28119 Parallax Inc, 28119 Datasheet - Page 16

• Manufacturer Part Number: 28119
• Description: KIT UNDERSTANDING SIGNALS
• Manufacturer: Parallax Inc

Specifications of 28119

• Lead Free Status: Contains lead
• Accessory Type: Oscilloscope
• Interface Type: USB
• For Use With/related Products: BASIC Stamp® 2 and Board of Education
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

The Vertical dial, representing volts per division, sets the voltage scale on which the input
signal will be displayed. Example: if the Vertical dial is set to 2 V (2 V/Div) and the signal
displayed is 2½ divisions above the channel indicator, then the voltage of that input
channel is equal to 5 Volts. It is possible to have different scales set for each signal, so
that while Channel 1 is set to 2 V per division you can have Channel 2 set to 5 V per
division.
The channel buttons, CH1 and CH2 , select the active channel. The active channel is the last
channel button clicked (with the green LED), and is also the selected channel for the
Vertical dial, cursors, and automatic measurements in the display screen. The OFF button
will turn off the active channel.
The Run/Stop button starts and stops the OPTAscope 81M. When the button is pressed,
the OPTAscope 81M acquires data as indicated by the green LED in the button. To stop
Figure 1-6:
Horizontal, Vertical, FFT
and Run/Stop controls