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Bluetooth profiles

My measuring device is not listed as connectable on my master (PC, tablet, smartphone)

Check if the device is in advertising mode (Bluetooth symbol blinking), if your master has a compatible Bluetooth module (revision…

Check if the device is in advertising mode (Bluetooth symbol blinking), if your master has a compatible Bluetooth module (revision 4.0 or later) and operating system (at least Windows 7, OS X 10.9, iOS 6.0, Android 4.4).

Posted 2 years ago

My master can find and connect the instrument in HID mode, but it is unable to use it

Some older systems (e.g. Windows 7) sometimes need to update the drivers of their Bluetooth modules to ensure compatibility with…

Some older systems (e.g. Windows 7) sometimes need to update the drivers of their Bluetooth modules to ensure compatibility with Bluetooth Low Energy HID devices. Look for an updated driver package for your wireless module.

Posted 2 years ago

My master device receives strange characters when using the HID profile

Check the keyboard layout used by your master device. Sylvac instruments are designed to work with English (US) keyboards. Other…

Check the keyboard layout used by your master device. Sylvac instruments are designed to work with English (US) keyboards. Other keyboard layouts might work too, but some keyboard layouts (e.g. French) do not produce correct values, e.g.+008.521 <

Posted 2 years ago

The values from my measuring device with HID profile are transmitted correctly but followed by additional non-numerical characters

Make sure to use an English (US) keyboard layout for best compatibility. In tolerance mode the device transmits the tolerance…

Make sure to use an English (US) keyboard layout for best compatibility. In tolerance mode the device transmits the tolerance judgement using additional characters.

Posted 2 years ago

I installed the English (US) keyboard layout on my master device, but I still get strange characters from the HID device

Check the enabled keyboard layout. Some systems (e.g. Windows) can handle a different keyboard layout for each program or application;…

Check the enabled keyboard layout. Some systems (e.g. Windows) can handle a different keyboard layout for each program or application; others (e.g. Android) use a keyboard layout per input device.

Posted 2 years ago

My master device shows strange behavior every time a value is sent from an HID device

The values from Sylvac Bluetooth devices in HID mode are transmitted like keystrokes from an external keyboard. They are received…

The values from Sylvac Bluetooth devices in HID mode are transmitted like keystrokes from an external keyboard. They are received and interpreted by the currently active application. If keystrokes are received by an application that is not designed to display text, behavior is unpredictable. Make sure to put the text input cursor in the application that should receive the value before sending it.

Posted 2 years ago

The range of my Bluetooth connection is very short

Several factors can influence the achievable range of a Bluetooth connection, e.g. large metallic parts, walls or other wireless devices.…

Several factors can influence the achievable range of a Bluetooth connection, e.g. large metallic parts, walls or other wireless devices. If you use a Bluetooth low energy dongle, do not place it next to any USB 3.0 device, this might cause interferences and considerably shorten the range of your connection.

Posted 2 years ago

The measuring device displays error codes

See below for error codes, possible reasons and trouble-shooting Err.bt 0: Current consuming connection parameters. Battery life might be reduced.…

See below for error codes, possible reasons and trouble-shooting


Err.bt 0: Current consuming connection parameters. Battery life might be reduced. Press any key to acknowledge this error.
Err.bt 1: General Bluetooth error. Disconnect and reconnect the device.
Err.bt 2: Bluetooth initialization error. Restart the device.
Err.bt 4: Bluetooth memory error. Disconnect and reconnect the device.
No.data: Value could not be sent via Bluetooth® Technology. Check the Bluetooth® connection on instrument and master device (on/off). Check if you are within the max. transmission range 5-15m.
No.bt: Bluetooth module is not connected. Connect to a compatible master device.
-----: Initialization in progress. Message disappears automatically. Press a button if no value is displayed after five seconds.
Err.0: Sensor error. Press SET key.

Posted 2 years ago

The Vmux or Sylcom software does not connect my measuring device

Make sur your measuring device uses Simple or Paired profile (not HID). Check for updates on www.sylvac.ch. Vmux v1.43 and…

Make sur your measuring device uses Simple or Paired profile (not HID). Check for updates on www.sylvac.ch. Vmux v1.43 and Sylcom v1.3.1 or later are compatible with all Sylvac Bluetooth devices.

Posted 2 years ago

The on-screen keyboard disappears when connecting a measuring device in HID mode

In HID mode, Sylvac measuring devices behave like a Bluetooth keyboard. Therefore most platforms disable the on-screen keyboard. On some…
In HID mode, Sylvac measuring devices behave like a Bluetooth keyboard. Therefore most platforms disable the on-screen keyboard. On some of them (e.g. Android) this behaviour can be changed, whereas on others (e.g. iOS) the on-screen keyboard cannot be used together with an external keyboard.
Posted 2 years ago