TECHNICAL

DATA

1

TEMPERATURE AND HUMIDITY MODULE

Meets RoHS regulations

HTF3226LF

Characteristics

Symbol

Min.

Typ.

Max.

Unit.

Humidity metrology range

RH

1

99

% RH

Relative Humidity accuracy (10 to 95 % RH)

RH

+/- 5

+/- 10

% RH

Voltage supply

4.75

5.0

5.25

VdC

Nominal output @ RH = 55 %

8670

8750

8830

Hz

Current consumption

0.1

mA

Temperature coefficient (0 to 60 °C )

- 0.2

% RH/°C

Averaged Sensitivity from 33 % to 75 % RH

-13

- 14

-16

Hz/% RH

Condensing conditions output (100% RH)

Fout

8000

8300

Hz

Recovery time after 150 hours of condensation

t

10

s

Humidity Hysteresis

+/-1

% RH

Long term stability

+/-0.5

% RH/yr

Time constant (33 to 76% RH, static, @63 %)

τ

10

s

Humirel Sensor Device Data / HPC053 RevD June 2005

Based on the rugged HS1101LF humidity sensor,

HTF3226

LF is a dedicated humidity and

temperature transducer designed for OEM applications where a reliable and accurate measurement is

needed. It features a miniature connector for easy, cost-effective mechanical mounting. Direct interface

with a micro-controller is made possible with the module’s linear frequency output.

G

G

G

G

G

G

G

G

G

G

G

G

G

G

The best combination of cost effectiveness and performance

Stable, linear proportional frequency output from 10 to 95% RH.

Calibrated within +/- 5% RH @ 55% RH.

10 kohm +/- 3% NTC temperature sensor (1% optional)

Stable and reproducible characteristics with temperature.

High reliability and long term stability.

Instantaneous de-saturation after long periods in saturation phase.

Fast response time.

High resistance to chemicals.

Not affected by water immersion.

Patented solid polymer structure.

Ratings

Symbol

Value

Unit

Storage Temperature

-40 to 85

°C

Storage Humidity Range

0 to 100

% RH

Supply Voltage (Peak)

Vs

7

Vdc

Humidity Operating Range

RH

0 to 99

% RH

Temperature Operating Range Ta

-30 to 85

°C

High quality thermistor

Stable

High sensitivity