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RHT Climate Relative Humidity and Temperature Transmitters

Quick Overview

The RHT Climate transmitter has an integrated temperature and relative humidity sensor on the wall mounted housing, or at the end of a duct mounted probe. The Stainless Steel probe is available in 150, 250 and 400mm length probes. All RHT Climate transmitters are available with 2 analogue outputs configurable by the NXperience software with options for 4-20mA or 0-10V outputs. Unit with the backlit LCD display can also be configured using the buttons on the unit. A Modbus option with additional psychrometric data is available for networking units via an RS485 connection and can also be collected via a USB connection for configuration. The RHT Climate is more precise, versatile and provides more psychrometric information than the other RHT transmitters.

View Options

Details

RHT Climate Transmitters Wall Mount (WM) and Duct Mount (DM) models incorporate high-precision, stable sensors for measuring temperature and relative humidity. Because they are microprocessed device, they can be fully configured via a USB or RS485 interface, using command Modbus RTU. NXperience allows for configuring all transmitter outputs and ranges.

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 Vapour 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 as a 0-10V or 4-20mA output. The user is also allowed to configure the electrical operating level of each output. 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 Modbus RTU
Display with Backlight
Audible signal

Specifications

Sensor Measurement Range:	Temperature:	-40 to +100°C (DM models)
		-40 to +60°C (WM models)
	Relative Humidity:	0 to 100%RH (Non-condensing)
	Dew Point:	-90 to +100°C
Measurement Resolution:	Temperature:	0.1°C, 14 bits (65535 increments)
	Relative Humidity:	0.1%, 12 bits (4095 increments)
Response Time:	Temperature:	Up to 5 seconds @ 25°C
	Relative Humidity:	Up to 4 seconds @ 25°C
Measurement Accuracy:	Temperature:	±0.2°C (0 to 60°C)
	Relative Humidity:	±1.8%RH @ 23°C (0 to 90%RH)
Sampling Interval:	3 seconds
Custom Calibration:	Up to 5 temperature points and 5 points for relative humidity
Analogue Outputs:	Two 0-10V or 4-20mA outputs configurable by software or keys
Power Supply:	By Connectors:	12 to 30vDC (Consumption 70mA@24vDC)
	By USB:	4.75 to 5.25vDC
Display:	Backlit LCD with three variables of 4½ digits
Keys:	3 keys with tactile feedback for navigation and adjustment of parameters
Alarms:	Two digital outputs and one embedded buzzer
Operating Temperature:	Electronics: -40 to +60°C, Duct Sensor: -40 to +100°C
Connections:	Internal terminals through cable glands
Dimensions:	100.3 x 80.0 x 45.1mm
Enclosure:	IP65, ABS and Polycarbonate
Sensor Protection Rating:	IP30, IP40 with PTFE filter
Communication Interface:	USB type Micro-B 2.0 and RS485 (both in Modbus RTU)
Programming:	NXperience software for Windows through USB

Wiring Diagram

RHT Climate Wiring Diagram

Availability: Stock Item

Components / Downloads

For further information, technical advice, or a quotation please call or email us. If you are not sure which product you need one of our technical sales advisors will be happy to discuss your application. We also accept company purchase orders by fax or post. Credit card orders can also be placed over the phone for any product.

