle in IEC TR 61547-1:2020
Programmable AC Power Signal Output when do Flicker Immunity Pst LM(I) test in IEC TR 61547-1:2020
LISUN LSRF-3 Lamp Start, Run-up Time and Flicker Test System – Af]]></description><pubDate><![CDATA[20230907]]></pubDate></item>
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<title><![CDATA[ETG12N1 Eddy Current Digital Paint Thickness Gauge]]></title><link><![CDATA[https://mikrometry.en.ec21.com/ETG12N1-Eddy-Current-Digital-Paint--11395794_11403080.html]]></link><description><![CDATA[principle and should be used for detecting the insulating coating&apos;s thickness such as paint/anodizing/ceramics on the aluminum/copper/brass substrate.
Feature of ETG12N Eddy Current Digital Paint Thi]]></description><pubDate><![CDATA[20210621]]></pubDate></item>
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<title><![CDATA[KRD13 High Energy Shock Test System]]></title><link><![CDATA[https://cmetechnology.en.ec21.com/KRD13-High-Energy-Shock-Test--11706077_11837073.html]]></link><description><![CDATA[principle of expansion, by adjusting the internal pressure; make it in a short stroke to release high-impact energy. This novel designed high-energy shock test system is easy to operate and used to t]]></description><pubDate><![CDATA[20230823]]></pubDate></item>
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<title><![CDATA[Transformer Variable Ratio of Entire Inspection Test]]></title><link><![CDATA[https://nanaoelec.en.ec21.com/Transformer-Variable-Ratio-of-Entire--10586983_10714599.html]]></link><description><![CDATA[principle of structure 
Instrument A, B, C, respectively, for three-phase input, junction ratio of the primary side of the tester, a, b, c for the three-phase output, connected to the secondary side ]]></description><pubDate><![CDATA[20180827]]></pubDate></item>
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<title><![CDATA[LM-79 Moving Detector Type C Goniophotometer]]></title><link><![CDATA[https://15317383997.en.ec21.com/LM-79-Moving-Detector-Type--11812738_11812739.html]]></link><description><![CDATA[principles are according to IESNA and CIE. The LSG-6000 completely meet the LM-80, LM-79, LM-75, GB, EN and CIE121-1996 standards.• Special collimation device with cross laser line help you install]]></description><pubDate><![CDATA[20231024]]></pubDate></item>
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<title><![CDATA[Water Boiling Test for Laminated Glass]]></title><link><![CDATA[https://yuanchenwujin68.en.ec21.com/Water-Boiling-Test-for-Laminated--10707899_11281064.html]]></link><description><![CDATA[Principle: 
11) 
Specimens are immerse in hot water and boiling water for specified period of time and
inspect bubbles and others defects
Apparatus: 
12) 
The
apparatus include two water baths, each ]]></description><pubDate><![CDATA[20230719]]></pubDate></item>
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<title><![CDATA[Sight Glass Type Level Gauge]]></title><link><![CDATA[https://aohonggaugeglass.en.ec21.com/Sight-Glass-Type-Level-Gauge--11850290_11850306.html]]></link><description><![CDATA[PrincipleThe working principle of the Glass Plate Level Gauge is simple yet effective. It operates based on the fact that liquid inside a container seeks its own level. The gauge comprises a transpar]]></description><pubDate><![CDATA[20231004]]></pubDate></item>
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<title><![CDATA[V-Sorb 4800P Surface Area and Porosimtery Analyzer]]></title><link><![CDATA[https://goldapp.en.ec21.com/V-Sorb-4800P-Surface-Area--7277224_7277115.html]]></link><description><![CDATA[principle. Multi pioneered techs heighten accuracy and consistence of results, enhance measurement stability, all these lead to a leading level among world technology. It designed from the user persp]]></description><pubDate><![CDATA[20240118]]></pubDate></item>
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<title><![CDATA[Burst Tester]]></title><link><![CDATA[https://pnshar.en.ec21.com/Burst-Tester--6815878_6805020.html]]></link><description><![CDATA[principle of modern mechanical design concept and design criterion of human-machine engineering. PN-BSM600 Bursting Strength Tester belongs to electromechanical product which is with novel design, co]]></description><pubDate><![CDATA[20120619]]></pubDate></item>
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<title><![CDATA[Quick Thermal Conductivity Meter QTM-700/QTM-710]]></title><link><![CDATA[https://kyotokem.en.ec21.com/Quick-Thermal-Conductivity-Meter-QTM--8755030_8755121.html]]></link><description><![CDATA[principle of Hot Wire Method. Measurements of thermal conductivity of firebricks or heat insulation materials at high and low temperature are possible.Vessel for powderVessel for powderThe measuremen]]></description><pubDate><![CDATA[20190329]]></pubDate></item>
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<title><![CDATA[LM-79 Moving Detector Goniophotometer (Mirror Type C)]]></title><link><![CDATA[https://lisungroup7.en.ec21.com/LM-79-Moving-Detector-Goniophotometer--11882688_11882689.html]]></link><description><![CDATA[principles are according to IESNA and CIE. The LSG-6000 completely meet the LM-80, LM-79, LM-75, GB, EN and CIE121-1996 standards.• Special collimation device with cross laser line help you install]]></description><pubDate><![CDATA[20240102]]></pubDate></item>
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<title><![CDATA[Low Price Reliable Office Chair Rotary Life Tester]]></title><link><![CDATA[https://lituotest.en.ec21.com/Low-Price-Reliable-Office-Chair--11365007_11372558.html]]></link><description><![CDATA[principle 
1. Motor driven test platform rotation; 
2. The cylinder output pressure is applied to the sample; 
3. Output digital signal of touch screen; 
4.PLC controls the rotation Angle and rotatio]]></description><pubDate><![CDATA[20210424]]></pubDate></item>
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<title><![CDATA[YFT-D300 Pressure Relief Valve Test Bench for Safety Valve Pressure Calibration and Sealing Test]]></title><link><![CDATA[https://king3834656.en.ec21.com/YFT-D300-Pressure-Relief-Valve--11745449_11747554.html]]></link><description><![CDATA[principle and structure The YFT-D safety valve performance test bench integrates with machine, electricity and liquid. It uses gas as the test medium, and is pressurized by liquid-gas linkage. It is ]]></description><pubDate><![CDATA[20230330]]></pubDate></item>
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<title><![CDATA[IEC61180-1 Impulse Withstand Voltage Generator with 1.2/50us Waveform]]></title><link><![CDATA[https://pegogroup.en.ec21.com/IEC61180-1-Impulse-Withstand-Voltage--11421920_11425210.html]]></link><description><![CDATA[Working power: 220V±10% AC, 50/60Hz
10) Dimension: 470mm*260mm*500mm (W*H*D)
11) Weight: 35KG 
4. Principle and waveform
1) 1.2/50ms surge waveform (generator section) equivalent circuit
]]></description><pubDate><![CDATA[20210805]]></pubDate></item>
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<title><![CDATA[Dryzone Dry Cabinets]]></title><link><![CDATA[https://dryzone.en.ec21.com/Dryzone-Dry-Cabinets--11721597_11721599.html]]></link><description><![CDATA[PRINCIPLE
Dessicant Wonderful Dry Cabinet Manual Dehumidification Theory
The humidity storage cabinet will absorb moisture through the imported material (molecular sieve) physically, after saturation]]></description><pubDate><![CDATA[20230206]]></pubDate></item>

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