HS300x-ML1 Datasheet

R36DS0016EU0001 Rev.0.01

Nov 8, 2021

Page 15

5.10

Reading the HS300x-ML1 ID Number

The sensor ID is a 32-bit number and can be read in a similar fashion as illustrated in steps 1 and 2 of Figure 19,

using the appropriate register address values. The ID number is stored in two registers, with the upper and lower

16 bits stored in register addresses 0x1E and 0x1F, respectively.

6.

Calculating Humidity and Temperature Output

The entire output of the HS300x-ML1 is 4 bytes. The relative humidity (in percent) and the temperature (in

degrees Celsius) are calculated with Equation 1 and Equation 2, respectively.

14

[13 0]

[%RH]

100

21

Humidity

:

Humidity





=

∗





−





Equation 1

o

14

[15 2]

[ C]

165 40

21

Temperature

:

Temperature





=

∗−





−





Equation 2

7.

Application Circuit

Figure 19. HS300x-ML1 Application Circuit

8.

Storage and Handling

Recommendation: Once the sensors are removed from their original packaging, store them in metal-in antistatic

bags.

Avoid using polyethylene antistatic bags as they may affect sensor accuracy.

The nominal storage conditions are 10 to 50°C and humidity levels within 20% to 60%RH. If stored outside of

these conditions for extended periods of time, the sensor readings may exhibit an offset. The sensor can be

reconditioned and brought back to its calibration state by applying the following procedure:

1.

Bake at a temperature of 100°C with a humidity < 10%RH for 10 to 12 hours.

2.

Rehydrate the sensor at a humidity of 75%RH and a temperature between 20 to 30°C for 12 to 14 hours.