working principle:
The sensor adopts the imported SHT11 chip and the imported sensor module ms5540c. The module includes a temperature sensing element, a humidity sensing element, a piezoelectric resistance pressure sensing element and an ADC interface IC. It has a wide range and strong anti-static ability. They are converted into digital Modbus protocol output through the change of environment parameters (see Appendix 1).
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Measure item |
Range |
Accuracy |
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Atmospheric temperature |
-40-60℃ |
≦±0.3℃(@25℃,typical) |
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Atmospheric humidity |
0-100%RH |
≦±3%RH(@25℃,20%-80%RH,typical) |
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Supply |
DC 12-24V |
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Work current |
DC12V <20ma(485) ;DC12V <45ma(current) |
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Power consumption |
DC12V <0.24W (485) ;DC12V <0.54W (current) |
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Ingress Protection |
IP65 |
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Shell material |
ABS |
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Cable length |
3m(customizable) |
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Farthest lead wire |
Current200m,RS485 100 m,voltage 50m |
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Data Release |
PC,Telephone APP,LED,LCD TV display, etc |
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Features
●Sensitive element with imported integrated
●Standard current and voltage signal output, optional temperature measurement range, single wet product
●Universal, hand-held design, easy to use
●special filter tube, excellent waterproof and dustproof
●Strong resistance to condensation , suitable for long-term operation in high humidity environment
●Fast response time, excellent long-term stability
●The external sensor can effectively reduce the influence of the self heating of the transmission circuit
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