Related Manuals for Meilhaus Electronic MEphisto Scope
Summary of Contents for Meilhaus Electronic MEphisto Scope
- Page 1 Meilhaus Electronic Manual MEphisto Scope (UM202, UM203) 2-Channel USB-Universal-Measuring-Box/ -Instrument with MEphistoLab -Software...
- Page 2 Electronic assumes no responsibility for its use, any infringements of patents or other rights of third parties which may result from use of this manual or the product. Meilhaus Electronic assumes no responsibility for any problems or damage which may result from errors or omissions.
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Page 3: Table Of Contents
Important Notes ............... 6 1.1.1 Use in Accordance with the Requirements ....... 6 1.1.2 Warnings ..............7 Package Contents ............. 8 Models MEphisto Scope ............. 8 Short Description .............. 9 1.4.1 Oscilloscope ..............12 1.4.2 Voltmeter ..............12 1.4.3 Analog Datalogger ............13 1.4.4 Digital-Input/Output ............. - Page 4 2.2.2 Standard Settings (Setup Menu)........29 2.2.3 Views ................. 30 2.2.3.1 Logger .............. 30 2.2.3.2 Display .............. 30 2.2.3.3 XY-Display ............31 2.2.3.4 FFT-Display ............32 2.2.3.5 Viewer .............. 33 2.2.3.6 Device List ............33 2.2.3.7 Run/Stop ............34 2.2.3.8 Sampling ............34 2.2.3.9 Amplitude ............
- Page 5 Specifications ................ 52 Error messages ..............59 Pinouts ................. 61 Accessories ................62 Technical Questions ..............63 Hotline ................63 Index ..................64...
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Page 6: Introduction
Important Notes 1.1.1 Use in Accordance with the Requirements MEphisto Scope is intended to be used by qualified profession- als. Use a power supply that conforms to the specifications of the MEphisto Scope. -
Page 7: Warnings
BNC connectors and the de- vice’s housing which is lead on to the PC-housing via the USB ca- ble. That means that the housing of the MEphisto Scope may carry 230 V (by accidentally connecting the phase of the Schuko-plug with the mass of your probe, for example). -
Page 8: Package Contents
Scope (time, XY, range), voltmeter, analog data logger, logic analyzer, digital data logger, digital-I/O, for Windows. Based on MCD tool monitor, incl. script editor. Furthermore: MEphisto Scope is also supported by the driver system ME-iDS. iDS is a prerequisite to use the MEphisto Scope. -
Page 9: Short Description
Up to 100 kS/s (depending on card). Start measurement by plugging in the SD card. The MEphisto Scope is a universal combination-instrument combin- ing a digital storage oscilloscope, a range analyzer/FFT, a voltme- ter, a logic analyzer, a data logger and a 24 channel digital-I/O in a compact steel metal housing. - Page 10 You may choose between the following models (Tip: In case you don’t have a MEphisto Scope, choose the menu „Extras – Options – Driver“, then go to „Simulation“ and try the software without connected hardware: ...
- Page 11 „Script editor“ Write your own code in C# and make auto- mated measurements (see chapter 1.4.9, p. 18). General note: The MEphistoLab tries to implement setting de- faults as accurately as possible. However, the hardware may not implement all values accurately. In such cases, the oscilloscope ap- proximates the setting to the desired value.
