Copyright: MultiScope 22-321
Citation: MultiScope 22-321


SIMPLE Help Contents

Wittig Technologies MultiScope 22-320

with Oscilloscope Module 22-321

General Information

UL Listing	UL listing and certification
Safety Instructions	Safety instructions
Features and Introduction	Features and introduction
Care and Maintenance	Care and maintenance
Specifications	Specifications
Reset	How to reset the hardware

Help on the Toolbar

Toolbars	How to use the toolbars
Save Waveform	Save the recorded waveform and its parameter settings
Open Waveform	Open a waveform file
Comment Waveform	Save a comment with a recorded waveform
MultiScope	Using the MultiScope
Internet Options	Internet remote control options
Define Colors	Define colors for better viewing on monochrome displays
Print	Print the recorded waveform and its parameter settings
About the MultiScope	About the MultiScope
Context-Sensitive Help	Get context-sensitive help on many functions and buttons
Select Channel	Switch between CHI and CH II
How to Restore Waveforms	How to restore saved waveforms from the MultiScope
Decrease/Increase Sampling Rate	Decrease or increase the sampling rate on the selected channel
Input Voltage	Set the input voltage on the selected channel
Input Coupling	Set the input coupling on channel 1
Trigger Settings	Set the trigger configurations
Hold for Reference	Hold a recorded signal for reference

Help on the Graph

MS321 Parameters	Parameters set in the MultiScope
Graph	Graph waveforms and other information
DUAL and CHI mode	Dual and single channel mode
Show/Hide Vertical Cursor	Vertical cursors to measure signal length (time measurement)
Show/Hide Horizontal Cursors	Horizontal cursors to measure signal voltages (volt measurement)
Grid Settings	Set grid configurations
Scroll Bar	How to use the scroll bar with the memory depth set to 8192
Status Bar	Display information about the application’s current status
Save as Bitmap	Save the recorded waveform in a bitmap file

MultiScope and Oscilloscope Module

Serial Data Protocol	Detailed list of serial data protocol to communicate with the MultiScope
Using the MultiScope	How to use the MultiScope
Connecting Power	How to connect an external power supply or install batteries
Connecting to a PC	How to connect the MultiScope to a PC
Channel Isolation	How channels and the MultiScope are isolated for safe use
Connecting a Signal Probe	How to connect and calibrate the signal probe
Changing a Module	How to change a module
Main Screen	Main screen on the MultiScope display
Menu Screen	Menu screen on the MultiScope display
Move Trigger, Cursor and Zero Lines	How to move trigger, cursor and zero line
Trigger Configurations	How to set the trigger configurations
Display Backlight	How to use the display backlight
Input Coupling	How to set the input coupling
DUAL and CHI	How to enable and disable channels on the display
Single/Run	How to use the single shot and continuous run modes
Input Voltage	How to set the input voltages
Sampling Rate	How to set the sampling rates
Cursor On/Off	How to enable and disable cursors
Grid	How to set the grids
Beep	How to enable and disable the beeper
Battery Gauge	How to enable and disable the battery gauge
Save/Load	How to save and load recorded signals


Input coupling

Input Coupling (Input Coupling)

This function lets you setting the input coupling on channel 1 or 2 to AC or DC.

When set to AC, the DC portion of the signal at the probe tip is set to zero. At this setting, a pure AC signal appears on the graph.

When set to DC, the signal at the probe tip is not falsified.

If the extended toolbar is displayed, you may select the input coupling with:

The shortcut keys are:

CTRL+C 	for coupling channel 1

CTRL+SHIFT+C 	for coupling channel 2


Delta time

Delta time (Measuring with cursors)

This Time Measurement Window shows the difference between the vertical cursors in seconds or in Hertz.

Also see Vertical Cursors.


Delta Volt

Delta Volt (Measuring with cursors)

The Voltage Measurement Window shows the difference between the horizontal cursors in Volts.

Also see Horizontal Cursors.


Switch between Second and Hertz

Switch Between Seconds and Hertz (Measuring with cursors)

Use this function to switch between seconds and Hertz.

The shortcut key is CTRL+E

Also see Vertical Cursors.


Switch between Voltage 1 and 2

Switch Between Voltage 1 and 2 (Measuring with cursors)

Use this function to switch between voltages for channels 1 and 2.

The shortcut key is 1

The shortcut key is 2

Also see Horizontal Cursors.


Single shot and continuous run

Single Shot and Continuous Run (Trigger)

Use this function to switch between Single Shot and Continuous Run when set to Trigger on Channel 1.

If the extended toolbar is displayed, you may select this function with:

The shortcut key is CTRL+M

Also see Trigger.

Note: Zero lines and trigger mark are rough indicators, only.

Displayed signal may be displace from indicator up to +/-10% .


Positive or negative transition

Positive and Negative Transitions (Trigger)

Use this function to switch between negative and positive signal transitions, when the scope is set to Trigger on channel 1.

If the extended toolbar is displayed, you may select this function with:

The shortcut key is CTRL+L

Also see Trigger.

Note: Zero lines and trigger mark are rough indicators, only.

Displayed signal may be displace from indicator up to +/-10% .


Free run or trigger on channel 1

Free Run or Trigger on Channel 1 (Trigger)

Use this function to switch between Free Run and Continuous Run when the scope is set to Trigger on Channel 1.

If the extended toolbar is displayed, you may select this function with:

The shortcut key is CTRL+T

Also see Trigger.

