Instructions

ManualsBrandsB + B Thermo-Technik ManualsActive ComponentsStainless Steel Humidity/temperature Detector For RS232 Module Stainless steel housin

OPERATION MANUAL

Technical changes reserved

0141 0316-194 27.08.2015

Humidity temperature sensor

with serial interface

DescriptionDescription

Technical data

Humidity measurement

Humidity measuring range 0 ... 100 % RH

Humidity resolution 0.01 % RH

Typical accuracy ±2 % RH (at 23 °C)

Temperature measurement

Temperature measuring

range

–40 ... +80 °C

Temperature resolution 0.01 °C

Accuracy ±0.3 °K between 0 … 40 °C

Module

Operating voltage DC 9 … 15 V DC, reverse polarity

protected, 40 mA

Operating current 30 mA approx.

Interface RS 232 compatible, 4800 Baud, 8

N 1

Sensor dimensions 150 x Ø12 mm

CE-Conformance 2004/108/EG

EMV-Noise emission: EN 61000-6-3:2011

EMV-Noise withstanding: EN 61000-6-2:2011

Plug connector Data DB9-Female, Pin 2 & 5

Power supply Jack 3.5 mm

Scope of supply Humidity sensor in stainless steel

casing, interface adaptor with PC

connection cable, Wind ows-Software

and extensive documentation

Characteristics features

• Combined Temperature and Humidity measurement

• Sensor in Stainless steel casing with Sinterlter

• Resolution 0.01 % RH, 0.01 °C

• Accuracy 2 % RH, 0.3 °C

• Inclusive of Windows-Software “Recorder”

• Calibration possibility with salt reference cells

Areas of application

• Monitoring of stock rooms, in food industry, quality assurance. in

air conditioning systems

• Humidity measurement system for customer specic projects,

micro controller applications or under Windows or Linux

Windows-Software

• Calculation and display of dew point, absolute humidity, vapour

pressure, saturated vapour pressure and enthalpy

• Tabular representation of measured values

• Storing of data on hard disk

Description

The product offers an efcient measurement and display system for

temperature and relative humidity. The compact measurement sensor

with overall dimensions of Ø12 x 150 mm is housed in a stainless

steel casing. The interface converter, covered in the scope of supply,

enables direct operation with a PC or any customer specic control

and regulation system.

The front area of the sensor is provided with a polyethylene-sinter lter

for protection against sprinkling water and mechanical damages. An

accurate NTC has been used as temperature sensor. The humidity

measurement operates with a durable and stable capacitive polymer

sensor.

The micro controller of the interface converter compensates the line-

arity error and temperature drift of the sensor elements. The applied

mathematical procedures guarantee outstanding measuring accuracy

and long term stability, also under extreme operating conditions.

The current measured values are sent as ASCII string to the connec-

ted PC through the serial interface (RS 232 compatible). The display

and graphical representation of the measured values appear on the

PC. An easy to use Windows software for display of measured values

B+B Thermo-Technik GmbH | Heinrich-Hertz-Straße 4 | D-78166 Donaueschingen

Fon +49 771 83160 | Fax +49 771 831650 | info@bb-sensors.com | bb-sensors.com

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Summary of content (5 pages)

PAGE 1
OPERATION MANUAL Humidity temperature sensor with serial interface Description Characteristics features • • • • • • Combined Temperature and Humidity measurement Sensor in Stainless steel casing with Sinterfilter Resolution 0.01 % RH, 0.01 °C Accuracy 2 % RH, 0.3 °C Inclusive of Windows-Software “Recorder” Calibration possibility with salt reference cells Areas of application • Monitoring of stock rooms, in food industry, quality assurance.
PAGE 2
OPERATION MANUAL Humidity temperature sensor with serial interface and data representation is included in the scope of supply. The ASCII-protocol for data communication is documented and enables integration with user developed programs. More such modules can be operated with a PC , provided more free COM-ports are available at our disposal. The measurement sensor is supplied in calibrated condition.
PAGE 3
OPERATION MANUAL Humidity temperature sensor with serial interface EXCEL™ If you want to use EXCEL for evaluation, then operate the control button EXCEL before start of recording, so that suitable decimal separation characters and field separators are inserted. The created file is compatible with CSV-Format. In order to display the measured data, you can use graphic tools, for example, the diagram-assistant. However, other programs can also be used to evaluate the measured data.
PAGE 4
OPERATION MANUAL Humidity temperature sensor with serial interface • 8 bits (two ASCII characters) logical channel number (01 for temperature, 02 for humidity) • 2 Byte (4 ASCII-characters) measurement data. For the temperature with 0.01 °C resolution. The hexadecimal value is to be converted into a decimal number and to be divided by 100. With this, the temperature value is obtained in °C with two decimals. For the humidity value with 0,005% resolution.
PAGE 5
OPERATION MANUAL Humidity temperature sensor with serial interface Humidity reference cells The B+B Humidity reference cells provides specific humidity conditions, in order to create stable humidity values for experimental purposes or for calibration of the measuring device. The accuracy possible under stable temperature environment conditions is in the range of 1% relative humidity. The working principle is based on a saturated salt solution, over which a specific relative humidity value adjusts itself.