IBR ISM-usb.1 User manual

I n t e r f a c e t e c h n o l o g y
Document No. :
D2F620 010
Edition :
April 2020
Copyright :
IBR
Messtechnik GmbH & Co. KG
INSTRUCTION MANUAL
ISM-usb.1 / .2
PC - Radio station for wireless
data transmission

2
Manual ISM–usb.1 / .2
Important information at the start
0°C
+50°C
- 30°C
+60°C
max.
min.

Observe permissible temperature range
Keep dry
Do not drop
Protect from mechanical shock, do not open case
Locate with maximum possible distance from technical devices ( such as PCs,
monitors etc. ), in order to avoid radio interferences
Contents
1. Introduction
1.1 General information ................................................................................................................ : 3
1.2 Features ..................................................................................................................................: 4
1.3 Technical data .........................................................................................................................: 4
2. Getting started
2.1 Delivered items ....................................................................................................................... : 5
2.2 System requirements ..............................................................................................................: 5
2.3 Installation of the USB - driver for the ISM-usb PC - Radio station ........................................: 5
2.4 Installation and initial operation of the IBR_SimKey PC software........................................... : 6
3. Programming of gauge radio modules by using the IBR_SimKey PC software..................... : 9
4. Confirmation signals of the gauge radio modules ...................................................................: 14
5. Signal strength measurement...................................................................................................... : 15
6. Important conditions concerning the use of IBR_SimKey PC software..................................: 17
7. Safety instructions ....................................................................................................................... : 18
8. Declaration of conformity ............................................................................................................ : 19
9. Guarantee .....................................................................................................................................: 20
We reserve the right to change the design and technical data contained in our documentation without
notifying our customers. IBR is not obliged to notify buyers of product changes.
IBRit is a registered trademark of IBR.
Windows, EXCEL and Word are registered trademarks of Microsoft Corporation.
This document must not be reproduced, in part or in its entirety, without the prior written consent from IBR.

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Manual ISM–usb.1 / .2
1. Introduction
1.1 General information
The IBRit-rf1 and ISM radio module series allow the wireless transmission of measurement data
from gauges to a PC with USB - interface or to an IMB-rf1 / IMB-ISM module ( as the case may be ).
On the PC side the wireless communication with the gauges occurs via the ISM-usb
PC - Radio station.
The ISM-usb PC - Radio station is connected to the PC via an USB - port and allows the communication in
an address range from 1 ... 500.
The differentiation of the data from the individual radio modules is achieved by address numbers. The
address number and other individual radio module settings concerning the particular application can be
transmitted from the PC to the radio modules and are stored there.
The corresponding PC software IBR_SimKey is included in the delivery of the ISM-usb PC - Radio station.
The transmission of measurement data is triggered by pressing the data key on the gauge ( if available ), or
on the radio module or automatically when the measuring value changes. The radio module completes the
measured value by adding an address number ( sender ), a communication control word and a double
checksum. The special data coding and the PC’s reply directly to the radio module guarantee absolute data
security.
A transmission error, e.g. caused by a radio interference, is detected by the communication dialogue
between PC and radio module. The measurement data transmission is automatically repeated up to 3
times within 0,01 ... 0,08 seconds. A successful measurement data transmission is confirmed to the user by
a green flashing light and short beep tone on the radio module. If the PC could not receive the measure-
ment data from the radio module faultlessly, a red flashing LED and two long beep tones inform the user
about the faulty measurement data transmission. The user can obtain further error information by reading
the red LED’s Morse - code ( please refer to page 14 of this manual ).
The maximum radio range depends strongly on the environment and can vary from several meters up to
300 meters.
The received measurement data can be made available for nearly any software, because the IBR_SimKey
PC software utilizes the keyboard buffer to output the measurement data.

