NOVUS AUTOMATION
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INTRODUCTION
RHT
Climate
Transmitters
Wall Mount (
WM
) and Duct Mount
(
DM
)
models incorporate high-precision, stable sensors for measuring temperature
and relative humidity. Being microprocessed devices, they allow full configuration via USB or RS485 interface via a Modbus RTU command.
NXperience
allows the configuration of all the resources of the device, as well as the diagnosis of the analyzed information.
Apart from the
temperature
and
relative humidity
values, which are read directly from the sensor, the transmitter calculates the value of the
following psychrometric properties
1
:
•
Dew Point Temperature
;
•
Wet Bulb Temperature
;
•
Absolute Humidity
;
•
Frost Point Temperature
;
•
Specific Enthalpy
;
•
Partial Vapor Pressure
;
•
Mixture Ratio
.
Any variable read by the sensor or calculated by the device can be transmitted via one of the two available analog outputs. You are also allowed to
configure the electrical operating level of each output:
•
0-10 V
;
•
4-20 mA
.
Two digital outputs with alarm or control functions can be related to any variable read or calculated by
RHT
Climate
Transmitter
.
The following options are also available:
•
RS485
;
•
Display with Backlight
;
•
Audible signal
.
It is important that you read carefully the manual before using this device and check that the versions of the manual and the device match. The
firmware version number is displayed at the moment the device is powered on.
1
Psychrometry is the study of thermodynamic properties of dry air and water vapor mixtures. Obtaining the psychrometric properties is crucial in the psychrometric
processes of air conditioning, refrigeration, cooling and freezing, air humidification and dehumidification, drying and dehydration of humid devices, as well as in
environmental and meteorological control.
