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MIW-DSMHM-2R-EN-000 - 23 / 11 / 2023 4 - 90
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DSMHM-2R MULTIFUNCTIONAL DUCT TRANSMITTER
WITH CORROSION PROTECTION
PRODUCT DESCRIPTION
e DSMHM-2R are multifunctional duct transmitters which measure temperature,
relative humidity and CO2 concentration. ey are treated with anti-corrosion
and ammonia resistant coating that makes them suitable for applications in the
agriculture and horticulture industry or other harsh environments. Based on the
temperature and relative humidity measurements, the dew point is calculated. ey
are Power over Modbus supplied and all parameters are accessible via Modbus RTU.
ARTICLE CODES
Code Supply Connection
DSMHM-2R Power over Modbus, 24 VDC RJ45
INTENDED AREA OF USE
■ Monitoring temperature, relative humidity and CO2 level in air ducts
■ Suitable for harsh environments. Application field: greenhouses, livestock breeding
farms, mushroom growing houses, etc.
TECHNICAL DATA
■Selectable temperature range: -30—70 °C
■Selectable relative humidity range: 0—100 %
■Selectable CO2 range: 0—10.000 ppm
■ Accuracy: ±0,4 °C (range -30—70 °C); ±3 % rH (range 0—100% rH); ±30 ppm CO2
(range 400—5.000 ppm)
■Maximum power consumption: 1,08 W
■Nominal power consumption in normal operation: 0,81 W
■Imax: 45 mA
■Replaceable CO2 sensor element
■Minimum airflow velocity required: 1 m/s
■Enclosure and probe material:
►ASA, grey (RAL9002)
■Protection standard: enclosure: IP54, probe: IP20
■Typical field of use:
►temperature: -30—70 °C
►rel. humidity: 0—100 % rH, (non-condensing)
►CO2: 400—5.000 ppm
■Storage temperature: -10—60 °C
STANDARDS
■EMC Directive 2014/30/EC:
► EN 61326-1:2013 Electrical equipment for measurement, control and laboratory
use - EMC requirements - Part 1: General requirements
► EN 61326-2-3:2013 Electrical equipment for measurement, control and
laboratory use - EMC requirements - Part 2-3: Particular requirements - Test
configuration, operational conditions and performance criteria for transducers
with integrated or remote signal conditioning
■High protective conformal coating
►MIL-I-46058C qualified
►IPC-CC-830
■RoHs Directive 2011/65/EC and EPA 33/50 compliant