Extech Instruments 461830 User Manual page 3

Specifications
General Specifications
Circuit
Display
Measurement unit
Operating temperature
Operating humidity
Power supply
Power consumption
Weight
Dimensions
Construction
Electrical Specifications
Measurement range
Resolution
Accuracy
Sampling time
Adjustment range
Strobe flash tube type
Strobe flash duration
Strobe flash energy
Strobe beam angle
Strobe flash color
Notes: Replace the Xenon lamp when readings appear inaccurate or irregular. To prolong the lamp
life and ensure safe operation, follow the safety requirements, below.
• Do not exceed the test time limits. 30-minute limit < 3000 rpm and 5-minute limit > 3000 rpm.
Do not use the instrument for longer test periods; damage to the instrument may result.
• Allow a 10-minute cool-down between tests.
• Do not touch the Xenon flash tube.
Exclusive one-chip LSI circuit with crystal time base
4-digit (10,000 count; 0 to 9999) LED display
RPM (revolutions or rotations per minute) is the speed of the
moving device under test which equals the FPM rate (strobe
flashes per minute)
32 to 122 F (0 to 50
o
< 80% RH
110 V AC (461830); 220 V AC (461831); 50/60 Hz ±10%
< 25 watts @ 115V
2.0 lbs. (900 g)
8.3 x 4.7 x 5.5 in. (21 x 12 x 14 cm)
Impact resistant plastic housing, plastic lens, mirrored reflectors
100 to 10,000 RPM/FPM
0.1 (<1000 RPM/FPM)
1 (1000 to 9999 RPM/FPM)
10 (10,000 RPM/FPM)
± (0.05% of reading + 1 digit)
1 second
LOW: 100 to 1,000 RPM/FPM
HIGH: 1000 to 10,000 RPM/FPM
Xenon lamp
60 to 1000 microseconds
4 Watt-Seconds (Joules)
80
o
White 6500
3
C)
o
K
o
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