Extech RPM33: Combination Contact/Laser Photo Tachometer

Key Features

  • Large 5 digit backlit LCD display
  • Microprocessor based with quartz crystal oscillator to maintain high accuracy
  • Store/recall 10 data sets in memory with 4 parameters (measurement, max, min and average)
  • Wide RPM (photo and contact) and Linear Surface Speed/Length (contact) measurements
  • Laser guided for greater distance non-contact measurements up to 1.6ft (500mm)
  • Complete with contact wheel for rpm or linear surface speed/length, 9V battery, reflective tape and soft case

SPECIFICATIONS EXTECH RPM33: COMBINATION CONTACT/LASER PHOTO TACHOMETER

  • General Specifications
 Time base: Quartz crystal
Display: 5‐digit LCD Display
Laser light source: Class 2 laser < 1mW power; Wavelength is 630 to 670nm
Detecting Distance: 50 to 500mm (2 to 20″)
Sampling Time: 0.5 seconds (over 120 rpm)
Tachometer accuracy: ± (0.05% reading + 1digit)
Memory Extech RPM33: Measurement data are stored in ‘reading sets’. A reading set consists of one (1) instantaneous measurement plus MIN/MAX/AVG readings. Ten (10) ‘reading sets’ are available per measurement session
Operating Conditions: 0 °C to 50 °C (32 °F to 122 °F); RH 80% Max
Power Supply: 9V battery
Power Consumption: 45mA DC approximately
Weight: 151g (5.3oz.)
Size: 160 x 60 x 42 mm (6.2 x 2.3 x 1.6″)

  • Measurement Range Specifications
Range Resolution Accuracy
Photo‐Tachometer
Revolutions per minute 2 to 99,999 RPM 0.1 rpm (2.0 to 9999.9 RPM) 1 rpm (> 9999 rPm)* 0.05% of reading + 1 digit

 

Frequency 0 to 1666 Hz 1 Hz
Contact‐Tachometer
Revolutions per minute 2 to 19,999 rpm 0.1 rpm (2.0 to 9999.9 RPM) 1 rpm (> 9999 rPm)* 0.05% of reading + 1 digit
Surface Speed Extech RPM33 0 to 2000 meters per minute 1 m/min
0 to 78,720 inches per minute 1 in/min
0 to 6560 feet per minute 1 ft/min
0 to 2186 yards per minute 1 yd/min
Length

(using circumference wheel attachment)

0.1 to 1000 meters 0.1 meter

 

3.9 to 39,370 inches 0.1 inch up to 9999.9 1 inch > 9999
0.3 to 3280 feet 0.1 inch
0.1 to 1093 yards 0.1 yard
Revolutions (counter for custom sized wheels) 0 to 99,9999 Revolutions 1 revolution (REV)
Frequency 0 to 1666 Hz 1 Hz

Introduction Extech RPM33

Quickly measure RPM, surface speed and length with one tool

The RPM33 provides both contact (2 to 19,999 rpm) and non-contact (2 to 99,999 rpm) RPM measurements for enhanced versatility. Laser guided non-contact RPM measurements taken up to 1.6-foot (500mm) away for added safety. Readings are displayed on the large five-digit backlit LCD. Store/recall 10 data sets in memory with 4 parameters (measurement, max, min and average). Comes with contact wheel for linear surface speed (0.2 to 6560 feet/minute; 0 to 1999.9 meters/minute) or RPM measurements, 9-volt battery, reflective tape, carrying case, and user manual.

Features Extech RPM33

– Large 5 digit backlit LCD display
– Microprocessor based with quartz crystal oscillator to maintain high accuracy
– Store/recall 10 data sets in memory with 4 parameters (measurement, max, min and average)
– Provides wide RPM (photo and contact) and Linear Surface Speed/Length (contact) measurements
– Laser guided for greater distance non-contact measurements up to 1.6ft (500mm)
– Complete with contact wheel for rpm or linear surface speed/length, 9V battery, reflective tape and soft case
Brand

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