TiePie engineering WS6D WiFiScope DIFF Instruction Manual
- June 14, 2024
- TiePie engineering
Table of Contents
TiePie engineering WS6D WiFiScope DIFF
Product Information
Product Name: WiFiScope WS6 DIFF
The WiFiScope WS6 DIFF is a USB network device that operates on battery power.
It is manufactured by TiePie engineering.
Contents of User Manual
- Welcome
- Safety
- Declaration of conformity
- Introduction
- Differential input
- SafeGround on each channel
- Differential attenuators
- Differential test lead
- Sampling
- Sampling rate
- Aliasing
- Digitizing
- Signal coupling
- Probe compensation
- Driver installation
- Introduction
- Computers running Windows 10
- Computers running Windows 8 or older
- Where to find the driver setup
- Executing the installation utility
- Hardware installation
- Power the instrument
- Charging the battery
- Long term storage
- Instrument operation mode
- Connect via LAN
- Connect via WiFi
- The computer/laptop has WiFi
- The computer/laptop has NO WiFi
- Connect via USB
- Plug into a different USB port
- Operating conditions
- Instrument ground compensation
- Ground compensation cable
- When using the ground compensation cable
- When is the ground compensation not required
- Why ground compensation?
- Combining and synchronizing instruments
- Front panel
- Channel input connectors
- Power/Mode button
- Status indicators
- Status
- LAN
- WiFi
- USB
Product Usage Instructions
Hardware Installation
- Power the instrument by connecting it to a power source.
- To charge the battery, follow the instructions provided in section 6.1.1 of the user manual.
- If storing the instrument for a long period, refer to section 6.1.2 for proper storage guidelines.
- Set the instrument operation mode according to your requirements (refer to section 6.2).
- To connect via LAN, follow the instructions provided in section 6.3.
- To connect via WiFi:
- If your computer/laptop has WiFi capability, refer to section 6.4.1.
- If your computer/laptop does not have WiFi capability, follow the instructions in section 6.4.2.
- To connect via USB, plug the instrument into a USB port (refer to section 6.5).
- If experiencing issues, try plugging into a different USB port (refer to section 6.5.1).
- Ensure that the instrument is operated within the specified operating conditions (refer to section 6.6).
Instrument Ground Compensation
- If required, use the ground compensation cable as described in section 7.1 of the user manual.
- Follow the instructions provided in section 7.2 when using the ground compensation cable.
- The ground compensation may not be required in certain situations (refer to section 7.3).
- Section 7.4 explains the importance of ground compensation.
Combining and Synchronizing Instruments
For information on combining and synchronizing instruments, refer to
section 8 of the user manual.
Front Panel
Familiarize yourself with the front panel features, including channel input
connectors, power/mode button, and status indicators (refer to section 9 of
the user manual).
WiFiScope WS6 DIFF
User manual
USB Network
WiFi Battery power
TiePie engineering
ATTENTION! Measuring directly on the line voltage can be very dangerous.
Copyright ©2023 TiePie engineering. All rights reserved. Revision 2.44,
October 2023 This information is subject to change without notice. Despite the
care taken for the compilation of this user manual, TiePie engineering can not
be held responsible for any damage resulting from errors that may appear in
this manual.
Wireless measuring has now become a reality with the WiFiScope WS6 DIFF. If a large distance needs to be bridged between the measuring instrument and the PC, the WiFiScope WS6 DIFF is the solution for this. Fast measurements and high speed data acquisition are now possible wherever the WiFiScope WS6 DIFF is located in the world.
· Because the WiFiScope WS6 DIFF is battery-powered, it can be used standalone
for a long time.
· For measurements in hazardous situations or places where it is not
accessible to people for long, the WiFiScope WS6 DIFF offers the solution.
· A connection via WiFi or Network (LAN or WAN with possibly POE) gives the
user the possibility to place the measuring instrument where this was
previously not possible.
· Collecting and viewing measurement data from different locations on a PC /
Laptop is now a possibility because the software supports more WiFiScopes at
the same time.
· With the very extensive software package, most measurements can be
performed.
· A large library of presets is available so that a novice user can
immediately perform advanced measurements with a few mouse clicks.
· The WiFiScope WS6 DIFF has 4 input channels with a maximum sampling rate of
1 GSa/s and a bandwidth of 250 MHz.
· With a WiFi connection, the WiFiScope WS6 DIFF is no longer directly
connected to the PC or laptop and short circuits are excluded, this eliminates
the fear that something will happen to the PC or Laptop.
· A big advantage of the WiFiScopes is that no ground loops can occur. In
traditional measurement systems, ground loops give many problems, resulting in
unreliable measurement results. With the WiFiScope, because of the absence of
ground loops, long distance remote measurements are possible without the
results being influenced by ground loops. Also on short distances the absence
of ground loops is important for performing reliable measurements. The
WiFiScope prevents ground loops from forming so that the measurement speed and
resolution are not affected and the measurements remain reliable.
· Integrating the WiFiScope WS6 DIFF in your own software environment is
supported by an API with examples so that the WiFiScope WS6 DIFF can be widely
used
· Thanks to a very good hardware structure and advanced software drivers, the
WiFiScope WS6 DIFF is suitable for high speed data acquisition up to speeds of
5 MSa/s and measurements up to 1 GSa/s with a record length of 256 MSamples of
memory per channel with a resolution of 12 to 16 bit.
Welcome
1
2
Chapter 1
Safety
2
When working with electricity, no instrument can guarantee complete safety. It is the responsibility of the person who works with the instrument to operate it in a safe way. Maximum security is achieved by selecting the proper instruments and following safe working procedures. Safe working tips are given below:
· Always work according (local) regulations.
· Work on installations with voltages higher than 25 VAC or 60 VDC should only
be performed by qualified personnel.
· Avoid working alone.
· Observe all indications on the WiFiScope WS6 DIFF before connecting any
wiring
· Check the probes/test leads for damages. Do not use them if they are damaged
· Take care when measuring at voltages higher than 25 VAC or 60 VDC. · Do not
operate the equipment in an explosive atmosphere or in the pres-
ence of flammable gases or fumes.
· Do not use the equipment if it does not operate properly. Have the equipment
inspected by qualified service personal. If necessary, return the equipment to
TiePie engineering for service and repair to ensure that safety features are
maintained.
Safety 3
Declaration of conformity
TiePie engineering Koperslagersstraat 37 8601 WL Sneek The Netherlands
EC Declaration of conformity
We declare, on our own responsibility, that the product
WiFiScope WS6 DIFF-1000(XM/E/S/G) WiFiScope WS6 DIFF-500(XM/S/G) WiFiScope WS6
DIFF-200(XM/S/G)
3
for which this declaration is valid, is in compliance with
EC directive 2011/65/EU (the RoHS directive) including up to amendment
2021/1980,
EC regulation 1907/2006 (REACH) including up to amendment 2021/2045,
and with
EN 55011:2016/A1:2017 EN 55022:2011/C1:2011
IEC 61000-6-1:2019 EN IEC 61000-6-3:2007/A1:2011/C11:2012 EN
according the conditions of the EMC standard 2004/108/EC,
also with
Canada: ICES-001:2004
Australia/New Zealand: AS/NZS CISPR 11:2011
and
IEC 61010-1:2010/A1:2019 USA: UL 61010-1, Edition 3
and is categorized as 30 Vrms, 42 Vpk, 60 Vdc
Sneek, 1-9-2022 ir. A.P.W.M. Poelsma
Declaration of conformity
5
FCC statement
FCC 15.119
This device complies with Part 15 of FCC Rules. Operation is Subject to
following two conditions:
1. This device may not cause harmful interference, and 2. This device must
accept any interference received including interference
that cause undesired operation.
FCC 15.105
This equipment has been tested and found to comply within 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
different circuit from that to
which the receiver is connected. · Consult the dealer or an experienced
radio/TV technician for help.
Any changes or modifications not expressly approved by TiePie engineering can
void the authority to operate equipment.
This equipment complies with FCC radiation exposure limits set forth for an
uncontrolled environment. This equipment should be installed and operated with
minimum distance of 20 cm between the radiator and your body
Environmental considerations
This section provides information about the environmental impact of the
WiFiScope WS6 DIFF.
