CENTECH Coating Thickness Gauge Manual

Coating thiCkness gaugeModel 95520

asseMbly and operation instruCtions

Due to continuing improvements, actual product may differ slightly from the product described herein.

®

3491 Mission Oaks Blvd., Camarillo, CA 93011

Visit our website at: http://www.harborfreight.com

to preVent serious injury, read and understand all warnings and instruCtions before use.

Copyright© 2007 by Harbor Freight Tools®. All rights reserved. No portion of this manual or any artwork contained herein may be reproduced in any shape or form without the express written consent of Harbor Freight Tools.

for technical questions or replacement parts, please call 1-800-444-3353.

SKU 95520 for technical questions, please call 1-800-444-3353.

speCifiCations

Measurement Range 0-40 mils/0-1000 µm

Accuracy±4 digits on 0 to 7.8 mils±7 digits on 0 to 199 µm±(3% + 4 digits) on 7.9 - 40 mils (200 - 1000 µm)

Temperature Coefficient±0.1% of reading change in accuracy per degree change in ambient operating temperature above 82.4° F or below 64.4° F

Response Time 1 second

Battery Requirement 9V (Included)

Calibration Plate 2” diameter steel disc .0445” Thick

Gauge Controls Calibration (“CAL”), Up-arrow, Down-arrow, Back Light, and mils/um

Weight (with battery) 4.7 oz.

save this Manual

You will need this manual for the safety warnings and precautions, assembly, oper-ating, inspection, maintenance and cleaning procedures, parts list and assembly diagram. Keep your invoice with this manual. Write the invoice number on the inside of the front cover. Write the product’s serial number in the back of the manual near the assembly dia-gram, or write month and year of purchase if product has no number. Keep this manual and invoice in a safe and dry place for future reference.

general safety rules

warning!

read and understand all instruCtionsfailure to follow all instructions listed below may result in

electric shock, fire, and/or serious injury.saVe these instruCtions

Keep your work area clean and well lit. Cluttered benches and dark areas invite accidents.

Keep children away while operating the Coating Thickness Gauge. Keep children out of the work area.

Stay alert. Do not operate the Coating Thickness Gauge while tired or under the influence of drugs, alcohol, or medication.

Do not use Gauge for applications other than intended.

Maintain the Gauge with care. Do not use a damaged Gauge. Tag a damaged Gauge “Do not use” until repaired.

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Gauge service must be performed only by qualified repair personnel. Service or maintenance performed by unqualified personnel could result in a risk of injury.

Always wear ANSI-approved impact safety goggles.

Maintain products with care. Make certain that the Gauge has a fresh battery. Inspect the Gauge periodically and, if damaged, have it repaired by an authorized technician.

Do not expose this product to rain or wet conditions. Water entering the Coating Thickness Gauge will damage it.

Do not use the Gauge:

If the battery is low

Near any explosive gasses or fumes

If any abnormal operation is detected (if in doubt about the condition of the Gauge have it serviced)

If the Battery Cover is open

Do not bump or shock the Gauge when applying it to any workpiece. Rough treat-ment may damage the highly sensitive mechanism.

Do not use the Coating Thickness Gauge near any electrical product which gener-ates a strong electromagnetic charge as this may cause errors in measurement and readout.

Do not consistently expose the Gauge to sunlight or moisture. This may damage the insulation and LCD display.

Exposure and use in changing temperatures (quick changes from hot to cold) may af-fect measurement. Allow 30 minutes in a stable setting before using the Gauge.

If condensation occurs on the sensor or readout; allow approximately 10 minutes for the condensation to clear up before use.

Do not use the Coating Thickness Gauge in wet or dusty conditions as this will damage the instrument.

unpaCkingWhen unpacking, check to make sure that the item is intact and undamaged. If any

parts are missing or broken, please call Harbor Freight Tools at the number shown on the cover of this manual as soon as possible.

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operationInstall a fresh 9V battery if needed, see next page.

Squeeze the Trigger to turn on the Gauge. Let go of the Trigger and the LCD readout will show “---” to indicate that the power is on.

If the Gauge is not used for a period of 15 seconds, it will automatically turn itself off.

Select the desired unit of measurement. Use the “MILS/µm” key to toggle between Mils. and µm. The measurement selected will show in the LCD readout.

To turn the back light on or off, use the Back Light Button-see Figure 1 below.

