HPP804B100 查看數據表（PDF） - Humirel

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HPP804B100

TEMPERATURE AND RELATIVE HUMIDITY SENSOR

Humirel 

2 TECHNICAL DATA

CHARACTERISTICS (CONT)

Humidity sensor (Ta = 25°C, measurement frequency @ 10 kHz unless otherwise noted)

Characteristics

Temperature coefficient at 55 % RH / 10 to 40°C

Humidity Hysteresis

Deviation to typical curve (see below) (10 % to 90 % RH)

Supply voltage

Leakage current (Vs = 5 volts)

*Tighter tolerance available on request

Temperature sensor

Symbol

Min.

Typ.

Tcc

+ 0.04

+/-1.5

+/-2

Vs

1

5

x

Max.

Unit.

pF/°C

% RH

% RH

10

Vac

1

nA

Characteristics

Symbol

Min.

Typ.

Max.

Unit.

Nominal resistance @ 25°C

Beta value : B25/100

Temperature measuring range

Nominal Resistance Tolerance*

B value tolerance

Response Time

10

kΩ

B

3600

3730

3800

Ta

- 40

100

°C

Rn

2

3

%

B

3

%

τ

10

s

*Tighter tolerance available on request

Typical response curve of HTS2010SMD in humidity

205

200

195

190

185

180

175

170

165

160

0

10

20

30

40

50

60

70

80

90

100

Relative Humidity (% RH)

Typical temperature output

Depending on the needed temperature measurement range and the

associated accuracy, we suggest two methods to access to the NTC

resistance values.

1

NTC resistance in Ω at temperature T in K

NTC resistance in Ω at rated temperature in K

Temperature in K

B value, material-specific constant of the NTC thermistor

Base of natural logarithm (e = 2,71828)

The actual characteristic of an NTC thermistor can, however, only be

roughly described by the exponential relation, as the material parame-

ter B in reality also depends on temperature. So this approach is only

suitable for describing a restricted range around the rated temperature

or resistance with sufficient accuracy.

2 For practical applications a more precise description of the real R/T

curve may be required. Either more complicated approaches (e.g the

Steinhart-Hart equation) are used or the resistance/temperature rela-

tion as given in tabulated from. These standardized curves have been

experimentally determined with utmost accuracy ; they are aslo availa-

ble for temperature increments of 1 degree.

Calibration data are traceable to NIST

standards through CETIAT laboratory.

Measurement frequency : 10 kHz

Ta = 25°C

Polynomial response :

C in pF, RH in %

R NTC standardized

°C ohm °C ohm

-40 262960 35 6734

-35 194110 40 5575

-30 144790 45 4636

-25 109030 50 3874

-20 82923 55 3237

-15 63591 60 2720

-10 49204 65 2304

-5 38279 70 1960

0 30029 75 1674

5 23773 80 1432

10 18959 85 1235

15 15207 90 1067

20 12280 95 927

25 10000 100 809

30 8178

R NTC exponential

°C ohm °C ohm

-40

35 6670

-35

40 5500

-30

45 4550

-25

50 3800

-20

55 3180

-15

60 2690

-10 52000 65 2270

-5 40500 70 1940

0 31000 75 1650

5 24500 80 1430

10 19300 85 1230

15 15400 90 1070

20 12350 95 925

25 10000 100 810

30 8140

Humirel Sensor Device Data / HPC008 Rev E September 2002

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