End-of-life handling
Production of the WiFiScope WS6 DIFF required the extraction and use of
natural resources. The equipment may contain substances that could be harmful
to the environment or human health if improperly handled at the WiFiScope WS6
DIFF’s end of life.
In order to avoid release of such substances into the environment and to
reduce the use of natural resources, recycle the WiFiScope WS6 DIFF in an
appropriate system that will ensure that most of the materials are reused or
recycled appropriately.
6
Chapter 3
The shown symbol indicates that the WiFiScope WS6 DIFF complies with the European Union’s requirements according to Directive 2002/96/EC on waste electrical and electronic equipment (WEEE).
Declaration of conformity
7
8
Chapter 3
Introduction
4
Before using the WiFiScope WS6 DIFF first read chapter 2 about safety.
Many technicians investigate electrical signals. Though the measurement may
not be electrical, the physical variable is often converted to an electrical
signal, with a special transducer. Common transducers are accelerometers,
pressure probes, current clamps and temperature probes. The advantages of
converting the physical parameters to electrical signals are large, since many
instruments for examining electrical signals are available.
The WiFiScope WS6 DIFF is a portable four channel measuring instrument with
differential inputs. It can be connected to the computer via USB, wired
ethernet and WiFi. When used via WiFi, the WiFiScope WS6 DIFF can be connected
to an existing WiFi network or can act as access point to create its own WiFi
network.
The WiFiScope WS6 DIFF is equipped with a built-in battery for wireless
operation, but can also be powered by an external power supply (incluced in
the package) or via the USB interface.
It is available in several models with different maximum sampling rates. The
native resolutions are 8, 12 and 14 bits and a user selectable resolution of
16 bits is available too, with adjusted maximum sampling rates:
Measuring
Resolution Channels
1 ch
8 bit
2 ch
3 or 4 ch
1 ch
12 bit
2 ch
3 or 4 ch
14 bit
1 to 4 ch
16 bit
1 to 4 ch
WS6-1000 1 GSa/s
500 MSa/s 200 MSa/s 500 MSa/s 200 MSa/s 100 MSa/s 100 MSa/s 6.25 MSa/s
Model WS6-500 500 MSa/s 200 MSa/s 100 MSa/s 200 MSa/s 100 MSa/s 50 MSa/s 50 MSa/s 3.125 MSa/s
WS6-200 200 MSa/s 100 MSa/s
50 MSa/s 100 MSa/s
50 MSa/s 20 MSa/s 20 MSa/s 1.25 MSa/s
Table 4.1: Maximum sampling rates
Introduction
9
The WiFiScope WS6 DIFF supports high speed continuous streaming measurements. The maximum streaming rates when connected to a USB 3.0 port are:
Measuring
Resolution Channels
1 ch
8 bit
2 ch
3 or 4 ch
1 ch
12 bit
2 ch
3 or 4 ch
1 ch
14 bit
2 ch
3 or 4 ch
16 bit
1 to 4 ch
WS6-1000 200 MSa/s1 100 MSa/s2
50 MSa/s3 100 MSa/s2
50 MSa/s3 25 MSa/s4 100 MSa/s2 50 MSa/s3 25 MSa/s4 6.25 MSa/s5
Model
WS6-500 100 MSa/s1
50 MSa/s2 25 MSa/s3 50 MSa/s2 25 MSa/s3 12.5 MSa/s4 50 MSa/s2 25 MSa/s3 12.5
MSa/s4
3.125 MSa/s
WS6-200 40 MSa/s 20 MSa/s 10 MSa/s 20 MSa/s 10 MSa/s
5 MSa/s 20 MSa/s 10 MSa/s
5 MSa/s 1.25 MSa/s
Table 4.2: Maximum streaming rates
1 40 MSa/s when connected to USB 2.0 2 20 MSa/s when connected to USB 2.0 3 10 MSa/s when connected to USB 2.0 4 5 MSa/s when connected to USB 2.0 5 3.125 MSa/s when connected to USB 2.0, measuring 3 or 4 channels
These maximum streaming rates are only achieved when using the WiFiScope WS6
DIFF via its USB interface. When used as wired network instrument, maximum
streaming rates may be lower, depending on network speed and load. When used
via WiFi, maximum streaming rates will be lower and will depend on WiFi signal
strength, distance to access point and network load.
The WiFiScope WS6 DIFF is available with two memory configurations, these are:
Measuring
Resolution
Channels
8 bit 12, 14, 16 bit
1 ch 2 ch 3 or 4 ch 1 ch 2 ch 3 or 4 ch
Standard
1 MSa 512 KSa 256 KSa 512 KSa 256 KSa 128 KSa
Model
with XM option
via USB via network
256 MSa
64 MSa
128 MSa
32 MSa
64 MSa
16 MSa
128 MSa
32 MSa
64 MSa
16 MSa
32 MSa
8 MSa
Table 4.3: Maximum record lengths per channel
When used as a (WiFi) network instrument, maximum record lengths are limited.
10 Chapter 4
Optionally available for the WiFiScope WS6 DIFF is SureConnect connection
test. SureConnect connection test tells you immediately whether your test
probe or clip actually makes electrical contact or not. No more doubt whether
your probe doesn’t make contact or there really is no signal. This is useful
when surfaces are oxidized and your probe cannot get a good electrical
contact. Simply activate the SureConnect and you know whether there is contact
or not. Also when back probing connectors in confined places, SureConnect
immediately shows whether the probes make contact or not.
Models of the WiFiScope WS6 DIFF with SureConnect come with resistance
measurement on all channels. Resistances up to 2 MOhm can be measured
directly. Resistance can be shown in meter displays and can also be plotted
versus time in a graph, creating an Ohm scope.
With the SafeGround protected ground option, the differential input of the
WiFiScope WS6 DIFF is switched into a ground current protected single ended
input. This allows to perform single ended measurements with e.g. an
attenuating oscilloscope probe, without the risk of creating a short ciruit to
ground. With the accompanying software the WiFiScope WS6 DIFF can be used as
an oscilloscope, a spectrum analyzer, a true RMS voltmeter or a transient
recorder. All instruments measure by sampling the input signals, digitizing
the values, process them, save them and display them.
4.1 Differential input
Most oscilloscopes are equipped with standard, single ended inputs, which are
referenced to ground. This means that one side of the input is always
connected to ground and the other side to the point of interest in the circuit
under test.
Figure 4.1: Single ended input
Therefore the voltage that is measured with an oscilloscope with standard,
single ended inputs is always measured between that specific point and ground.
When the voltage is not referenced to ground, connecting a standard single
ended oscilloscope input to the two points would create a short circuit
between one of the points and ground, possibly damaging the circuit and the
oscilloscope. A safe way would be to measure the voltage at one of the two
points, in reference to ground and at the other point, in reference to ground
and then calculate the voltage difference between the two points. On most
oscilloscopes this can be done
Introduction 11
by connecting one of the channels to one point and another channel to the
other point and then use the math function CH1 – CH2 in the oscilloscope to
display the actual voltage difference. There are some disadvantages to this
method:
· a short circuit to ground can be created when an input is wrongly connected
· to measure one signal, two channels are occupied · by using two channels,
the measurement error is increased, the errors made
on each channel will be combined, resulting in a larger total measurement
error · The Common Mode Rejection Ratio (CMRR) of this method is relatively
low. If both points have a relative high voltage, but the voltage difference
between the two points is small, the voltage difference can only be measured
in a high input range, resulting in a low resolution
A much better way is to use an oscilloscope with a differential input.
Figure 4.2: Differential input
A differential input is not referenced to ground, but both sides of the input
are “floating”. It is therefore possible to connect one side of the input to
one point in the circuit and the other side of the input to the other point in
the circuit and measure the voltage difference directly. Advantages of a
differential input:
· No risk of creating a short circuit to ground · Only one channel is required
to measure the signal · More accurate measurements, since only one channel
introduces a mea-
surement error · The CMRR of a differential input is high. If both points have
a relative high
voltage, but the voltage difference between the two points is small, the
voltage difference can be measured in a low input range, resulting in a high
resolution
Disadvantages of a differential input:
· Higher sensitivity to external disturbances when used with standard measure
leads
12 Chapter 4
· Cannot be used in combination with a standard attenuating oscilloscope probe
4.1.1
SafeGround on each channel
The SafeGround protected ground feature of the WiFiScope WS6 DIFF allows to
switch the differential inputs to single ended inputs. This enables to perform
single ended measurements as well as using (attenuating) oscilloscope probes.
