THM500 Series Specifications
Bench Test Instruments and Handheld Oscilloscopes Basic Service
7
Table 3: Scope specifications (cont.)
565560550
Waveform display
Display Update Rate Dynamic Display Digital Signal Processing maps up to 750 waveforms/s on
screen, simulating an analog-like display.
D D D
Memories
Setups Each setup memory stores the complete state of the instrument, including the
multimeter state.
4 4 8
Waveforms Each waveform memory stores all waveform points and the scale of the selected
waveform.
4 4 8
Screens Each screen memory stores the exact information displayed on screen
(snapshot).
1 1 8
Table 4: General specifications
550
560 565
Clock
D
Real Time Provides date and time stamp capability for line test events and saved
waveforms.
D D D
Display system
Display Type Super Twisted Liquid Crystal Display
D D D
Size Width: 120 mm (4.72 inch)
Height: 60 mm (2.36 inch)
D D D
Display Resolution 256 pixels horizontal × 128 pixels vertical
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Contrast User adjustable
D D D
Backlight Electroluminescent
D
Waveform Graticule 8 divisions vertical × 10 divisions horizontal
Default = crosshair, grid, or none
1 vertical division = 15 pixels
1 horizontal division = 25 pixels
D D D
Power source
Batteries Six AA cells (9 V nominal)
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Battery Life (Typical) 4.5 hours continuous operation with alkaline cells (backlight off). Tested using
RAYOVACR Alkaline MAXIMUMT batteries. Battery life extended when used
intermittently.
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Battery Saver User adjusted battery saver feature turns the instrument off after five minutes
and the backlight off after one minute.
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Memory Retention Time Memory hold-up time following battery removal: eight minutes minimum, three
hours typical. Memory retention extended (weeks or months) if discharged
batteries remain installed.
D D D