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Manual ISM–usb.1 / .2
1.2 Features
PC - Radio station ISM-usb with USB - interface for communication with up to
120 radio modules
Radio modules ISM-232 / IBRit-rf1-232 for gauges with RS232 interface
( for connection ISM-cab1 / IBRit-rf1-cab1 for connection to gauges via cable,
to gauge ) can be adapted to various interfaces
ISM-mahr / IBRit-rf1-mahr for gauges with MarConnect interface
ISM-mit1 / IBRit-rf1-mit1 for gauges with Mitutoyo Digimatic interface
ISM-opto / IBRit-rf1-opto for gauges with Opto-RS232 interface
ISM-prox / IBRit-rf1-prox for gauges with Proximity interface
ISM-S233 / IBRit-rf1-S233 for gauges with Power-RS interface
ISM-3i for gauges with TRIPLE-I interface
ISM-ISi for IMS measuring probes
IBRit-rf1-digi for gauges with Mitutoyo Digimatic interface
In the following the IBRit-rf1 and ISM radio module are referred to as “gauge radio modules”.
High data security by double and independent check sum control
Optical and acoustical transmission confirmation by the radio modules
Radio range of the ISM-usb.1 up to 300 m in case of visual contact ( with external antenna )
1.3 Technical data Mechanical characteristics ISM-usb.1
Case
Plastic
Wall holder
Wall holder for ISM-usb with two mounting holes
Dimensions with antenna W x H x D / Weight
47 x 275 x 30 mm / ca. 175 g
Mechanical characteristics ISM-usb.2
Case
Plastic
Dimensions with antenna W x H x D / Weight
20.3 x 52.5 x 45.5 mm / ca. 20 g
Electrical characteristics*
Power supply
By USB - interface
Current consumption
max. 40 mA
Transmission frequency
433.926 MHz
Frequency deviation
± 13 kHz / ± 115.2 kHz
Modulation type
FSK
RF Output power @ 50Ω
+6 dBm
Sensitivity @ 50Ω
-100 dBm
Transmission speed
9600 baud / 230400 baud
* : at an ambient temperature of 25°C. All values are typical values unless otherwise specified.
Environmental conditions
Operating temperature range
0 ... 50°C
Storage temperature range
-30 ... +60°C
Protection class
IP50 ( CEI / IEC 529 )
Specific standards
CE conformity
Harmonised standard EN 300 220
FCC
FCC ID : T6T-604001

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Manual ISM–usb.1 / .2
2. Getting started
2.1 Delivered items
ISM-usb.1
PC - Radio station ISM-usb with integrated USB-connection cable, antenna, wall holder, manual
and CD-ROM containing USB-driver.
Please check the shipment for completeness and keep the packaging.
ISM-usb.2
PC - Radio station ISM-usb, antenna, mounting bracket for CD43 / CD70, manual and CD-ROM
containing USB-driver.
Please check the shipment for completeness and keep the packaging.
Note : For plugging on / removing the bracket for CD43 / CD70 the antenna can be unscrewed.
2.2 System requirements
PC with USB-interface and operating system Windows 2000 … Windows 10.
2.3 Installation of the USB - driver for the ISM-usb PC - Radio station
The driver installation package is located on the CD-ROMs ‚IBR Support Software‘ and
‚Software for Metrology and SPC‘ in the directory
<CDROM>:\USB-Driver\IMB-USB_RF1-USB\IMB-USB_RF1-USB_inst.exe.
The most recent version can be downloaded at http://www.ibr.com/download/IMB-USB_RF1-USB_inst.zip .
1.
When the driver installation package is started, the
installer asks for a directory where the driver files
shall be copied to :
2.
By clicking on Next, the installer copies the re-
quired files to the directory selected and automati-
cally opens the Device Driver Installation Wizard :

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Manual ISM–usb.1 / .2
2.4 Installation and initial operation of the IBR_SimKey PC software
1. Installation of IBR_SimKey
a) Please insert the CD ( that is included in the delivery of the ISM-usb PC - Radio station ) into
your CD –drive and open the folder IBR_Simkey or download the software from
http://www.ibr.com/download/IBR_SIMKEY.zip and extract the ZIP file.
b) Start the file IBR_SimKey_Inst.exe.
c) Follow the instructions displayed in the windows of the programme installer.
2. Starting IBR_SimKey
Initial operation of the software can take place directly after completion of the installation procedure.
In order to do so, leave the box Launch Program File checked and click the Finish - button.
3.
The Device Driver Installation Wizard asks you to
confirm the signature of the driver. You need to
allow the installation of the driver :
4.
When the driver installation is completed, the
Device Driver Installation Wizard shows you the
result of the driver installation :