SafeGround can be enabled for each channel individually.
Figure 4.3: SafeGround A button on each channel toolbar in the software allows
to control the SafeGround state between differential and single ended When
SafeGround is enabled for a channel, the input is switched to single ended and
the ground current of that input is real time monitored. When the ground
current becomes too high (<500 mA), the ground connection is immediately (<100
ns) opened, protecting the input against short circuits to ground. Also a
warning dialog is shown:
Figure 4.4: SafeGround warning Once the short circuit is removed, SafeGround
can be enabled again.
Introduction 13
4.1.2
SafeGround protects your scope, your computer and your circuit under test
against accidental wrong ground connections. The SafeGround protected ground
feature is optionally available for the WiFiScope WS6 DIFF.
Differential attenuators
To increase the input range of the WiFiScope WS6 DIFF, it comes with a
differential 1:10 attenuator for each channel. This differential attenuator is
specially designed to be used with the WiFiScope WS6 DIFF.
Figure 4.5: Differential attenuator For a differential input, both sides of the input need to be attenuated.
Figure 4.6: Differential attenuator matches with differential input Standard
oscilloscope probes and attenuators only attenuate one side of the signal
path. These are not suitable to be used with a differential input. Using these
on a differential input will have a negative effect on the CMRR and will
introduce measurement errors.
Figure 4.7: Standard probe is mismatch with differential input
14 Chapter 4
The Differential Attenuator and the inputs of the WiFiScope WS6 DIFF are
differential, which means that the outside of the BNCs are not grounded, but
carry life signals.
When using the attenuator, the following points have to be taken into
consideration:
· do not connect other cables to the attenuator than the ones that are
supplied with the instrument
· do not touch the metal parts of the BNCs when the attenuator is connected to
the circuit under test, they can carry a dangerous voltage. It will also
influence the measurements and create measurement errors.
· do not connect the outside of the two BNCs of the attenuator to each other
as this will short circuit a part of the internal circuit and will create
measurement errors
· do not connect the outside of the BNCs of two or more attenuators that are
connected to different channels of the WiFiScope WS6 DIFF to each other
· do not apply excessive mechanical force to the attenuator in any direction
(e.g. pulling the cable, using the attenuator as handle to carry the WiFiScope
WS6 DIFF, etc.)
When the WiFiScope WS6 DIFF is equipped with SafeGround and the inputs are switched to single ended, using the diferential attenuator will lead to significant measurement errors. Use attenuating oscilloscope probes instead.
4.1.3
Differential test lead
The WiFiScope WS6 DIFF comes with a special differential test lead. This test
lead is specially designed to ensure a good CMRR.
The special heat resistant differential test lead provided with the WiFiScope
WS6 DIFF is designed to be immune for noise from the surrounding environment.
The differential test lead is only immune for noise when used on a
differential input. When the WiFiScope WS6 DIFF is equipped with SafeGround
and the inputs are switched to single ended, the diferential differential test
lead will not be immune for noise. Use standard shielded test leads or
oscilloscope probes instead.
4.2 Sampling
When sampling the input signal, samples are taken at fixed intervals. At these
intervals, the size of the input signal is converted to a number. The accuracy
of this number depends on the resolution of the instrument. The higher the
resolution,
Introduction 15
the smaller the voltage steps in which the input range of the instrument is
divided. The acquired numbers can be used for various purposes, e.g. to create
a graph.
Figure 4.8: Sampling The sine wave in figure 4.8 is sampled at the dot
positions. By connecting the adjacent samples, the original signal can be
reconstructed from the samples. You can see the result in figure 4.9.
Figure 4.9: “connecting” the samples
4.3 Sampling rate
The rate at which the samples are taken is called the sampling rate, the
number of samples per second. A higher sampling rate corresponds to a shorter
interval between the samples. As is visible in figure 4.10, with a higher
sampling rate, the original signal can be reconstructed much better from the
measured samples.
16 Chapter 4
Figure 4.10: The effect of the sampling rate
4.3.1
The sampling rate must be higher than 2 times the highest frequency in the
input signal. This is called the Nyquist frequency. Theoretically it is
possible to reconstruct the input signal with more than 2 samples per period.
In practice, 10 to 20 samples per period are recommended to be able to examine
the signal thoroughly.
Aliasing
When sampling an analog signal with a certain sampling rate, signals appear in
the output with frequencies equal to the sum and difference of the signal
frequency and multiples of the sampling rate. For example, when the sampling
rate is 1000 Sa/s and the signal frequency is 1250 Hz, the following signal
frequencies will be present in the output data:
Multiple of sampling rate …
-1000 0
1000 2000
…
1250 Hz signal
-1000 + 1250 = 250 0 + 1250 = 1250
1000 + 1250 = 2250 2000 + 1250 = 3250
-1250 Hz signal
-1000 – 1250 = -2250 0 – 1250 = -1250
1000 – 1250 = -250 2000 – 1250 = 750
Table 4.4: Aliasing
As stated before, when sampling a signal, only frequencies lower than half the
sampling rate can be reconstructed. In this case the sampling rate is 1000
Sa/s, so we can we only observe signals with a frequency ranging from 0 to 500
Hz. This means that from the resulting frequencies in the table, we can only
see the 250 Hz signal in the sampled data. This signal is called an alias of
the original signal.
If the sampling rate is lower than twice the frequency of the input signal,
aliasing will occur. The following illustration shows what happens.
Introduction 17
Figure 4.11: Aliasing
In figure 4.11, the green input signal (top) is a triangular signal with a
frequency of 1.25 kHz. The signal is sampled with a rate of 1 kSa/s. The
corresponding sampling interval is 1/1000Hz = 1ms. The positions at which the
signal is sampled are depicted with the blue dots. The red dotted signal
(bottom) is the result of the reconstruction. The period time of this
triangular signal appears to be 4 ms, which corresponds to an apparent
frequency (alias) of 250 Hz (1.25 kHz – 1 kHz).
To avoid aliasing, always start measuring at the highest sampling rate and
lower the sampling rate if required.
4.4 Digitizing
When digitizing the samples, the voltage at each sample time is converted to a
number. This is done by comparing the voltage with a number of levels. The
resulting number is the number corresponding to the level that is closest to
the voltage. The number of levels is determined by the resolution, according
to the following relation: LevelCount = 2Resolution. The higher the
resolution, the more levels are available and the more accurate the input
signal can be reconstructed. In figure 4.12, the same signal is digitized,
using two different amounts of levels: 16 (4-bit) and 64 (6-bit).
18 Chapter 4
Figure 4.12: The effect of the resolution
The WiFiScope WS6 DIFF measures at e.g. 14 bit resolution (214=16384 levels).
The smallest detectable voltage step depends on the input range. This voltage
can be calculated as:
V oltageStep = F ullInputRange/LevelCount
For example, the 200 mV range ranges from -200 mV to +200 mV, therefore the
full range is 400 mV. This results in a smallest detectable voltage step of
0.400 V / 16384 = 24.41 µV.
4.5 Signal coupling
The WiFiScope WS6 DIFF has two different settings for the signal coupling: AC
and DC. In the setting DC, the signal is directly coupled to the input
circuit. All signal components available in the input signal will arrive at
the input circuit and will be measured. In the setting AC, a capacitor will be
placed between the input connector and the input circuit. This capacitor will
block all DC components of the input signal and let all AC components pass
through. This can be used to remove a large DC component of the input signal,
to be able to measure a small AC component at high resolution.
When measuring DC signals, make sure to set the signal coupling of the input
to DC.
