Model RHA Humidity Sensor
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- 3D PDF Download
- RHA Download the CAD data (DXF / Parasolid / STEP / IGES)
Application
- Humidity control in food processing facilities
- Humidity control in air-conditioning equipment
- Humidity control in pharmaceutical factories
- Humidity control in clean rooms
- Humidity control for musical instruments
- Humidity control in plant factories
- Humidity control in greenhouses/fermentation chambers
- Humidity control in museums, sample chambers, warehouses
Features
- A small-sized humidity sensor.
- Outputs a linear voltage from 0.5 V to 4 V DC corresponding to the humidity level.
- Easy to maintain connector type is used.
- M3 screws facilitate easy mounting.
International Standards
- Our products do not have overseas safety regulations such as CE mark, UL standard, EN standard etc.
- Products is compliant to the RoHS directive.
* Please consult about "change of specification" and "request of specification" of the product.
Rating/Performance/Characteristics Graph
Rating/Performance
| Model | RHA | RHA-5V |
|---|---|---|
| Detection Sensor | Humidity | |
| Temperature Range | -10 to 60 ºC (Without dew condensation or icing) | |
| Humidity Range | 0 to 85 % RH (Without dew condensation) | |
| Measurable Humidity Range | 0 to 100 % RH (Short-time measurement without dew condensation only) | |
| Standard Humidity Accuracy | ±5 % in the RH 25 ºC (20 to 80 % RH) | |
| Humidity Response Time | 60 sec（τ 63％） | |
| Power Supply Voltage | 12 V to 24 V DC | 5 V DC |
| Operating Voltage Range | 10 V to 26.4 V DC | 4.5 V to 5.5 V DC |
| Current Consumption | 1 mA DC or less | 0.5 mA or less |
| Resistance Output Impedance | 1 kΩ | |
| Load Resistance | 100 kΩ or more | |
| Storage Temperature Range | -10 to 60 ºC (Without dew condensation or icing) | |
| Storage Humidity Range | 80 % RH or less (Without dew condensation) | |
| Dielectric Strength | 500 V AC for 1 minute (Between the live part and case) | |
| Insulation Resistance | 50 MΩ or more at 500 V DC megger (Between the live part and case) | |
| Vibration Resistance | 10 to 55 Hz, 1.5 mm double amplitude in X, Y and Z directions for 2 hours each (at power off) | |
| Shock Resistance | 200 m/s² (Approx. 20 G) in X, Y and Z directions 3 times each (at power off) | |
| Protection | IP50 | |
| Case Material | Polyarylate | |
| Connector | Connector: S3B-EH(3-pin)(from J.S.T. Mfg. Co., Ltd.) ［Connections］Housing: EHR-3, Contact: SEH-001T-P0.6 (from J.S.T. Mfg. Co., Ltd.) |
|
| Weight | Approx. 5 g | |
| Options | Connector harness : CNH-S3B03S26-300 (Sold Separately) | |
Characteristics Graph (Typical Example)
Outline Dimensions/Output Circuit
Outline Dimensions
Output Circuit
*1 : The 5V DC type does not have a built-in backflow prevention diode. Be sure to check the polarity of the power supply and connect it correctly.
Usage Precautions
Usage Precautions
- When the sensor is not used, to maintain the precision, it is recommended to store it in the delivered package (in the closed anti-static bag) without opening under the following conditions :
Temperature range: 10 to 50 ºC
Humidity range: 20 to 60 % RH
Do not use antistatic polyethylene bags (light blue, pink or rose pink color). - The relative humidity value greatly depends on the humidity condition.
When measuring the surrounding temperature/humidity, be sure to confirm there is no heated part on the installation surface. - Use M3 pan head screws for mounting.
The tightening torque for the case should be 0.5 N·m or less. - This sensor has output impedance of 1kΩ to avoid damage due to external noise.
The impedance attenuates according to the input impedance of the signal input device.
Use a device with as high input impedance as possible - at least 100kΩ. - The 5 V DC type does not have a built-in backflow prevention diode.
Be sure to check the polarity of the power supply and connect it correctly. - This sensor cannot be used in dew condensation conditions.
If this is the case, refer to the RHT series. - Do not use the sensor in the following environmental conditions:
- Where there is water or moisture
- Where there are corrosive gases
- Where there is oil
- In freezing temperatures or dew condensation
- Dusty locations
- A place exposed to direct sunlight or radiated heat" - Vacuum away any serious dust contamination or else a malfunction may result.
- For other precautions, refer to “General Precautions” for infrared temperature sensors.
*After you have put an item in your shopping cart, choose either [Quote] or [Order].
*For customized products or specifications, contact us using "Inquiry."
*Choose the currency from JPY, USD, or EUR.
| Model Name | Measurable Humidity Range | Standard Price | Inventory Type | Select |
|---|---|---|---|---|
| RHA-5V | 0 to 100 % RH |
39 USD
36 EUR
|
STD |
| Model Name | Measurable Humidity Range | Standard Price | Inventory Type | Select |
|---|---|---|---|---|
| RHA | 0 to 100 % RH |
39 USD
36 EUR
|
BTO |
STD Shipping is available immediately (on the day of order)
WIP Shipping is available within 1 to 3 weeks
BTO Shipping is available within 10 to 18 weeks
NOTE: The above information shows the typical delivery time. For actual delivery time, please confirm us as it depends on our business days and/or product quantities.
In the case of the quote request and order, please be sure to check the Terms and Conditions.
If you have made the procedure of quote request and order, it assumes that agree to the Terms and Conditions.
