The single humidity sensor is housed in the appliance h8800 or it can be. The sensor s design is based on a unique capacitive cell. Technical data1relative humidity sensorhs 1100 hs 1101based on a unique capacitive cell, these relative humidity sensors are designed for highvolume, cost sensitive applications such as office automation, automotive cabinair control, home appliances, and industrial process control systems. Water vapour is able to penetrate this layer, changing the total capacitance. Dht11 digital temperature and humidity sensor is a calibrated digital signal output of the temperature and humidity combined sensor. Relative humidity sensor hs1100 hs1101 1 based on a unique 1 capacitive cell, these relative humidity sensors are designed for high volume, cost sensitive applications such as office automation, automotive cabin air control, home appliances, and industrial process control systems.
Based on a unique capacitive cell, these relative humidity sensors are. The circuit is shown in figure 2, and a complete parts list is provided in the appendix. Capacitance based humidity sensor microcontroller eewiki. Application the first subject is the 555 timer and how it will work in the circuit. October 2012 66 ordering information hpp801a031 multiple package quantity of 48 pieces hs1101lf capacitive relative humidity sensor to distinguish hs1101 from hs1101lf, hs1101lf is designed with a black plastic cap. Sensor letters 2005, 3, 114 lee and lee humidity sensors. High precision capacitive type full range temperature compensated relative humidity and temperature measurement c alibrated digital signal o utstanding longterm stability e xtra components not needed l ong transmission distance, up to 100 meters. Technical data4 qualification process hs1100hs1101 sensors have been qualified through a complete qualification process taking in account many of therequirements of the mil std750 including. They arealso useful in all applications where humidity compensation is needed. Pdf design, development and calibration of virtual system for. From the above experiments i concluded that it is not easily possible to obtain reliable humidity measurements using an arduino mega or due and a hs1101 sensor. Capacitive humidity sensors sensor technology metropolia. Unlike its 1st cousin, the t8800, used for temperature sensing, the h8800 has one sensor to detect and report relative humidity.
Humirel, alldatasheet, datasheet, datasheet search site for electronic. I currently have both dht11 and hs1101 actually a htf3223 module, and i have the following readings at the moment. Green house intelligent control system microcontrollers lab. Since the hs1101 relative humidity sensor is based on a capacitive cell, relative humidity can be related to the decay time of the sensor. You could put that table an array, and then look up and interpolate values based on the value from the temperature sensor. Due to the characteristics of capacitor type humidity sensor, the system can respond to humidity change very fast. Unfortunately, i went cheap and didnt research this enough. How to set up the dht11 humidity sensor on an arduino. Very small change in capacitance and very small capacitance all together.
Using an hs1101 humidity sensor arduino forum index. Hs1101 datasheet14 pages humirel relative humidity sensor. I thought it would be nice to get humidity too, so i needed a sensor. The hs1100 hs1101, used as variable capacitor, is connected to the trig and thres pin. Can the hs1101 humirel humidity sensor be used with a uno without having to build a 555 timer circuit. The hs1101 is a capacitive type sensor that will operate from 199% relative humidity. Hs1101 humidity sensor 2pin based on a unique capacitive cell, these relative humidity sensors are designed for high volume, cost sensitive applications such as office automation, automotive cabin air control, home appliances, and industrial process control systems. Front panel of virtual instrument for rh capacitive sensor calibration. By using simple rc circuit wiring, it is easy to create an interface to a microcontroller. Based on a unique capacitive cell, these relative humidity sensors. Digital humidity sensor with lcd display using microcontroller. Before you can use the dht11 on the arduino, youll need to install the dhtlib library. Relative humidity rh sensors and absolute humidity moisture sensors.
Hs11xx hs1101 ic1 7555 hm1510 tlc555 humidity hs1101 sensor hs1101 humidity sensor voltage output hs1101 humirel 7555 harris text. Hr202 is a new kind of humiditysensitive resistor made from organic macromolecule materials, it can be used in occasions like. Hs1101lf relative humidity sensor ordering information hpp801a031 multiple package quantity of 48 pieces hs1101lf capacitive relative humidity sensor to distinguish hs1101. Measured frequency is converted back into humidity using a algorithm in. Can only be used with any of our humidity indicators and controllers.
