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https://www.hvac.co.th กว่า 25 ปี แห่งความเชี่ยวชาญในระบบควบคุม HVAC — บจก.เอชแวค สแควร์ ตัวแทนจำหน่ายอุปกรณ์ BELIMO,REGIN, SIEMENS และ DWYER ที่วิศวกรเลือกใช้ Wed, 03 Dec 2025 04:39:45 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 https://www.hvac.co.th/wp-content/uploads/2017/07/ms-icon-310x310-120x120.png https://www.hvac.co.th 32 32 https://www.hvac.co.th/product/siemens-modulating-refrigerant-valves-with-magnetic-actuator-pn-32-m3fk-lx-hermetically-sealed-for-condenser-control/ Wed, 27 Dec 2017 15:20:33 +0000 https://www.hvac.co.th/?post_type=product&p=43445 Siemens Modulating refrigerant valves with magnetic actuator, PN 32 M3FK..LX.. hermetically sealed, for condenser control

• Mixing or straight-through valves with magnetic actuator for modulating capacity control of condensers. ? Short positioning time (approx. 1 s) ? High resolution ? High rangeability ? Hermetically sealed ? Versatile electrical interface ? Friction-free ? Port 1 -> 3 closed when de-energized ? Robust and maintenance-free

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]]> https://www.hvac.co.th/product/siemens-qfm41-duct-sensor-for-rel-humiditytemperature/ Tue, 05 Dec 2017 14:31:26 +0000 https://www.hvac.co.th/?post_type=product&p=43008 Siemens QFM41.. Duct sensors for rel. humidity / temperature for demanding requirements, with calibration certificate

• Operating voltage AC 24 V / DC 13.5...35 V • Signal output DC 0...10 V / 4…20 mA for relative humidity and temperature • Very high measuring accuracy throughout the entire measuring range • Capacitive humidity measurement • Recalibration service • Test function for loop test • Range of use −40…+70 °C / 0…100 % r. h.]]> QFM41.._Datasheet_en

]]> https://www.hvac.co.th/product/siemens-qfm31-d-duct-sensors-for-rel-humidity-temperature-for-demanding-requirements/ Tue, 05 Dec 2017 14:21:52 +0000 https://www.hvac.co.th/?post_type=product&p=43005 Siemens QFM31..D Duct sensors for rel. humidity / temperature for demanding requirements

• • Operating voltage AC 24 V / DC 13.5...35 V • Signal output DC 0...10 V / 4…20 mA for relative humidity and temperature • Very high measuring accuracy across the entire measuring range • Function test • Capacitive humidity measurement • Range of use −40…+70 °C / 0…100 % r. h. with LCD display −25…+70 °C / 0…100 % r.h.]]> QFM31..D_Datasheet_en

]]> https://www.hvac.co.th/product/siemens-qfm31-duct-sensors-for-rel-humidity-temperature-for-demanding-requirements/ Tue, 05 Dec 2017 14:11:37 +0000 https://www.hvac.co.th/?post_type=product&p=43002 Siemens QFM31..Duct sensors for rel. humidity / temperature for demanding requirements

• Operating voltage AC 24 V / DC 13.5...35 V • Signal output DC 0...10 V / 4…20 mA for relative humidity and temperature • Very high measuring accuracy across the entire measuring range • Function test • Capacitive humidity measurement • Range of use −40…+70 °C / 0…100 % r. h. with LCD display −25…+70 °C / 0…100 % r.h.]]> QFM31.._Datasheet_en

]]> https://www.hvac.co.th/product/siemens-qfm21-duct-sensor-for-rel-humidity-temperature/ Tue, 05 Dec 2017 13:54:12 +0000 https://www.hvac.co.th/?post_type=product&p=42999 Siemens QFM21.. Duct sensor for rel. humidity / temperature

Device type QFM21.. Designation Duct sensors for humidity and temperature Product range SymaroTM]]> QFM21.._Environmental_Declaration_en

]]> https://www.hvac.co.th/product/siemensroom-sensors-qfa41-relative-humidity-temperature-calibration-certificates/ Wed, 02 Aug 2017 02:32:54 +0000 https://www.hvac.co.th/?post_type=product&p=40048 Use The QFA41… sensor is used in ventilation and air conditioning plants requiring: • Very high accuracy and reliability for measuring relative humidity and temperature • Regular recalibration and readjustment of the sensors Examples: • Storage and production facilities in the paper, textiles, pharmaceutical, chemical, electronics industries, etc. • Laboratories • Hospitals • Computer centers • Greenhouses]]> 20095_Data-Sheet-for-Product_Room_sensor-QFA41.._en

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