Model R7150
INSTRUMENTS
Contact /
Non-Contact
Tachometer
with Laser
Instruction
Manual
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INSTRUMENTS
Table of Contents
Features ......................................................................................... 2
Specications .............................................................................2-3
Instrument Description ..................................................................4
Operating Procedures ................................................................4-5
Battery Replacement ..................................................................... 6
Features
• Dual function unit with both contact and non-contact capabilities
• Provides fast and accurate RPM measurements of rotating objects and
surface speed measurements MPM (meter per min) and FPM (feet per
min)
• Laser provides improved accuracy at a greater distance
• Internal memory recalls min/max and last value
• Large LCD Display reverses depending on measurement mode
• Includes reective tape, large and small cone tip adapters, funnel
adapter, wheel adapter, batteries, and hard carrying case
Specifications
RPM Range (Contact): 0.5 to 19,999
RPM Range (Photo): 10 to 99,999
Surface Speed Range: 0.05 to 1,999.9 m/min
0.2 to 6,560 ft/min
Resolution: Photo: 0.1 RPM (≤999.9) / 1 RPM (≥1000)
Contact: 0.1 RPM (≤999.9) / 1 RPM (≥1000)
Surface: 0.01 m/min (≤99.9) / 0.1 m/min (≥100) /
0.1 ft/min (≤999.9) / 1 ft/min (≥1000)
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INSTRUMENTS
Basic Accuracy: ±(0.05% + 1 dgt.)
Visible Indicator: Yes (Laser)
Target Distance: 6.5ft (2000mm) (Photo)
Response Time: <1 sec
Sampling Time: Photo: 1 sec (over 60 RPM)
Contact: 1 sec (over 6 RPM)
Display Size/Type: 5 Digit LCD Display
Auto shut-off: Yes
Internal Memory: Max, Min and Last
Laser Class: Class II
Low Battery Indicator: Yes
Power Supply: 4 x AA Batteries
Product Certications: CE
Operating Temperature: 32 to 122°F (0 to 50°C)
Storage Temperature: -4 to 140°F (-20 to 60°C)
Operating Humidity: 10-80% RH
Dimensions: 8.5 x 2.6 x 1.5” (215 x 65 x 38 mm)
Weight: 10.6oz (300g)
Optional accessories: Replacement Measuring Wheel (AS-35)
Replacement Cone Tip (CONE)
Reective Tape (RT100)
Soft Carrying Case (CA-05A)
Soft Carrying Case (C-820)
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INSTRUMENTS
Instrument Description
1. Laser Beam
2. RPM Adapter
3. Display
4. Measure Button
5. Memory Call Button
6. Function Switch
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Operating Procedures
Photo laser tachometer measuring procedure
1. Move the Function Switch to the Photo RPM position.
2. Apply reective tape to the object being measured. Press the
Measure Button and align the Laser Beam with the applied
target. Verify that the Monitor Indicator provides a reading when
the target passes through the eld of view. Release the Measure
Button when the reading stabilizes.
Note: If the measured RPM value is very low ( ie: 50 RPM ), we recommend
attaching more Reflective tape.
Contact tachometer measuring procedure
RPM measurement
1. Move the Function Switch to the Contact RPM position.
2. Press the Measure Button and lightly pressing the RPM Adapter
against the rotating axis. Release the Measure Button when the
reading stabilizes.
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INSTRUMENTS
Surface Speed Measurement
1. Move the Function Switch to the m/min. or ft/min. position.
2. Press the Measure Button and attach the surface speed test
wheel to the detector. Release the Measure Button when the
reading stabilizes.
Operation procedure for memory recall
1. Last value, Max. value and min. value are automatically stored
in memory.
2. To recall measurements saved in memory:
a. Push the Memory Call Button - To display the last
value ( LA and the last value will be displayed alternately).
b. Push the Memory Call Button again - To display
the maximum value (UP and the max. value will be
displayed alternately).
c. Push the Memory Call Button again - To display the
minimum value ( dn and the min. value will be displayed
alternately).
Max Value
Display
reading
Min Value
Measuring Time
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Last Value
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INSTRUMENTS
Battery Replacement
• When the LCD displays LO, it is necessary to replace the batteries,
however in-spec measurements may still be made for several hours
after the low battery indicator appears.
• Open the Battery Cover, using a at screwdriver or small coin.
• Replace batteries correctly and place the cover back on.
For service on this or any other REED product or information on other
REED products, contact REED Instruments at info@reedinstruments.com
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