Hygro and hygrothermo transducers (capacitive) for HVAC monitoring

Transcription

1 Data Sheet Page 1/6 Hygro and hygrothermo transducers (capacitive) for HVAC monitoring for measuring relative humidity and temperature for HVAC applications as indoor, wall and duct versions special miniature rod version for OEM applications with current or voltage outputs These humidity transducers have been especially developed for HVAC applications and are characterized by their outstanding long-term stability, high measuring accuracy, excellent high-humidity response and good chemical resistance. Attractively designed cases as wall or duct models for indoor use, and as miniature rod models, can optimally handle almost any air-conditioning task. Transducers for humidity, as well as combined instruments for humidity and temperature with current or voltage outputs are available. Applications include the complete air conditioning and ventilation sector in domestic and office buildings, as well as in storage areas and greenhouses. For the especially high requirements of indoor swimming pools and stables, transducers in version A have proved particularly successful, in addition to achieving excellent measurement results in metereology. Furthermore, the special rod model is available for integrating humidity measurement into existing systems where space is tight, thus making it particularly suitable for OEM applications. Technical data Humidity sensor Humidity range Humidity working ranges Humidity accuracy at 20 C capacitive, condensation permitted 0 100% rh 10 90% rh: indoor version 20 90% rh: wall and duct version (version B); rod version 0 100% rh: wall and duct version (version A) ± 3% rh: indoor version with voltage output ± 3% rh: indoor version with current output; wall and duct version (version B) within humidity range 40 60% rh ± 5% rh: indoor version with current output; wall and duct version (version B) in remaining damp area ± 3% rh: rod version at 54% rh ± 5% rh: rod version in remaining damp area ± 2% rh: wall and duct version (version A) in damp area 0 90% rh ± 3% rh: wall and duct version (version A) in remaining damp area Temperature error at 45% rh typically -0.05% rh / C Temperature sensor platinum-chip temperature sensor Pt1000 to EN , tolerance class A Temperature ranges 0 to +50 C: indoor version; wall and duct version (version B) -20 to +80 C: wall and duct version (version A) -40 to +60 C: rod version Temperature accuracy at 20 C ± 0.3 C: indoor version: voltage output; wall and duct version (version A) ± 0.5 C: indoor version: current output; wall and duct version (version B); rod version Output signals 4 20mA, 0 1V, 0 5V, 0 10V (instrument version according to order code)

2 Data Sheet Page 2/6 Supply 15 35V DC; 24V AC ± 20%: instruments with voltage output 20 28V DC: instruments with current output V DC: only for rod version Electromagnetic compatibility to EN and EN Case ABS plastic for indoor version PC plastic with wall, duct and rod version Protection IP20: indoor version IP40: wall and duct version (version B) IP65: wall and duct version (version A); rod version Load resistance R L 500 Ohm max. for current output Current 20mA max., 5mA for rod version Ambient temperature - 5 to +50 C: indoor, wall and duct version (version B) -20 to +50 C (sensor head +80 C): wall and duct version (version A) -20 to +60 C: rod version Storage temperature -30 to +60 C Weight approx. 100g for indoor version approx. 150g for wall version approx. 250g for duct version approx. 50g for rod version Accessories Dust filter Membrane filter (standard) for low-level contamination in the HVAC area (indoor application) Sintered bronze filter for mechanical loads and very dusty atmospheres Sintered stainless steel filter extremely effective with mechanical and thermal loads, as well as with corrosive media Metal mesh filter for high humidity, risk of condensation or rapidly changing humidity cycles Humidity sensors Temperature sensor Humidity sensor checks Type: HC 101 for rod version nominal capacity 200 ± 20pF operating temperature -40 to +120 C Type: HC 200 for wall and duct versions (version B) nominal capacity 200 ± 20pF operating temperature -40 to +110 C Type: HC 1000 for indoor, wall and duct versions (version A) nominal capacity 500 ± 50pF operating temperature -40 to +120 C platinum-chip temperature sensor made in thin-film technology to EN , tolerance class A nominal value 1000 Ohm at 0 C dimensions in mm (W x L x H) 2.0 x 5.0 x 1.3 temperature range -50 to +400 C Humidity sensor checks can be carried out, to check the accuracy of humidity transducers. The checking procedure is described in detail in DIN , IEC Publication 260, ISO/R The underlying principle is that a certain climate forms in the air above an aqueous, saturated salt solution. Sensor check sets with values of 33%, 55% and 76% rh are available from stock.

3 Data Sheet Page 3/6 Dimensions Indoor version Type /10 Wall version Type /20 Type /21 Duct version Type /30 Type /31 Rod version Type /40 Measurements in mm.

4 Data Sheet Page 4/6 Connection diagram Indoor version Type /10 Wall/duct version Type /20, Type /21, Type /30, Type /31 Rod version Type /40

5 Data Sheet Page 5/6 Order details: Hygro and hygrothermo transducers (capacitive) for HVAC monitoring (1) Basic version /10 Hygro/hygrothermo transducer, indoor version /20 Hygro/hygrothermo transducer, wall version (version A) /21 Hygro/hygrothermo transducer, wall version (version B) /30 Hygro/hygrothermo transducer, duct version (version A) /31 Hygro/hygrothermo transducer, duct version (version B) /40 Hygro/hygrothermo transducer, rod version (2) Hygro/hygrothermo transducer X X X X X X 1 Humidity X X X X X X 2 Humidity and temperature 1 (3) Ranges X % rh; 0 to +50 C X X % rh; 0 to +50 C X X % rh; -20 to +80 C X % rh; -40 to +60 C (4) Output signals X X X X X mA X X X V X X V X X X X X V (1) (2) (3) (4) Order code Order example / Please take note of the humidity working ranges under Technical Data! Stock versions: (1) (2) (3) (4) Sales No / / / / / / / / / / / / / / / / / / / / / / / /

6 Data Sheet Page 6/6 Order details: Accessories (1) Basic version /90 Filter /91 Humidity sensors, capacitive /92 Temperature sensor /93 Humidity sensor check sets (2) Filter X 801 Membrane filter (standard) X 802 Sintered bronze filter X 803 Sintered stainless steel filter X 804 Metal mesh filter (2) Humidity sensors X 806 HC 1000 X 807 HC 200 X 808 HC 101 (2) Temperature sensor X 005 Pt 1000 (2) Humidity sensor checks X % rh magnesium chloride X % rh magnesium nitrate X % rh sodium chloride (1) (2) Order code - Order example / Stock versions (1) (2) Sales No / / / / / / / / / / / / / / / / / / / / / /