The Checkline CDT-2000HD Combination Hand-Held Digital Tachometer combines the best features of both contact and non-contact models to accurately measure RPM, surface speed and length. When using the non-contact mode, rotational speed (RPM) is measured using a visible beam of light. The CDT-2000HD can be up to 24 inches away from the small piece of reflective tape that is affixed to the rotating element. In the contact operating mode, the speed is sensed by directly contacting rotating device using one of the contact adapters supplied with the instrument. The CDT-2000HD's rugged construction, portability and outstanding features make It an ideal choice for maintenance personnel, machine operators or others in a wide variety of machinery and material handling applications. 
Features
- Measures speeds from as low as 1.00 rpm up to 99,999 rpm
- Accuracy of 0.02% with a resolution of 0.01 RPM
- Includes NIST calibration Certificate
- Built-in memory stores maximum, minimum, average and last reading for recall to the display
- NEW - Molded Rubber Shell Provides Additional Physical & Environmental Protection
- NEW - Now includes larger 6 inch circumference Surface Speed Wheel standard
- NEW - Can be set for use with 2 optional-sized surface speed wheels (12 inch or 10 cm circumference)
LCD Display
Units of Measure Indicators show the user-selected units of measure.
Low Battery Indicator alerts the operator if the batteries are low.
On-Target Indicator confirms that the measurements are reliable. |  |
Memory Indicators are illuminated when the maximum, minimum, average and last readings are recalled to the display for viewing.
Applications
Complete Kit
The CDT-2000HD includes the Tachometer, Slide-In Contact Adapter, 6" Universal Surface Speed Wheel, Cone Tip Adapter, Reflective Tape, Two (2) AA Batteries (1.5 V) and Operating Instruction Manual -- all supplied in a foam-fitted, hard-plastic Carrying Case. 
Measuring Ranges
| RPM | | Optical | 1-99,999 | | Mechanical | 1-19,9999 | | | | Surface Speed | 6"* (Standard) | 12"* | 0.1 m* | | m/min | 0.10-1,524 | 0.40-609.6 | 0.10-1,999 | | ft/min | 0.40-5,000 | 0.40-2,000 | 0.40-6,550 | | in/min | 4.00-60,000 | 4.00-24,000 | 4.00-78,700 | | m/sec | 0.10-25.40 | 0.10-10.16 | 0.10-33.30 | | ft/sec | 0.10-83.33 | 0.10-33.33 | 0.10-109 | | | | Total Length | | Meters | 99,999 | | Feet | 99,999 | | Inches | 99,999 | | *Note: Sizes listed are the circumference of measuring wheel |
Specifications
| RPM | Non-Contact: 1.00 - 99,999 rpm
Contact: 1.00 - 19,999 rpm | | Surface Speed | 0.30 - 6,500 feet/min
0.10 - 1,999 meters/min
4.0 - 78,000 inches/min | | Length | 0.01 - 99,999 feet
0.02 - 99,999 meters
1.0 - 99,999 inches | | Resolution | .01 from 0 - 100
.1 from 100 - 1,000
1 from 1000 - 99,999 | | Accuracy | 0.02% of reading or 1 digit | | Display | 5 - Digit LCD, 10mm high | | Decimal Point | Automatic | | Memory System | Maximum, minimum, and last reading (retained in memory for the life of the batteries) | | Measurement System | Non-Contact: Visible LED light beam
Contact: Contact adapter | | Engineering Units | RPM: RPM
Surface Speed: Ft/min, inch/min & meters/min
Length: Feet, inches, meters | | Sensing Distance | Up to 24 inches (60 cm) | Display Update
Time | 0.5 seconds or one measuring | | Auto Power Off | After 30 seconds of non-use (minimum, maximum and last reading retained in memory) | | Battery Life | 40 hours continuous use | | Battery | 2 AA (1.5 V) or rechargeable | | Weight | 6 ounces (170 grams) | | Housing Material | ABS Plastic housing with removable protective rubber shell | Operating Temp | 32 to 122 F (0 to 50 C) | | Storage Temp | -4 to 150 F (-20 to 70 C) | | Accessories | Contact adapter, cone tip, universal surface speed wheel, reflective tape, operating instructions and foam-fitted, hard plastic carrying case | | Optional Accessories | Shaft extension, 3.15 inches (80 mm) | | Warranty | 5 years |
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