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| | | ©Mineral-insulated-RTD (Pt100) | | |
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| | | Pt100classAandB Single or duplex assembly Bendible, compact Rugged Fast response Fixed cable or plug | | |
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| | | PROFILE Mineral-insulated resistance thermometers (M.I.) are equipped in general with Platinum-measuring resistors Pt100 Q to DIN IEC 751. The inner (Cu)-conductors are embedded in a closely compacted, inert mineral powder (MgO), the measuring resistor will be connected to the inner conductors, is also embedded and is surrounded by the metal sheath to form a hermetically sealed assembly. The sheath functions as a useful protective cover in many situations. They are applied in locations where fast response, reduced space and or vibration resistance is a need. They can be furnished with a fixed cable or with a special plug which allows rapid fitting or exchange. | | |
| | | TECHNICAL DATA | | APPLICATION HINTS The listed temperatures are valid for clean air only. At higher temperatures especially with cyclic charges the thickness of the sheath decreases due to tindering. Agressive parts of the measuring medium attack the sheath material. Especially with sensors with small diameter life time decreases tremendeously at higher operating temperatures. Application examples | | |
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| | | Meets DIN IEC 751 Sheath - Stainless steel SS 321 (1.4541) SENSOR Pt100 class A Pt100 class B - single and duplex - 2, 3 and 4-wire connection Tolerances | | |
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| | | | | | | | | | Chemical engineering | Plast and fibre | | | | Petrochemistry | Pulp and paper | | | | Food and beverage | Boiler | | | | Thermprocess | | | | | REACTION TIME | | | | | | | | | |
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| | | | | | | | | | | | Class | in ° C | Range | Connection | | | | A | 0,15+0,002 *(t) | -200...650 °C | 3 and 4 wire | | | | B | 0,3 +0,005 *(t) | -200...850 °C | 2,3 and 4-wire | | | | | | | | | | | |
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| | | Reaction time in [s] (approximately) water at 0,2 m/s air at 2,0 m/s | | |
| | | Temperature at the cable junction With standard cable LiYY+70 °C otherwise 200 °C Operating temperatures As standard are M.I. RTD's available for the following temperature ranges. - -50°C up to +400 °C - -50°C up to +600 °C | | |
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| | | | | | | | | | | | | 0 [mm] | t0,5 | t0,9 | t0,5 | t0,9 | | | | 3 | 1,5 | 6 | 26 | 81 | | | | 6 | 6 | 15 | 55 | 170 | | | | | | | | | | | | |
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| | | Special remarks M.I. resistance thermometer can be bent at a radius 5 times of sheath diameter. • It must be considered, that at the tip of the probe bending must be avoided for a length of 60 mm. | | |
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