Mô tả
Bảng thông số kỹ thuật của cảm biến độ ẩm nhiệt độ và khí CO2 KFTM-CO2 – Modbus
| Voltage supply | 24 V AC/ DC (± 10 %) |
| Power consumption | < 4.4 W/ 24 V DC typical; < 6.4 VA/ 24 V AC typical; peak current 200 mA |
| Data points | temperature, relative humidity, air quality (VOC), carbon dioxide (CO2), atmospheric pressure |
| Sensors | digital humidity sensor with integrated temperature sensor, low hysteresis, high long-term stability |
| Measuring range, humidity | 0…100 % r. H. |
| Operating range, humidity | 0…95 % r. H. (without dew formation) |
| Deviation of humidity | typical ± 2 % r. H. (20…80 % r. H. ); at + 25 °C, otherwise ± 3 % |
| Measuring range, temperature | –35…+80 °C |
| Operating range, temperature | –10…+60 °C |
| Temperature deviation | typically ± 0.2 K at +25 °C |
| Measuring range, CO2 | 0…5000 ppm |
| Sensor, CO2 | optical NDIR sensor (non-dispersive infra-red technology) including atmospheric pressure compensation (up to 1100 mbar) with automatic and manual calibration |
| Measuring accuracy, CO2 | typically ± 30 ppm ± 3 % of measured value |
| Temperature dependence, CO2 | ± 5 ppm/ °C or ± 0.5 % of measured value/ °C (whichever is higher) |
| Pressure dependence | ± 0,13 %/ mm Hg |
| Gas exchange | by diffusion |
| Response time | < 2 minutes |
| Sensor protection | plastic sinter filter, Ø 16 mm, L = 35 mm, exchangeable (optional metal sinter filter, Ø 16 mm, L = 32 mm) |
| Ambient temperature | –10…+60 °C |
| Bus protocol | Modbus (RTU mode), address range 0…247 selectable |
| Signal filtering | 4 s / 32 s |
| Process connection | by mounting flange, plastic (included in the scope of delivery) |
| Protective tube | PLEUROFORMTM, material polyamide (PA6), with torsion protection, Ø 20 mm, vmax = 30 m/s (air) without filter: NL = 202.5 mm / with plastic filter: NL = 235 mm (optional with metal filter: NL = 227 mm) |
| Electrical connection | 0.14 – 1.5 mm2, via push-in terminal |
| Housing | plastic, UV-stabilised, material polyamide, 30 % glass-globe reinforced, with quick-locking screws (slotted/ Phillips head – combination), colour traffic white (similar to RAL 9016) |
| Housing dimensions | 126 x 90 x 50 mm (Tyr 2) |
| Cable gland | 2x M 16 x 1.5; including strain relief, exchangeable |
| Long-term stability | < 2 % in 15 years |
| Protection class | III (according to EN 60 730) |
| Protection type | IP 65 (according to EN 60 529) housing only! (PLEUROFORM IP 30) |
| Standards | CE-Konformitat, elektromagnetische Vertraglichkeit nach EN 61326, nach EMV-Richtlinie 2014/ 30/ EU |
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