User manual

OPERATION MANUAL
Technical changes reserved
0141 0316-194 27.08.2015
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 tempe-
rature 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. The hexadecimal
value is to be converted into a decimal number and to be divided
by 200. With this, the relative humidity RH value is obtained in %
with two decimals.
• 8 bits (two ASCII characters) check sum (CRC)
• ´ <CR>´ as line termination
As per the opposite column in the given example, the measured tem-
perature is equal to 21.94 °C and humidity of air is 29.04 % RH.
View of the Software “RECORDER“
Accessories (Optional)
Software PCLOG
Besides storing data on hard disk, the software offers a most impor-
tant feature of graphical representation of all measured and recorded
channels in the form of a temperature Vs time chart (online scriber
function). By means of Drag & Click, the window section can be
enlarged and the time or temperature axis can be scaled as desired.
Besides the graphic view, the representation is also possible in the
form of a table. The Windows scratchpad is used for capturing measu-
red data series into a spreadsheet program (for example EXCEL™) or
into WORD™. All tables and graphic representations can be printed
out in color. In addition, simple monitoring and regulation functions are
also integrated in the software. Limits can be set for each channel. An
acoustic signal (Wave le) is given when the values are exceeded.
Control of up to eight external actuators is possible by a relay card, to
be attached at the parallel port.
A speciality of the program is the hx-calculator. This further calculates
15 other gures like the dew point, absolute humidity, enthalpy, the
wet bulb temperature, the vapour pressure and saturated vapour
pressure etc.
Software Prolab
With this software, professional measurement projects can be
realized in a simple, graphics based development platform. You can
simply draw the wiring diagram of the measurement circuit and do the
project design. Without any knowledge of programming, the measu-
rement values of temperature and humidity can be easily used in the
measurement circuit. Arithmetic and logical components take care of
linking and processing of the measured values. Modules like impulse
generators, timers and relay cards etc. provide extensive possibilities
for control and regulation. Various instruments, scribers and tables
serve as the storage and representation of measured values and
you can monitor the measurement system with display and control
elements. The system is operated through a self designed front panel,
on which you can arrange switches, potentiometers, displays, LEDs,
instruments etc. The software also enables compilation of the project
into an EXE-le, which can run without “Prolab“.
Humidity temperature sensor
with serial interface
B+B Thermo-Technik GmbH | Heinrich-Hertz-Straße 4 | D-78166 Donaueschingen
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