Meilhaus Electronic UM202 User guide

Safety

!

The “MEphisto Scope 1” has a maximum input voltage of ±10 VDC.
Measuring higher voltages than this directly may damage the instru­ment and invalidate the warranty. The instrument is not galvanically

isolated - i.e. the ground of the internal circuitry connects directly to the
ground of the host pc via the USB supply. To measure high voltages such as mains
supplies use a high voltage differential probe for your personal safety and to prevent
damage to the instrument. Please follow the appropriate standards, installation
instructions and national safty standards. Meilhaus Electronic GmbH assumes no
responsibility for damage in case of faulty installation, operation or handling.

What‘s in the Box?

Please make sure, that your “MEphisto Scope 1” box includes the following items:

• 1 x USB scope “MEphisto Scope 1” (UM202) hardware.

• CD with driver and DAQ software “MEphistoLab”.

• USB cable (type A - type B)

• Getting Started Guide.

Accessories (optional)

“ME-Probe LF Pair”

2 passive modular probes (1:1/1:10
selectable) with accessories. Bandwidth:
15/150 MHz, 47/15.5 pF, 1/10 MΩ,
600 Vp CAT I.

“ME-UB” series

Connect up to 3 “ME-UB” boxes to the
26pin D-sub with a tripple break-out
cable “ME AK-DUB/UM202”.

2 Channel USB Scope “MEphisto Scope 1” (UM202)

Getting Started Guide

ME-UB15

15-pin terminal

ME-UBOI

8 opto-isolated
inputs (2.5…60V)

ME-UBOO

8 opto-isolated
outputs (up to 60V)

ME-UBRE

8 relays, change­overs (5 A/240 VAC)

Support

Should you experience problems with the device or software, please send an E-Mail
to [e-mail].

Newest infos and software updates on our web site: www.meilhaus.com.

Meilhaus Electronic GmbH

Fischerstrasse 2
82178 Puchheim/Germany

E-Mail [e-mail]
Web www.meilhaus.com

 +49 - 89 - 89 01 66-0

FAX +49 - 89 - 89 01 66-77

Release: 06.05.2005

All trademarks acknowledged.
Information contained in this
document is subject to change
without notice.

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

DIO_17

DIO_18

DIO_19

DIO_20

DIO_21

DIO_22

DIO_23

DIO_24
(EXT_TRIG)

DIO_9

DIO_10

DIO_11

DIO_12

DIO_13

DIO_14

DIO_15

DIO_16

PC_GND

1

2

3

4

5

6

7

8

9

DIO_1

DIO_2

DIO_3

DIO_4

DIO_5

DIO_6

DIO_7

DIO_8

PC_GND

“MEphisto Scope 1” - Features

“MEphisto Scope 1” combines the functionality of an oscilloscope, a digital volt
meter (DVM), as well as 24 discrete digital I/Os in a single compact device. The
module is powered from the PC via the USB interface; no external power supply is
necessary.

Both analog inputs have BNC connectors for standard oscilloscope probes. Each
channel has it’s individual 16 Bit A/D converter which gives you simultaneous
sampling rates of 1 MS/s on both channels. The input range is ±10 V. Multiple
trigger options can be selected to start an analog acquisition. The 24 discrete
digital I/O channels (TTL) can be congured as input or output individually.

The “MEphistoLab” software which is included with the device, is a virtual
instrument panel, that gives you easy and quick access to all functions of the device
under Windows 98SE, Me, 2000 and XP. The software requires the installation of
the Agilent VEE runtime software version 7.0 (included on CD-ROM).

Hardware Specifications

Analog Inputs

Number, resolution 2 x 16 bit
Total sampling rate 2 MS/s (2 channels)
Simultaneous channels 2
Input voltage range ±100 mV … ±10 V
Analog bandwidth (-3 dB) 5 MHz (no anti aliasing lter)
Sample memory 256 kS
Trigger types Level, window, edge, slope (dU/dt), external, manual

Digital Inputs/Outputs

Number 24 I/Os
Conguration each bit programmable as input or output
Signal level +5 V (CMOS)

General Data

PC inferface USB 2.0 full-speed (USB 1.1 compatible)
Power supply +5 V/0.85 W via USB interface
Reference ground PC ground (PC_GND)
Connectors Analog channels: 2 x BNC connectors (front panel)

Digital channels: 26-pin D-sub female (rear panel),

USB connector: Type B (rear panel)
Size (W x H x D) 108 mm x 35 mm x 136 mm (incl. connectors)
Operating temperature 0…70 °C

Getting Started

1. Connect the “MEphisto Scope 1” to a USB port of your PC using the USB cable

included with the device. ⇒ The hardware wizard will automatically detect the
new USB device and will display the message “New hardware found”. The follow­ing description is to be orientated towards Windows XP but is also valid for

2. Insert the installation CD-ROM included with the package into the CD drive of

older Windows versions in an analog way. However the dialogs may differ slightly
depending on your Windows version.

your computer.

3. In the hardware wizard select the option “Search for a suitable driver for my
device (recommended)” and click “Next”. If Windows displays a message, telling
you the driver is not Microsoft certied, just skip this window.

⇒ The system driver will be installed and the entry “MEphisto Scope 1” will be

added in the device manager under the device class “Meilhaus DAQ Boards”.

4. End the installation of the system driver by „Finish“ and continue with the installa­tion of the “MEphistoLab” software as follows:

5. With the CD still inserted in your drive, navigate to the directory [CD drive]:
\software\MEphistoLab\disk1 and start the installation of the “MEphistoLab”
software by double-clicking the le “setup.exe”.

! Please read the dialogs of the installation program carefully. If required, the

Agilent VEE runtime software will be installed automatically.

⇒ After the installation has nished you will nd the “MEphistoLab” software in

your Windows “Start” menu under “Programs - Meilhaus MEphistoLab”.

Digital I/O

• 24 digital I/Os

• Each bit can be congured
as input or output

• Signal level: +5 V (CMOS)

Pinout of the 26-pin D-sub
female connector:

Volt Meter

• 2 channel voltmeter with
pointer meter display

• Voltage range:
±100 mV, ±1 V, ±10 V

• Hold function

Oscilloscope

• 2 channel USB scope

• Time base: 1 µs…2 s

• Voltage: 200 mV…20 V

• Continuous or “single shot”
measurement

• X and Y cursor display

• Time/spectrum graph

• Trigger types: Level, edge,
window, slope (dU/dt),
external (pin 26), manual

• „Print Screen“ functiom

• Export to Microsoft Excel™
compatible CSV format

• Conguration can be stored