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Manual ISM–usb.1 / .2
If the software has already been installed, you can start it by clicking on the icon IBR_SimKey V... in the
menu Start / Programms / IBR_SimKey. You can also start the software by double clicking its desktop
symbol ( icon ). It is named IBR_SimKey V... and is automatically created during installation of the
software.
On initial operation of the software or in case there was no PC - connection selected in the software,
you will receive the following message :
Please confirm the message box by clicking the OK - button.
Now, the window for interface settings and instrument selection shown below is automatically displayed.
Note : On initial operation of the software both the message box and the window shown above are displayed in the language
of the Windows operating system.
Now, please select the entry USB as setting for the PC-Connection. Afterwards please select the entry
IBR-ISM as setting for the IBR-Instrument.

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Manual ISM–usb.1 / .2
When the selections concerning the PC - connection and the IBR - instrument have been made, the
columns Connection and Gauge / Sensor are filled and displayed as shown below.
Note : If a (*) appears behind the entry IBR-ISM, then the ISM module was not found
( e.g. no driver installed, the IBR-ISM is used by another software, … ).
The gauge radio modules can be individually either activated or deactivated for operation with a
particular PC - Radio station. In order to do so, please click the on ( off ) - button of the radio module
concerned. The button is located directly on the right - hand side of the Gauge / Sensor column.
This programming possibility allows simultaneous operation of several PC - Radio stations with up to
120 radio modules. The addresses 121…499 can be assigned via the Setup buttons of the respective
channels.
By clicking on the OK - Button the settings are confirmed and the window is closed.
As a result, the display window of IBR_SimKey is opened and you can begin with transmission of
measurement data. The display window is shown below.
Now, measurement data can be transmitted to the PC by pressing the data key on the gauge
( if available ), or on the radio module.

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Manual ISM–usb.1 / .2
Description of the display window :
Address - Displays the sender - address of the last transmitted measurement dataset.
Measurement value - Displays the measurement value of the last transmitted measurement dataset.
Language - List of languages available for selection. Displays the current setting.
Resolution - List of resolutions available for measurement value display. Indicates the
current setting.
Additional texts - Opens a window that allows adjusting various format settings concerning the
measurement data that is to be transmitted. The settings have effect only on
measurement data made available for other software ( e.g. MS-Excel,
MS-Word, ... ), by using the keyboard buffer.
Setup - Opens the window for interface settings and instrument selection.
Quit - Closes the IBR_SimKey software.
Please note that there must be a ISM-usb PC - Radio station connected to the PC in order to
operate the IBR_SimKey software. Otherwise you will receive the following message :
3. Programming of gauge radio modules by using the IBR_SimKey
PC software
The individual programming of the gauge radio modules can be done by using the PC - software
IBR_SimKey. All chosen settings are stored in the gauge radio modules and are preserved even if the
module’s batteries are exchanged.
Click on the Setup - button in the main window of the IBR_SimKey PC - software ( display window )
in order to program the radio modules. As a result, the window for interface settings and instrument
selection will be opened automatically. Please click the Service - button of this window in order to access
the programming window. It is displayed below.

