RHT-Climate-DM - Duct Mount Temperature and Humidity Transmitter

• Duct Mount
• Transmit Temperature and Humidity
• Two Independently Configurable Analog Outputs (0-10V or 4-20mA)
• Calculates Seven Other Psychrometric Properties
• Configure via USB or Keypad(model dependent)
  
• Optional RS485 Modbus RTU Communications
• Optional Wide Backlight Display
• Alarm Output and Built-In Buzzer

The RHT-Climate is a high precision duct mounted temperature and humidity transmitter. The RHT-Climate provides highly accurate and stable measurements over a wide operating range. Being a microprocessed device, it allows full configuration via a USB or with the optional keyboard or RS485 interface via Modbus RTU commands.

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: 

• Dew Point Temperature
• Wet Bulb Temperature
• Absolute Humidity
• Frost Point Temperature
• Specific Enthalpy
• Partial Vapor Pressure
• Mixture Ratio

The RHT Climate has two analog outputs which may be independently  programmed for 0-10 V and 4-20 mA. Any variable read by the sensor or calculated by the device can be transmitted via one of the two available analog outputs.

The RHT Climate also has two digital alarm outputs and an embedded buzzer for sound alarm which can be  triggered by any variable read or calculated.

The RHT Climate is available with an optional wide backlit LCD display. It also available with optional RS485 communications which used Modbus RTU protocol.

A free downloadable Windows software program, NXperience, is available which provides configuration of all the resources of the device, as well as the diagnosis of the analyzed information.

PART NUMBERS	DESCRIPTION
RHT-CLIMATE-DM-150	RHT Climate Duct Mount Temperature and Humidity Transmitter; 150 mm probe
RHT-CLIMATE-DM-150-RS485	RHT Climate Duct Mount Temperature and Humidity Transmitter; 150 mm probe; RS485
RHT-CLIMATE-DM-150-RS485-LCD	RHT Climate Duct Mount Temperature and Humidity Transmitter; 150 mm probe; RS485; LCD Display
RHT-CLIMATE-DM-250	RHT Climate Duct Mount Temperature and Humidity Transmitter; 250 mm probe
RHT-CLIMATE-DM-250-RS485	RHT Climate Duct Mount Temperature and Humidity Transmitter; 250 mm probe; RS485
RHT-CLIMATE-DM-250-RS485-LCD	RHT Climate Duct Mount Temperature and Humidity Transmitter; 250 mm probe; RS485; LCD Display
RHT-CLIMATE-DM-400	RHT Climate Duct Mount Temperature and Humidity Transmitter; 400 mm probe
RHT-CLIMATE-DM-400-RS485	RHT Climate Duct Mount Temperature and Humidity Transmitter; 400 mm probe; RS485
RHT-CLIMATE-DM-400-RS485-LCD	RHT Climate Duct Mount Temperature and Humidity Transmitter; 400 mm probe; RS485; LCD Display

SPECIFICATIONS

Sensor Measurement Range:
Temperature: -40,0 °C to 100.0 °C
Relative humidity: 0.0 to 100.0 % RH (non-condensing)
Dew point: -90,0 °C a 100,0 °C

Measurement Resolution:
Temperature: 0.1 °C, 14 bits (65535 levels)
Relative humidity: 0.1 %, 12 bits (4095 levels)

Response Time:
Temperature: up to 5 sec @ 25 °C with slow moving air (1 m/s)
Relative humidity: up to 4 sec @ 25 °C with slow moving air (1 m/s)

Measurement Accuracy:
Temperature: ± 0.2 K (0 °C to 60 °C)
Relative humidity: ± 1.8 % RH to 23 °C (0 % to 90 % RH)
Samplings interval:3 seconds

Analog outputs: two 0-10 V or 4-20 mA outputs configurable by software or keyboard
Display: wide backlit LCD with three variables of 4 ½ digits
Keys: 3 keys with tactile feedback for navigation and adjustment of parameters
Alarms: two digital outputs and one embedded buzzer
Operating temperature: -40 ° C to 60 ° C
Connections: internal terminals through cable glands
Dimensions: 100.3 x 80.0 x 45.1 mm
Enclosure: ABS+PC

Protection Rating:
Temperature: ±0.2 °C (0 °C to +60 °C)
±1.8 %RH @ +23 °C (0 %RH to 90 %RH)

Power Supply:
By USB: 4.75 Vdc to 5.25 Vdc
By connectors: 12 Vdc to 30 Vdc; maximum consumption 70mA +/- 10% @ 24Vdc

Protection Rating:
Sensor probe: IP30
Enclosure: IP65

Communication interfaces: USB type Micro-B 2.0 and optional RS485 (both in Modbus RTU)
Programming: NXperience software for Windows through USB
Buzzer Volume:  Approximately 70 dB at a distance of 1 m