Calibrating the gauge

Up and down arrows

Calibration Button

LCD readout

Measurement mode

Back Light On/Off

Trigger

figure 1

Pull the Trigger to turn on the Gauge, then release the Trigger. Press down and hold the Calibration key (“CAL”) for approximately four seconds until “HOLD CAL” shows at the bottom of the LCD readout and the number “1” flashes in the readout. This indicates that the Gauge is set in calibration mode-see Figure 1.

To exit the Calibration mode, press down and hold the Calibration Key (“CAL”) as in step one.

Press the Sensor onto the bare metal portion of the Calibration Plate (included) and hold down the Trigger until a measure reading shows on the LCD readout. The calibration foil may need to be peeled out of the way briefly to allow you to measure the bare plate.

Using the up and down arrow keys (see Figure 1) set the readout to “0”. Press the “CAL” key and the readout will blink “---” three times in the LCD readout. The readout will then blink “--2”.

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Lay the Test Foil smoothly across the bare metal portion of the calibration plate. Air bubbles under the Test Foil will affect calibration.

Press the Sensor onto the Test Foil. The thickness is printed on the foil. Hold the Trigger down until the LCD shows a measurement reading.

Use the Up and Down Arrows to adjust the reading until it matches the measure-ment printed on the Test Foil.

Press the “CAL” key again. The LCD readout will flash “---” three times, and then show “--3”. Remove the Gauge from the Test Foil of the Calibration Plate.

Exit the calibration mode.

taking a Measurement

Calibrate the Gauge (see previous section).

Set the Gauge to the desired measurement mode.

Pull and release the Trigger once to turn “ON” the Gauge.

Press the Sensor onto the object to be measured.

Squeeze and hold the Trigger to measure the thickness. LCD will show a read-out.

replacing the battery

When the Battery is low or almost spent, an illustration of a battery will be displayed in the LCD readout. Replace the battery immediately when this indicator comes on.

Battery Compartment

9V Battery

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Hold the Gauge in one hand and place tip of the thumb of the other hand over the arrow of the battery compartment and pull and slide the cover down, and remove the cover.

Retract the battery from the compartment. Pry off the terminal snap connector from the old battery. While observing battery polarity, snap the terminal connector over the new battery. Slide the battery into the compartment.

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Place snap hook edge of the battery cover just below the end of the battery, and while forcing it flat against the handle, slide the cover up until it closes and locks into position.

Dispose of the old battery in accordance with local hazardous waste authority guidelines.

inspeCtion, MaintenanCe, and Cleaningwarning! Make sure the Trigger of the Gauge is in its “OFF” position before

performing any inspection, maintenance, or cleaning procedures.

protect the gauge from rough use. It is susceptible to damage from being dropped, struck with a test piece, improperly mounted or other abuse. The device is sensitive, like a watch, and should be treated accordingly.

protect the gauge from exposure to extreme heat, water or corrosive materi-als. it should be kept clean and dry. occasional cleaning with a dry, clean rag will extend its life and good appearance.

store in a dry location. keep out of the reach of children.

troubleshooting

problem possible Causes probable solutionsLCD flashes continuously

Battery power is too low. Replace Battery.

Display doesn’t change when Sensor is on workpiece

Circuit needs to be reset. Remove the battery, wait 30 seconds, replace battery and turn the Gauge “On”.

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no replacement parts are available for the Coating thickness gauge

liMited 90 day warrantyHarbor Freight Tools Co. makes every effort to assure that its products meet high

quality and durability standards, and warrants to the original purchaser that this product is free from defects in materials and workmanship for the period of 90 days from the date of purchase. This warranty does not apply to damage due directly or indirectly, to misuse, abuse, negligence or accidents, repairs or alterations outside our facilities, criminal activity, improper installation, normal wear and tear, or to lack of maintenance. We shall in no event be liable for death, injuries to persons or property, or for incidental, contingent, special or consequential damages arising from the use of our product. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation of exclusion may not apply to you. THIS WARRANTY IS ExPRESSLY IN LIEU OF ALL OTHER WARRANTIES, ExPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.

To take advantage of this warranty, the product or part must be returned to us with transportation charges prepaid. Proof of purchase date and an explanation of the com-plaint must accompany the merchandise. If our inspection verifies the defect, we will either repair or replace the product at our election or we may elect to refund the purchase price if we cannot readily and quickly provide you with a replacement. We will return repaired products at our expense, but if we determine there is no defect, or that the defect resulted from causes not within the scope of our warranty, then you must bear the cost of returning the product.

This warranty gives you specific legal rights and you may also have other rights which vary from state to state.

3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353

CENTECH Coating Thickness Gauge Manual

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