WRR-120 platinum and rhodium thermocouple (Shanghai Automation Instrumentation Factory) ------------------------------------ -------------------------------------------------- -------------------------------------------------- -----? [Introduction] WRR-120 platinum and rhodium thermocouple industrial thermocouple assembly as a measure of the temperature sensor, usually display instruments, recording instruments and supporting the use of electronic regulator. It can directly measure the various production processes range from 0 ℃ ~ 1800 ℃ of liquid, vapor, gas and solid surface temperature of. According to state regulations, I plant from 1987 began production in line with IEC international standard indexing number of platinum and rhodium 30 - 6 platinum and rhodium, platinum and rhodium 10 - platinum, nickel chromium - nickel silicon, nickel, chromium - copper-nickel, copper - copper-nickel iron - copper and nickel type thermocouple, shall comply with the JB / T9238-1999 standard. ?? [Main Specifications] ◆ temperature measurement range and tolerance thermocouple type code indexing Temperature Range ℃ tolerance Δt ℃ platinum and rhodium 30 platinum and rhodium 6WRRB0 ~ 1800 ± 1.5 ℃ or ± 0.0025 ㄧ ㄧ t platinum and rhodium 10 - Platinum WRPS0 ~ 1600 ± 1.5 ℃ or ± 0.0025 ㄧ ㄧ t of nickel chromium - nickel silicon WRNK0 ~ 1300 ± 2.5 ℃ or ± 0.0075 ㄧ ㄧ t nickel-chromium - copper-nickel WREE0 ~ 800 ± 2.5 ℃ or ± 0.0075 ㄧ ㄧ t Note: "t" measured temperature of the temperature sensing element. ?? [Works] thermocouple works: two different components of the conductor ends welded to form a loop, called direct temperature measurement end end end terminals 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. Thermal emf thermocouple measuring junction temperature will rise as growth in the size of the thermal emf only and thermocouple conductor material and temperature difference between the two ends, and the hot electrode length, diameter irrelevant. Thermocouple assembly consists of the junction box, protection tubes, bushings, blocks, heat the electrode components of the basic structure, and with each mounting device. ?? [ORDERING] ??? [Model Specifications] ◆ unified design-type thermocouple 1) no fixture type (ceramic protection tube) Thermocouples Type Model No indexing Temperature Range ℃ specification thermal response time T0. 5? S diameter mm Protection tube material single platinum and rhodium 30 - platinum and rhodium 6WRR-120B0 ~ 1600 ￠ 16 corundum <150WRR-121 ￠ 25 <360 double vessel platinum and rhodium 30 platinum and rhodium 6WRR2-120 ￠ 16 <150WRR2-121 ￠ 25 <360 single platinum and rhodium 10 platinum WRP-120S0 ~ 1300 ￠ 16 high aluminum <150WRP-121 ￠ 25 <360 double vessel platinum and rhodium 10 - platinum WRP2-120 ￠ 16 <150WRP2-121 ￠ 25 <360 Single Support nickel-chromium - nickel silicon WRN-122K0 ~ 1100 ￠ 16 high aluminum <240WRN-1230 ~ 1200 ￠ 20 double vessel nickel-chromium - nickel silicon WRN2-1230 ~ 1100 single platinum and rhodium 30 platinum and rhodium 6WRR-130B0 ~ 1600 ￠ 16 corundum <150 <360 <150 <360WRR-131 ￠ 25 double-vessel platinum and rhodium 30 - platinum and rhodium 6WRR2-130 ￠ 16WRR2-131 ￠ 25 Single platinum and rhodium 10 platinum WRP-130S0 ~ 1300 ￠ 16 high aluminum < 150 <360 <150 <360WRP-131 ￠ 25 double-vessel platinum and rhodium 10 - platinum WRP2-130 ￠ 16WRP2-131 ￠ 25 Single nickel-chromium - nickel silicon WRN-133K0 ~ 1200 ￠ 20 high aluminum <240 pairs of branches nickel-chromium - nickel silicon WRN2-1330 ~ 1100 Note: 1) structural features: non-intrusive part of carbon steel 20 # 2) for the double diameter ￠ 25mm ceramic casing. ? ◆ Protection tube diameter and length specification sheet ￠ 16 (single tube) ￠ 20 ￠ 25 (double tube) total length L is set deep set dark l l total length L total length L is set deep l30015040025055040035020045030065050040025055040090075045030065050011501000550400900750165015006505001150100021502000900750165015001150100021502000? [Company] inspection process? A wiring box from the mold, large-tonnage die-casting machine casting, no holes, no glitches, smooth wall, paint technology more beautiful appearance B 304 Material diameter seamless stainless steel pipe, standard thickness 2mm, weld smooth, no welding marks, surface treatment bright C temperature sensing element using Heraeus brand, 100% incoming inspection D mounting screw thread 304 Material Specification implementation of national standards, CNC lathe, standard chamfering, burr-E transmitter using SMT technology, the use of the United States imported components anti-jamming design, four inspection procedures ensure high accuracy output, interference and strong product inspection process: component testing - visual inspection --30 kg pressure test - the factory inspection detailed product description, please visit the website: www. shzy3.com (automation needs of users is our pursuit)