4.6 Probe compensation
When the inputs of the WiFiScope WS6 DIFF are switched to single-ended
(SafeGround enabled), standard X1 / X10 attenuating oscilloscope probes can be
used. These are 1x/10x selectable passive probes. This means that the input
signal is passed through directly or 10 times attenuated.
Introduction 19
When using an oscilloscope probe in 1:1 the setting, the bandwidth of the
probe is only 6 MHz. The full bandwidth of the probe is only obtained in the
1:10 setting
The x10 attenuation is achieved by means of an attenuation network. This
attenuation network has to be adjusted to the oscilloscope input circuitry, to
guarantee frequency independency. This is called the low frequency
compensation. Each time a probe is used on an other channel or an other
oscilloscope, the probe must be adjusted. Therefore the probe is equiped with
a setscrew, with which the parallel capacity of the attenuation network can be
altered. To adjust the probe, switch the probe to the x10 and attach the probe
to a 1 kHz square wave signal. This signal is available at pin 3 of the 9 pin
extension connector at the rear of the WiFiScope WS6 DIFF. Then adjust the
probe for a square front corner on the square wave displayed. See also the
following illustrations.
Figure 4.13: correct
Figure 4.14: under compensated
20 Chapter 4
Figure 4.15: over compensated
Driver installation
5
Before connecting the WiFiScope WS6 DIFF to the computer via USB, the drivers need to be installed.
5.1
5.2 5.3 5.3.1 5.3.2
Introduction
To operate a WiFiScope WS6 DIFF via USB, a driver is required to interface
between the measurement software and the instrument. This driver takes care of
the low level communication between the computer and the instrument, through
USB. When the driver is not installed, or an old, no longer compatible version
of the driver is installed, the software will not be able to operate the
WiFiScope WS6 DIFF properly or even detect it at all.
Computers running Windows 10
When the WiFiScope WS6 DIFF is plugged in into a USB port of the computer,
Windows will detect the instrument and will download the required driver from
Windows Update. When the download is finished, the driver will be installed
automatically.
Computers running Windows 8 or older
The installation of the USB driver is done in a few steps. Firstly, the driver
has to be pre-installed by the driver setup program. This makes sure that all
required files are located where Windows can find them. When the instrument is
plugged in, Windows will detect new hardware and install the required drivers.
Where to find the driver setup
The driver setup program and measurement software can be found in the download
section on TiePie engineering’s website. It is recommended to install the
latest version of the software and USB driver from the website. This will
guarantee the latest features are included.
Executing the installation utility
To start the driver installation, execute the downloaded driver setup program.
The driver install utility can be used for a first time installation of a
driver on a system and also to update an existing driver.
The screen shots in this description may differ from the ones displayed on
your computer, depending on the Windows version.
Driver installation 21
Figure 5.1: Driver install: step 1 When drivers were already installed, the
install utility will remove them before installing the new driver. To remove
the old driver successfully, it is essential that the WiFiScope WS6 DIFF is
disconnected from the computer prior to starting the driver install utility.
When the WiFiScope WS6 DIFF is used with an external power supply, this must
be disconnected too. Clicking “Install” will remove existing drivers and
install the new driver. A remove entry for the new driver is added to the
software applet in the Windows control panel.
Figure 5.2: Driver install: Copying files
22 Chapter 5
Figure 5.3: Driver install: Finished
Driver installation 23
24 Chapter 5
Hardware installation
6
Drivers have to be installed before the WiFiScope WS6 DIFF is connected to the
computer via USB for the first time. See chapter 5 for more information.
6.1 Power the instrument
The WiFiScope WS6 DIFF can be powered in three different ways:
· by its built-in battery · via an external power adapter, connected to the
dedicated power input at
the rear panel · via the USB interface
When using the WiFiScope WS6 DIFF via its battery, no external power is
required. The power consumption of the WiFiScope WS6 DIFF depends heavily on
the settings of the instrument, when using higher sampling rates the
instrument uses more power. Also when using larger record lengths, the power
consumption increases. It is therefore not possible to give an exact operating
time when running on its battery. When the battery is charged, the Battery
indicator on the front panel will light up green.
When the battery level becomes low, the Battery indicator on the front panel will light up red.
It is recommended to recharge the battery. When the Battery indicator starts
blinking red, the battery is almost empty and immediate recharging is
required.
An indicator in the software will show the battery status and an estimation of
the remaining operating time.
Hardware installation 25
6.1.1
Charging the battery
Charging the battery is done by connecting the external power supply or by
connecting the USB. When the battery is charging, the Battery indicator on the
front panel will light up blue.
6.1.2
When connected to USB or external power, the battery will only be charged when
the USB or external power can deliver enough power to operate the instrument
and to charge the battery. When not enough power is available, the battery
will be discharged. This is indicated by a blue blinking Battery indicator on
the front panel of the instrument.
Long term storage
When storing the WiFiScope WS6 DIFF for a long time, it is recommended to
first charge the battery to approximately 70 %. Do not store the WiFiScope WS6
DIFF for a long time with an empty battery or 100 % fully charged battery, as
this may reduce battery capacity.
26 Chapter 6
6.2 Instrument operation mode
The WiFiScope WS6 DIFF has a USB interface and a network interface, used to
connect to the instrument via LAN or WiFi. The Power/Mode button at the front
panel determines if the WiFiScope WS6 DIFF operates as USB instrument or as
network (LAN or WiFi) instrument. The light in the Power/Mode button indicates
in which mode the WiFiScope WS6 DIFF operates. When it is on, the network
interface is enabled and the instrument operates as network (LAN or WiFi)
instrument. When it is off, the network interface is disabled and the
WiFiScope WS6 DIFF operates as USB instrument.
Power/Mode button light off: The WiFiScope WS6 DIFF can only be used via USB
Power/Mode button light on: The WiFiScope WS6 DIFF can only be used via LAN or Wifi
When the network interface of the WiFiScope WS6 DIFFis disabled, it will go to
a low power state, to save the battery. To enable it again, a short press on
the Power/Mode button is required. When the WiFiScope WS6 DIFF is not
connected to external power or USB and is not used for two days (network
interface disabled), the WiFiScope WS6 DIFF switches to “Shipping mode”, where
the network interface is consuming no power at all. To wake up the WiFiScope
WS6 DIFF from shipping mode, press the Power/Mode button for 2 seconds. When
arriving from the factory, the WiFiScope WS6 DIFF will be in shipping mode.
When for some reason the network interface will not disable (the lights remain
on), pressing the Power/Mode button for 3 seconds will force the network
interface to be disabled.
For network operation, the WiFiScope WS6 DIFF uses UDP and TCPIP port 5450.
Make sure it is open in your fire wall settings.
Hardware installation 27
6.3 Connect via LAN
To use the WiFiScope WS6 DIFF via the LAN, connect the WiFiScope WS6 DIFF LAN
port on the rear panel to the LAN via a network cable.
The WiFiScope WS6 DIFF network interface must be enabled via the Power/Mode
button on the front panel of the instrument. While the network interface is
initializing, the Power/Mode button will blink, when the initialization is
finished, the Power/Mode button will light up continuously.
When the LAN cable is connected, the LAN interface will attempt to get an
address via DHCP. When that is sucessful, the LAN indicator on the front panel
of the instrument will light up green. When afer 20 seconds no DHCP is found,
the network interface will switch to linklocal mode and use a link-local
address. The LAN indicator on the front panel of the instrument will light up
blue to indicate link-local mode. Link-local mode remains active until the LAN
cable is removed and the LAN LED goes off. When the LAN cable is then
reconnected, getting an address via DHCP is attempted again. In the Multi
Channel software, open the Manage instruments dialog and check Seach
instruments in local network.
When searching the network is checked, the WiFiScope WS6 DIFF will appear. To
connect the software to the WiFiScope WS6 DIFF check it and close the dialog
with the OK button.
28 Chapter 6
6.4 6.4.1
Connect via WiFi
There are several different ways to connect the computer to the WiFiScope WS6
DIFF via WiFi, depending on whether the computer/laptop has WiFi or not.
The computer/laptop has WiFi
To use the WiFiScope WS6 DIFF via Wifi, the network interface must be enabled
via the Power/Mode button on the front panel of the instrument. While the
network interface is initializing, the Power/Mode button will blink, when the
initialization is finished, the Power/Mode button will light continuously.
