background image

1

© 2014 Velleman NV

Introduction

1

Introduction

WFS

210

2CH wlan Digital Storage Oscilloscope

The Velleman 

WFS210

 is the world’s first Wlan dual channel digital storage oscilloscope geared

towards tablet computers, it's a compACt, portable, battery powered, fully featured two channel
oscilloscope. As opposed to traditional oscilloscopes, it does not feature a screen.

Instead of a built-in screen it uses your tablet iOS, Android

TM

 or PC (Windows) to display the

measurements. Data exchange between the tablet and the oscilloscope is via Wlan, there are no
cables. The idea behind the concept is that almost every hobbyist, student or engineer owns a
tablet, so why pay more for an oscilloscope with a built-in screen, if you can use your tablet. Also,
as there is no physical connection between the oscilloscope and the tablet, it is a very safe
instrument to use. Due to the wireless principle, the oscilloscope and the ‘screen’ do not need to be
at the same location.

Regular oscilloscopes are usually button-pACked and complex to use. Not this one. All controls are
performed by means of gestures you normally use with tablets such as swiping, pinching, etc… It is
also very easy to take screenshots. The communication protocol between the oscilloscope and the
tablet is freely available, so it is easy for third-party developers to develop applications for other
purposes. Finally, it is equipped with a USB port for charging of the internal battery. When fully
charged, it runs up to 10 hours continuously. If desired, it can also connect to a PC via the USB
port, instead of wireless.

Summary of Contents for WFS210

Page 1: ...2014 Velleman NV WFS210 2CH WLAN DIGITAL STORAGE OSCILLOSCOPE WFS210 help manual for use with the PC tablet...

Page 2: ...oscilloscope 6 6 1 Indications 7 2 Connections 7 3 Charging the battery Part IV PC application 8 8 1 Overview 8 2 Menu options 9 3 Indications 9 4 Software controls 11 5 Trigger level Part V Tablet ap...

Page 3: ...3 2014 Velleman NV Contents 19 14 T 19 15 V 20 16 W...

Page 4: ...artment with over 30 years of technical knowledge sales to do it yourself shops and mass distribution of the Perel brand sales to electronics stores export department common industrial products depart...

Page 5: ...ope with a built in screen if you can use your tablet Also as there is no physical connection between the oscilloscope and the tablet it is a very safe instrument to use Due to the wireless principle...

Page 6: ...input impedance 1Mohm input coupling AC DC and GND AD resolution 8 bit sample buffer 4K channel readouts Vdc Vmin Vmax Vpp Vrms Vtrms dBm dBgain Wrms2 Wrms4 Wrms8 Wrms16 Wrms32 power consumption batt...

Page 7: ...easons it is important to know some information about the measured unit Safe devices are Battery operated equipment Equipment supplied via a transformer or adapter Unsafe devices are Equipment directl...

Page 8: ...10 setting when high or unknown voltages or high impedances need to be measured e g our PROBE60S type When using the measuring probe in the X10 position the measuring impedance will increase to 10Mohm...

Page 9: ...pulse rise or fall times To avoid such errors always compensate probes right after connecting them to the oscilloscope and check compensation frequently If your probe has a compensation network you sh...

Page 10: ...n the connection is successful with the tablet PC App connection indicates when there is connection over the WLAN network with the tablet PC application Power on off USB Charger connected Caution Prob...

Page 11: ...nd controls 1 BNC input connector channel 1 2 BNC inpuit connector channel 2 3 Power on off 4 USB charger connection 5 Reset SSID WLAN 6 Probe compensation testpoint 3 3 Charging the battery It is rec...

Page 12: ...rview 4 2 Menu options File menu Connect Connect the software application htrough USB or WLAN with the scope module Exit Terminates the program Tools menu WLAN settings SSID Change the name of the WLA...

Page 13: ...d i e the input voltage is lower than the trigger level and exceeds the trigger level Arrow down the signal will only appear when a falling slope is detected i e the input voltage is higher than the t...

Page 14: ...adout Vdc This functon enables the user measure DC voltages only for DC input coupling Vmin The signal s negative peak voltage difference between zero and lowest value is displayed Vmax The signal s p...

Page 15: ...11 2014 Velleman NV PC application 4 5 Trigger level TRIGGER Level Selects the signal level at which the sweep is triggered...

Page 16: ...12 PC application 2014 Velleman NV 5 Tablet application 5 1 WFS210 application ios Android Search for the WFS210 application...

Page 17: ...man NV Tablet application 5 2 Measuring with Apple Android 1 Power on the WFS210 oscilloscope 2 Slow blinking creation of an access point successful 3 Connect your tablet with the WLAN access point Ap...

Page 18: ...n NV 4 Connect the Oscilloscope to a signal source 5 Tap on the WFS210 app to open it 6 The LED lights when the applications have been successfully connected to the WFS210 scope 7 The scope is now rea...

Page 19: ...nal swing in a direction Expressed in mV or V For repetitive signals Vpeak Vpp ANALOG Analog scopes use the incoming signal to deflect an electron beam which scans from left to right on the screen The...

Page 20: ...e dB can be used to express the absolute level of the physical quantity The decibel is also commonly used as a measure of gain or attenuation the ratio of input and output powers of a system or of ind...

Page 21: ...d undershoot from measurement FREQUENCY F The number cycles of the AC waveform per sec 6 7 G GRATICULE The grid lines on a screen for measuring oscilloscope traces GROUND A conducting connection by wh...

Page 22: ...orage oscilloscope to trigger PROBE An oscilloscope input device usually having a pointed metal tip for making electrical contact with a circuit element a lead to connect to the circuit s ground refer...

Page 23: ...input of the oscilloscope The subject of your measurement SINE WAVE Mathematical function that represents a smooth repetitive oscillation The waveform shown at the start of this glossary is a sine wav...

Page 24: ...nt of heat in a resistor as the AC source would do For sinusoidal signals Vrms Vpp sqrt 2 6 16 W WAVE The generic term for a pattern that repeats over time Common types include sine square rectangular...

Page 25: ...ght Velleman Misprinting and modifi cations in images and text reserved Legen Heirweg 33 B 9890 GAVERE Belgium Europe Phone number 32 0 9 384 36 11 Fax Velleman 32 0 9 389 93 35 web www vellemanprojec...

Reviews: