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Đo mức bằng điện dung (capacitance level trans)
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Mô tả sản phẩm
Mô tả sản phẩm
FEATURES :
- Short description: Intelligent radio-frequency (130 kHz) level switch for liquids, powdered or granular solids
- Operating principle: The electronics evaluates continuously the voltage level proportional to the capacitance difference between the two probes and the housing.
- Setting of the switching point(s): Selectable sensitivity from 4 ranges, fine tuning with potentiometer within the selected range.
- Material of wetted parts: Stainless stel, PP
- Housing material: Alu cast
- Ex version: Available (Dust Ex)
APPLICATION CONSIDERATIONS :
- For solids with εr ≥ 1,5 relative dielectric constant and liquids
- Special applications: For adhering, sticky materials
- Suggested applications: Limit switch, high or low fail-safe switching
- Measurable mediums: Sludge, highly contaminated liquids, foams, grain, animal feed, sand, soot, cement, granules etc.
TECHNICAL DATA :
- Power supply: 20-255 V AC/DC
- Ambient temperature: -30°C ... +60°C
- Medium temperature: -30°C ... +235°C
- Process pressure: max. 25 bar
- Process connection: ¾”, 1”, 1 ½” BSP/NPT
- Output: Relay (SPDT) or electronic switch (SPST)
- Protection: IP67
- Ex marking: ATEX II 1/2 D Ex ta IIIC T85°C…T220°C Da/Db
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