When the computer does have WiFi, there are two different ways to connect to
the instrument via WiFi.
Connect the WiFiScope WS6 DIFF to the local WiFi network
1. In the Multi Channel software open the Manage instruments dialog and check
Seach instruments in local network.
2. Place a check in front of the detected WiFiScope WS6 DIFF. It may take a
few seconds to discover the instrument.
3. The software will now ask how to connect to the WiFiScope WS6 DIFF, select
Add WifiScope to the ‘WiFi’ network..
4. The connection is now set up, if required, the software will ask for the
network password. The setup may take up to 30 seconds.
The WiFiScope WS6 DIFF is now connected to the local network via WiFi.
Hardware installation 29
Connect to the WiFiScope WS6 DIFF directly using WiFi
1. In the Multi Channel software open the Manage instruments dialog and check
Seach instruments in local network.
2. Place a check in front of the detected WiFiScope WS6 DIFF. It may take a
few seconds to discover the instrument.
3. If the computer is currently connected to a WiFi network, the software
will ask how to connect to the WiFiScope WS6 DIFF, select Add WifiScope to the
‘WiFi’ network..
4. The connection is now set up, if required, the software will ask for the
network password. The setup may take up to 30 seconds.
6.4.2
The WiFiScope WS6 DIFF is now setup as Access Point, to create its own WiFi
network. The computer is disconnected from the local Wifi network and
connected to the WiFiScope WS6 DIFF WiFi network. The computer will now no
longer have internet access and/or access to network locations.
The computer/laptop has NO WiFi
When the computer has no WiFi, the WiFiScope WS6 DIFF will have to be
connected to the local network. Therefore, the network interface of the
WiFiScope WS6 DIFF must be enabled via the Power/Mode button on the front
panel of the instrument. While the network interface is initializing, the
Power/Mode button will blink, when the initialization is finished, the
Power/Mode button will light continuously.
1. Connect the WiFiScope WS6 DIFF via a cable to the LAN as shown in the
section Connect via LAN.
2. In the Multi Channel software open the Manage instruments dialog and check
Seach instruments in local network.
3. Place a check in front of the detected WiFiScope WS6 DIFF. It may take a
few seconds to discover the instrument.
30 Chapter 6
4. Click the WiFi button in the istruments manager to open the WiFiScope WS6
DIFF web interface.
5. Login to the web interface (default password = tiepie). 6. In the web
interface, connect to the WiFi network using the connect button
(and enter its password if required) 7. When successfully connected, close the
web interface and disconnect the
LAN cable. 8. The Multi Channel software will now detect the WiFiScope WS6
DIFF via WiFi,
this may take a few seconds.
Hardware installation 31
6.5 Connect via USB
To use the WiFiScope WS6 DIFF via USB, connect the WiFiScope WS6 DIFF USB port
on the rear panel to the computer via a USB cable.
When using the instrument via USB, the network interface must disabled via the Power/Mode button on the front panel of the instrument.
6.5.1 6.6
When a USB connection is established, this is indicated by a green lit USB
indicator on the front panel of the instrument.
The software can now connect to the WiFiScope WS6 DIFF as local instrument.
Plug into a different USB port
When the WiFiScope WS6 DIFF is plugged into a different USB port, some Windows
versions will treat the WiFiScope WS6 DIFF as different hardware and will
install the drivers again for that port. This is controlled by Microsoft
Windows and is not caused by TiePie engineering.
Operating conditions
The WiFiScope WS6 DIFF is ready for use as soon as the software is started.
However, to achieve rated accuracy, allow the instrument to settle for 20
minutes. If the instrument has been subjected to extreme temperatures, allow
additional time for internal temperatures to stabilize. Because of temperature
compensated calibration, the WiFiScope WS6 DIFF will settle within specified
accuracy regardless of the surrounding temperature.
32 Chapter 6
Instrument ground compensation
7
7.1 Ground compensation cable
The WiFiScope WS6 DIFF is delivered with a special ground compensation cable, together with three corresponding ground clips in different sizes.
Figure 7.1: Ground compensation
The 1.5 m long ground compensation cable has a 2 mm banana plug at one end,
that plugs into the small banana socket at the rear of the WiFiScope WS6 DIFF.
Figure 7.2: Rear ground connection
The other end has a 4 mm banana plug that connects to an alligator clip that
can be connected to the ground of the test subject.
7.2 When using the the ground compensation cable
The ground compensation cable between WiFiScope WS6 DIFF and test subject is
required when the WiFiScope WS6 DIFF is connected to the mains adapter and/or
the USB cable, and the test subject is not grounded.
33 Instrument ground compensation
7.3 When is the ground compensation not required
The ground compensation cable between WiFiScope WS6 DIFF and test subject is
not required when:
· When an input is switched to single ended (SafeGround is enabled) · When the
WiFiScope WS6 DIFF operates on battery power only · When the input range of
the WiFiScope WS6 DIFF is set to 20 V or higher
7.4 Why ground compensation?
Mains power supplies usually have noise filtering capacitors between the mains
input and the output. When a device is powered by such power supply and it is
not grounded, the device will float relative to the ground. This floating
voltage can get as high as the mains voltage. This is however not dangerous
because the current that can flow is very small. When measuring with a
WiFiScope WS6 DIFF, this floating voltage can affect your measurements because
of the high input impedance of the WiFiScope WS6 DIFF, which is 1 MOhm. When
the WiFiScope WS6 DIFF is only battery powered, your measurements will not be
affected, because the WiFiScope WS6 DIFF will also float on the floating
voltage of the test subject. When the WiFiScope WS6 DIFF is connected to the
USB or connected to the mains, the floating voltage will cause a high common
mode voltage at the input of the WiFiScope WS6 DIFF. The inputs of the
WiFiScope WS6 DIFF will then clip and you will get strange measurement
readings. The common mode range of the WiFiScope WS6 DIFF is 2 V (input range
200 mV to 800 mV), 20 V (input range 2 V to 8 V) or 200 V (input range 20V to
80V). So if you measure in the 200mV range and the floating voltage becomes
greater than 2 V, the input channel of the WiFiScope WS6 DIFF will clip and
you will measure strange readings. If you measure in the 20 V range (or
higher) you will suffer much less from the floating voltage because these are
usually smaller than 200 V. When the WiFiScope WS6 DIFF ground is connected to
the ground of the test subject, they will both get the same ground level, so
there will be no (high) common mode voltage due to floating. You will get no
measurement errors then.
34 Chapter 7
Combining and synchronizing instruments
8
When more channels are required than one instrument can offer, multiple instruments can be combined into a larger combined instrument. To combine two or more instruments, the instruments need to be connected to each other using special cables.
Combining instruments is only available when the WiFiScope WS6 DIFF is
connected to the computer via the USB. When used as network instrument (LAN or
WiFi), combining is not possible.
The CMI (Combine Multiple Instruments) interface that is available by default
on the WiFiScope WS6 DIFF provides an easy way to couple multiple
oscilloscopes to one combined oscilloscope.
Figure 8.1: CMI diagram
The CMI interface supports automatic recognition of the instrument. The high
speed trigger bus is automatically terminated with the correct impedance and
the high speed sampling bus is automatically configured and terminated at the
beginning and end of the bus. The high speed sampling bus takes care that each
Handyscope is fully synchronized to ensure that even at the highest sampling
rate the instruments operate at the same sample clock (0 ppm clock error!).
The connection order when combining multiple instruments is not important. The
CMI interface has built-in intelligence to detect the connections and
terminate all buses properly at both ends of the bus. So instruments can be
connected to each other in random order. Placing terminators and determining
the proper connection order is not required! Advantages of the CMI (Combine
Multiple Instruments) interface are:
· automatic instrument recognition, · automatic creation and termination of
the high speed trigger bus, · automatic creation and termination of the high
speed sampling bus, · automatic master/slave setting of the sampling clock
bus.
