3B Scientific Humidity Sensor User Manual

3B SCIENTIFIC

Instruction sheet

10/08 WH

®

PHYSICS

Humidity sensor U11336

1. Safety instructions

In order to avoid permanent damage to the built-in
semiconductor sensor, strictly observe the follow­ing instructions:

• Never exceed the maximum operating tem-

perature of +85°C.

• Do not allow the semiconductor sensor to

come into contact with water. Do not expose
the semiconductor sensor to direct sunlight.

The humidity sensor is not suited for safety appli­cations.

2. Description

The humidity sensor is used for measuring relative
humidity (RH) and is used in conjunction with the
3B NETlog

Once connected, the sensor is automatically de­tected by the interface.

TM

interface (U11300).

3. Scope of delivery

1 Humidity sensor
1 8-pin mini DIN connecting cable, length: 60 cm

4. Technical data

Measuring range: 0 to 95%,

non-condensing

Sensor type: Capacitive semiconduc-

tor sensor

Relation between
output value
and relative humidity: Linear

Accuracy: 3% of the relative humid-

ity (RH) and 1% in the
range from 0% to 95%
5% of the relative humid­ity (RH) and 1% in the

range from 0% to 5%
Resolution: 0.1%
Response time: 15 s
Maximum operating

temperature: 85°C

1

5. Operation

• Use the mini DIN connection cable to connect

the humidity sensor to the 3B NETlog

• Place the humidity sensor in the test environ-

TM

unit.

ment.

• After the relevant response time has elapsed,

read the value for humidity indicated on the
3B NETlog

TM

display.

Note: slight air movement in the vicinity of the
sensor may reduce the response time.

6. Applications

Meteorology
Monitoring greenhouses and terrariums
Refrigeration
Dehumidification

6.1 Required apparatus:

1 3B NETlog

TM

U11300

1 Humidity sensor U11336

Additionally recommended for the recording and
evaluation of readings on a computer:

1 3B NETlab

TM

for Windows U11310

6.2 Example:

Screen display of relative humidity

3B Scientific GmbH • Rudorffweg 8 • 21031 Hamburg • Germany • www.3bscientific.com

Subject to technical amendments

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