461830 Datasheet, PDF (4/8 Pages) Extech Instruments Corporation. – Digital Stroboscope Tachometer

Specifications
General Specifications
Circuit
Display
Measurement unit
Operating Temperature
Operating Humidity
Power Supply
Power Consumption
Weight
Dimensions
Housing construction
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^oF (0 to 50^oC)
< 80% RH
110VAC (461830) or 220VAC (461831) 50/60Hz ±10%
<25 watts @ 115V
2.2 lbs. (1kg)
8.3 x 4.8 x 4.8" (21 x 12 x 12cm)
Impact resistant plastic with plastic lens and mirrored reflectors
Electrical Specifications
Measurement Range
Resolution
Accuracy
Sampling Time
Strobe Flash adjust range
Strobe Flash tube type
Strobe Flash duration
Strobe Flash Energy
Strobe Beam Angle
Strobe Flash Color
100 to 10,000 RPM/FPM
0.1 (<1000 RPM/FPM)
1 (1000 to 9999 RPM/FPM)
10 (10,000 RPM/FPM)
± (0.05% + 1 digits)
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^oK
Notes: Replace the Xenon lamp when readings appear irregular. To prolong the Xenon lamp
life and ensure safe operation, please adhere to the following recommendations.
• A 30-minute use limit < 3000rpm and 5-minute use limit > 3000rpm exists. Do not use
the instrument for periods longer than specified otherwise damage to the instrument
may result.
• Always permit a 10-minute cool-down between cycles.
• Do not touch the Xenon flash tube.
4 Model 461830/461831 Version 2.2 November 2003