Note: Zero lines and trigger mark are rough indicators, only.

Displayed signal may be displace from indicator up to +/-10% .


Serial Data Protocol

Serial Data Protocol (Hardware)

Position

0	0 - 0FFH	Vertical Cursor 1, Low Byte

1	0 - 1	Vertical Cursor 1, High Byte

2	0 - 0FFH	Vertical Cursor 2, Low Byte

3	0 - 1	Vertical Cursor 2, High Byte

4	0 - 3FH	Horizontal Cursor 1

5	0 - 3FH	Horizontal Cursor 2

6	bit0	Vertical Cursor Show/Hide

bit1 	Horizontal Cursor Show/Hide

bit2	Grid Show/Hide

bit3	Beeper On/Off

bit4	Battery Gauge On/Off

bit5	Display Backlight On/Off

bit6	Disable Channel 1

bit7	Disable Channel 2

7	bit0	AC/DC

bit1 	Single/Run

bit2	+/- Transition

bit3	Free Run/Trigger

bit4	Battery 1

bit5	Battery 2

bit6	External Power/ Battery On

bit7	Power Down  (Stand-by)

8	0 - 18H	Sampling Rate

9	0 - 6	Input Voltage 1

10	0 - 6	Input Voltage 2

11	0 - 0FFH	Trigger Position, Low Byte

12	0 - 1	Trigger Position, High Byte

13	0 - 0FFH	Trigger Level

14	0 - 0FFH	Zero Level 1

15	0 - 0FFH	Zero Level 2

16	X	Reserved

17 - 31	X	Reserved


MultiScope Options
 MultiScope Options (Options)

This window lets you define several options for the MultiScope application software.

•	Show and hide extended toolbar (specific toolbar for the oscilloscope module)

•	Enable/disable help as the mouse moves. When enabled, you receive small help flags when you move the mouse over an item.


Internet Remote Control
Internet Options (remote control options)

This window lets you work with the Internet remote control.

1) Establish serial communication between the MultiScope and PC.

2) Click the "phone" toolbar button to open the Internet Remote control (shortcut key is CTRL+I).

3) Click "connect" button; the IP address of your computer should appear in the edit window automatically.

4) Click Exit

5) Enter IP address via any Internet Application, such as the MS Internet Explorer or Netscape
using the IP address of the computer the MultiScope is attached to.
example:    http://10.201.1.10

6) Calling the computer should show the actual recording signal on your scope.

7) Repeat by pressing "Send" on the Internet Page.


Using the MultiScope (MultiScope Hardware)

The MultiScope can run a firmware application, such as the MultiScope Oscilloscope, only if the module is plugged into the scope.

Important: Never switch on the scope without a module plugged into the scope. See Changing a Module.

Once you have switched on the scope, a title screen indicates the
connected module and displays the serial and firmware version number.


Connecting Power

Connecting Power (MultiScope Hardware)

You can power the MultiScope from:

•	the supplied AC adapter

•	six AA batteries

Using Batteries

Your scope requires 6 AA batteries (not supplied) for power. For the best performance and longest life, we recommend alkaline batteries.

Cautions:

•	Use only fresh batteries of the required size and recommended type.

•	Do not mix old and new batteries, different types of batteries (standard, alkaline, or rechargeable), or rechargeable batteries of different capacities.

Follow these steps to install batteries.

1. Make sure the scope’s power is off.

2. Remove the rubber protection cover, then open the battery compartment cover by pressing down the latch at the top of the cover.

3. Place the batteries in the compartment as indicated by the illustration inside.

4. Replace the cover.

When the scope stops operating properly, replace the batteries.

Warning: Dispose of old batteries promptly and properly. Do not burn or bury them.

Caution: If you do not plan to use the scope with batteries for a month or longer, remove the batteries. Batteries can leak chemicals that can destroy electronic parts.

Using the AC Adapter

You can power the scope using the supplied 12V/500mA AC adapter.

Cautions:

•	You must use a Class 2 power source that supplies between 7V and 15V DC and delivers at least 750 mA. Its center tip must be set to positive and its plug must fit the scope's 12VDC 500mA jack. The supplied adapter meets these specifications. Using an adapter that does not meet these specifications could damage the scope or the adapter.

•	Always connect the AC adapter to the scope before you connect it to AC power. When you finish, disconnect the adapter from AC power before you disconnect it from the scope.

Follow these steps to connect the AC adapter:

1. Make sure the scope’s power is off.

2. Insert the barrel plug into the scope’s power jack.

3. Connect the AC adapter’s power module to a standard AC outlet.


Connecting to a PC

Connecting to a Computer (MultiScope Hardware)

1.	Plug the supplied serial cable’s 9-pin female connector into your computer’s 9-pin male serial port connector.

Note: If your computer has a 25-pin serial port connector, you can use a 9-pin to 25-pin adapter cable available at Wittig Technologies AG.

2.	Insert the supplied serial cable’s telephone plug into the scope’s serial connector.


Connecting the Signal Probe (MultiScope Hardware)

The provided signal probe is a passive high impedance oscilloscope probe designed and calibrated for use on instruments having an input impedance of 1 MOhm shunted by 20 pF. However, it may be compensated for use with instruments having an input capacitance of 10–35 pF. The probe has a two-position slide switch in the head that selects an attenuation of x1 (1:1) or x10 (10:1).