35 Combining and synchronizing instruments
Figure 8.2: CMI connectors Connecting is done by daisy chaining the CMI
connectors of the instruments prior to starting the software, using special
coupling cables (order number TP-C50H). The software will detect how the
instruments are connected to each other and will automatically terminate the
connection bus. The software will combine the connected instruments to one
large instrument. The combined instruments will sample using the same clock,
with a deviation of 0 ppm.
Figure 8.3: Multiple WiFiScope WS6 DIFFs combined A 20 channel instrument is
easily made by connecting five WiFiScope WS6 DIFFs to each other. When
combining one or more WiFiScope WS6 DIFFs with other instruments including
Handyscope HS5 s and/or WiFiScope WS5 s, the daisy chained CMI bus must begin
or end with a Handyscope HS6, Handyscope HS6 DIFF, WiFiScope WS6, WiFiScope
WS6 DIFF, Automotive Test Scope ATS610004D-XMSG, Automotive Test Scope
ATS605004D-XMS, Automotive Test Scope ATS610004DW-XMSG or Automotive Test
Scope ATS605004DW-XMS. Additionally, the maximum sampling rate is limited to
100 MSa/s at 14 bit resolution.
36 Chapter 8
Front panel
9
Figure 9.1: Front panel
9.1 9.2
9.3 9.3.1
Channel input connectors
The CH1 CH4 Isolated BNC connectors are the main inputs of the acquisition
system. The isolated BNC connectors are not connected to the ground of the
WiFiScope WS6 DIFF.
Power/Mode button
The Power/Mode button is situated at the right of the front of the instrument.
It is used to switch the mode of the WiFiScope WS6 DIFF between USB use and
LAN or WiFi use. To use the WiFiScope WS6 DIFF via LAN or WiFi, the network
interface must be enabled, by pressing the Power/Mode button. During
initializing the network interface, the Power/Mode button will blink green.
When initialization is finished, the indicator in the button will be lit
continuously green.
When using the WiFiScope WS6 DIFF via USB, the network interface must be
disabled, by pressing the Power/Mode button again. The light in the button
will go off.
Status indicators
The WiFiScope WS6 DIFF has a number of status indicators, which can be lit to
indicate the status of the instrument.
Status
The status light indicates whether the WiFiScope WS6 DIFF is being used by
software or is not in use.
· When lit continuously green, the WiFiScope WS6 DIFF is not being used, it is
available to be opened in software.
· When lit continuously blue, the WiFiScope WS6 DIFF is in use, it is already
opened in software.
9.3.2
LAN
When the LAN indicator is lit, the WiFiScope WS6 DIFF is connected to a wired
network.
Front panel 37
· When lit continuously green, the WiFiScope WS6 DIFF has received a network
address via DHCP.
· When lit continuously blue, the WiFiScope WS6 DIFF is assigned a link local
address.
9.3.3
WiFi
When the WiFi indicator is lit, the WiFiScope WS6 DIFF is connected to the
computer and measuring via a WiFi network. The color indicates how the
instrument operates:
· When blinking green, the WiFiScope WS6 DIFF is trying to establish a WiFi
connection to an existing network.
· When lit continuously green, the WiFiScope WS6 DIFF has established a
connection to an existing WiFi network and has received a network address via
DHCP.
· When lit continuously blue, the WiFiScope WS6 DIFF acts as WiFi access
point. Connect the computer via WiFi to the network that the WiFiScope WS6
DIFF creates.
· When lit continuously red, WiFi of the WiFiScope WS6 DIFF is disabled in the
instrument’s web interface.
9.3.4 9.3.5
USB
When the USB indicator is green, the WiFiScope WS6 DIFF is connected to the
computer and measuring via USB.
Batt
The Batt indicator can indicate various different states:
· When lit continuously green, the battery is full, while the extenal power is
still connected. When external power is not connected, the battery is being
discharged, its level is higher than 5 %.
· When lit continuously blue, the battery is charging.
· When blinking blue, external power or USB power is connected, but cannot
deliver enough power to charge the battery.
· When lit continuously red, the battery level is below 5 %, charging is
recommended.
· When blinking red, the battery level is below 2 %, immediate charging is
required.
38 Chapter 9
Rear panel
10
Figure 10.1: Rear panel
10.1
Power
The WiFiScope WS6 DIFF can be powered by its internal battery, via a dedicated
power input at the rear panel and via the USB interface.
To charge the battery, connect the external power supply. The battery can also
be charged via the USB, but only if the USB can deliver enough power to
operate the instrument and charge the battery. If not enough power for both is
available, the battery will not be charged, but will be used by the instrument
and be discharged.
The specifications of the dedicated power connector are:
Pin Center pin Outside bushing
Dimension Ø1.3 mm Ø3.5 mm
Description positive ground
Figure 10.2: Power connector The following minimum and maximum voltages apply to the power inputs:
Minimum Maximum
5 VDC / 2 A 12 VDC / 2 A
Table 10.1: Maximum voltages
Rear panel 39
10.1.1
Power adapter
The WiFiScope WS6 DIFF comes with an external 12 VDC2 A power adapter that can
be connected to any mains power net that supplies 100 240 VAC, 50 60 Hz.
The external power adapter can be connected to the dedicated power connector.
10.2 USB
Figure 10.3: Power adapter
Figure 10.4: USB connector
10.3
The WiFiScope WS6 DIFF is equipped with a USB 3.0 Super speed (5 Gbit/s)
interface with a USB 3 type B Super speed socket. It will also work on a
computer with a USB 2.0 interface, but will then operate at 480 Mbit/s.
LAN
Figure 10.5: LAN connector The WiFiScope WS6 DIFF is equipped with a 1 Gbit
LAN interface with RJ45 socket.
40 Chapter 10
10.4 Extension Connector
Figure 10.6: Extension connector
A 9 pin female D-sub connector is available at the back of the WiFiScope WS6 DIFF containing the following signals:
Pin Description
1 EXT 1 (LVTTL) 2 EXT 2 (LVTTL) 3 Probe Cal
Pin Description
4 reserved 5 reserved 6 GND
Pin Description
7 NC 8 Power OUT (see description) 9 External Clock in
Table 10.2: Pin description Extension connector
10.5
Pins EXT 1 and EXT 2 are equipped with internal 1 kOhm pull-up resistors to
2.5 V. These pins can simultaneously be used as inputs and outputs. Each pin
can be configured as external digital trigger input for the acquisition system
of the WiFiScope WS6 DIFF.
Pin 3, Probe Cal, has a 1 kHz, -1 V to 1 V square wave signal that can be used
to perform probe frequency compensations.
Pin 8, Power OUT, is 5 VDC and can supply 100 mA and is available when the
Power/Mode button of the WiFiScope WS6 DIFF is switched on.
The External Clock In signal must be a 10 MHz ± 1% or a 16.369 MHz ± 1% 2.5 V
TTL signal.
Ground connector
The WiFiScope WS6 DIFF has a special 2 mm banana ground connector, to connect
a ground compensation lead.
Figure 10.7: Ground connector
For a description on how to use the Ground connector and ground compensation
lead, see chapter 7.
Rear panel 41
10.6
CMI
The WiFiScope WS6 DIFF has two Combine Multiple Instruments interface (CMI)
connectors at the rear of the instrument. These connectors are used to combine
multiple instruments to a single combined instrument to perform synchronized
measurements. This requires a TP-C50H coupling cable per two instruments.
They can also be used to get an external sampling clock OUT.
Figure 10.8: CMI connector
Pin Description 1 GND 2 EXT CLK OUT P (LVDS) 3 EXT CLK OUT N (LVDS)
Table 10.3: Pin description CMI connector
The CMI connectors use HDMI type C sockets, but are not HDMI compliant. They can not be used to connect an HDMI device to the WiFiScope WS6 DIFF.
10.7
Factory reset
Right next to the LAN connector a reset button is located to perform a factory
reset on the WiFiScope WS6 DIFF. The factory reset clears all user settings
like wifi networks and login codes. To perform a factory reset, perform the
following steps:
· If the Power/Mode button on the front is lit, press it to switch it off. ·
Press the reset button on the rear and keep it pressed. · While keeping the
reset button pressed, press the Power/Mode button on
the front again, its light will start blinking. · Keep the reset button
pressed until the Power/Mode button starts to light
continuously, then release the reset button. This may take up to 20 seconds.
