Basic Info.
Precision Measuring Device
Not Precision Measuring Device
Special Function
Measurement Units Selection / Zero Calib
Other Accessory
1 Iron Base and 1 Aluminium Base
Product Description
RM-660 coating thickness gauge adapts principles of electromagnetic induction and magnetic induced edd-current. It can measure the thickness of non-metal coatings on metal surface. Press the button to select magnetic metal or non-magnetic metal. It is a ideal instrument in manufacture, metal machining industry, chemical industry and commodity inspection, especially in automobile trading.
RM-660 has been designed as a user friendly and economical way, with the function of LCD displaying and measurement data maintaining automatically. It has the advantages of easy operation, rapid measurement, safe usage and portability.
Coating Thickness Measurement
1. Press the measuremnt button "C" to power on the unit and press the button "B" to
choose metal type, then press button "D" to choose measurement units;
2. Remove the protection cap in the front of the unit;
3. Press the detector on the measured surface, the thickness of coatings on metal surface
will display on the LCD screen.
4. Remove from the measured surface quickly, the measurement value will be held on the LCD screen.
5. Removing from the measured surface, the unit will power off automatically if no operation in 1 mins.
Operation Notes
1. When the battery voltage is low, low battery indicator will display on LCD after turn on the unit or during the usage. Please replace the battery. Rotate the battery cover through a angle to remove the battery cover when replace the battery.
2. After every battery replacement, wait for about 15s to stabilize the power source stable, then power on the unit.
3 . The measurement way of the unit is easy, free, rapid and direct. The measurement data will lose permanently after the unit power off.
4. Please put back the protection cap after use.
5.To ensure the measurement prescision, zero calibrate before measurement. Choose iron
base or non-iron base and keep the probe touching with the measured object, keeping press the button "D", release the button when "CAL" shows on the screen. Leave the base plate until the screen displays 0.00. Then, make measurement after zero calibration finished.
Notes: Calibration is not requested for each measuring. It is only needed when out of accuracy.
Factors Affecting the Measuring Precision
1. The magneic nature of metal base
Measuring the thickness with magnetic method can be affected by the change of base metal's magnetic field (in pratical application, the magnetic change of mild steel can be considered as slight). To avoid the effect of heat treatment and cold processing, we should calibrate the unit with the standard tablet which has the same magnetic nature with base metal specimen.
2. The electric nature of metal base
The conductivity of base metal has the effect on measurement. And the conductivity of base metal has connection with its composition and heat treatment method. Calibrate the unit with the standard tablet which has the same electric nature with base metal specimen.
3. The thickness of metal base
Every unit has a critical base metal thickness. If above this thickness, the
measurement will not be attected by the thickness of base metal.
4. Edge effect
The unit is sensitive to the specimen's surface shape. Therefore, the result is unreliable if approaching the specimen's edge or inner corner.
5. Curvature
The curvature of the specimen has an effect on the measurement. And the effect is always increasing obviously with the derease of curvature radius, Therefore, the measuremment is not reliable for the flexible specimen.
6. Deformation of specimen
The detector can distort the specimen with soft coating. Therefore, the datum are unreliable that measured from these specimens.
7. Surface roughness
The base metal and the surface roughness degree has effects on the measurement. The effect increases as the roughness degree increases. The rough surface can cause the system error and accidental error. When make every measurement, add the measuring times on different positions to avoid the accidental error. If the base metal is rough, select several positions to calibrate the unit's zero point from the base metal which is uncoated and has the similar roughness, or calibrate the unit's zero point after using the liquor which has no corrosion to the base metal to dissolve the coating
8. Magnetic field
The strong magetic field produced by the all kinds of surrounding electrical
equipments can severly disturb the thickness measurement with magnetic method.
9. Attached materials
The unit is sensitive to the attached materials which obstruct the detector to touch with the coating surface closely. So, the attached materials must be removed to make sure the detector touches with the measured specimen directly.
10. The detector's pressure
How much pressure the detector takes on the specimen will also affect the readings. So, keeping the pressure constant is necessary.
11. The detector's orientation
The detector's placing method has influences on the measurement. During the measurement, make the detector vertical to the specimen's surface.
Rules that must be followed when use the instrument
1. The feature of base metal
For the magnetic method, the magnetism and surface roughness of standard tablet's base metal shoud be similar to the specimen's base metal.
For the eddy method, the electric nature of the standard tablet's base metal should be similar to the specimen's base metal.
2. The thickness of base metal
Check if the base metal's thickness exceeds the critical thickness. If not, we can calibrate as the ways in "CAUTIONS"
3. Edge effect
Don't measure the specimen's mutation position, for example, edge, hole and inner corner.
4. Curvature
Don't make measurement on the curved surface of specimen.
5. Reading times
Pick up some readings in every measurement area as every reading is different and the coating thickness exists local differences. It's also the same when the surface is rough.
6. Surface clearness
Before measurement, clear away any materials on the material, for instance, dust, grease and corrosive. But, any coating materials can't be removed.
Maintenance
1. Tool service must be performed only by qualified repair personnel. Performed by untrained repair personnel could result in injury.
2. To avoid damages to the instrument, do not use it near following places:
a. Environment has vapor and dust;
b. EMF places(Electro-magnetic fields: such as arc welders, induction heaters);
c. Static environment;
d. Heat shock (by abrupt temperature changes, allow 30 minutes for unit to stabilize before use.);
e. Keep the unit away from high temperature objects. Keep clean and avoid shock and wet. Using the wet sponge or soft cloth touching soapy water or clear water to clean the unit.
Address:
13th Layer, 5th Building, Wanda Plaza, No. 68 Zhushan Road, Jiangning District, Nanjing, Jiangsu, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Consumer Electronics, Electrical & Electronics, Industrial Equipment & Components, Instruments & Meters, Service, Tools & Hardware
Management System Certification:
ISO 9001
Company Introduction:
Nanjing Licheng Electronic Technology Co., Ltd. Was Established In 2014,
Specializing In The Production of Electronic Meters, Such As Multimeters, Clamp meter, Volt meter, Temperature Measuring Guns, Rangefinders, Thickness gauges, Ground resistance tester, humidity datalogger, Sockets Tester.
Our Brand RICHMETERS Has Been Well-Known By Users All Over The World For Many Years.
In the future, We Will Continue To Innovate And Make Better Products,
If You Want To OEM Buy or Wholesale Electric tester, clamp meter, Thermometer, Distance Meter And etc., We Are The Best Supplier In This Area, Our Custometer comes from United States Of America, Brazil, Argentina, France, Germany, Russian, Poland, Ukraine, India, Pakistan.
Our Group Export department also has 10 years experience in hand tools such as Drills, hammer, screwdriver, cutting wheel, brush, pliers, trolley, grinding
We support small quantity orders or OEM orders. FOB DAP CIF as you required
Look Forward to Cooperating With You.