Follow these steps to connect the probe:

1.	Connect the supplied black signal cable to the CH 1 or the CH 2 jack on the top of the oscilloscope module.

2.	Connect the ground lead with the alligator clip to Ground (0 Volt).

3.	Select the probe’s attenuation using the switch in the head of the probe.

Warning: Never exceed a voltage of 40 Vpk/ DC between the signal tip and ground when the signal probe’s attenuator switch is set to x1. If this switch is set to x10, never exceed a voltage of 400 Vpk/DC between the signal tip and ground.

Compensation Adjustment

In order to obtain the correct division ratio with each oscilloscope, you must adjust the attenuation network. To compensate the probe to your oscilloscope, apply a 1KHz square wave to the probe tip to display a few cycles of the waveform, then adjust the trimmer located in the probe head for a flat topped square wave.


Changing a module

Changing a module (MultiScope Hardware)

1.	Make sure the scope’s power is off.

Cautions:

•	Do not attempt to insert or change modules while the scope is switched on. Doing so will damage your MultiScope.

•	Disconnect any line or cable attached to a module before changing it.

2.	Insert the module as shown below.


Main Screen

Main Screen (MultiScope Hardware)

All function keys available on the main screen are shown below:


Menu Screen

Menu Screen (MultiScope Hardware)

All function keys available on the menu screen are shown below:

Switching Between the Main and Menu Screens

Press MENU/ENTER to switch between the main and menu screens.


Move vertical cursors

Moving the Vertical Cursors, Horizontal Cursors, and Zero Lines (MultiScope Hardware)

1.	Press C to activate the cursors or 0 to activate the zero lines before moving them on the main screen.

1.	Press 1 or 2 to select vertical and horizontal cursors 1 or 2, or to select zero line 1 or 2.

1.	Move the cursors using the arrow keys or move the zero line using the up and down arrow keys.

1.	The difference between the two vertical cursors is displayed on the right side of the display as ?t in seconds.

1.	The difference between the two horizontal cursors is displayed on the right side of the display as ?V1.

Note: You can only move the vertical and horizontal cursors from the main screen.


Move trigger, cursors and zero line

Setting Trigger Position and Trigger Level (MultiScope Hardware)

The trigger level corresponds to the trigger source selected on the menu screen. When the trigger is set to FREE RUN, the trigger symbol is not displayed and the trigger positioning is not processed.

1. If the trigger is not set to FREE RUN, press TRIGGER (.) to activate trigger movement before positioning the trigger.

2. Position the trigger and the trigger level using the arrow keys.

Note: The trigger position range is in the first 256 samples on the display.
Zero lines and trigger mark are rough indicators, only.
Displayed signal may be displace from indicator up to +/-10%.

Note: The trigger level settings range from above the zero line
and 7bit above the zero line in 4-dots-steps (PC screen resolution).


Trigger definitions

Trigger definitions (MultiScope Hardware)

A trigger source selection determines how a received pulse or signal is to be monitored or measured. The three selectable trigger sources are:

FREE RUN	The MultiScope continuously measures and records signals regardless of whether a trigger event occurs or not.
+TRG 1	The scope records signals only when the defined trigger event occurs. The signal is recorded when the trigger level is equal to the incoming signal and the signal is rising.
-TRG 1	The scope records signals only when the defined trigger event occurs. The signal is recorded when the trigger level is equal to the incoming signal and the signal is falling.
Note: The trigger position range is in the first 256 samples on the display.
Zero lines and trigger mark are rough indicators, only.
Displayed signal may be displace from indicator up to +/-10%.

Note: The trigger level settings range from above the zero line
and 7bit above the zero line in 4-dots-steps (PC screen resolution).


Display Backlight (MultiScope Hardware)

LCD ON/OFF — Press the up or down arrow keys to turn the display on and off.

Note: When the display backlight is on and you run the scope without an external AC adapter, the batteries will run out much sooner than when the display backlight is off.


Input coupling

Input Coupling (MultiScope Hardware)

AC/DC — Press the up or down arrow keys to switch between AC/DC coupling on channel 1 or 2. Press 1 or 2 to select the channel.


Enable/disable channels

Enable/Disable Channels (MultiScope Hardware)

DUAL	Enables both channels on the display.
CH I	disables channel 2 Press the up or down arrow keys to select the channel to be displayed.


Single Shot/Run mode

Single Shot and Continuous Run Modes (MultiScope Hardware)

The trigger mode determines when a new measurement is to be taken and displayed. The two available trigger modes are:

RUN: The scope records a new signal every time the defined trigger event occurs. Use this mode to measure or monitor a continuously running signal.

SINGLE: The scope records a new signal each time you activate the trigger (by pressing the F1 button in the main screen) and the defined trigger event occurs. Use this mode to measure or monitor a signal that occurs only once, such as the noise heard when you turn on an electronic device.

Note: Zero lines and trigger mark are rough indicators, only.

Displayed signal may be displace from indicator up to +/-10% .


Input voltage

Input voltage (MultiScope Hardware)

Press the up or down arrow keys to select the input voltage on channel 1 or channel 2, depending on the menu cursor focus.

Input Voltage on Channel 1 or 2

0.1 V/Div	100 mV per Division
0.2 V/Div	200 mV per Division
0.5 V/Div	500 mV per Division
1V/Div	1V per Division
2V/Div	2V per Division
5V/Div	5V per Division
Cautions:

•	Use only test leads and test lead adapters supplied with the MultiScope.