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Page 12: Oscilloscope
1.4.1 Oscilloscope The module „Oscilloscope“ has 2 measurement channels. They dis- play frequency signals up to 500 kHz. All frequency signals meas- ured above this limit are non-existent in reality. This should be kept in mind when defining a completely unknown signal. Both channels share a common time basis. -
Page 13: Analog Datalogger
1.4.3 Analog Data-Logger The module „Data Logger Analog“ has two measurement channels. They show signals with a signal frequency of up to 50 kHz. Image frequencies measured above this limit do not exist in reality. This should be kept in mind when defining a completely unknown signal. Both channels share a common time basis. -
Page 14: Digital-Input/Output
1.4.4 Digital-Input/Output The MEphisto Scope has 24 Digital-I/Os. Each channel may be con- figured independently as input or output. When you turn on the device, all channels are configured as input. -
Page 15: Logic-Analyzer
1.4.5 Logic-Analyzer The module „Logic-Analyzer“ shows 16 digital channels with a fre- quency of up to 50 kHz. Image frequencies measured above this limit do not exist in reality. This should be kept in mind when defin- ing a completely unknown signal. In case of doubt, an observation through the oscilloscope may shed light but only up to a frequency of 500 kHz. -
Page 16: Digital Datalogger
1.4.6 Digital Data-Logger The module „Digital Data logger“ shows 16 digital measurement channels with a frequency of up to 50 kHz. Image frequencies measured above this limit do not exist in reality. This should be kept in mind when defining a completely unknown signal. In case of doubt, an observation with the oscilloscope may shed light but only up to a frequency of 500 kHz. -
Page 17: Data-Display
Logic Analyzer mode. 1.4.8 Set up Offline Mode The MEphisto Scope UM203 may save data onto an SD-card that has a capacity of up to 2 GB. After applying the supply voltage, the MEphisto Scope uses the settings that were last made online. -
Page 18: Script Editor (Script Menu)
It is not possible to end the recording. 1.4.9 Script Editor (Script Menu) Using the Script-Engine, the Mephisto Scope automatically per- forms measurements and calculates further measurement values. Scripts may be edited, loaded and saved, as well as started and... -
Page 19: System Requirements
1.5.2 SD-Cards 1.5.2.1 General Information The MEphisto Scope accepts SD-cards with a capacity range from 8 MB to 2 GB. A functioning of cards with a capacity of 8 MB or 16 MB cannot be guaranteed for all manufacturers. Capacities of more than 2 GB are not supported. -
Page 20: Speed
1.5.2.4 File Attributes The MEphisto Scope generates a unique file name for each meas- urement. The name is based on the date and time the file was cre- ated. In the logger-modes, the file’s first time-stamp is set on the time when the file was created. -
Page 21: System Requirements
They should be deleted prior to the evaluation of other measurement data. System Requirements System Requirements for MEphisto Scope UM202/UM203 und MEphistoLab : Windows 7 through Windows 10 as well as driver software ME-iDS: Please note the corresponding README-files. - Page 22 o The tracking of a starting-process (Single-Shot-Opera- tion) o The detection of a brief exceeding (Single-Shot-/Run-Op- eration) Window, inside / Window, outside In this mode, a window is defined by means of an upper and a lower threshold. The trigger-event occurs as soon as the signal enters or leaves the window.
- Page 23 o Detecting a „forbidden area“, e.g. in digital technology (Single-Shot/Run-Operation) Edge, rising / Edge, falling If this mode is activated, an exceeding or not meeting the indi- cated threshold is awaited (similar as in threshold-trigger). However, in the edge-mode the threshold must be crossed. A signal that is statically too high or too low does not activate the trigger.
- Page 24 Secondly, this mode is suitable to re- alize a frequency detection. The MEphisto Scope has a limited measurement range. In order to prevent uncontrolled fluctuations in the measuring range near the upper or lower edge, the trigger also triggers if the current voltage plus the rise would exceed or fall below the measuring range.
- Page 25 o Recognition of a critical condition (Single-Shot/Run-Oper- ation) o Detecting a frequency (Run-Operation) o Potentially exceeding the measuring range at the next measured value (Single-Shot/Run-Operation) External, rising / External, falling If this mode is active, as with the edge trigger, a rising or fall- ing edge is awaited.
