[. . . ] Honeywell ROOM HUMIDITY SENSOR/ COMBINED ROOM HUMIDITY/TEMPERATURE SENSOR PRODUCT DATA H7012A, B FEATURES · Pt 1000, BALCO 500 or 20k NTC temperature sensing element · Wide sensing range · Capacitance type sensing element for relative humidity · Plug-in design SPECIFICATIONS General: Power supply Current consumption Ambient operating limits Ambient storage limits Dimensions 24Vac, +20. . . -30%; 50/60Hz, 34Vdc, +20. . . -30% 20mA @ 24V 0. . . 50°C (+32. . . 122°F), 5. . . 95%rh non condensing -25. . . 70°C (-13. . . 158°F), 5. . . 95%rh non condensing see Fig. [. . . ] to DIN IEC 751 Class B BALCO 500 ±0. 4K @ 23. 3°C NTC ±0. 2K at 25°C Sensitivity Pt 1000 3. 85/K BALCO 500 2/K Characteristic see EN0C-0603 Response time @ air velocity 0. 02. . . 0. 07m/s 0. 5 Pt 1000 =50s 0. 5 Balco 500 =140s 0. 5 NTC =134s Relative Humidity: Humidity sensing range 5. . . 95%rh Output signal 0. . . 1V / 0. . . 10V = 0. . . 100%rh Output Impedance 1V range 183 10V range 274 Outputs short circuit protected Sensitivity 10mV / %rh or 100mV / %rh Accuracy 5. . . 10%rh ±10% 10. . . 30%rh ± 5% 30. . . 70%rh ± 3% 70. . . 90%rh ± 5% 90. . . 95%rh ±10% Response time 0. 5=20s Overview Following sensors can be applied for the following control systems: Control systems Pt 1000 Excel Classic Excel Plus High Performance Excel Plus Excel EMC Excel 500/600 (XF521) Excel 500/600 (XF526) Excel 20 & 50 Excel 80B & 100B Excel IRC Multicontroller R7451A1030 MicroniK 100 MicroniK 100 "NEW" R7420B1036/R7420F1045 MicroniK 200 X X X X X X X X X X X X X X X X X X X X X X X Temperature 20k NTC BALCO 500 X X X X Humidity 0. . . 1Vdc X X X X 0. . . 10Vdc X X X X X X X X EN0C-0604 0796R2-MA 2 H7012A, B ROOM HUMIDITY / TEMPERATURE SENSOR DIMENSIONS 80 (3. 15) 20 (0. 79) 11 (0. 43) 1 60 (2. 36) 130 (5. 12) 2 107 (4. 21) Honeywell 2 1 30 (1. 18) 60 (2. 36) 1, 2 34 (1. 34) Dimensions in mm and (inch) 5 mounting holes 4mm (0. 16) dia. 1 Dimensions INSTALLATION Sensor 1 230Vac 24Vac 2 Transformer for sensors and actuators 7 Common Common 5/6 0. . . 1V/ 0. . . 10V Controller rh Input 24Vac 230Vac Transformer for controller Fig. 2 Installation Example 3 EN0C-0610 0398R3-MA H7012A, B ROOM HUMIDITY / TEMPERATURE SENSOR Mounting and Installation Advice: ·= Mount these units at the inside wall of the room to be heated or air conditioned, away from doors, windows and heat sources. ·= Do not mount in niches, book shelves, behind cabinets or curtains or where it could be exposed to solar radiation. ·= Seal the conduit opening to avoid false measurement due to draught from the conduit. Offset due to wire resistance per 10m distance from sensor to controller: Type of wire Pt 1000 0. 5mm (AWG20) 2 1. 0mm (AWG17) 2 1. 5mm (AWG15) 2 NOTE CAUTION Use shielded wiring in areas with high EMI. Keep 15cm (5. 9'') minimum distance between sensor lines and 230Vac power lines. Use two transformers: one for sensors and actuators and one for the controller (see Fig. [. . . ] Printed in Germany EN0C-0610 0398R3-MA Manufacturing location certified to [. . . ]