10.8
The instrument is now back in factory state as when it left the factory. It is
ready to be used again in the same was as indicated in chapter 6.2.
Ventilation slots
Below the LAN connector and power connector a ventilation slot is located,
with a fan behind it. And below the CMI connectors three smaller ventilation
slots are located.
42 Chapter 10
Figure 10.9: Ventilation slots Do not block the ventilation slots as this may
cause the WiFiScope WS6 DIFF becoming too hot. Do not insert objects in the
ventilation slot as this may damage the fan.
Rear panel 43
44 Chapter 10
11.1
Firmware update
11
The network module of the WiFiScope WS6 DIFF has internal firmware, that
determines its capabilities, when the WiFiScope WS6 DIFF is connected via LAN
or WiFi. This firmware can be updated to add new functionality. This chapter
describes the steps to update the firmware of the WiFiScope WS6 DIFF.
Preparation
Updating the firmware will clear all entered WiFi network logins.
First make sure that the firmware update image file is obtained and stored on
a readily available location on the computer.
To update the firmware, a USB connection between the computer and the
WiFiScope WS6 DIFF is required, make sure that the USB cable for the WiFiScope
WS6 DIFF is available. Plug the USB cable in a free USB port of the computer,
but do not connect it to the WiFiScope WS6 DIFF yet.
· Start the latest version of the Multi Channel software, available from the
website.
· In the Multi Channel software, open the Manage instruments window, via the
Instruments menu or hotkey Al.t + S.
· Disconnect the WiFiScope WS6 DIFF from external power and, when used, from
the wired LAN.
· Switch the Power/Mode button off. All indicators on the front panel of the
WiFiScope WS6 DIFF are now off.
11.2
Switching to firmware update mode
· Press the Power/Mode button and keep it pressed. · When the battery
indicator lights up, plug the USB cable in the instrument.
The USB light will now turn blue.
· Now release the Power/Mode button. All lights now turn blue. The WiFiScope WS6 DIFF is now in firmware update mode.
Firmware update 45
11.3
Updating the firmware
The Manage instruments window now has an additional tab Update firmware,
switch to that tab page.
Click the “File” button and in the File open dialog, browse to the location of the firmware image file and select the image file. The “Update” button is now enabled, click it to start the firmware update process.
A progress bar will show the status of the update. The update process will
take approximately 1 minute. When the update is ready, a notification will be
shown.
Now unplug the instrument from the USB. The WiFiScope WS6 DIFF can now be used
via LAN and WiFi again.
46 Chapter 11
12.1
Web interface
12
The WiFiScope WS6 DIFF has a web interface in which status information of the
instrument can be found and in which WiFi network settings can be changed.
Enter the web interface
1. Connect the WiFiScope WS6 DIFF via a cable to the LAN. 2. In the Multi
Channel software open the Manage instruments dialog and
check Seach instruments in local network. 3. Place a check in front of the
detected WiFiScope WS6 DIFF. It may take a few
seconds to discover the instrument. 4. Click the WiFi button in the istruments
manager to open the WiFiScope WS6
DIFF web interface. 5. Login to the web interface (default password = tiepie).
Web interface 47
12.2
Setting a fixed IP address
By default, the WiFiScope WS6 DIFF is setup to receive an IP address by the
DHCP server in the local network. When the WiFiScope WS6 DIFF is connected via
wired LAN, it is possible to set a fixed IP address, for the instrument to
use.
The settings for a fixed IP address are found on the Status page in the web
interface.
Clicking the edit button (pen symbol) behind the IPv4 address opens the IPv4
address edit page. By default, the Method is set to Automatic (DCHP), where
the DHCP server in the network asssigns an IP address to the WiFiScope WS6
DIFF. When the Method is set to Manual, the following settigns can be defined
manually, to your preferences:
· IP address · Subnet mask · Gateway · DNS server
When the WiFiScope WS6 DIFF is connected via WiFi, it is not possible to set a
fixed IP address.
48 Chapter 12
13.1
Specifications
13
To achieve rated accuracy, allow the instrument to settle for 20 minutes. When
subjected to extreme temperatures, allow extra time for internal temperatures
to stabilize. Because of temperature compensated calibration, the WiFiScope
WS6 DIFF will settle within specified accuracy regardless of the surrounding
temperature.
Acquisition system
Number of input channels
4 analog
CH1, CH2, CH3, CH4
Isolated BNC, female
Type
Differential
Resolution
8, 12, 14, 16 bit user selectable
Accuracy
0.25% of full scale ± 1 LSB
Ranges (full scale)
±200 mV ±2 V ±20 V
±400 mV ±4 V ±40 V
Coupling
AC/DC
Impedance
SafeGround disabled
2 M / 12 pF ± 1 %
SafeGround enabled
1 M / 20 pF ± 1 %
Maximum voltage
200 V (DC + AC peak <10 kHz)
Maximum Common Mode voltage 200 mV to 800 mV ranges : 2 V 2 V to 8 V ranges : 20 V 20 V to 80 V ranges : 200 V
Common Mode Rejection Ratio -47 dB
Bandwidth
WS6D-1000
WS6D-500
-3 dB, at 75 % of full scale
250 MHz
250 MHz
Limit, selectable per channel
Off (250 MHz) 150 MHz 100 MHz 50 MHz
Off (250 MHz) 150 MHz 100 MHz 50 MHz
AC coupling cut off freq. (-3dB) ±1.5 Hz
SureConnect
Optionally available (option S)
Maximum voltage on connection 200 V (DC + AC peak <10 kHz)
Resistance measurement
Optionally available (option S)
Ranges
1 k 10 k 100 k 1 M
2 k 20 k 200 k 2 M
Accuracy
1%
Response time (to 95%)
<10 µs
SafeGround
Optionally available (option G)
Maximum voltage on connection 200 V (DC + AC peak <10 kHz)
Maximum switch off current 500 mA
Response time
<100 ns
±800 mV ±8 V ±80 V
WS6D-200 250 MHz Off (250 MHz) 150 MHz 100 MHz 50 MHz
5 k 50k 500 k
Specifications 49
13.2
Acquisition system (continued)
Maximum sampling rate 8 bit Measuring 1 channel Measuring 2 channels Measuring
3 or 4 channels 12 bit Measuring 1 channel Measuring 2 channels Measuring 3 or
4 channels 14 bit 16 bit
Maximum streaming rate67 8 bit Measuring 1 channel Measuring 2 channels
Measuring 3 or 4 channels 12 bit Measuring 1 channel Measuring 2 channels
Measuring 3 or 4 channels 14 bit Measuring 1 channel Measuring 2 channels
Measuring 3 or 4 channels 16 bit
Sampling source Internal Accuracy Stability Time base aging External Input
frequency
Memory
8 bit Measuring 1 channel Measuring 2 channels Measuring 3 or 4 channels
12, 14, 16 bit Measuring 1 channel Measuring 2 channels Measuring 3 or 4
channels
WS6D-1000
WS6D-500
WS6D-200
1 GSa/s 500 MSa/s 200 MSa/s
500 MSa/s 200 MSa/s 100 MSa/s
200 MSa/s 100 MSa/s 50 MSa/s
500 MSa/s 200 MSa/s 100 MSa/s 100 MSa/s 6.25 MSa/s WS6D-1000
200 MSa/s 100 MSa/s 50 MSa/s 50 MSa/s 3.125 MSa/s WS6D-500
100 MSa/s 50 MSa/s 20 MSa/s 20 MSa/s 1.25 MSa/s WS6D-200
200 MSa/s1 100 MSa/s2 50 MSa/s 3
100 MSa/s1 50 MSa/s2 25 MSa/s3