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Page 27: Software Installation
Windows pointing out that the driver is not certified my Microsoft, may be ignored. ⇒ The system driver is installed and the MEphisto Scope is regis- tered in the device manager with the device class „Meilhaus DAQ Boards“. -
Page 28: User Interface
User Interface The user interface of the MEphistoLab may be set rather freely and adapted to different applications. All windows may be positioned freely and arranged according to your own requirements. All functions of the MEphistoLab may be controlled by other Win- dows programs via a COM-Server-Interface. -
Page 29: Standard Settings (Setup Menu)
With “Driver”, the driver for the MEphisto Scope may be set. The standard driver is FTDI and should only be changed if necessary. If no hardware is available, a simulated input signal may be chosen by selecting “Simulation”. -
Page 30: Views
2.2.3 Views The individual views or subfunctions may be selected via the “Win- dows” menu. 2.2.3.1 Logger The menu “Logger” displays the logger that records internal events. The configuration in which messages are to be recorded takes place in the basic settings. 2.2.3.2 Display... -
Page 31: Xy-Display
The “Display” menu opens the main window for displaying the meas- ured input signal. The „Context Menu“ allows you to make a wide range of changes on how the signal is displayed. 2.2.3.3 XY-Display The “XY” menu displays the measured input signal as an XY dia- gram. -
Page 32: Fft-Display
2.2.3.4 FFT-Display The „FFT“ menu opens the display of the frequency analysis. The „Context Menu“ allows you to make a wide range of changes on how the signals are displayed. -
Page 33: Viewer
2.2.3.5 Viewer The internal viewer displays stored measurement curves. The „Con- text Menu“ allows you to make a wide range of changes on how the signals are displayed. 2.2.3.6 Device List The menu item „Device List“ displays all connected items that the MEphistoLab „finds“. -
Page 34: Run/Stop
2.2.3.7 Run/Stop The menu item „Run“ activates a window that starts and stops the measurements. In this window, you may start a continuous measurement via the button „Run“. The button „Stop“ stops a running measurement. The button „Single“ activates a one-time recording of the input sig- nal. -
Page 35: Amplitude
„Duration“ determines the duration of a measurement. The sam- pling frequency resulting from "Samples" and "Duration" is displayed. 2.2.3.9 Amplitude The “Amplitude” menu opens a window for entering the measuring range for both channels. The amplitude can be set between 0.2 V and 20 V in the grid 1-2- 5. -
Page 36: Offset
2.2.3.11 Offset The „Offset“ menu opens a window for entering an offset for both channels. The center of the measuring range can be determined by means of the value “Off-set”. The value range comprises half the amplitude in the positive or negative direction. The maximum voltage of ± 10 V may not be exceeded. -
Page 37: Values
In addition, setting the trigger point is possible. It is indicated in percent and determines at which point of the screen the trigger event is to be displayed. Given a measurement period of 1 ms and a setting of 10%, the trigger point is at 0.1 ms. Thus, it is mainly the behavior after the trigger event that is displayed. -
Page 38: Analog Meter
2.2.3.13 Analog Meter Some selected measurements of the input signal may be displayed in the form of virtual pointer elements. Via a context menu, these pointer elements may be adapted to different measuring ranges. -
Page 39: Panels
2.2.3.14 Panels Some selected readings of the input signal may be displayed in the form of panels. 2.2.3.15 Digital-I/O The “Digital IO” menu opens a window in which the digital I / O may be set and displayed. Each channel may be independently configured as input or output. After switch-on, all channels are configured as inputs. - Page 40 Make sure that the voltage levels are maintained and a reference to the PC ground (PC_GND) is established, when connecting the digital inputs / outputs directly. „Low“: U : max. 0.6 V. Output level „High“: U : typ. 5 V ±10 % (USB supply voltage). ...