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Manual ISM–usb.1 / .2
In the upper left - hand area of the programming window you can find the selection column containing the
commands available for programming. The selection column containing the appropriate parameters is
located directly to the right of it.
For programming please select the command to be executed and then the desired parameter. By clicking the
OK - Button the chosen command is loaded into the transmission buffer. Now, please press the data key of
the radio module which is to be programmed, in order to trigger measurement data transmission. On the end
of the measurement data transmission the PC - Radio station sends the chosen command from the
transmission buffer to the gauge radio module. The radio module confirms successful programming by a short
tone sequence and a triple flash of the green LED.
Overview of commands for programming gauge radio modules :
Command Description Values ( range )
Set factory settings
Resets all adjusted parameters back to factory
settings. These are marked by a (*) in the parameter
list.
-----
Set Module Address
Serves to select the sender address of the radio
module that is to be programmed.
Note : Please use only addresses 1…499 for
measurement operation !
From 1 to 500.
Permanent Mode - Value number
( IBRit-rf1 legacy mode )
Defines how many measurement data records are to
be transmitted automatically in the Permanent Mode.
The Permanent Mode is started by pressing the data
key on the radio module.
Note: Using the Permanent Mode can reduce the
lifetime of the module's battery.
From 0 to 255
values.
Permanent Mode - Interval time
( IBRit-rf1 legacy mode )
Defines with which time interval the data records are
to be transmitted automatically in the Permanent
Mode.
Note: Using the Permanent Mode can reduce the
lifetime of the module's battery.
From 1 to 256
seconds.
Transmission confirmation ( o.k. ) -
Flash-Time ( green )
Defines the period of time during which the green
LED is lit ( on transmission confirmation by the radio
module ).
From 0 to 2150
milliseconds.
Transmission confirmation ( o.k. ) -
Beep-Time
Defines the period of time during which the buzzer
beeps ( on transmission confirmation by the radio
module ).
From 0 to 250 /
frequency.
Transmission confirmation ( o.k. ) -
Beep-Frequency
Defines the beep tone - frequency of the buzzer beep
( on transmission confirmation by the radio module ).
From 500 to
2000 Hz.
Transmission error -
Flash-Time ( red )
Defines the period of time during which the red LED
is lit ( on error signal by the radio module ).
From 0 to 2150
milliseconds.
Transmission error -
Double-Beep-Time
Defines the period of time during which the buzzer
beeps once ( on error signal by the radio module ).
From 0 to 250 /
frequency.
Transmission error -
Double-Beep-Frequency
Defines the beep tone - frequency of the buzzer beep
( on error signal by the radio module ).
From 500 to
2000 Hz.
Continued on next page.

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Manual ISM–usb.1 / .2
Overview of commands for programming gauge radio modules ( continuation ) :
Command Description Values ( range )
Time delay for data request
Defines the time delay between the triggering of the
measurement data request ( e.g. by pressing the data
key on the radio module ) and the real take-over of
the measurement value from the gauge. By using this
option it is possible to avoid distortion of the
measurement value by moving the gauge on pressing
the data key.
From 0 to 2.4
seconds.
Time offset on synchr. Triggering
Defines the offset time between the measurement
data transmission of several simultaneously triggered
radio modules. By using this option it is possible to
avoid overlapping of measurement data
transmissions. 10 milliseconds offset time between
the individual radio modules transmissions can be
considered sufficient. The setting would in that case
be "0 msec" for module 1, "10 msec" for module 2,
"20 msec" for module 3 and so on.
From 0 to 250
milliseconds.
Request char. for Opto-RS232
This setting has effect only on the measurement data
request of the gauge radio modules with Opto-RS232
interface. Any character or a "Simplex Impulse" can
be set for measurement data request. Please refer to
the manual of your gauge in order to find the correct
setting in your case.
-----
External data request mode
Activates / deactivates the mode for external data
request. This mode is only available for the radio
modules ISM-Dial and IBRit-rf1-Dial. With other radio
modules the use of this mode will result in an error.
on / off
Send battery voltage
After the next measuring value the voltage of the
battery in V will be transmitted additionally ( only
supported by ISM modules ).
-----
RF data rate
This option allows you to switch between 9600 Baud
and 230400 Baud. ( see page 12 / 13 )
( only supported by ISM modules; the ISM modules
must be set to address 500 for the switching )
9600 Baud /
230400 Baud
Example : Programming of a new radio module address ( sender )
1. Command : Click on Set Module Address
2. Parameter : Select an address between 1and 500
3. Set command into transmission buffer : Click on OK - Button
4. Press the data key of the radio module which is to be programmed, in order to trigger
measurement data transmission
5. The radio module confirms successful programming by a short tone sequence and a
triple flash of the green LED

