X-Stream Operator’s Manual 
WM-OM-E Rev I  251 
1.  In the menu bar touch Utilities; then touch Preferences in the drop-down menu. 
2. Touch the Acquisition tab. 
3. Under Delay Setting constant in:, touch either the Div or Volts button. 
Trigger Counter 
Checking the Reset trigger counter before starting a new acquisition checkbox clears the 
trigger counter each time the scope issues an arm acquisition command. This applies when you 
have set a trigger Holdoff condition in the Trigger dialog in either time or events: 
 
The default condition of this control is off (unchecked). 
Performance Optimization 
You can set up the scope to optimize either calculating speed or display speed. If the display 
update rate is of primary concern to you, optimize for Display. If acquisition and analysis are more 
important, optimize for analysis. Optimizing for analysis can be useful when persistence or 
averaging is used, giving higher priority to waveform acquisition at the expense of display update 
rate. 
The choices are presented as a spectrum with highest values at the extremes: 
 
1.  In the menu bar touch Utilities; then touch Preferences in the drop-down menu. 
2.  Touch one of the optimization icons. 
E-mail 
Before you can send e-mail from the scope, it must first be configured. 
1.  In the menu bar touch Utilities, then Preference Setup... in the drop-down menu. 
2. Touch the E-mail tab. 
3.  Choose an e-mail server protocol: MAPI (Messaging Application Programming Interface) 
is the Microsoft interface specification that allows different messaging and workgroup 
applications (including e-mail, voice mail, and fax) to work through a single client, such as 
the Exchange client included with Windows 95 and Windows NT. MAPI uses the default 
Windows e-mail application (usually Outlook Express). SMTP (Simple Mail Transfer 
Protocol) is a TCP/IP protocol for sending messages from one computer to another 
through a network. This protocol is used on the Internet to route e-mail. In many cases no