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Page 41: Script Editor
2.2.3.16 Script Editor With the help of the script engine, the MEphisto Scope can auto- matically perform measurements and calculate further measured values. Scripts may be edited, loaded and saved here, as well as started and stopped. -
Page 42: Programming Interface
Programming interface 2.3.1 General Using the programming interface (COM / DCOM), the MEphistoLab can automatically perform measurements, calculate further meas- ured values and remotely control them via any COM / DCOM-com- patible Windows program. Programming within the script engine is done in C #. 2.3.2 Class name The MEphistoLab is called via the following COM / DCOM class:... -
Page 43: General Commands
2.3.5 General commands Command/Feature Description Reset() Puts all settings to predefined values. Debug(object value) Output of a value or message in the Debug window. LoadPreset(string file- Loads presets. Name) Sleep(int timeMS) Stops program execution for a certain time (timeMS in milliseconds). AutoScaleDisplay() Scales the displays automatically. -
Page 44: Measured Values
ProbeCh1 Probe channel 1 ProbeCh2 Probe channel 2 OffsetCh1 Offset channel 1 OffsetCh2 Offset channel 2 2.3.7 Measured values Command/Feature Description GetData(int channel) Returns the last measured curve as a double array in volts. GetDataRange(int chan- Returns a range of the last nel, int startIndex, int measured curve as a double array in volts. -
Page 45: Synthetic Measurement Values
2.3.8 Synthetic measurement values Using the script engine, it is possible to change the measured val- ues recorded by the MEphisto Scope before processing. There are two functions to be accessed with the recorded measurement val- ues. As soon as these functions are provided, the measured signal is "processed"... - Page 46 // Default Debug(„Set default and run“); Scope.Reset(); Scope.Run(); Debug(„Running flag: „ + Scope.IsRunning); Debug(„Abort flag: „ + Scope.IsAborted); Sleep(1000); Scope.AutoScaleDisplay(); Sleep(3000); // Debug measurement values Debug(„RMS Ch1: „ + Scope.RMS[0]); Debug(„RMS Ch2: „ + Scope.RMS[1]); Debug(„AC Ch1: „ + Scope.AC[0]); Debug(„AC Ch2: „...
- Page 47 Debug(data[i].ToString(„0.000“) + „ V“); //Get FFT Debug(„FFT (first 10 values“); double[] fft = Scope.GetFFT(0); for (int i = 0; i < 10; i++) Debug(fft[i].ToString(„0.000“)); Scope.Stop(); // Trigger Scope.TriggerMode = 'M'; Scope.TriggerLowerLimit = -0.5f; Scope.TriggerUpperLimit = 0.5f; Scope.TriggerPoint = 50; Scope.TriggerChannel = CH1; // Amplitude Scope.AmplitudeCh1 = 10;...
- Page 48 Scope.AutoScaleDisplay(); Sleep(3000); Scope.ActiveChannels = CH2; Scope.SampleCount = 5000; Scope.SamplingDuration = 0.1f; Scope.Single(); Sleep(1000); Scope.AutoScaleDisplay(); Sleep(3000); Scope.ActiveChannels = CHBOTH; Scope.SampleCount = 100000; Scope.SamplingDuration = 1f; Scope.Single(); Sleep(1000); Scope.AutoScaleDisplay(); Sleep(3000); // analog data logger Debug(„Analog data logger“); Scope.ActiveChannels = CH1; Scope.SampleCount = 100000; Scope.SamplingDuration = 10.0f;...
- Page 49 Sleep(3000); Scope.Stop(); // digital data logger Debug(„Digital data logger“); Scope.ActiveChannels = DIGITALIO; Scope.SampleCount = 100000; Scope.SamplingDuration = 10.0f; Scope.SamplingMode = DATALOGGER; Scope.Single(); Sleep(11000);...
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Page 50: Hardware
Hardware Functional diagram Features UM202 UM203 Measuring modes Voltmeter, DC ✔ ✔ Voltmeter, true RMS value ✔ ✔ Analog Oscilloscope ✔ ✔ Analog Oscilloscope, self-sufficient ✔ Analog Data Logger ✔ ✔ Analog Data-Logger, self-sufficient - ✔ Logic Analyzer ✔ ✔ Logic Analyzer, self-sufficient ✔... -
Page 51: Digital-I/O
Digital-I/O... -
Page 52: Appendix
Appendix Specifications Analog Inputs Number, resolution 2 x 16 bit total sampling 2 MS/s (2 channels) Simultaneous channels Input voltage range ±100 mV…±10 V Analog Bandwidth (-3 dB) 500 kHz Value memory 256 kS Trigger modes Threshold, window, edge, slope (dU / dt), external manual Digital Channels Number... - Page 53 Additional Information Sample memory PC-Interface USB 2.0 (FS), USB1.1 compatible Power consumption in measure- ment mode, without load on digital channels Connector Analog channels 2 * BNC Digital channels 1 * SUB-D-26 (HD) USB - B External power supply (only UM203) DC plug, 5.5 mm SD card (UM203 only) Push-push socket...