•	If you do not know the level of the voltage to measure in manual range control, always start at the highest range (5V/div) and switch your signal probe to x10.

•	Remove all test leads that are not in use.

•	Never try to measure an AC peak-to-peak or a DC voltage that exceeds 40 volts if the attenuation switch on the probe is set to x1.

•	Never try to measure an AC peak-to-peak or a DC voltage that exceeds 400 volts, if the attenuation switch on the probe is set to x10.


Sampling rate

Sampling Rate (MultiScope Hardware)

Press the up or down arrow keys to select the sampling rate.

Sampling Rates for Channel 1 or 2

0.5uS/Div	20 million samples per second
1uS/Div	10 million samples per second
2uS/Div	5 million samples per second
5uS/Div	2 million samples per second
10uS/Div	1 million samples per second
20uS/Div	500,000 samples per second
50uS/Div	200,000 samples per second
0.1mS/Div	100,000 samples per second
0.2mS/Div	50,000 samples per second
0.5mS/Div	20,000 samples per second
1mS/Div	10,000 samples per second
2mS/Div	5,000 samples per second
5mS/Div	2,000 samples per second
10mS/Div	1,000 samples per second
20mS/Div	500 samples per second
50mS/Div	200 samples per second
0.1S/Div	100 samples per second
0.2S/Div	50 samples per second


Grid

Grid (MultiScope Hardware)

GRID ON/OFF — Press the up or down arrow keys to turn the grid on and off.


Beeper

Beeper (MultiScope Hardware)

BEEPER ON/OFF — Press the up or down arrow keys to turn the beeper on and off.


Battery Gauge

Battery Gauge (MultiScope Hardware)

BATT ON/OFF — Press the up or down arrow keys to turn the battery gauge on and off.


Save and load

Save and load  (MultiScope Hardware)

SAVE s1/s2: Press the up or down arrow keys to select one of the two memory locations to save the recorded signal. Press ENTER/MENU to save.

SAVE pa1/pa2/pa3/pa4: Press the up or down arrow keys to select one of the four memory locations to save the parameter settings only. Press ENTER/MENU to save.

LOAD s1/s2: Press the up or down arrow keys to select a signal to load from one of the memory locations. Press ENTER/MENU to load.

LOAD pa1/pa2/pa3/pa4: Press the up or down arrow keys to select parameter settings to load from one of the memory locations. Press ENTER/ MENU to load.


Cursor On/Off

Cursor On/Off (General Information)

CURS OFF — Lets you disable all cursors to measure voltages and delta time.

CURS V12 — Lets you enable horizontal cursors to measure delta voltages.

CURS T12 — Lets you enable vertical cursors to measure delta time.

CURS ALL — Lets you enable all cursors to measure voltages and delta time.


UL listing

UL listing  (General Information)

The Wittig MultiScope Master Unit 22-320 and the Oscilloscope Module 22-321

are listed at Underwriter’s Laboratories UL New York, and are therefore signed off to be a safe product for the end user.

Modifying or tampering with the MultiScope’s internal components can cause a malfunction and might invalidate your MultiScope’s warranty. If your MultiScope is not performing as it should, take it to Wittig Technologies for assistance.

This is not an user serviceable product.

UL control No.: 90MA


Safety Instructions

Safety Instructions (General Information)

Warning:   Use extreme caution in the use of this device. Improper use of this device can result in injury or death. Follow all the safeguards suggested in this owner’s manual in addition to normal safety precautions in dealing with electrical circuits. Do not use this device if you are unfamiliar with electrical circuits and testing procedures.

This is not an user serviceable product.

This MultiScope is designed to ensure the safest operation possible. However, safe operation depends on you, the operator. Make sure you follow these simple safety rules:

•	Read all of these instructions carefully, and save them for your reference.

•	Follow all warnings and instructions marked on the scope.

•	When making voltage measurements, never touch the scope’s probe tip or a hot wire in AC wiring
circuits.If you do, you could receive an electric shock.

•	Use only test leads and test lead adapters supplied with the scope.

•	Remove all test leads that are not in use.

•	Always discharge filter capacitors in the circuit under test before you attach the scope.
If the scope touches an undischarged capacitor, it could damage it. If you touch an undischarged
capacitor, you could receive an electric shock.

•	Always turn off power and disconnect the scope before you change power sources.

•	Because many AC/DC sets have a potentially hot chassis, be sure the top of your workbench and the
floor underneath it are made of nonconductive materials.

•	Unplug the scope before cleaning it. Do not use liquid or aerosol cleaners. Use a damp cloth for
cleaning and then wipe it dry immediately.

•	Do not use the scope near water (for example, a bathtub, washbowl, kitchen sink, laundry tub, wet
basement, or swimming pool).

•	Do not use unapproved attachments.

•	The scope should be operated from a 7 to 15V DC power source, such as a battery or a 12V DC
power supply.

•	Do not allow anything to rest on the power cord. Do not locate the power supply where people might
walk on the cord.

•	If your scope doesn’t operate normally, in particular if any unusual sounds or smells come from it,
immediately unplug it and contact Wittig Technologies for assistance.

•	Do not attempt to service the scope yourself. Opening or removing the cover can expose you to
dangerous voltage or other hazards.

