B + B Thermo-Technik HYTELOG-USB User guide

OPERATION MANUAL

Humidity- temperature probe

Humidity- temperature probe

with USB-Interface

with USB-Interface

DescriptionDescription

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 quality assurance or air conditioning
systems

Technical data

Humidity measurement

Humidity measuring range 0 ... 100 % RH

Humidity resolution 0.01 % RH

Typical accuracy ±2 % RH (at 23 °C)

Temperature measurement

Temp. measuring range –40 ... 80 °C

Temperature resolution 0.01 °C

Accuracy ±0.3 K between 0 and 40 °C

Module

Power supply Over the USB port

Operating current Approx. 30 mA

Interface USB-interface, 1.1 und 2.0 compatible

Probe dimensions 150 x Ø12 mm

CE-conformance 2004/108/EG

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

EMV-noise immunity: EN 61000-6-2:2011

Scope of supply Humidity probe in stainless steel

casing, interface adapter with USB­connection cable, Windows-Software
and extensive documentation

Article number HYTELOG-USB

Windows-Software

• Calculation and display of dew point, abso-lute 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 measuring probe with
overall dimensions of Ø12 x 150 mm is housed in a stainless steel
casing. The scope of supply includes a port converter, which enables
direct operation through the USB port of a PC.

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 long term stable, capacitive polymer
sensor.The micro controller of the port converter compensates the
linearity error and temperature drift of sensor elements. The high
quality polymer sensor guarantee outstanding measuring accuracy
and long-term stability, also under extreme operating conditions.
The current measured values are transferred to the connected PC
through the USB interface. The display and graphical representation
of the meas-ured values appear on the PC. An easy to use Windows
software for display of measured values and data representation is
included in the scope of supply.
The USB driver software emulates a serial COM-port. The ASCII-pro­tocol for data communication is documented and enables integration
with user’s own developed programs. The probe is supplied in calib­rated condition. With the help of reference cells available as accesso­ries, the accuracy of the probe can be checked by the user himself.
Further calibration and adjusting the scale is also possible.

Technical changes reserved

0141 0316-196 27.08.2015

B+B Thermo-Technik GmbH | Heinrich-Hertz-Straße 4 | D-78166 Donaueschingen
Fon [phone] | Fax [phone] | [e-mail] | bb-sensors.com

1 / 4

OPERATION MANUAL

Humidity- temperature probe

Humidity- temperature probe

with USB-Interface

with USB-Interface

WINDOWS-Software RECORDER

With the help of this program, which is covered in the scope of supply,
the measured values can be received through the USB-interface and

displayed on the PC. The displayed le is compatible with any desired

spreadsheet program, with which it is possible to further process,
statistically evaluate or visualise the measurement data.
In addition, the PC-Software also calculates dew point, absolute
humidity, enthalpy and vapour pressure from the measured values of

relative humidity and temperature. The calculated gures can also be

stored.

First time operation

Connect the humidity meas-uring system to the USB-interface of a

PC. After rst time run of the software, go to menu option „settings“

and select device type as „HYTELOG 4800Bd“ and also select the
type of interface to be used under „connections“ (Note: For USB-ver-

sion, mention the virtual COM-port specied during driver installation).

The remaining settings (Data rate, Parity, Start and Stop bit) are
automatically selected and need not be changed. If the connection is
established, the data communication appears on the terminal window.
Then select „Close“. The current settings will be stored.
If you are not able to establish data link between PC and the

measuring device or the measuring adaptor, then rst please check

the power supply and also cable connection to the PC. Further in­formation on debugging is available under FAQ´s on the CD or at our
Homepage under SUPPORT.

Data recording

First activate all the hooked up measurement channels that are to be

recorded. In ‚Text 1‘ and ‚Text 2‘, you can enter a description, which
has to appear as heading on the top of data le. The data is recorded
in a le, which is de-clared as path in the ‚Start‘ button. The recording
begins with the ‚Start‘ button.

