Armoured explosion-proof thermocouple summary
· protection pipe and the measuring element is a separate type structure, can quickly change the temperature measuring element, don't stop to repair.
· protection tube type and diverse materials, which can meet the high pressure, high temperature and strong corrosion medium temperature measurement needs.
· temperature core and a protective tube at the bottom of the spring is compressed, can reduce the thermal inertia and improves the shockproof performance.
The armoured element, pressure, seismic, stable and reliable work.
· explosion-proof mark: D Ⅱ BT6, D Ⅱ CT6 (excluding acetylene) and IA Ⅱ CT6, suitable for level II, temperature classes for T1~T6, temperature measurement with explosive gas environment.
Technical characteristics and specifications
This series of products in line with national standards GB3836.1, GB3836.2, GB3836.4, according to the relevant provisions of the explosion-proof standards and requirements of the design and manufacture, the performance indicators in line with JB/T8622-1997, JB/T8623-1997, GB/T18404-2001 standards, and by the national explosion-proof electrical product quality supervision and inspection center and the National Instruments explosion-proof safety supervision and inspection station approval, obtain explosion-proof certificate. User note temperature groups must be on-site surface temperature and install the corresponding in the selection of explosion-proof level
Varieties, measuring range and tolerance
Thermal resistance
variety | Division No. | Resistance value | Protection tube material | measuring range | Allowance error | Depth of immersion | |
grade | formula | ||||||
Platinum resistance | Pt100 | 100±0.06 100±0.12 | 1Cr18Ni9Ti | 200~550 | A | ±(0.15+0.2%|t|) | 75,100,150, 200,250,300, 400,500,600, 750,1000 |
B | ±(0.3+0.5%|t|) | ||||||
Copper resistance | Cu50 Cu100 | 50±0.06 100±0.12 | 50~100 | ±(0.3+0.6%|t|)±(0.3+0.6%|t|) | |||
An explosive mixture of classification
variety | Division No. | Protection tube material | measuring range | the material level and the allowed value | Depth of immersion | |
Ⅰ | Ⅱ | |||||
Chromium - nickel silicon | X | 1Cr18Ni9Ti | 40~850 | ±1.5℃ / ±0.4%|t| | ±0.5℃ / ±0.4%|t| | 150, 200 250, 300 400, 500 600, 750 1000,1250 1500,2000 |
Nickel-chromium- Kang Tong | E | Single 40~650 Double-40~550 | ||||
Iron - Kang Tong | J | Single 40~600 Double-40~450 | ||||
Copper - Kang Tong | T | Single 40~400 Double-40~300 | ±0.5℃ / ±0.4%|t| | ±1℃ / ±0.75%|t | ||
