E+E Elektronik HTS201 Room Sensor for Relative Humidity and Temperature

Hazardous location E+E Elektronik HTS201 Room Sensor for Relative Humidity and Temperature delivers precise and reliable measurements of relative humidity (RH) and temperature (T) in residential and commercial building automation. Its patented sensor technology ensures outstanding measurement performance, resilient even in dusty environments. The innovative enclosure prevents false air ingress and minimizes self-heating.

This device provides RH and T data through two analog outputs or via the digital RS485 interface supporting Modbus RTU or BACnet MS/TP protocols. Additionally, it offers dewpoint temperature (Td) data through Modbus RTU and BACnet MS/TP.

Featuring a functional design, the elegant enclosure adheres to regional standards and offers an optional display. Its construction simplifies installation, with a back cover housing push-in spring terminals separately from the electronics in the front cover. This allows easy commissioning by attaching the active part just before use and facilitates swift, tool-free replacement of the active component.

Configuration is streamlined for the digital version via PC, using the free PCS10 Product Configuration Software and an optional configuration adapter.

HTS201 is available in both US and EU formats, with or without a display, catering to different preferences and requirements.

Features:

Measurement Performance:

• High RH/T Accuracy: Ensures precision in measurements.
• Excellent Long-Term Stability: Consistent performance over time.
• State-of-the-Art E+E RH/T Sensing Element: Utilizes advanced technology for accuracy.
• Protected by E+E Proprietary Coating: Shields the sensor for extended lifespan.
• Patented Sensor Technology: Innovative technology for superior performance.

Enclosure and Connection:

• Innovative Design Avoids False Air Ingress: Prevents inaccurate readings.
• Time-Saving Installation and Wiring: Quick and efficient setup.
• Snap-On Without Tools: Easy assembly and maintenance.
• Push-In Spring Terminals: Simplifies connections.
• All Electronics Inside Front Cover: Ensures protection and convenience.
• Smooth Cover Surface: Repels dust and eases cleaning.
• Dust Repellent and Easy Cleaning: Maintains optimal functionality.
• EU and US Format: Available in regional standards.
• UL94HB Approved Enclosure Material: Ensures safety standards compliance.

Outputs:

• Two Analog Outputs: Provides 0-10V and 4-20mA options.
• RS485 Interface with Modbus RTU and BACnet MS/TP: Digital interface for data transmission.
• Large Graphic Display: Offers clear visual data representation.

Inspection Certificate:

• According to DIN EN 10204-3.1: Ensures compliance with inspection standards.
• Available via E+E Certificate Service: Accessible documentation for validation.

Protective Sensor Coating: The proprietary coating extends sensor lifespan, ensuring optimal performance in corrosive environments like offshore applications. It also enhances long-term stability in dusty, dirty, or oily conditions by preventing impedance caused by deposits on the sensor surface.

 

Specifications:

Technical Data
Measurands
Relative Humidity (RH)
Measuring range	0...100 %RH, non-condensing
Accuracy1 incl. hysteresis, non-linearity and repeatability 0...100 %RH	±(2 + 0.003 * mv) %RH	mv = measured value
Temperature dependency of electronics, typ	0.008 % RH / °C (0.004 %RH / °F)
Factory calibration uncertainty2) @ 23 °C (73 °F)
0...90 %RH	±(0.7 + 0.003 * mv) %RH	mv = measured value
>90...100 %RH	±1 %RH
1) Defined against E+E calibration reference at 23 °C (73 °F). With supply voltage 24 V DC, 0.2 m/s (39. 4 ft/min) medium flow and load resistor 250 Ω for version with current output.
2) Defined at with an enhancement factor k=2, corresponding to a confidence level of 95 %.
Temperature (T)
Measuring range	-30...+60 °C (-22...+140 °F)
Accuracy1
0- 10 V, RS485	±0,25 °C (±0.14 °F)
4 - 20 mA (2-wire)	±0,38 °C (±0.21 °F)
Temperature dependency of electronics, typ.	0.006 K/K
Factory calibration uncertainty2) @ 23 °C (73 °F)	±0.1 °C (±0.056 °F)
1) Defined @ 23 °C (73 °F) against E+E calibration reference. With supply voltage 24 V DC, 0.2 m/s (39. 4 ft/min) medium flow and load resistor 250 Ω for version with current output.
2) Defined with an enhancement factor k=2, corresponding to a confidence level of 95 %.
Calculated Physical Quantity
	from	up to	unit
Dew point temperature Td	-30 (-22)	60 (140)	°C (°F)
Outputs
Analogue
T: acc. to ordering guide	0 - 10 V	-1 mA < IL < 1 mA	IL = load current
RH: 0...100 %	4 - 20 mA (2-wire)	RL < (V+ - 10) / 0.02 < 500 Ω	RL = load resistance
Digital
Digital interface	RS485 (HTS201 = 1 unit load)
Protocol	Modbus RTU
Factory settings	Baud rate according to ordering guide, 8 data bits, parity even, 1 stop bit, Modbus address 45
Supported Baud rates	9 600, 19 200 and 38 400
Measured data type	FLOAT32 and INT16
Protocol	BACnet MS/TP
Factory settings	BACnet address 45
Supported Baud rates	9 600, 19 200, 38 400, 57 600, 76 800 and 115 200
1) Ex works: see ordering guide
General
Power supply class III USA & Canada: Class 2 supply necessary, max. voltage 30 V DC
0 - 10 V, RS485	15 - 35 V DC or 24 V AC ±20 %
4 - 20 mA (2-wire)	10 + 0.02 x RL < V+ < 35 V DC (RL < 500 Ω)	RL = load resistance
Current consumption, typ	@ 24 V DC	@ 24 V AC
0 - 10 V	6 mA	14 mArms
4 - 20 mA	Acc. to output current	Acc. to output current
RS485	5 mA	12 mArms
Electrical connection	Push-in spring terminals max. 1.5 mm2 (AWG 16)
Display	1.8" LCD, dot-matrix, 2 lines, visible area 38 x 31 mm (1.5" x 1.2")
Humidity range
Operation	0…100 %RH non-condensing
Storage	0…95 %RH non-condensing
Temperature range, operation and storage
without display	-30...+60 °C (-22...+140 °F)
with display	-20...+60 °C (-4...+140 °F)
Enclosure
Material	PC (Polycarbonate), RAL 9003 (signal white), UL94 HB approved
Protection rating	IP30
Electromagnetic compatibility	EN 61326-1	EN 61326-2-3	Industrial environment
	FCC Part15 Class B	ICES-003 Class B
Shock and vibration	Tested according to EN 60068-2-64 and EN 60068-2-27
Conformity	CE & UKCA
Configuration	PCS10 Product Configuration Software (free download) and optional configuration adapter

E+E Elektronik HTS201 Room Sensor for Relative Humidity and Temperature

Certifications:

• EU Declaration of Conformity
• EU Reach Declaration of Conformity
• UKCA Declaration of Conformity

Resources:

• Datasheet
• PICS Room Sensor
• Quick Guide