View of the Software “RECORDER“

System requirements

Windows 98, 2000 or XP, RS232 or USB-interface. Generally, older
PCs are also suitable.
Important hint: First connect the USB-Version to the PC after

installing the software. This simplies driver installation and enables

“Plug&Play“ feature.

Installation

A detailed installation instruction is provided on the CD, which
automatically gets started on inserting the CD (prerequisites: Internet­Explorer 5.0 or higher). Follow these instructions for installation:

Manual Installation

Insert the enclosed CD into your drive and select „Run“ in the start-

menu and then browse to select the le ‚setup.exe‘ under the path

LW:\software\RECORDER\TEMPLOG\disk1. Then follow the instruc­tions of the installation program.

EXCEL™

The created le 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
graphically represent or evaluate the measured data.

Calibration

The humidity probe is supplied in calibrated
condition. The accuracy at 23°C is of the order
of ±0.3° K and ±2 % RH. Under normal opera
ting conditions, it is not necessary to again
calibrate the probe. The cross checking of
measuring accuracy of the humidity measu
rement part can be done by end user with the
salt reference cells available as special ac
cessories.
The cross checking must be done in temperature stable environment.
In case, the measured value does not match with the reference value
of the cell, the device should be sent to our calibration laboratory for
check-up.

Technical changes reserved

0141 0316-196 27.08.2015

B+B Thermo-Technik GmbH | Heinrich-Hertz-Straße 4 | D-78166 Donaueschingen
Fon [phone] | Fax [phone] | [e-mail] | bb-sensors.com

2 / 4

OPERATION MANUAL

Humidity- temperature probe

Humidity- temperature probe

with USB-Interface

with USB-Interface

Format of Data transfer

The USB-port works as a so-called COM-Port emulation and from a

programmer‘s point of view, it behaves like a serial interface.

The transfer of useful data takes place in lines. All characters are
ASCII coded. All information is sent continuously without separation
characters. In one line, only information of one channel is transfer­red. At the end of the line, the last two ASCII characters are sent for
the check sum(CRC) of the current line. Each line closes with the

character ‘Carriage return’ ‘<CR>´. Several lines form a data-block. A

data-block can have the following contents, for example:

@<CR>

I01010100B00725030178<CR>

V010892A1<CR>

I02020100B00725030148<CR>

V0216B0EA<CR>

$<CR>

The data block has a following structure:

• A synchronization pattern for the beginning of a Data block. For

synchronization, the sequence ´@ <CR>´ is used.

• The conguration data (´Identier´) of a channel. The data line
begins with the character ‘I’, followed by the logical channel
number, and then followed by conguration data and the sensor

serial number. The line is closed with the check sum and the

character ‘<CR>’.

• The measured values of a channel. The data line begins with the
character ´V´, followed by the logical channel number, followed
by useful data. Only numerical measurement values and the
check sum (CRC) at the end of the line, are transferred. All other
information like number format, number of characters, physical

unit, etc. are contained in the conguration data (probe code).

• The conguration data and measurement values follow the same
scheme for all other channels.

• The continuation character ´$´ <CR>´ is sent at the end of a
data-block.

Structure of conguration data line

• The conguration data line contains all infor-mation of the sensor
working on the corre-sponding channel. The line has a following
structure:

• Identication character ´I´ at the beginning of the line.

• 8 bits (two ASCII characters) logical channel number. The logical

channel number is used to co-relate conguration data with the

measured values. In the Humidity-Temperature module, the tem­perature values are transmitted through channel 01 and humidity
values are transmitted through channel 02.

• 8 bits (two ASCII characters) physical probe coding. Based on
probe coding, the number format, scale, physical unit and allo-

wable range of values are specied. For the described device,

probe coding is 01 for temperature channel and 02 for humidity
channel.

• 8 bits (two ASCII characters) hardware coding (type of the
measurement probe). The Tem-perature/Humidity module has
the code num-ber 01.

• 48 bits (twelve ASCII characters) serial number of the sensor.
Each serial number is allotted only once.

