4139
J. GLITCH CAPTURE 440 APPLICATIONS
The 440 Glitch Capture feature can be used to look at
the applications listed below. Set-up the 440 as follows:
Set-up Procedure:
1. Set the rotary switch to the desired function depending
on the device being measured (ACV, DCV, ACA, DCA).
2. Push RGE button to manually select the correct range by
pushing the F1 or F2 buttons then push EXIT.
3. Press the D MODE button.
4. Press the SCOPE (F3) button.
5. Adjust the TIME BASE (F1) and TRIGGER LEVEL(F2).
(Note: Trigger level must be set slightly above normal
signal level to capture a spike.)
6. Push GLITCH CAP (F4).
6. 440 will display the waveform measured when triggered.
Applications:
1. Industrial Motor Controls
a) SCR trigger pulses
2. Power Quality
a) Machine Start-up
b) Power quality interference and noise
3. Programmable Logic Controls
a) Input and output signals
b) Control signals
c) Signal conditioning circuits
d) Communication lines
e) Power supply
4. Uninterruptible Power Supplies
a) Switching circuits
5. Industrial Lighting Controls
a) SCR’s
b) Solid State circuitry
6. Line Conditioners
a) Noise
b) Quality
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