- Page 54 Stand-Alone Data logger (UM203): via USB-cable as UM202 without connection to PC. Recording is started by inserting the SD card into the slot. To read the data from the SD-card, a commer- cially available SD-card reader is needed. Recording is started by inserting the SD-card into the slot. To read the data from the SD-card, a commercially available SD-card reader is needed.
- Page 55 Analog Oscilloscope Mode Analog Inputs Resolution 16 bit Nonlinearity, integral ±2 LSB Sampling rate 2 x 1 MS/s Measured value memory per channel 100 Samples to 131.000 Sam- ples Simultaneous channels Input voltage range ±100 mV to ±10 V (in 1-2-5-steps) Analog Bandwidth (-3 dB) 500 kHz Automatic signal detection...
- Page 56 Logic-Analyzer Mode Digital Inputs Simultaneous channels 8 + 8 Measured value memory per channel 100 Samples to 262.000 Sam- ples Simultaneous trigger channels Sampling rate 100 kS/s Delay between the 8-bit groups 2μ Time basis 10 μs to 2,5 s (1μs/S to 10 ms/S in 1 μs steps, then 10 ms/S steps) Accuracy (time)
- Page 57 (1μs/S to 10 ms/S in 1 μs steps, then 10 ms/S steps) Accuracy (voltage) bei 25 ºC 0,1 % or 1 mV Accuracy (time) 100 ppm Overload protection ±300 VDC Noise (typ.) -66 dB (RMS) -48 dB (S-S) Input impedance 1 MΩ, 14 pF Trigger Modes Threshold...
- Page 58 Overload protection +5,5 VDC/-0,5 VDC Input impedance 50 MΩ, 8 pF Trigger Modes Pattern (low / high / edge rising / edge ✔ falling / ignore) in any combination sim- ultaneous for 8 bit Manually ✔ ✔ Extern Delay ✔ GPIO Mode (not usable in Logic Analyzer mode) Digital channels Resolution...
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Page 59: B Error Messages
Error messages The MEphisto Scope does a self-test after switching on. When all components have passed the test, the device goes into standby mode. If it is connected to a PC and initialized, then both LEDs are constantly lit in this state. - Page 60 storage without power supply. To be fully charged, the buffer capaci- tor needs to be connected to a power supply for at least 24 hours (USB or power adapter). Please reconfigure the device and charge the capacitor for a longer period of time.
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Page 61: C Pinouts
Pinouts... -
Page 62: D Accessories
Accessories We recommend to use high-quality connector cables with single- shielded lines per channel. For further accessories please refer to the current Meilhaus Elec- tronic catalog and the internet: www.meilhaus.de/en/pc-boards/accessories/... -
Page 63: E Technical Questions
Download-Server and Driver Update: To download current driver versions for Meilhaus Electronic devices as well as manuals in PDF format, please go to: www.meilhaus.org/driver Service Department with RMA Process: In case you need to return a board for repair purposes, we strongly ask you attach a detailed description of the error as well as infor- mation regarding your computer/system and the software used. -
Page 64: F Index
Index Accessories Logger Amplitude Logic-Analyzer Analog Data-Logger Analog Meter Appendix Measured values Models MEphisto Scope Connection Offset Oscilloscope Data-Display Device List Digital Data-Logger Digital-I/O 39, 51 Digital-Input/Output Package Contents Display Panels Pinouts Probe Programming interface Project Management error messages Run/Stop... - Page 65 Termination of measurement Viewer Trigger Views Trigger Modes Voltmeter User Interface Warnings Values XY-Display...
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