• 8 bits (two ASCII characters) CRC (check sum)

• ´<CR>´ as line termination

Structure of measured value data lines

The measured value data line contains the current measurements of
the sensor operating on the corresponding channel. All information
is represented in binary and is transferred in ASCII coded format
without separation characters. For the probe code 01, the line has
following a structure:

• Identication character ´V´ at the beginning of the line

• 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 resolu-tion. The hexadecimal value is
to be converted into a decimal number and to be divided by

100. With this, the temperature value is ob-tained in °C with
two decimals. For 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
ob-tained in % with two decimals.

• 8 bits (two ASCII characters) check sum (CRC)

• ´ <CR>´ as line termination

In the example given in opposite column, the measured temperature
is equal to 21.94° C and humidity of air is 29.04 % RH.

Technical changes reserved

0141 0316-196 27.08.2015

B+B Thermo-Technik GmbH | Heinrich-Hertz-Straße 4 | D-78166 Donaueschingen
Fon [phone] | Fax [phone] | [e-mail] | bb-sensors.com

3 / 4

OPERATION MANUAL

Humidity- temperature probe
with USB-Interface

Accessories (Optional)

Software PCLOG

Besides storing data on hard disk, the software offers a very
important feature of graphical repre-sentation of all measured and
recorded channels in the form of humidity and 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, representation is also
possible in the form of a table. The in-between space is used for cap­turing measured data series into a spreadsheet program (for example
EXCELTM) or for word processing. All tables and graphic representa­tions can be printed out in colour. In addition, simple monitoring and
control functions are also integrated in the software. Limits can be set

for each channel. An acoustic signal (Wave le) is given out when the

values are exceeded. Control of up to eight external users is possible
by a relay card, which is to be attached at the parallel port.
A speciality of the program is the integrated hx-calculator. This calcu­lates further fteen parameters like dew point, absolute humidity, en­thalpy, the wet bulb temperature, the vapour pressure and saturated
vapour pressure etc. from the measured values of relative humidity
and temperature.

elements. The system is operated through a self designed front panel,
on which you can arrange switches, potentiometers, displays, LED´s,
instruments etc. The software also enables compilation of the project

into an EXE-le, which can run without “Prolab“.

Relay cards

The output of control information is given by the WINDOWS software
„PCLOG „ or „PROFILAB“ over the USB-Port. The relay cards,
available as accessories, are needed for giving connection for heavier
loads like heater valves, servomotors or signal generators. The swit­ching status of output is indicated through LEDs. The relay boards
can also be used for many other applications.
Humidity reference cells
The B+B Humidity reference cells serve as humidity standards, 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 specic relative humidity value adjusts itself. The cells
also contain a semi-permeable Teon membrane (diaphragm) through

which the salt solution is separated from the measurement area.

Software Prolab

With this software, professional measurement projects can be carried
out in a simple, graphical development platform. You can simply draw
the wiring diagram of the measurement circuit and do the project
design. Without any knowledge of programming, the measure­ment 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

Ordering number catalogue

USB-Humidity-Temperature probe with stain­less steel sensor

RS232-Humidity-Temperature probe with
stainless steel sensor

Handy measuring instrument with LCDisplay
wirh USB and Dew point and Absolute humi­dity display

Power supply unit N-12V-670mA

Windows-Software 0141 0318-30

Windows-Software PROFILAB EXPERT PROFILAB

Humidity reference cells-set, Saturation 33%
und 75 %

Humidity reference cells, various values On request

HYTELOG-USB

HYTELOG-RS232

HM309-USB

REFZ-12Z-SET1

Attention

Please avoid extreme mechanical and inappropriate exposure.

The device/product is not suitable for potential explosive areas and
medical-technical applications.

Technical changes reserved

0141 0316-196 27.08.2015

B+B Thermo-Technik GmbH | Heinrich-Hertz-Straße 4 | D-78166 Donaueschingen
Fon [phone] | Fax [phone] | [e-mail] | bb-sensors.com

4 / 4