WRNK-191 precision fine armored thermocouple armored thermocouple

WRNK series armored thermocouple can bend, high temperature, fast thermal response time and rugged features, use it as industrial thermocouple assembly as a measure of temperature sensor, usually display instruments, recording instruments and electronic regulator supporting the use, at the same time, can also be fabricated as a thermocouple temperature sensing element, which can directly measure the various production processes range from 0 ℃ ~ 800 ℃ of liquid, vapor and temperature, gas and solid surface. Sheathed thermocouple works by two different components of the conductor ends welded to form a loop, called direct temperature measurement terminal end, the terminal called the reference junction. When the measuring end and the reference junction temperature difference, it will generate heat in the loop current, connected to the display meter, the meter will indicate the temperature value corresponding to the heat generated by the thermocouple EMF. Sheathed thermocouple thermal emf will end with the rise of temperature measuring growth, the size of the thermal emf only and sheathed thermocouple conductor material and temperature difference between the two ends, and the hot electrode length, diameter irrelevant. Sheathed thermocouple structure is composed of a conductor, magnesium oxide insulation and 1Cr18Ni9Ti stainless steel protection tube through the drawn from many, sheathed thermocouple products are mainly from junction boxes, terminals and components of the basic structure sheathed thermocouple, and with composed of various mounting fixtures. Sheathed Thermocouple insulated mounting for housing two. Technical parameters: Temperature range and accuracy category code indexing No. Tube OD mm common temperature ℃ highest temperature ℃ tolerance △ t ℃ tolerance value measurement range nickel-chromium - copper-nickel WREK E ≥ 3 600 700 0 ~? 700 ± 2.5 ℃ or ± 0.75% t of nickel chromium - nickel silicon WRNK K ≥ 3 800 900 0 ~ 900 ± 2.5 ℃ or ± 0.75% t copper -?? copper-nickel WRCK T ≥ 3 350 400 <-200 is not specified - 40 350 ± 0.75% t sheathed thermocouple thermal response time when a step change in temperature occurs, the thermocouple output changes to the equivalent of 50% of the step change, the time required is called thermal response time, with t0. 5 shows a sheathed thermocouple thermal response time of less than the following requirements: thermal response time t0.5S socket shell-type insulation bushing diameter (min) 2.0 0.4 0.5 3.0 0.6 1.2 4.0 0.8 2.5 5.0 1.2 4.0 6.0 2.0 6.0 8.0 4.0 8.0 Insulation resistance when the ambient air temperature is 20 ± 15 ℃, relative humidity less than 80%, the insulation resistance of insulation type armored thermocouple thermocouple wire and the jacket pipe shall meet the following requirements. Tube diameter mm Insulation resistance test voltage VD.C MΩ.m 0.5 ~ 1.5 50 ± 5 ≥1000> 1.5 500 ± 50 ≥1000 type code armor diameter measuring range (℃) the maximum temperature (℃) Tolerance △ t ( ℃) I II K nickel-chromium - nickel silicon WRNK ≥ф3 0-800 950 ± 1.5 ℃ or ± 0.4% t ± 2.5 ℃ or ± 0.75% t E nickel-chromium - copper-nickel WREK 0-600 700 J iron - copper-nickel WRJK 0-500 600 T copper - copper-nickel WRTK -40- + 350 400 ± 1.5 ℃ or ± 0.4% t ± 1 ℃ or ± 0.75% t S platinum and rhodium 10 platinum WRPK ф5-ф8 0-1100 1150 II ± 1.5 ℃ or ± 0.25% t Note: t is the measured temperature value. Specifications Model: WR □ K- □□□□ WR □ K □ temperature components material fixed form □ Junction box type (in the form of the free end) □ □ working end in the form of pairs of N-type thermocouple temperature meter nickel-chromium - nickel silicon E nickel-chromium - copper-nickel C copper - copper-nickel sheathed 1 no fixture type 2 fixed threaded sleeve 3 movable threaded sleeve 4 fixed sleeve flange movable sleeve flange 5 0 3 simple type 2 splashproof waterproof type 8 8 small wiring cartridge lever 9 9 insulated wire with compensation formula (lever) 3) 3 on 4) 4 pairs 5) five pairs of insulated type 2 Pick 6 1 8 pick shell-shell type (lever)) 6 Ordering: 1. indicate the thermocouple type, indexing number, temperature range. 2. The thermocouple protection tube diameter, length, material and so on. 3. fasteners, flanges device must provide relevant dimensions of the company; on the Hayward blue Instrument Co., Ltd. Contact: Zhou Jianhua Tel: 0572-6069899 Mobile: 13867297390 Fax: 0572-6600672 Company Website: WWW.shwol .com E-mail: shwol1@126.com