Lab Scope - Snap-On Modis Ultra User Manual

Scope Multimeter

8.1.3 Lab Scope

Similar to the GMM, the lab scope (oscilloscope) plots a visual image line of a signal's
measurements over time on a two-dimensional grid. The visual line that is displayed is commonly
called a trace, and the graphical form created by a signal is called a waveform.
Unlike the DMM, the lab scope allows you to visually see a signals waveform, which in turn allows
you to see the strength and shape of the signal, as well as any noise that may be occurring on the
circuit. The lab scope also samples signals at a high rate, which allows you to see a higher level
of detail in short samples of the signal, especially in signals that change rapidly. In addition, the lab
scope also provides more control over the acquisition of the signal and in how it is displayed,
through the use of triggers and channel controls. All of these features allow you to analyze signals
in great detail when performing diagnostics.
To use the lab scope, select the Scope Multimeter icon from the home screen then select Lab
Scope from the menu. See
available testing functions.
Specifications
Signal
Measurement
Sample Rate
Band Width
Input Impedance
VDC (Full Scale)
VAC (Full Scale)
Low Amp Probe
1. Do not use the Low Amp Probe to measure current on conductors at a potential greater than
46VAC peak or 70VDC.
Tests and Capabilities (Quick
Function
Ch. 1— (yellow jack)
Ch. 2— (green jack)
For 50µS sweep 6 (MS/s)
For 100µS sweep 3 (MS/s)
For all other sweeps 1.5 (MS/s)
3 MHz
10 MΩ @ DC
4 kΩ @ 3 MHz
100mV–400V
100mV–400V
20A scale (100mV/Amp)
40A scale (10mV/Amp)
60A scale (10mV/Amp)
Range
Each channel input is referenced to common
ground (GND— black jack).
Continuous sampling,
(MS/s) = mega samples per second
3 db point @ 3 MHz
Channel 1 and 2
Do not measure greater than 75VDC.
Do not measure greater than 50 VAC (rms).
Connect the positive (+) Amp Probe lead to
the yellow jack on the diagnostic tool for
values on Ch.1, or to the green jack for
values on Ch. 2. Connect the negative (–)
lead to GND (black jack)
69
Reference)‚ on page 70 for a list of
Accuracy/Comments
1
.
Overview