•	Unplug the scope from the DC power source and refer servicing to qualified service personnel under
the following conditions:

•	if the power cord is damaged or frayed

•	if the scope has been exposed to rain or water

•	if the scope does not operate normally and you are following the operating instructions

•	if the scope has been dropped or damaged

•	if the scope exhibits a distinct change in performance

•	This scope is fully calibrated and tested. Under normal use, no further internal adjustment should
be necessary. Adjust only those controls covered by the operating instructions. Improper adjustment
of other controls might result in damage and might require extensive work by a qualified technician
to restore the scope to normal operation. If the scope should require repair, do not try to repair it
yourself. Take it to Wittig Technologies for assistance.


Features and Introduction
Features (General Information)

Your Wittig MultiScope with Oscilloscope Module is a microprocessor-controlled dual channel storage oscilloscope with a backlit display. The scope can be powered by six AA batteries or with the supplied AC adapter and has an optical isolated serial interface to communicate with any PC running on Windows. All oscilloscope parameters are menu-driven and selected either by its keys or with a connected PC.

By replacing the supplied oscilloscope module with other modules, your scope can function as a logic analyzer, frequency counter, function generator, bit pattern generator, multimeter, signal generator/analyzer, spectrum analyzer, long-term temperature analyzer, pressure analyzer or any other module available at Wittig Technologies.

The MultiScope includes these features:

Dual Channel — lets you display two channels simultaneously on the display or on the screen of a connected PC.

Optical and Galvanic Isolation — lets you safely operate the unit when measuring voltages above 42V through galvanic isolation of both channels and optical isolation to the serial communication line.

Second Sampling Rate on Channel 2 — lets you magnify signals when the trigger event occurs due to
different sampling rate on channels 1 and 2.

Auto Setting — lets you display signals without manually changing the input voltages channel 1 and 2 or sampling rate channel 1.

18 Selectable Sampling Rates — let you record signals from once every 2.7 min. to once every 50 ns.

Flexible Triggering — lets you trigger on a negative or positive signal transition on channel 1.

Selectable Trigger Levels — let you select different trigger levels in the range of the input voltage selected.

Trigger Delay — lets you display the measuring signal before the trigger event occurs.

Selectable Input Ranges — let you select the range of the measuring signal for the most accurate readings.

Selectable Input Coupling — lets you select whether the signal to be measured is DC or AC, and provides a zero reference for zero adjustment on channel 1 or 2.

Signal Ground Line — lets you easily reference the incoming signals.

Multiple Input Power Sources — let you connect 7 to 15V of external power from an AC or DC adapter.

Battery-Powered — lets you run the scope from six AA batteries.

Software Interface — lets you use your computer to display, save, load, print, and control the recorded measurements with the optical isolated serial PC interface.

To use this scope’s software with Microsoft Windows95/98, the computer must have at least:

•	80386 CPU

•	1.2 MB of available hard disk storage space

•	Windows95 or later

Selectable Display Colors — lets you change the oscilloscope display colors for easier viewing of dual signals when using a computer monitor.

Carrying Case — lets you store all of your scope’s accessories.

Rubber Protection Cover — protects your scope.


Care and maintenance

Care (General Information)

Keep the scope dry; if it gets wet, wipe it dry immediately. Use and store the scope only in normal temperature environments. Handle the scope carefully; do not drop it. Keep the scope away from dust and dirt, and wipe it with a damp cloth occasionally to keep it looking new.

Modifying or tampering with the scope’s internal components can cause a malfunction and invalidate its warranty. If your scope is not performing as it should, take it to Wittig Technologies for assistance.


Specifications

Specifications (General Information)

MultiScope 22-320

Display Resolution	128 × 64 Dots, Monochrome
Display Backlight	LED, Green
Serial Interface	RS232, Opto-Isolated, 56K Baud, 8 Data
Serial Cable	Included, 6 Ft
Keyboard	25 Function Silicone Keys
Power Supply
Battery	6 × 1.5V AA
Battery Life Oscilloscope Module	6h [5h] Typical for Alkaline Batteries Cat.No. 23-882  (Depending on Usage and Display Backlight Switched Off[ON])
AC Adapter	Included
Dimensions
Scope	(200 × 90 × 55 mm)
Carrying Case	Included, Space for Scope, 4 Modules, Accessories/Cables and AC Adapter (200 × 90 × 55 mm)
Weight	750g
Operating Environment	Full Accuracy from 0 to 40°C, Full Accuracy to 80% RH (Non-condensing) at 30°C
Storage Environment	0 to 40°C
Certifications	CE, IEC1010, UL Control #90MA
Rubber Protection Boot	Included
35	MultiScope Oscilloscope Module 22-321