Hs1101 relative humidity sensor components datasheet pdf data sheet. The timer will use the capacitance of the hs1101 sensor. Hs1100 hs1101 sensors are free of cr vi, cd and hg. Walters, basics of relative humidity calibration for humirel hs1100hs1101 sensors. Design of humidity sensor for anticondensing in switchgear. The hih4000 series humidity sensors are designed specifically for high volume oem original equipment manufacturer users. Revised june 2017 guidelines for best practices for. It uses a dedicated digital modules capture technology and the temperature and humidity sensor. Pdf this paper is presented a temperature and humidity instrument based on 1wire sensors. Hs1101 pdf, hs1101 description, hs1101 datasheets, hs1101. Measured frequency is converted back into humidity.
Hs1101 datasheet14 pages humirel relative humidity. Pdf this paper is presented a temperature and humidity instrument based on 1 wire sensors. Relative humidity sensor, hs1101 datasheet, hs1101 circuit, hs1101 data sheet. They arealso useful in all applications where humidity. Hs1101lf capacitive relative humidity sensor to distinguish hs1101. The dht22 is a basic, lowcost digital temperature and humidity sensor. Be sure the negative side of the sensor is connected to. The hs1101 humidity sensor is a costeffective solution for measuring relative humidity within 5%. The sensors design is based on a unique capacitive cell.
Both sensors are on my computer desk, temperature is 26c. Relative humidity sensor hs 1100 hs 1101 based on a unique capacitive cell, these relative humidity sensors are designed for high. This sensor consists of a capacitor which varies with relative humidity and is used in a 555 circuit to generate a pulse train of frequency related to relative humidity. This discussion focuses on a relatively simple technique for measuring relative humidity using a humirel hs1101 sensor. Relative humidity sensor hs 1100 hs 1101 based on a unique capacitive cell, these relative humidity sensors are designed for high volume, cost sensitive applications such as office automation, automotive cabin air control, home appliances, and industrial process control systems. Digital humidity sensor with lcd display is used to measure the relative percentage of water vapors in air. Hs1101 datasheet, hs1101 datasheets, hs1101 pdf, hs1101 circuit. Hs1101lf capacitive relative humidity sensor to distinguish hs1101 from hs1101lf, hs1101lf is designed with a black plastic cap. The datasheet you provided contains a chart which converts resistance of the sensor to humidity at a given temperature. Compatible with automatized assembly processes, including wave soldering, reflow and water immersion to control the impact of the covid19 outbreak, indian gov. You can see it varies from 163 pf for 0% humidity to 201 pf for 100%. Hs1100hs1101 sensors are lead free components hs1100hs1101 sensors are free of cr vi, cd and hg.
As described above, the humirel hs1101 humidity sensor. To distinguish hs1101 from hs1101lf, hs1101lf is designed with a black plastic cap. Hs1101 humirel hs1101 humidity sensor hs1101 humidity sensor voltage output hf3223 htf3223 8930 hpc014 sensor ntc 10k text. Humirel sensor device data hpc048 rev o october 2003 based on the rugged hs1101 humidity sensor, htf 3226 is a dedicated humidity and temperature transducerdesigned for oem applications where a reliable and accurate measurement is needed. Aug 01, 2016 the dht22 is a basic, lowcost digital temperature and humidity sensor. Hs1100 hs1101 sensors are lead free components hs1100 hs1101 sensors. Direct input to a controller or other device is made possible by this sensors near linear voltage output. The hs1101 humidity sensor is a solution for measuring relative humidity within 5% accuracy.
The hs1100 hs1101 equivalent capacitor is charged through r2 and r4 to the threshold voltage approximately 0. Technical data relative humidity sensor hs1100 hs1101 1 based on a unique 1 capacitive cell, these relative humidity sensors are designed for high volume, cost sensitive applications such as. Technical data4 qualification process hs1100 hs1101 sensors have been qualified through a complete qualification process taking in account many of therequirements of the mil std750 including. Full datasheet hs1100 manufactirer humirel, humidity sensors archive 1. Humidity sensor hs1101 is used to measure level of moisture in air. Capacitive humidity sensor and physical principles models.
