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CMa20

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Sensor temperatura/humedad para exteriores

CMa20 es un sensor de temperatura y humedad exterior que utiliza comunicación M-Bus estándar. Tiene una alta precisión y proporciona información sobre los valores instantáneos de los medidores, así como los valores promedio de la última hora y día.

Descripción

Mechanics

Casing material: Polystyrol
Protection class: IP65
Dimensions (w x h x d): 110 x 100 x 52 mm
Mounting: Wall-mount
Weight: 140 g

Electrical connections

Supply voltage: From M-Bus
M-Bus slave port: Screw terminal. Cable 0.25-1.5 mm², 0.5 Nm tightening torque

Electrical characteristics

Nominal Voltage: 21-42 VDC

Environmental specifications

Operating temperature: -40 °C to +55 °C
Operating humidity: 0 to 100 %
Operating altitude: 0-2000 m
Pollution degree: Degree 2
Usage environment: Outdoors
Storage temperature: -40 °C to +85 °C
Measurement range, temperature sensor: -40 °C to +55 °C
Measurement range, humidity sensor: 0 % RH to 100 % RH

Temperature sensor, margin of error

Temperature: 10 °C to 30 °C: ±0.2°C
Temperature: 0 °C to 10 °C: ±0.4°C
Temperature: -10 °C to 0 °C: ±0.5°C
Temperature: below -10 °C or above 30 °C: ±1.5°C

Humidity sensor, margin of error

Humidity: 10 % RH to 90 % RH: ±2% RH
Humidity: below 10 % RH or above 90 % RH: ±4% RH

User interface

LCD diplay: No
Momentary values: Temperature, humidity, status
Historic values: Average value over the last hour and last day

M-Bus

Interfaces: M-Bus slave
M-Bus standard: EN 13757

M-Bus slave interface

M-Bus baud rate, slave port: 300 and 2400 bit/s
Nominal voltage, slave port: 21-42 VDC
Power consumption: 1T/1.5 mA
Addressing modes: Primary, secondary
Default address: 0

Integration

Compatibility: Devices using the M-Bus protocol

Approvals

EMC: EN 61000-6-2, EN 61000-6-3

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