Channel	2, Independently Floating Isolated
Sampling Rate Channel 1	50 ns (20 MSa/s) to 20 ms
Sampling Rate Channel 2	50 ns (20 MSa/s) to 20 ms
	Second Sampling Rate on Channel 2 to Magnify Recorded Signal on Channel 1
Coupling	AC/DC Channel 1 and 2
Input Impedance	1 MOhm/60 pF
Probe set to 1:1	10 MOhm/30 pF
Probe set to 1:10
Sensitivity	2 mV to 40V, (100 mV to 5 V/div in [1,2,5] Steps)
Max. Input Voltage
Without Probe	40V
With Probe 1:10	400V
Resolution	8 Bit
Max. vertical Move	+/-4 Divisions
Scope Modes	Normal and Single Shot
True Sampling Rates
Normal	0.5µs to 200 ms/div
Single Shot	0.5µs to 200 ms/div
Sampling Rate Accuracy	>+/-0.5%
Horizontal Move	25 Divisions
Trigger	Free Run or on Trigger
Trigger Source	On Channel 1, Neg./Positive Transition
Trigger Level	7 bit resolution
Trigger Delay	16 Steps
Memory Depth	128, 256, 512 or 8 KB Samples/Channel, Selectable
Auto Setting	For Sampling Rate Channels 1, Input Voltage Channels 1 and 2
Firmware	Vertical/Horizontal Cursors, All Parameters Selectable by Scope or With PC Attached, Numerical Measurement, Trigger/Zero Level Cursors, Select Keyboard Click, Cursors, Grid, Display back light, Store Recorded Data.
PC Software	On 3.5” Disk, Running Under Windows95/98/NT, Internet Remote-Control, Function With Internet, Printing Recorded Data, Serial Data Protocol Published.
Signal Probes	2 Included, 1:1/10:1 Selectable,4 Ft,  Max. 400V, Cat.No.: 22-321
Dimensions Module	(70 × 70 × 27 mm)
Operating Environment	Full Accuracy from 0 to 40°C
Storage Environment	0 to 40°C
Certifications	CE, IEC1010, UL Control #90MA


Channel Isolation
Channel Isolation (MultiScope Hardware)

Channel 1 and 2 are independently isolated to make the MultiScope as safe as possible to the user.

The Oscilloscope Module has two completely independent floating isolated channels, which means

each channel has its own separate ground lead. Each channel must be grounded individually to accurately measure and record waveforms.

The scope’s serial interface is optically isolated to prevent damage to a PC attached to its serial interface. This is necessary to compensate for future modules that do not have separate isolations inside the module as the oscilloscope module does.


How to reset the hardware

Resetting the Scope (MultiScope Hardware)

If the scope malfunctions, follow these steps to reset it.

I. Short cut reset

1. 	Switch off the scope.

2. 	Disconnect the scope from your PC.

3.	Hold down ”1” on the scope as you switch on the scope.

4.	Switch off the scope.

5.	Switch on the scope.

6.	All parameter setting are reset.

If the scope still malfunctions after resetting it, try a total reset as discribed below.

II. Total reset by downloading new firmware

1.	Switch off the scope.

2.	Plug the supplied serial cable’s 9-pin female connector into your computer’s 9-pin male serial port

connector.

3.	Insert the supplied serial cable’s telephone plug into the scope’s serial connector.

4.	Start the scope’s application software.

5.	Open the Scope Window (shortcut key is CTRL+U).

6.	Select the COM port.

7.	Select the firmware in the Download window.

8.	Hold down ENTER/MENU on the scope as you switch on the scope.

9.	Click Download in the Download window. The firmware begins downloading.

10.	The scope sounds a steady tone to indicate that the download is complete. Switch off the scope.

If the scope still malfunctions after resetting it, try again or contact Wittig Technologies for
assistance.


How to restore saved waveforms from Master Unit

 How to restore saved waveforms from the Master Unit (MultiScope Hardware)

Use this function to restore previously saved waveforms from the Master Unit. Click the toolbar button and select waveform 1 or 2 that has been previously stored with the module function SAVE/LOAD.


Context-sensitve help
MultiScope context-sensitive help (General help)

You pointed on a none specific context to obtain help !

Also see .Get context-sensitive help.


Vertical cursor
Vertical Cursor (Graph)

Use the vertical cursors to measure a signal length expressed in the Time Measurement window in seconds or in Hertz.

0	Press Seconds/Hertz in the Time Measurement window to switch between seconds and Hertz.

Also see Switch Between Seconds and Hertz.

The shortcut key is CTRL+V


Select Grid
 Select Grid (Graph)

This button lets you vary the shape of the grid.

Each vertical line corresponds to 32 recorded samples.

Each horizontal line corresponds to a 32-bit voltage resolved portion of the recorded signal.

You can define the grid as:

None:	No grid defined

Frame:	A frame is displayed on the graph

The shortcut key is CTRL+G.


Show/hide vertical cursor

 Show/Hide Vertical Cursor (Graph)

This button lets you show and hide the vertical cursors. The difference between the two cursors is displayed in the time measurement window in seconds or in Hertz.

After you click this button and the vertical cursors appear, simply click on either vertical cursor and hold down the left mouse button while moving the mouse to the left or right. When the cursor reaches the desired location, release the left mouse button.

The shortcut keys are:

Key	Purpose

CTRL+V	Show/hide the cursors

CURSOR→	Move the cursor 1 right
SHIFT+CURSOR→	Move the cursor 2 right

CURSOR←	Move the cursor 1 left
SHIFT+CURSOR←	Move the cursor 2 left

Also see Switch Between Seconds and Hertz.


 Save Waveform (Toolbar)

Use this command to save a file. The Save File Dialog appears so you can search for the file's name and

choose its directory.

Shortcut key is CTRL+S


Save as BMP

Save as Bitmap

Use this command to save the waveform on the screen as a bitmap file that can be

opened in Microsoft Paint.


MS321v20 Parameters

MS321 Parameters

Use the right mouse button as a shortcut to open parameter settings.


Status Bar

The status bar appears in the lower part of the screen.