Pin 7 is used as a short circuit pin for resistor r4. Relative humidity measurement using the humirel hs1101 sensor. This document describes how to use the humidity sensor pictailz demo board as a development tool to emulate and debug firmware on a target board. Typical response curve of hs 1100hs 1101 in humidity. Hs1101 capacitive humidity sensor is interfaced with pic16f877a microcontroller to measure humidity and lcd is used to display percentage humidity. The humidity sensor designed in this paper has not only satisfied special needs above, but also is provided with reliability, linearity, cheapness, so it is especially fit for switchgears. Hs1101 datasheet 24 pages humirel relative humidity sensor. Well, in my experience capacitative humidity sensors require extra calibration and fine tuning.
Measures relative humidity for indoor, open space applications. Single sensor or a remote probe up to 500 h8800 the h8800 from gri is a single sensor programmable humidity monitoring security device. With a typical current draw of only 200 a, the hih4000 series is often ideally. The timer will use the capacitance of the hs1101 sensor to create a square waveform.
Hs1101 datasheet34 pages humirel relative humidity. Combined humidity and temperature sensor energy efficient high resolution true, temperaturecompensated digital i2c or spi output soic8 smd surface mount device and sip 4 pin housing styles available with or without hydrophobic filter and condensationhumidity sensors line guide continued on page 5. Relative humidity sensor, hs1101lf datasheet, hs1101lf circuit, hs1101lf data sheet. Examples of products that are sensitive to humidity. For more precise measurements, use a known humidity meter and adjust the rhconstant value in relativehumidityreading. Hs1101 datasheet 44 pages humirel relative humidity sensor. Adding 50 cm of wire would add enough capacitance to overwhelm what you are trying to measure. Hs1101 datasheet34 pages humirel relative humidity sensor. Technical data2characteristics contdproportional voltage output circuit160165170175180185 datasheet search, datasheets, datasheet search site for electronic. Most humidity sensors are relative humidity sensors, which can be further classi. Based on the rugged hs1101 humidity sensor, hf3223 htf3223 is a dedicated humidity. Therefore, shelf life and product integrity can be even more greatly affected if the ifu calls for 3060% rh, but the hdo lowers the rh to 20%. Humirel, alldatasheet, datasheet, datasheet search site for electronic components and. The hh10d relative humidity sensor module is comprised with a capacitive type humidity sensor, a cmos capacitor to frequency converter and an eeprom used to holding the calibration factors.
In the present paper a frequency mode data acquisition technique. The hs1101 is a capacitive type sensor that can operate from 0% to 100% relative humidity. Its fairly simple to use, but requires careful timing to grab data. Arduino and hs1011 humidity sensor example get micros. The sensor is a capacitor, made from two metal electrodes with a porous dielectric substance between them. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air, and spits out a digital signal on the data pin no analog input pins needed.
It features a miniature connector for easy, costeffective mechanical mounting. Attached is a graph showing capacitance vs humidity for the hs1101. It has all the functions needed to get the humidity and temperature readings from the sensor. More information are available on request dim min mm max mm a 9. The hs1101 humidity sensor is a costeffective solution for measuring relative humidity within 5% accuracy. Using the hs1101 humidity sensor with an arduino example. Humirel relative humidity sensor,alldatasheet, datasheet, datasheet search site for electronic. Hs1100 humirel relative humidity sensor, humidity sensors. Package outline hs1100 all these tests are regularly performed on different lots from production. Using the hs1101 humidity sensor with an arduino example mikro.
They are also useful in all applications where humidity compensation is needed. Hs1101 is a capacitative type humidity sensor, so additional circuit is used to convert change in capacitance of humidity sensor into frequency and frequency is measured with the help of microcontroller. Two types of absolute humidity sensors or hygrometers are available, including solid moisture sensor and mirror. A capacitive humidity sensor is used to measure relative humidity with a usual range of 5 to 95 % relhum. The source code written in c is provided in an accompanying zipped file. Hs1101 datasheet44 pages humirel relative humidity sensor.