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105
V4.0
‐
March
2010
A
PPENDIX
B:
M
AINTENANCE AND
C
LEANING
M
AINTENANCE
Do not store or place this instrument where the liquid crystal display (LCD) may be
directly exposed to sunlight for extended periods
Warning:
Do not allow the instrument to become wet
Cleaning
Inspect the instrument and the probe frequently in accordance with operating
conditions. Clean the outer surface of the instrument according to the following steps:
1. Wipe the outside of the instrument and the probe using a soft cloth. Use care
when cleaning the LCD display screen.
2. Use a slightly damp cloth and mild detergent when cleaning and only clean
the instrument when it is powered down. Do not use abrasive chemical
detergents
Warning:
Before use, please confirm that the instrument is dry so as to avoid
electrical short circuits and personal injury
S
TORAGE OF
I
NSTRUMENT
If the test tool is to be stored for an extended time, the lithium battery must be
charged before storage
Summary of Contents for HOS-MS420
Page 11: ...10 V5 1 March 2010 FRONT PANEL AND KEYPAD OVERVIEW Figure 3 ...
Page 32: ...31 V5 1 March 2010 Figure 20 AC Coupling ...
Page 72: ...71 V5 1 March 2010 Fig 42 Rectangle window Fig 43 Blackman window Fig 44 Hanning window ...
Page 79: ...78 V5 1 March 2010 ...
Page 85: ...84 V5 1 March 2010 Figure 4 Continuity Test ...
Page 89: ...88 V5 1 March 2010 ...
Page 91: ...90 V5 1 March 2010 Figure 10 400mA AC Current Measurement ...
Page 95: ...94 V5 1 March 2010 ...