It shows:

•	The current channel

•	Delta V (the difference between the horizontal cursors)

•	Delta t (the difference between the vertical cursors)

•	Help and status messages


Save File Dialog

Save File Dialog (Windows Help)

The following options allow you to specify the name and location of the file you are saving:

File Name

Type a new file name to save a document with a different name.  A file name can contain up to eight characters and an extension of up to three characters. The MultiScope adds the extension you specify in the Save File As Type box.

Drives

Select the drive in which you want to save the document.

Directories

Select the directory in which you want to save the document.


Open waveform

 Open Waveform (Toolbar)

Use this command to load an existing file. The Open File Dialog appears so you can search for the file's name and change its directory if necessary.

Shortcut key is CTRL+O


Open File Dialog

Open File Dialog (Windows Help)

The following options allow you to open a file:

File Name

Type or select the name of the file you want to open.  This box lists files with the extension you select in the List Files of Type box.

Drives

Select the drive with the file you want to open.

Directories

Select the directory with the file you want to open.


Comment actual waveform

 Comment Waveform (Toolbar)

Use this option to save a comment with the opened file. You may type up to 128 characters. The comment is automatically stored with the file and will be printed when you run the print function.

Shortcut key is CTRL+Z


Options used in this application

 Options (Toolbar)

The Open Dialog Window appears as follows:

0

1	Always on Top 	keeps the application window at the top of the desktop

2	Help by Moving the Mouse 	shows help messages when you move the mouse over any item

3	Show/Hide Toolbar 	shows or hides the toolbar

4	Show/Hide Status Bar 	shows or hides the status bar

5	Enable Filter 	filters the visible signal from noise

Shortcut key is CTRL+N


Master Unit

 MultiScope (Toolbar)

Use this dialog to set all the parameters needed to communicate with the MultiScope.

Shortcut key is CTRL+U

Select COM port:

Use this option to select a serial communication port for the MultiScope.

Download new firmware:

Use this function to download a new firmware version for the module plugged into the MultiScope. Be sure to select the right firmware for this module. To select the appropriate firmware for the module you are using, simply follow these simple rules:

example: 	MS321v108.HEX	MS stands for MultiScope

321 stands for Oscilloscope Module Catalog No. 22-321
(see label on module to clarify the Catalog No.)
v stands for version
108 stands for version 1.08

Module Functions:

Use these buttons to set module options and functions such as grid, beeper, battery gauge, display backlight, or memory depth.

Note: The higher you set the memory depth, the slower the waveforms are refreshed on your PC screen.
Also note, that you can select from 4 different memory depths, when the master unit is attached to the PC.
If not attached to the PC, the Memory Depth is set to 256.

Changing Your Personal ID:

To change your personal ID, enter your password in the password window. You may define a personal ID of up to 16 characters. Click Change to download the new name. The unit starts beeping. Switch off the scope.

Your personal ID appears on the start up screen every time you switch on the scope.

Note: This function is only enabled when the unit is attached to the PC.

Changing Your Password:

To change your MultiScope password, insert your old password and click Password. Enter a
new password and repeat it as requested. Click OK. The unit starts beeping. Switch off the scope.
The new password is stored in the scope.

Note: The initial password is 22-321. This function is enabled only when the scope is attached to the PC.


Toolbar

Toolbar (Toolbar)

0	The toolbar is displayed across the top of the application window. It provides quick mouse access to many tools used with the MultiScope.

You can hide or show the toolbar through the options on the toolbar, [image],

or through File/Options.

The shortcut key is CTRL+N.


Define MultiScope Application colors

 Define Colors (Toolbar)

Click this button to define the colors in your MultiScope application software.

You can change the color of the signal background, waveform, cursors, grid and more.  Select one of the items and click any colored button. The color you click is displayed in a small rectangle near the item you selected.

Press OK to confirm the new colors.

Press Default to restore the original colors.

The shortcut key is CTRL+F.


Print actual waveform

 Print (Toolbar)

Use this command to print the recorded waveform and all of its parameter settings.


Selecting a Channel

 Select Channel 1-2

Use this command to toggle channel 1 or 2.

The shortcut key is 1
The shortcut key is 2

 Select Seconds or Hertz

Use this command to measure delta t in seconds or in hertz.
The deltas appearing in the status bar are referenced to the channel selected.

The shortcut key is CTRL+E


About the WTT MultiScope

 About the MultiScope (Toolbar)

Use this command to display the copyright notice and version number of your MultiScope.


The scroll Bar

Scroll Bar(Graph)

The Scroll bar is only available when the memory depth is set to 8192.

It gives you the following options:

Right/Left — scrolls the visible portion of the window to the right or left.

Fast Right/Left — press the scrollbar at the right or left edge of the window to scroll faster in that direction.

Right Mouse Button — press the right mouse button to go directly to a memory location.

You can also move through the memory by moving the vertical cursors to the edge

of the visible portion of window and forcing the screen to scroll.


Get context-sensitive help

 Context-Sensitive Help (Toolbar)

0	Use the Context Help command to obtain help on any MultiScope software function. When you choose Context Help on the toolbar, the mouse pointer changes to an arrow and question mark. Click anywhere in the MultiScope application window, such as on another toolbar button.  The help topic for the item you click appears.

The shortcut key is SHIFT+F1


Clear/restore Graph

 DUAL and CHI mode (Graph)

This function lets you run the unit in dual or single channel mode.

The shortcut key is CTRL+BACK SPACE


Show/hide horizontal cursor
 Show/Hide Horizontal Cursor (Graph)

This button lets you show and hide the horizontal cursors. The difference between the two cursors is displayed in the voltage measurement window in Volts.

