www.vaisala.com HMI41 Indicator and HMP42/HMP46 Probes ® The Vaisala HUMICAP Humidity Vaisala HUMICAP® Indicator HMI41 fitted with the Vaisala Humidity and Temperature ® HUMICAP Humidity and Temperature Probe HMP42 Probes HMP42 or HMP46 can be used The HMP42 probe can be used for spot for spot checking and field calibration checking humidity and temperature applications. in applications which require an In addition to displaying the humidity extremely thin probe. Typically the and temperature readings, the HMI41 probe is used for monitoring the drying indicator calculates dew point and wet of structures during construction or bulb temperature, absolute humidity after water damage. It is ideal to be and mixing ratio. used when measuring in any tight The indicator has an easy-to-read two places, in ducts or chambers or, for line liquid crystal display. The display example, under a linoleum floor. ® The Vaisala HUMICAP Humidity units (metric or non-metric) are easily The probe diameter is only 4 mm, Indicator HMI41 equipped with the selected. allowing access into very small, tight, ® Vaisala HUMICAP Humidity and These features, plus fast response and hard-to-reach spaces. Temperature Probe HMP42 – an time, high measurement accuracy and extremely thin probe allowing access excellent stability, as well as the unique Vaisala HUMICAP® into very small, tight, hard-to-reach spaces. properties of the probe chosen – either Humidity and Temperature the HMP42 or the HMP46 – make Probe HMP46 the HMI41 indicator and HMP42/46 Typical applications for the HMP46 combination an ideal choice for the are plant maintenance, installation most demanding applications. and inspection of air conditioning systems, production and storage areas Features/Benefits and production processes. The HMP46 operates in full humidity range of RH measurement range ▪ 0 ... 100 %RH. The temperature range 0 ... 100 %RH is from -40 to +100 °C (-40 ... +212 °F). Temperature measurement ▪ For short periods of time, the probe range -40 ... +100 °C can withstand temperatures up to (-40 ... +212 °F), with the +180 °C (+356 °F). HMP46 only for short periods up to +180 °C (+356 °F) The HMP46 probe is solid and rugged. Its stainless steel probe is Calculates dew point, wet bulb ▪ temperature, absolute humidity made to withstand rough handling in and mixing ratio mechanically demanding applications. The probe’s long shaft can also reach Versatile and easy-to-use ▪ otherwise unreachable places. Incorporates Vaisala HUMICAP® ▪ Sensor High Performance Sensor Excellent stability ▪ The HMP42/46 probes incorporate ® ® The Vaisala HUMICAP Humidity Vaisala HUMICAP Sensor. This sensor Data collection with serial line ▪ Indicator HMI41 equipped with the has high accuracy, excellent long-term ® Vaisala HUMICAP Humidity and NIST traceable (certificate ▪ stability and negligible hysteresis. Temperature Probe HMP46 – a rugged included) In addition, the sensor is insensitive stainless steel probe for mechanically Optional carrying case and to dust, particulate dirt and most ▪ demanding and high temperature calibration cable chemicals. applications. Technical Data HMI41 Indicator HMP46 Probe Calculated variables dew point temperature, absolute humidity, Humidity wet bulb temperature, mixing ratio Measurement range 0 ... 