User's Guide Model RPM10 Laser Photo / Contact Tachometer with IR Thermometer Patented
Introduction Congratulations on your purchase of Extech's Laser Photo/Contact Tachometer with NonContact IR Thermometer, Model RPM10. This Tachometer provides contact RPM and Linear Surface Speed measurements, non-contact RPM measurements and IR temperature measurements. The laser pointer beam provides accurate long distance measurements for photo tachometer measurements and also identifies the measurement spot for the non-contact temperature tests.
Meter Description 1. Photo Tachometer sensor, IR Thermometer sensor and laser source 2. MEASURE button 3. IR Thermometer button 4. Memory button 1 2 3 5. Function Switch 6. Battery compartment (rear) 7. Contact Tachometer shaft 4 5 6 7 3 RPM10-EU_ENG V2.
Meter Operation Reversible LCD Display The meter display indicates Photo Tachometer and IR thermometer measurements in one direction and Contact measurements in the opposite direction. This permits the user to easily read the measurement digits in both measurement modes with the meter held in either direction. Temperature Units Selection Cal switch, Do not move The displayed temperature units are selected via a slide switch located in the battery compartment.
CONTACT TACHOMETER RPM MEASUREMENTS 1. Install one of the RPM contact tips on the contact shaft. 2. Move the Function switch to the CONTACT position. 3. Press the Measure button while lightly pressing the contact tip against the center of a rotating shaft. 4. Release the Measure button when the display stabilizes (approx. 2 seconds). RPM Contact Tips CONTACT LINEAR SURFACE SPEED (m/min ft/min) MEASUREMENTS 1. Install the Linear speed wheel on the contact shaft. 2.
NON-CONTACT TEMPERATURE MEASUREMENTS 1. Point the meter at the surface to be measured. 2. Press the red IR thermometer button. 3. Use the laser pointer to identify the exact spot to be measured. 4. The area of the surface to be measured must be larger than the spot size as determined by the distance to spot size specification. 5. Read the temperature in the display. WARNING: Do not directly view or direct the laser pointer at an eye.
Specifications Time base Quartz crystal 4.9152 MHz Display Reversible 5 digit 0.6" (16mm) LCD display Laser light source Less than 1mW; Class 2 red laser diode (645nm approx.) Detecting Distance 50 to 2000 mm (2 to 79") depending on ambient light and RPM Memory Last reading and MIN/MAX readings Operating Conditions 0 °C to 50 °C (32 °F to 122°F); RH 80% Max Power Supply 4 x 1.5V AA batteries Power Consumption 24mA DC approx. (>100hrs continuous use) Weight 300g (10.6oz).
Battery Replacement The low battery indication appears as “ " on the display. To replace the batteries, loosen the two Philips head screws securing the rear battery cover and lift the cover off. Replace the four 1.5V AA batteries, and replace cover.