After you click this button and the horizontal cursors appear, click on either horizontal cursor and hold down the left mouse button while moving the mouse up or down. When the cursor reaches the desired location, release the left mouse button.

The shortcut keys are:

Key	Purpose

CTRL+H	Show/hide the cursors

CURSOR↑	Move the cursor 1 up
SHIFT+ CURSOR↑	Move the cursor 2 up

CURSOR↓	Move the cursor 1 down
SHIFT+ CURSOR↓	Move the cursor 2 down

Also see Input Voltage.


Horizontal cursor
Horizontal Cursor (Graph)

Use the horizontal cursors to measure a voltage expressed in the Voltage Measurement window in Volts.

0	Press V1/V2 in the Voltage Measurement window to switch between the voltage settings for channel 1 and 2. Also see Switch between Voltage 1 and 2.

The shortcut key is CTRL+H


Graph
Graph (Graph)

The graph is the window that displays the recorded signals on channel 1 and 2.

It also shows the trigger, trigger level, cursors, and zero lines, if set.

To show/hide the vertical cursor, 	see Show/Hide Vertical Cursor.

To show/hide the horizontal cursor, 	see Show/Hide Horizontal Cursor.

To select grid, 	see Show/Hide Grid.

To show/hide trigger, 	see Trigger.

To select graph colors, 	see Define MultiScope Application Colors.

To switch DUAL and Single Channel Mode,	see DUAL and CHI mode.

Note: Zero lines and trigger mark are rough indicators, only.

Displayed signal may be displace from indicator up to +/-10% .


Sampling Rate

You may select up to 18 different sampling rates from 50 ns to 20 ms.
The table below displays the sampling rates:

True 	MultiScope
Sampling Rate	Sampling Rate

50ns	0.5µs/div
100ns	1µs/div
200ns	2µs/div
0.5µs	5µs/div
1µs	10µs/div
2µs	20µs/div
5µs	50µs/div
10µs	0.1ms/div
20µs	0.2ms/div
50µs	0.5ms/div
0.1ms	1ms/div
0.2ms	2ms/div
0.5ms	5ms/div
1ms	10ms/div
2ms	20ms/div
5ms	50ms/div
10ms	0.1s/div
20ms	0.2s/div

The shortcut keys are:

CTRL+B 	Increment sampling rate 1
CTRL+SHIFT+B 	Decrement sampling rate 1
CTRL+D 	Increment sampling rate 2
CTRL+SHIFT+D 	Decrement sampling rate 2

Note: Sampling rate 1 is the master clock and corresponds to the channel 1 sampling rate. Sampling rate 2 is the slave clock and corresponds to the channel 2 sampling rate. Sampling rate 2 can only be set faster than sampling rate 1.

To measure a signal length between two cursors, see Vertical cursors


Input Voltage
Input Voltage (Input Voltage)

Use these buttons to select the input voltage for channel 1 and 2.

WARNING:

•	If you do not know the voltage you are measuring, set the input voltage to its maximum (5V/div) and set the probe attenuator to x10.

•	Never exceed a voltage of 400Vpk/DC between the probe tip and ground.

Otherwise, you risk an electrical shock that may cause injury or death to you and damage to your environment. It may also damage your MultiScope and oscilloscope module, and will invalidate your warranty.

Note: Due to the low resolution of the LCD (64 dots vertically = 6bit),

the measuring results to be less accurate than using the PC-Software screen (8bit) resolution.

The shortcut keys are:

CTRL+1 Set voltage on channel 1

CTRL+2 Set voltage on channel 2

If the extended toolbar is displayed, click the toolbar button
to select the input voltage for each channel.  Also see Toolbar/Extended Toolbar.


Trigger

Trigger (Trigger)

You may select from several trigger configurations, such as triggering on a positive or negative

signal transition, different trigger levels, or a trigger that is positioned anywhere in the memory (graph). You may select Single Shot or Continuous Run mode.

All trigger configurations are selectable only on channel 1.

Free Run

When set to Free Run, the oscilloscope module has no defined trigger and records signals continuously. Every time a new signal is recorded, the signal is automatically refreshed on the graph.

Trigger on Channel 1

When the module is set to Trigger on Channel 1, the signal will automatically be refreshed on the graph every time a selected trigger event occurs.

If the extended toolbar is displayed, you may select your trigger configuration with these

toolbar buttons:

switches between Free Run and Trigger on Channel 1.
The shortcut key is CTRL+T

switches between negative and positive signal transition when Trigger on Channel 1 is set.
The shortcut key is CTRL+L

switches between Single Shot and Continuous Run modes.
The shortcut key is CTRL+M

Setting trigger position and trigger level:

 A small trigger symbol appears in the graph when
Trigger on channel 1 is set.

Click on this trigger symbol and hold down the left mouse button while moving the mouse. When the trigger reaches the desired location, release the left mouse button.

Move the trigger right or left to set the trigger delay.

Move the trigger up or down to set the trigger level.

Note: The trigger position range is in the first 256 samples on the display.
Zero lines and trigger mark are rough indicators, only.
Displayed signal may be displace from indicator up to +/-10%.

Note: The trigger level settings range from above the zero line
and 7bit above the zero line in 4-dots-steps (PC screen resolution).


Hold Reference
 Hold Reference Signal (Graph)

Use this button to hold and clear a recorded signal for reference.

The shortcut key is CTRL+J