40 MSa/s 20 MSa/s 10 MSa/s
100 MSa/s2 50 MSa/s3 25 MSa/s4
50 MSa/s2 25 MSa/s3 12.5 MSa/s4
20 MSa/s 10 MSa/s 5 MSa/s
100 MSa/s2
50 MSa/s2
20 MSa/s
50 MSa/s3
25 MSa/s3
10 MSa/s
25 MSa/s4
12.5 MSa/s4
5 MSa/s
6.25 MSa/s5
3.125 MSa/s
1.25 MSa/s
1 40 MSa/s when connected to USB2 2 20 MSa/s when connected to USB2 3 10 MSa/s
when connected to USB2 4 5 MSa/s when connected to USB2 5 3.125 MSa/s when
connected to USB2, measuring 2 or more channels 6 On some computers, the
highest streaming rates may not be available,
due to computer restrictions. 7 When connected through LAN or WiFi, the
maximum streaming rates are
limited and depend on the speed and load of the network
TCXO ±0.0001% ±1 ppm over 0 C to +55 C ±1 ppm per year time base aging LV-TTL (2.5 V), on Extension connector
10 MHz ±1 % 16.369 MHz ±1 %
Standard model
XM option via USB
XM option via LAN/WiFi
1 MS 512 KS 256 KS
256 MS 128 MS 64 MS
64 MS 32 MS 16 MS
512 KS 256 KS 128 KS
128 MS 64 MS 32 MS
32 MS 16 MS 8 MS
50 Chapter 13
13.3 Trigger system
System Source Trigger modes
13.4
Level adjustment Hysteresis adjustment Resolution Pre trigger Post trigger
Trigger hold-off Trigger delay Digital external trigger
Input Range Coupling Jitter
Power
13.5
Power Consumption Internal battery
Capacity Operating time Power adapter Input Output Dimension
Height Width Length Cable length Order number Replaceable mains plugs for
Physical
Height Length Width Weight USB cord length
Digital, 2 levels
CH1, CH2, CH3, CH4, digital external, OR
Rising / Falling / Any edge, Inside / Outside window, Enter / Exit window, Pulse width, Interval
(time conditions only on Ch1) (time conditions only on Ch1)
(only on Ch1) (only on Ch1)
0 to 100% of full scale
0 to 100% of full scale
0.024 % (12 bits)/0.006 % (14/16 bits)
0 to selected record length, 1 sample resolution
0 to selected record length, 1 sample resolution
0 to 64 MSamples, 1 sample resolution
0 to 16 GSamples, 1 sample resolution
Extension connector pins 1 and 2 0 to 2.5 V (TTL) DC 1 sample
From USB, external input or built-in battery 12 VDC, 2 A max Li-ion 7000 mAh,
3.7 V Strongly depending on instrument setup, 3 hours External 110 to 240 VAC,
50 to 60 Hz, 500 mA 12 VDC, 2 A
57 mm / 2.2″ 30 mm / 1.2″ 88 mm / 3.4″ 1.8 m / 70″ TP-UES24LCP-120200SPA EU,
US, AU, UK
44 mm / 1.7″ 187 mm / 7.4″ 215 mm / 8.5″ 751 g / 26.5 ounce 1.5 m / 59″
Specifications 51
13.6 Probe calibration
13.7
Output Signal
Level Frequency
Extension connector pins 3 (signal) and 6 (ground) Square wave -1 V to 1 V 1 kHz
Multi-instrument synchronization
13.8
Using CMI
Combining instruments is only available when all instruments are connected via USB. When connected via LAN or WiFi, combining via CMI is not available.
Maximum number of instruments Limited by available number of USB ports
Synchronization accuracy
0 ppm
CMI interface
2x, CMI 1, CMI 2
Required coupling cable
TP-C50H Coupling cable CMI
Maximum coupling cable length 50 cm
Using WCMI
Maximum number of instruments No limitation
Required coupling module
WCMI-8 and WCMI-9
Clock synchronization accuracy 1 ppm, typical 0.2 ppm
Trigger jitter at sample rate *
1 MSa/s
1 MSa/s
2 x “5”
±2 samples
±2 µs
“5” and “6”
Trigger source = “5”
±2 samples
±2 µs
Trigger source = “6”
±8 samples
±8 µs
2 x “6”
- “5” = WiFiScope WS5 or Handyscope HS5
±8 samples
±8 µs
“6” = WiFiScope WS6 (DIFF) or Handyscope HS6 (DIFF)
I/O connectors
13.9
CH1, CH2, CH3, CH4 USB LAN Extension connector Power CMI connectors 12
Interface
Isolated BNC, female USB3 type B Super Speed socket RJ45 socket D-sub 9 pins female 3.5 mm power socket HDMI type C socket
13.10
USB
Network LAN WiFi Network port (TCPIP and UDP)
USB 3.0 SuperSpeed (5 Gbit/s) (USB 2.0 HighSpeed (480 Mbit/s) compatible)
1 Gbps 802.11 5450 (IANA assigned)
System requirements
PC I/O connection Operating System
USB 2.0 or newer Windows 10, 32 and 64 bits
52 Chapter 13
13.11 Environmental conditions
13.12
Operating for rated accuracy without specifications
Charging Storage
Ambient Temperature
20 C to 25 C 10 C to 40 C 0 C to 35 C 0 C to 35 C
Certifications and Compliances
Relative Humidity
10 to 90 % non condensing 10 to 90 % non condensing 10 to 90 % non condensing
5 to 95 % non condensing
CE mark compliance
Yes
RoHS
Yes
REACH
Yes
EN 55011:2016/A1:2017
Yes
EN 55022:2011/C1:2011
Yes
IEC 61000-6-1:2019 EN
Yes
IEC 61000-6-3:2007/A1:2011/C11:2012
Yes
ICES-001:2004
Yes
AS/NZS CISPR 11:2011
Yes
IEC 61010-1:2010/A1:2019
Yes
UL 61010-1, Edition 3
Yes
13.13 Measure leads
Model Type Connectors
Instrument side Test point side Bandwidth Safety Dimensions Total length
Length to split Length individual ends Weight Color Heat resistant
Certification and compliances CE conformity RoHS Accessories Color coding
rings Suitable instrument
TP-C812B Differential
Isolated male BNC connector Red and black 4 mm shrouded banana plugs 7 MHz CAT
III, 1000 V, double isolated
2000 mm 800 mm 1200 mm 80 g Black Yes
Yes Yes
5 x 3 rings, various colors WiFiScope WS6 DIFF
Specifications 53
13.14 Differential attenuators
13.15
Model Attenuation Bandwidth Input impedance Maximum input voltage Input
connector Output connector Dimensions
Length Diameter Weight Suitable instrument
Package contents
TP-DA10 10 x, differential 25 MHz 10 M // 15 pF 300 V Female BNC Male BNC
79 mm 19 mm 30 g WiFiScope WS6 DIFF
Instrument Measure leads Differential attenuator Alligator clips, large
Alligator clips, medium Alligator clips, small Accessories
Software Drivers Software Development Kit Manual
13.16 Warranty
WiFiScope WS6 DIFF
4 x Measure lead TP-C812B, Differential BNC to 4 mm banana plug, 2 m long
4 x Differential Attenuator TP-DA10
8 x Alligator Clip TP-AC80I: green, blue, yellow, red and 4 x black
8 x Alligator Clip TP-AC10I: green, blue, yellow, red and 4 x black
8 x Alligator Clip TP-AC5: green, blue, yellow, red and 4 x black
Ground compensation cable TP-GCC150 with 3 alligator clips External power
adapter network cable USB cable
Windows 10, 32 and 64 bits, via website
Windows 10, 32 and 64 bits, via website
Windows 10 and Linux, via website
Quick Start Guide, Instrument manual and software manual
TiePie engineering instruments are designed, manufactured and tested to provide high reliability. In the unlikely event you experience difficulties, the TiePie engineering instruments are fully warranted for two years.
This warranty includes
All parts and labor (excluding probes and/or measure leads and/or batteries) Warranty on batteries is 6 months. No charge for return shipping Long-term 7 year support Upgrade to the latest software at no charge
Optionally available
Extension to five year warranty, option W5
54 Chapter 13
If you have any suggestions and/or remarks regarding this manual, please contact:
TiePie engineering Koperslagersstraat 37 8601 WL SNEEK The Netherlands
Tel.: Fax: E-mail: Site:
+31 515 415 416 +31 515 418 819 [email protected] www.tiepie.com
TiePie engineering WiFiScope WS6 DIFF instrument manual revision 2.44, October 2023