REF	DESCRIPTION	DOWNLOADS	PRICE	ORDER ITEM

RHT Climate Temp & RH Wall Mounted Transmitters
8804000000	RHT Climate-WM Wall Mounted Temperature and Relative Humidity Transmitter. Two analogue outputs, configurable as 4-20mA or 0-10V for any sensor or calculated psychromatic readings. Two configurable alarm outputs. Temperature Range -40 to +60°C, Relative Humidity Range 0 to 100%RH. Power Supply 12 to 32vDC. USB port for configuration. IP65 ABS Polycarbonate enclosure, Dimensions: 100 x 80 x 45mm, IP30 Polyamide Sensor Filter.	Datasheet Size: (246.37 KB)	£126.79	or call us for a quote
8804000001	RHT Climate-WM Wall Mounted Temperature and Relative Humidity Transmitter. Two analogue outputs, configurable as 4-20mA or 0-10V for any sensor or calculated psychromatic readings. Two configurable alarm outputs and RS485 Modbus Comms. Temperature Range -40 to +60°C, Relative Humidity Range 0 to 100%RH. Power Supply 12 to 32vDC. USB port for configuration. IP65 ABS Polycarbonate enclosure, Dimensions: 100 x 80 x 45mm, IP30 Polyamide Sensor Filter.		£132.90	or call us for a quote
8804000101	RHT Climate-WM-485-LCD Wall Mounted Temperature and Relative Humidity Transmitter with LCD display. Two analogue outputs, configurable as 4-20mA or 0-10V for any sensor or calculated psychromatic readings. Two configurable alarm outputs, buzzer and RS485 Modbus Comms. Temperature Range -40 to +60°C, Relative Humidity Range 0 to 100%RH. Power Supply 12 to 32vDC. USB port for configuration. IP65 ABS Polycarbonate enclosure, Dimensions: 100 x 80 x 45mm, IP30 Polyamide Sensor Filter.		£143.75	or call us for a quote

RHT Climate Temp & RH Transmitters with 150mm Insertion Probe
8804111000	RHT Climate-DM-150S Duct Mounted Temperature and Relative Humidity Transmitter with 150mm Stainless Steel Probe. Two analogue outputs, configurable as 4-20mA or 0-10V for any sensor or calculated psychromatic readings. Two configurable alarm outputs. Temperature Range -40 to +100°C, Relative Humidity Range 0 to 100%RH. Power Supply 12 to 32vDC. USB port for configuration. IP65 ABS Polycarbonate enclosure, Dimensions: 100 x 80 x 45mm, IP30 Polyamide Sensor Filter.		£136.27	or call us for a quote
8804111001	RHT Climate-DM-150S-485 Duct Mounted Temperature and Relative Humidity Transmitter with 150mm Stainless Steel Probe. Two analogue outputs, configurable as 4-20mA or 0-10V for any sensor or calculated psychromatic readings. Two configurable alarm outputs and RS485 Modbus Comms. Temperature Range -40 to +100°C, Relative Humidity Range 0 to 100%RH. Power Supply 12 to 32vDC. USB port for configuration. IP65 ABS Polycarbonate enclosure, Dimensions: 100 x 80 x 45mm, IP30 Polyamide Sensor Filter.		£142.38	or call us for a quote
8804111101	RHT Climate-DM-150S-485-LCD Duct Mounted Temperature and Relative Humidity Transmitter with 150mm Stainless Steel Probe and LCD Display. Two analogue outputs, configurable as 4-20mA or 0-10V for any sensor or calculated psychromatic readings. Two configurable alarm outputs, buzzer and RS485 Modbus Comms. Temperature Range -40 to +100°C, Relative Humidity Range 0 to 100%RH. Power Supply 12 to 32vDC. USB port for configuration. IP65 ABS Polycarbonate enclosure, Dimensions: 100 x 80 x 45mm, IP30 Polyamide Sensor Filter.		£145.78	or call us for a quote

