Tenma 72-9355 - Power Source; Maintenance

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Power Source
Mains voltage 100-240V AC rms 45-440Hz, CAT II
Power consumption Less than 20VA.
DC power supply 72-9355 / 72-9360 : 3h / 72-9365 : 2h
Environmental
Temperature
Operating: 0
o
C - 40
o
C (32
o
F - 104
o
F)
Storage -20
o
C - 60
o
C (4
o
F - 140
o
F)
Cooling method Natural cooling
Humidity
<35
o
C: ≤90%RH (<95
o
F ≤90%RH)
+35
o
C~40
o
C: ≤ 60%RH (<95
o
F~104
o
F ≤ 60%RH)
Altitude
Operating: under 3000m
Non-operating: under 15,000m
Dimensions
Width 168mm
Height 268mm
Depth 60mm
Weight 1.8kg unit only, 4.5kg total
IP rating IP2X
Adjustment interval Recommended calibration interval is one year
MAINTENANCE
Cleaning
• Periodically wipe the case with damp cloth and mild detergent. Do not use
abrasives or solvents for cleaning. Disconnect from the mains rst.
• Clean the measurement probe tips occasionally, as dirt on the probes can affect
reading accuracy.
• Take care to avoid scratching the glass display when cleaning the LCD.
• Do not leave the oscilloscope where the LCD screen will be exposed to strong
direct sunlight for long periods.
AC current measurement
(external module)
Range : 6mA, 60mA, 600mA, 6A, 10A
Precision : ± (2% + 5 quantization words)
Capacitance measurement
Range : 6nF, 60nF, 600nF, 6uF, 60uF, 600uF, 6mF
Precision : 6nF ± (4% + 10 quantization words)
6mF ± (5% + 10 quantization words)
Others : ± (4% + 10 quantization words)
Measurement modes
Auto/manual
(Only manual mode is available for current measurement)
Maximum display number 5999