HPP801A031 View Datasheet(PDF) - Humirel

Part Name

Description

Manufacturer

HPP801A031

RELATIVE HUMIDITY SENSOR

Humirel 

TYPICAL RESPONSE: look-up table (Polynomial Reference curve)

Polynomial response of HS1101LF:

C (pF)=C@55 %*( 3.903 10-8*RH3-8.294 10-6*RH2+2.188 10-3*RH+0.898)

Typical response look-up table (Polynomial Reference curve) “10KHz/1V”

RH

(%)

0

5

10

15

20

25

30

35

40

45

Cp

(pF)

161.6 163.6 165.4 167.2 169.0 170.7 172.3 173.9 175.5 177.0

RH

(%)

55

60

65

70

75

80

85

90

95

100

Cp

(pF)

180 181.4 182.9 184.3 185.7 187.2 188.6 190.1 191.6 193.1

50

178.5

Reversed Polynomial response of HS1101LF:

RH (%) = -3.4656 10+3*X3+1.0732 10+4*X2-1.0457 10+4*X+3.2459 10+3)

With X=C(read) / C@55%RH

MEASUREMENT FREQUENCY INFLUENCE

In this data sheet, all capacitance measurements are done @ 10 kHz /1Volt. However, the sensor can operate

without restriction from 5 kHz to 300 kHz.

POLARIZATION

In order to get a better reproducibility during measurements, always connect the case of the header (pin 2) to the

ground of the circuit. The case of the header is located on the opposite side of the tab.

SOLDERING INSTRUCTIONS

We recommend taking specific attention to soldering conditions to get the best performance of Humirel sensors.

See Application Note. To get it, please contact: application@humirel.com.

PROPORTIONAL VOLTAGE OUTPUT CIRCUIT

Block diagram

HUMIREL HPC052 Rev.E April 2007

TECHNICAL 2 DATA

HS1101LF

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