100 %RH, non-condensing Resolution 0.1 %RH; 0.1 °C/°F Accuracy (incl. non-linearity, hysteresis and repeatibility) Power supply 4 batteries, type AA (LR 6) at +20 °C (+68 °F) Battery operation time 0 … 90 %RH ±1 %RH (alkaline batteries) 72 h continuous use 90 … 100 %RH ±2 %RH Auto-off function Factory calibration uncertainty (+20 °C / +68 °F) Operating temperature -20 ... +60 °C (-4 ... +140 °F) 0 … 15 % RH ±1 %RH Storage temperature -40 ... +70 °C (-40 ... +158 °F) 15 … 78 %RH ±1.5 %RH Display two line LCD Temperature Dependence Housing material ABS plastic error %RH Housing classification IP53 (with connectors blocked) 2 Weight (incl. batteries) 300 g 1.5 Maximum measurement error of indicator at +20 °C 1 for temporary 0.5 humidity ±0.1 %RH use only 0 temperature ±0.1 °C (±0.18 °F) -0.5 -1 HMP42 Probe -1.5 -2 Humidity -40 40 120 -20 0 20 60 80 100 140 160 180 Measurement range 0 ... 100 %RH T/°C Accuracy (incl. non-linearity, hysteresis and repeatability) Typical long-term stability better than 1 %RH per year at +20 °C (+68 °F) Response time (90%) 0 … 90 %RH ±2 %RH at +20 °C in still air w/sintered filter 15 s 90 … 100 %RH ±3 %RH temperature Factory calibration uncertainty (+20 °C / +68 °F) Continuous measurement -40 ... +100 °C (-40 ... +212 °F) 0 … 15 %RH ±1 %RH Short-term measurement -40 ... +180 °C (-40 ... +356 °F) 15 … 78 %RH ±1.5 %RH Temperature accuracy at +20 °C (+68 °F) ±0.2 °C (±0.36 °F) Temperature dependence of electronics ±0.05 %RH/°C Temperature accuracy over the measurement range Typical long-term stability better than 1 %RH per year Response time (90%) at +20 °C in still air 30 s °C temperature 0.6 Measurement range HMP42 -40 ... +100 °C (-40 ... +212 °F) 0.4 Temperature accuracy over measurement range 0.2 ∆°C 0 0.6 -0.2 0.4 -0.4 0.2 -0.6 0 -40 -20 0 20 40 60 80 100 120 140 160 180 -0.2 T/°C -0.4 Temperature sensor Pt100 RTD Class F0.1 IEC 60751 -0.6 -40 -20 0 20 40 60 80 100 T/°C Temperature sensor Pt100 RTD Class F0.3 IEC 60751 ® HUMICAP is a registered trademark of Vaisala. Technical Data General for Probes Dimensions Cable length 1500 mm; extended spiral cable Dimensions in mm. Operating temperature range HMI41 HMP42 HMP46 for electronics -20 ... +60 °C (-4 ... +140 °F) Housing material electronics housing ABS plastic probe stainless steel Housing classification electronics IP65 (NEMA 4) HMP42 sensor protection steel grid 19867HM ø18.5 membrane, tube set (5 pcs) 19858HM ø4 ø12 HMP46 sensor protection MODE HOLD ENTER ON/OFF sintered filter 0195 MIN/MAX ø18.5 ø21 ø21 13 optional membrane filter, (max +80 °C / +176 °F) 10159HM plastic grid, (max +80 °C / +176 °F) 6221 Weight 75 HMP42 200 g 80 HMP46 450 g Electromagnetic compatibility Complies with EMC standard EN61326-1, Portable Equipment. 38 38 Accessories ® Transmitter calibration cables HUMICAP is a registered trademark of Vaisala. HMT330, HMT120/130 25917ZZ HMT360 25916ZZ HMM210 19164ZZ HMD/W60/70 19116ZZ Carrying case for HMI41 & HMP42/46 plastic 210614 aluminum MI70CASE2 Serial communication cable 19446ZZ HMP42 Calibration adapter HM37067 Rubber sleeve set 19809HM ref. B211141eN-B ©Vaisala 2012 please contact us at this material is subject to copyright protection, with all copyrights retained by Vaisala and its individual partners. all www.vaisala.com/requestinfo rights reserved. any logos and/or product names are trademarks of Vaisala or its individual partners. the reproduction, transfer, distribution or storage of information contained in this brochure in any form without the prior written consent of Vaisala is strictly Scan the code for prohibited. all specifications — technical included — are subject www.vaisala.com to change without notice. more information 37 125 200 88 30 318 30 106 13 13 235 440 106 320 30