RHT Climate Temp & RH Transmitters with 250mm Insertion Probe
8804121000	RHT Climate-DM-250S Duct Mounted Temperature and Relative Humidity Transmitter with 250mm Stainless Steel Probe. Two analogue outputs, configurable as 4-20mA or 0-10V for any sensor or calculated psychromatic readings. Two configurable alarm outputs. Temperature Range -40 to +100°C, Relative Humidity Range 0 to 100%RH. Power Supply 12 to 32vDC. USB port for configuration. IP65 ABS Polycarbonate enclosure, Dimensions: 100 x 80 x 45mm, IP30 Polyamide Sensor Filter.		£139.68	or call us for a quote
8804121001	RHT Climate-DM-250S-485 Duct Mounted Temperature and Relative Humidity Transmitter with 250mm Stainless Steel Probe. Two analogue outputs, configurable as 4-20mA or 0-10V for any sensor or calculated psychromatic readings. Two configurable alarm outputs and RS485 Modbus Comms. Temperature Range -40 to +100°C, Relative Humidity Range 0 to 100%RH. Power Supply 12 to 32vDC. USB port for configuration. IP65 ABS Polycarbonate enclosure, Dimensions: 100 x 80 x 45mm, IP30 Polyamide Sensor Filter.		£145.09	or call us for a quote
8804121101	RHT Climate-DM-250S-485-LCD Duct Mounted Temperature and Relative Humidity Transmitter with 250mm Stainless Steel Probe and LCD Display. Two analogue outputs, configurable as 4-20mA or 0-10V for any sensor or calculated psychromatic readings. Two configurable alarm outputs, buzzer and RS485 Modbus Comms. Temperature Range -40 to +100°C, Relative Humidity Range 0 to 100%RH. Power Supply 12 to 32vDC. USB port for configuration. IP65 ABS Polycarbonate enclosure, Dimensions: 100 x 80 x 45mm, IP30 Polyamide Sensor Filter.		£148.47	or call us for a quote

RHT Climate Temp & RH Transmitters with 400mm Insertion Probe
8804131000	RHT Climate-DM-400S Duct Mounted Temperature and Relative Humidity Transmitter with 400mm Stainless Steel Probe. Two analogue outputs, configurable as 4-20mA or 0-10V for any sensor or calculated psychromatic readings. Two configurable alarm outputs. Temperature Range -40 to +100°C, Relative Humidity Range 0 to 100%RH. Power Supply 12 to 32vDC. USB port for configuration. IP65 ABS Polycarbonate enclosure, Dimensions: 100 x 80 x 45mm, IP30 Polyamide Sensor Filter.		£142.38	or call us for a quote
8804131001	RHT Climate-DM-400S-485 Duct Mounted Temperature and Relative Humidity Transmitter with 400mm Stainless Steel Probe. Two analogue outputs, configurable as 4-20mA or 0-10V for any sensor or calculated psychromatic readings. Two configurable alarm outputs and RS485 Modbus Comms. Temperature Range -40 to +100°C, Relative Humidity Range 0 to 100%RH. Power Supply 12 to 32vDC. USB port for configuration. IP65 ABS Polycarbonate enclosure, Dimensions: 100 x 80 x 45mm, IP30 Polyamide Sensor Filter.		£147.80	or call us for a quote
8804131101	RHT Climate-DM-400S-485-LCD Duct Mounted Temperature and Relative Humidity Transmitter with 400mm Stainless Steel Probe with LCD Display. Two analogue outputs, configurable as 4-20mA or 0-10V for any sensor or calculated psychromatic readings. Two configurable alarm outputs, buzzer and RS485 Modbus Comms. Temperature Range -40 to +100°C, Relative Humidity Range 0 to 100%RH. Power Supply 12 to 32vDC. USB port for configuration. IP65 ABS Polycarbonate enclosure, Dimensions: 100 x 80 x 45mm, IP30 Polyamide Sensor Filter.		£151.19	or call us for a quote

RHT Climate Replacement Sensor Module
8803900010	RHT Climate Replacement Temperature & Relative Humidity Sensor Module		£39.32	or call us for a quote

RHT Climate Replacement Protective Filters
8803900150	Polyamide protective tip for the RHT Climate transmitters with side openings that allow the flow from environment to the sensor element. This tip is supplied as standard on RHT Climate units. IP30 Rated.		£4.60	or call us for a quote
8803900130	High Density Polyethylene (PTFE) protective tip for the RHT Climate Transmitters. Produced in porous material, protects the sensor element from dust and other solid particles. Due to the reduced contact with the environment, the response time will be higher than when using Polyamide tips. IP40 Rated.		£23.06	or call us for a quote