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Manual ISM–usb.1 / .2
ISM Permanent Mode :
Additionally you can change the data transmission rate of the ISM radio modules from 9600 baud
230400 baud ( see table on page 11 RF data rate ). With this data transmission rate the ISM Permanent
Mode can be used which allows you to transmit measuring values automatically every time the
value changes.
Advantages of the 230400 Baud data rate : a ) approximately 1 million instead of only 200.000
transmissions possible, before the
batteries run out
b ) ISM Permanent Mode can be used
Disadvantages of the 230400 Baud data rate : a ) not IBRit-rf1 compatible
b ) only approximately 60% range in comparison
with 9600 Baud
Please note that the change of the data transmission rate is only possible if the address of the radio
module has been set to 500 before ( see page 11 ). After the change of data rate the address can be
switched back to the old value again.
After changing the data transmission rate of the ISM radio modules, it has to be also changed for the
ISM - usb, so that the ISM-usb will be able to receive the values from the radio modules and change
their settings.
To do this, please click in the hardware setup on one of the Setup buttons on the right side :

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Manual ISM–usb.1 / .2
The following window will open. There you can select the required data transmission rate :
Note : This is the setting for the radio receiver. Because of this the RF data rate has to be changed
in the setup window of one address only.
After changing the data transmission rate of the ISM - usb to 230400 baud, the following additional
commands become available in the Service window :
Note : The following commands are not relevant for the radio module ISM-3i, because it is
controlled by the sensor display SD1.
Command
Description
Values ( range )
ISM-
cab1
prox
mit1
opto
mahr
dk
s233
ISM-
ISi
ISM Permanent Mode
- Maximum data rate
This determines the maximum data rate
for the transmission of the measuring
values. The maximum data rate should
not exceed 2 Hz for the mentioned radio
modules, because else the battery life
will be shortened too much.
The ISM-ISi always works with 10 Hz.
0.5 to 5 Hz


- Switch mode on/off by
pressing button
This determines how the Permanent
Mode can be activated / deactivated at
the radio module.
off / short / long


- Timeout for mode auto
disable
This determines the time for the auto-
matic deactivation of the Permanent
Mode. Relevant is the time without
change of the measuring value.
0 to 255 min
( 0 = no automatic
deactivation )


- Additional automatic
data transmission
This determines the interval in which the
radio module automatically sends a
value, even if the measuring value has
not changed.
( The time for the automatic deactivation
is not influenced by this. )
0 to 255 sec
( 0 = no data
transmission
without change
of the measuring
value )


Continued on next page.

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Manual ISM–usb.1 / .2
Overview of commands ( continuation ) :
Command
Description
Values ( range )
ISM-
cab1
prox
mit1
opto
mahr
dk
s233
ISM-
ISi
- Threshold for starting
the data transmission
This determines how big the change of
the measurement value must be to end
the idle mode.
off /
0,8 to 204 µm


- Stabilisation time for
ending the data
transmission
This determines the time after that the
radio module changes to the idle
mode (*), if the value has not changed.
off /
0.1 sec to
25.5 sec


- Send mea. value after
stabilisation
This determines the maximum number
of retries to send a last value after the
stabilisation of the measuring value until
a confirmation is received.
If the radio module has not received a
confirmation after this number of retries,
it gives an error message.
with 0 to 255
retries
( 0 = no
verification and
no error
message )


(*)Note : In the data transmission mode, 10 measuring values / sec are requested by the ISM-ISi.
In the idle mode no measuring values are transmitted and only 2 measuring values / sec are
requested by the ISM-ISi.
4. Confirmation signals of the gauge radio modules
The gauge radio modules always return a clear optical and acoustical confirmation to the
operator on programming or measurement data transmission. Hence, the operator is immediately
informed whether the transmission was successful or not.
If the transmission was not successful, then the Morse - flashing code of the LED informs the operator
about the cause of error.
The following table explains the confirmation signals returned by the gauge radio modules:
LED
Buzzer
Meaning
1 x green
1 x short
Data transmission successful
1 x red
2 x long
Faulty radio transmission
2 x red
2 x long
Timeout Error on reading the measurement value from the gauge
3 x red
2 x long
Spike on the data line of the Opto-RS232 interface
4 x red
2 x long
No stop-bit from the Opto-RS232 interface
5 x red
2 x long
Parity - error from the Opto-RS232 interface
6 x red
2 x long
Input buffer overflow on the Opto-RS232 interface
7 x red
2 x long
Undefined data format on the Opto-RS232 interface
8 x red
2 x long
Write error on EEPROM access
9 x red
2 x long
Read error on EEPROM access
Note :
Further measurement data cannot be transmitted until the error message has ended !!!

