温湿度

52 Vaisala Product Catalog 2005 Ref. B210435en rev. A P.O. Box 26, FIN-00421 Helsinki, FINLAND Tel: +358 9 894 91 Fax: +358 9 8949 2485 Email: industrialsales@vaisala.com www.vaisala.com HMM210 Series Humidity Modules for Environmental Chambers The Vaisala HUMICAP® Humidity and Temperature Module Series HMM210 are designed for OEM type applications needing humidity or dewpoint measurement in demanding environments, e.g. in environmental chambers growth chambers and incubators. Demanding applications The HMM210 modules are optimized for harsh environments with both high humidities and a wide temperature range. The humidity measurement is fully temperature compensated. In addition, the modules remain accurate and reliable under extreme conditions where a combination of high humidity and rapidly changing temperature can result in condensation on the sensor head. The modules are highly versatile and flexible. They provide either relative humidity and temperature or dewpoint measurement with various configurations. All modules have microprocessor based electronics and are equipped with analog or digital outputs. Unique warmed probe The warmed probe and composite sensor, available on the dewpoint probe configuration, is warmed to always remain a few degrees higher than ambient. Advantages of this patented technique include: • No condensation problems on the sensor, as the temperature of the probe always remains higher than the ambient. • Fast response time, especially in rapidly changing temperatures. • Improved stability and accuracy in high humidities. Vaisala HUMICAP® Sensor and chemical purge option The HMM210 modules use Vaisala HUMICAP® Sensor, which has high accuracy, excellent long-term stability Features/Benefits • Three probe configurations • Relative humidity (RH) plus temperature (T) probe. • Dewpoint probe features Vaisala’s unique Composite Sensor, which remains heated a few degrees above ambient to prevent dew formation (condensation) on the sensor. • Dewpoint probe described above, together with a temperature probe for obtaining relative humidity and temperature outputs. • Three moduleconfigurations • Different probe and cable lengths • Chemical purge option maintains high measurement performance in demanding chemical conditions. • Eexcellent EMC charasteristics. • NIST traceable (certificate included) Vaisala HUMICAP® Humidity and Temperature Module Series HMM210 provide fast real-time measurement in a wide temperature range. The modules are especially suitable for demanding OEM applications, e.g. environmental chambers and incubators. and neglible hysteresis. The sensor is insensitive to dust and to most chemicals. In conditions of extraordinary high levels of chemicals and cleaning agents, chemical purge is available as an option. With chemical purge, contaminants are evaporated from the sensor and performance is returned to normal. HM_2005_GLOBAL2.PMD 7.12.2004, 9:2352 53Vaisala Product Catalog 2005 Ref. B210435en rev. A HUMIDITY DEWPOINT HMM210 Relative Humidity Measurement range 0...100 %RH Achievable accuracy when calibrated against high quality humidity standards ±2 %RH (0...100 %RH) Accuracy against salt solutions (ASTM E104-85) ±2 %RH (0...90 %RH) ±3 %RH (90...100 %RH) Response time (90% at +20 °C/+68 °F) in still air (with sintered filter) 15 s Typical temperature dependence of electronics 0.02 %RH/°C (0.02 %RH/°F) Humidity sensor HUMICAP®180 Temperature Measurement range -70...+180 °C (-94...+356 °F) Typical accuracy of electronics at +20 °C ±0.1 °C (±0.18 °F) Typical temperature dependence of electronics 0.0025°C/°C (0.0025 °F/°F) Temperature sensor in RH+T probe: HMM211 and HMM213 Pt 100 RTD IEC 751 1/3 Class B HMM212 Pt 1000 RTD IEC 751 1/3 Class B Additional temperature probe Pt 100 RTD IEC 751 1/4 Class B Outputs Two analog outputs selectable HMM211 0...1 V, 0...5 V, 0...10V 0...20 mA HMM212 4...20mA (loop powered) Digital output HMM 213 RS232 General Operating temperature range Probe -70...+180 °C (-94...+356 °F) Electronics -5...+55 °C (+23...+131 °F) Storage temperature range (Electronics) -40...+70 °C (-40...+158 °F) Sensor protection (standard) stainless steel sintered filter Connections screw terminals for 0.5...1.5 mm2 wires Complies with EMC standard EN61326-1:1997 + Am1:1998 + Am2:2001; Generic Environment. Power Supply Operating voltage 10...35 VDC In modules with analog outputs the supply range depends to a certain extent on the selected output range. Current consumption without sensor head warming or re-gaining option HMM211 & HMM213 12 mA at 35 VDC Configuration Options Compatible with modules: ProbesProbesProbesProbesProbes HMM 211 HMM 212 HMM 213 RH+T yes yes yes Dewpoint (heated yes yes composite sensor) Temperature yes yes Cable lengthsCable lengthsCable lengthsCable lengthsCable lengths RH+T and Dewpoint probes 65, 150 and 300 cm Temperature probe 150 and 300 cm Chemical PurgeChemical PurgeChemical PurgeChemical PurgeChemical Purge Automatically takes place at power-up Dimensions Dimensions in mm (inches). HUMICAP® is a registered trademark of Vaisala. Specifications subject to change without prior notice. ©Vaisala Oyj Technical Data HM_2005_GLOBAL2.PMD 7.12.2004, 9:2353