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Manual ISM–usb.1 / .2
ISM-3i
Since the ISM-3i has no LED and Buzzer, one of the following messages is displayed on the LCD of the
measuring instrument if an error occurs :
LCD
Meaning
rF-Err.1
Faulty radio transmission
rF-Err.2
Timeout Error on reading the measurement value from the gauge
5. Signal strength measurement
The ISM-usb radio receiver can do an RSSI measurement ( Received Signal Strength Indicator ).
By this the signal strength of radio or interference signals can be measured which might exist in the
frequency range of the ISM or IBRit-rf1 radio modules.
Please use the latest versions of our USB driver and the IBR_SimKey software for the test
( see chapter 2.3 and 2.4 ).
Start the IBR_SimKey software and open the dialogue to configure the connected IBR hardware.
Please select USB as PC-Connection and IBR-ISM as IBR-Instrument. Then click the Service button to
enter the service dialogue of the IBR-ISM module :
The service dialogue of the IBR-ISM radio receiver opens :

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Manual ISM–usb.1 / .2
Now, please click Spectrum analysis to start the RSSI analysis :
The dialogue shows the current signal strengths in the used frequency range. In this way you can see if
there are additional radio signals in the frequency range which might prevent the radio receiver from
receiving the measuring values or superimpose its radio signal. If this is the case, please try to place the
radio receiver in an area without interferences.
The example above shows the background noise on all frequencies and a weak signal at about
434.4 MHz. Both will in this strength not influence the receiving of values from the ISM or IBRit-rf1 radio
modules.
But a stronger signal might interfere with the communication, even if it is at 434.4 MHz.
Note : Because the communication between ISM or IBRit-rf1 radio transmitter and radio receiver is
bidirectional, you should additionally do an RSSI measurement in the work area of the radio
transmitter. In this way you can determine if there are radio signals that could interfere with
the communication between transmitter and receiver.

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Manual ISM–usb.1 / .2
6. Important conditions concerning the use of IBR_SimKey PC software
1. The IBR_SimKey software is an accessory for the IBRit-rf1-usb or ISM-usb PC - Radio station. It is
free of charge and so IBR does not give any guarantees for the IBR_SimKey software.
2. IBR software products are not developed and tested for the high demands in the medical field, in
combination with applications in the medical field or in critical components of life-saving systems
whose malfunctions or failure can lead to personal injury.
3. On absolutely all applications the stability of the software can be influenced by different factors, e.g.
fluctuations in the power supply, computer hardware errors, operating system errors, compiler errors,
application development software errors, installation errors, software and hardware compatibility
problems, malfunctions or errors of electronic supervisory systems and controller units, transmission
errors within electronic systems ( hardware and/or software ), unintended use or misuse as well as
errors by the operator or system developer ( harmful influences such as the factors mentioned above
are in the following referred to as “SYSTEMERRORS” ).
4. All applications which contain the risk that SYSTEMERRORS can lead to damages or personal inju-
ries should not only depend on electronic systems. In order to avoid damages, injuries or death the
operator or system developer should create reasonable, suitable precautions against
SYSTEMERRORS or their consequences. These precautions can include backup or shutoff
mechanisms.
5. Because all computer systems are adapted for the operator the systems are different in comparison
with the IBR test systems. Because the IBR products can also be integrated in applications not tested
or not intended in this way by IBR the operator or system developer is completely responsible for the
test and release of the applications in which IBR products are embedded. This contains the structure,
the procedure and the security level of the application.
6. In no event IBR will be liable for any damages including lost profits or any special, indirect, incidental
or consequential damages arising out of the use or inability to use the product, whether claimed under
the safety instructions or otherwise.
7. Corporate guidelines and safety regulations enforced by the industrial trade associations for the pre-
vention of industrial accidents must be strictly observed. Make sure to consult the safety officer at your
company.
8. All rights depend on German law.
9. All rights for the IBR_SimKey software belong to IBR Messtechnik GmbH & Co. KG

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Manual ISM–usb.1 / .2
7. Safety Instructions
The instrument has been designed and manufactured according to the state of the art and approved
technical safety regulations. It is nevertheless mandatory to observe the following instructions in order to
prevent personal injuries or accidental death of staff members and other persons.
1) All operators must read the present instructions and this manual very carefully prior to starting
operation.
2) The instrument may be used only in proper operational condition. Malfunctions or errors that may
potentially impair the operational safety must be eliminated immediately.
3) The instrument is to be used only for its intended purpose and according to the Instruction Manual.
The Instruction Manual is to be kept near the place of operation and ready for use.
4) Any modification to or change in procedures concerning the instrument is permitted only with the prior
written consent of IBR Messtechnik GmbH & Co. KG and must be carried out by trained staff. Unau-
thorised opening of the instrument or tampering with the device shall void the guarantee and exempt
the manufacturer from any liability. Before opening the instrument, make sure to effectively cut the
power supply, e.g. by disconnecting the power cable.
5) Disconnect the instrument prior to cleaning.
Never let any liquids penetrate the inside of the instrument.
Do not use cleaners that dissolve plastic.
6) Replace faulty fuses only with fuses of identical amperage and current characteristics following the
instructions given in this manual.
7) Corporate guidelines and safety regulations enforced by the industrial trade associations for the
prevention of industrial accidents must be strictly observed. Make sure to consult the safety officer at
your company.
8) Do not operate the instrument in an environment containing explosive gases, because an electric spark
can cause an explosion.
We reserve the right to change the design and technical data contained in our documentation without
notifying our customers. IBR is not obliged to notify buyers of product changes.
IBRit is a registered trademark of IBR.
Windows, EXCEL and Word are registered trademarks of Microsoft Corporation.
This document must not be reproduced, in part or in its entirety, without the prior written consent from IBR.

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Manual ISM–usb.1 / .2
8. Declaration of conformity
Thank you very much for your confidence in purchasing this product. We herewith certify that it was
manufactured and inspected in our works.
We declare under our sole responsibility that this product is in conformity with technical data as specified in
this instruction manual.
Furthermore, we certify that the measuring equipment used to check this product refers to national master
standards. The trace ability of measuring values is guaranteed by our Quality Assurance System.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions.
This device may not cause harmful interference, and this device must accept any interference received,
including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception, which can
be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures :
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
Important Notice :
This device complies with Part 15 of the FCC Rules
Operation is subject to the following two conditions :
1. This device may not cause harmful interference
2. This device must accept any interference received, including interference that may cause undesired
operation.
Warning : Changes or modifications made to this equipment not expressly approved by IBR may void the
FCC authorization to operate this equipment.

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Manual ISM–usb.1 / .2
9. Guarantee
The quality of this instrument is guaranteed for a period of 12 months from the date of delivery. This
guarantee covers all material and manufacturing defects.
Our liability is limited to product repair services or, should we deem it necessary, replacing or crediting the
goods.
This guarantee does not include the batteries or damage due to:
Disregard of operating instructions
Incorrect handling
Tampering by unauthorised staff
Attempts by any unauthorised person to repair the instrument.
We are not to be held liable for any subsequent damage caused by, directly or indirectly, the
instrument or its use.
Notice : If you are returning the instrument under guarantee, please use the original packaging.
Should you detect an irregularity of any kind, please contact one of our authorised distributors or our
service department.
D-36166 Haunetal, May 3rd, 2019
I B R Messtechnik GmbH & Co. KG