Check-line DCF-900 Manual de usuario

– 16 – – 1 –

NOTES

OI-809F

TABLE OF CONTENTS

Page

1.0 Introduction & Quick Start Instructions . . . . . . . . . . . . . . . . . . . . . . 2

2.0 Operating Principle & Applications . . . . . . . . . . . . . . . . . . . . . . . . . 3

3.0 Equipment Supplied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3.1 Standard Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2 Optional Calibration Standards . . . . . . . . . . . . . . . . . . . . .

4.0 Front Panel Layout and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . 5

5.0 Operating Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

5.1 Handle Probes Carefully . . . . . . . . . . . . . . . . . . . . . . . . . .

5.2 Taking Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.3 Notes on Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.0 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

6.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.2 Checking Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.3 Changing Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.4 Notes on Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.0 Changing Units of Measure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

8.0 Changing the Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

9.0. Maintenance, Spare Parts & Service . . . . . . . . . . . . . . . . . . . . . . . . 13

9.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9.2 Spare Parts & Service . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10.0 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

11.0 Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

IMPORTANT: These instructions apply to both the DCF-900 and DCN-900

gauges except where noted otherwise.

–2 – – 15 –

1.0. Introduction & Quick Start Instructions

The DCF-900 and DCN-900 Coating Thickness Gauges represent the

latest technology for the non-destructive measurement of coatings and

plating. While both gauges are very easy and convenient to use, the

first-time user should read this entire manual before operating the

gauge for the first time to minimize operating problems and to fully

utilize the instrument’s capabilities. A glance through the Table of

Contents will outline the areas covered by this manual and will give

the user a quick indication of where answers may be found to questions

that may arise in the future.

QUICK START OPERATING INSTRUCTIONS

1. Press ON key. LCD display shows

ru.n or run.

2. Place probe tip in contact with part being

checked, pressing down slightly until the

V-notched shell is flush with the surface.

A reading in mils XX.X or microns XXX

will appear.

3. Note reading and lift probe.

4. For additional tests, repeat steps 2 & 3.

GAUGE AUTOMATICALLY POWERS OFF

AFTER 90 SECONDS OF NON-USE

NOTE: This gauge normally doesn't require calibration

before use. To verify or change calibration – or change

units (mils vs. microns) – See User’s Guide

ELECTROMATIC Equipment Co., Inc.

Cedarhurst, NY 11516 –USA

TEL 516-295-4300 •FAX 516-295-4399

11.0 Limited Warranty

ELECTROMATIC Equipment Co., Inc. (ELECTROMATIC) warrants to the original

purchaser that this product is of merchantable quality and confirms in kind and quality

with the descriptions and specifications thereof. Product failure or malfunction arising

out of any defect in workmanship or material in the product existing at the time of

delivery thereof which manifests itself within one year from the sale of such product,

shall be remedied by repair or replacement of such product, at ELECTROMATIC’s

option, except where unauthorized repair, disassembly, tampering, abuse or misapplica-

tion has taken place, as determined by ELECTROMATIC. All returns for warranty or

non-warranty repairs and/or replacement must be authorized by ELECTROMATIC, in

advance, with all repacking and shipping expenses to the address below to be borne by

the purchaser.

THE FOREGOING WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES,

EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO, THE

WARRANTY OF MERCHANTABILITY AND FITNESS FOR ANY PARTICULAR

PURPOSE OR APPLICATION. ELECTROMATIC SHALL NOT BE RESPONSIBLE

NOR LIABLE FOR ANY CONSEQUENTIAL DAMAGE, OFANY KIND OR

NATURE, RESULTING FROM THE USE OF SUPPLIED EQUIPMENT, WHETHER

SUCH DAMAGE OCCURS OR IS DISCOVERED BEFORE, UPON OR AFTER

REPLACEMENT OR REPAIR, AND WHETHER OR NOT SUCH DAMAGE IS

CAUSED BY MANUFACTURER’S OR SUPPLIER’S NEGLIGENCE WITHIN ONE

YEAR FROM INVOICE DATE.

Some State jurisdictions or States do not allow the exclusion or limitation of incidental

or consequential damages, so the above limitation may not apply to you. The duration

of any implied warranty, including, without limitation, fitness for any particular purpose

and merchantability with respect to this product, is limited to the duration of the

foregoing warranty. Some states do not allow limitations on how long an implied

warranty lasts but, not withstanding, this warranty, in the absence of such limitations,

shall extend for one year from the date of invoice.

ELECTROMATIC Equipment Co., Inc.

600 Oakland Ave. Cedarhurst, NY 11516—USA

Tel: 1-800-645-4330/ Tel: 516-295-4300/ Fax: 516-295-4399

Every precaution has been taken in the preparation of this manual. Electromatic Equipment Co., Inc.,

assumes no responsibility for errors or omissions. Neither is any liability assumed for damages

resulting from the use of information contained herein. Any brand or product names mentioned here-

in are used for identification purposes only, and are trademarks or registered trademarks of their

respective holders

–14 ––3 –

10.0 Specifications

Range: 0.1–40.0 mils (1–999 µm)

Accuracy:

DCF-900 +0.1 mil : 0–10.0 mils

+1% reading : 10.0-40.0 mils

+1 µm : 0–250 µm

+1% reading : 250-999 µm

DCN-900 +0.1 mil : 0–5.0 mils

+2% reading : 5.0–40.0 mils

+1 µm : 0–50 µm

+2% reading : 50-999 µm

Note: Accuracy limits require that

calibration be made near the measured

thickness.

Resolution: 0.1 mil (1 µm)

Battery/Life: 9 Volt Alkaline / Approx. 6 months

Dimensions: 5.7 x 3.1 x 1.5" (145 x 79 x 38 mm)

Weight: 9 oz. (250 g)

Temp. Limits: Material: 15 to 140°F (–10 to 60°C)

Ambient: 32 to 125°F (0 to 50°C)

Cal. Standards: One steel plate (DCF),

One aluminum plate (DCN)

and two plastic calibration shims

Warranty: 1 year

2.0 Operating Principle & Applications

2.1 DCF-900

When a magnet is brought into direct contact with a bare magnetic

metal surface, a magnetic flux circuit is created. The amount of

flux created depends on the strength of the magnetizing force and

the magnetic reluctance of the bare metal. A non-magnetic coating

or metal plating placed in the path of a magnetic flux circuit will

create a “magnetic gap” which will increase the reluctance of the

circuit. This will then cause a decrease in the circuit flux, propor-

tional to the thickness of the coating or plating. CHECK•LINE®

Coating Thickness Gauges measure this decrease in flux intensity

to provide an accurate, direct indication of the coating or plating

thickness being measured.

The Model DCF-900 gauge measures the thickness of all non-mag-

netic coatings, finishes and metal plating on iron, steel and other

magnetic alloy surfaces. (Examples: paint,powder coatings, plastic,

paper, ceramic, rubber, chrome, electroless nickel, brass, non-mag-

netic stainless steel, tin, zinc, cadmium, etc. . . on iron or steel

2.2 DCN-900

An eddy-current-producing probe brought into direct contact with a

bare metal surface, creates a magnetic flux circuit. The amount of

flux depends on the frequency and strength of the eddy-current

force and the magnetic reluctance of the bare metal. A non-metal-

lic, non-conducting coating placed in the path of a magnetic flux

circuit will create a “magnetic gap” which will increase the reluc-

tance of the circuit. This causes a decrease in the circuit flux, pro-

portional to the thickness of the coating. CHECK•LINE®Coating

Thickness Gauges measure this decrease in flux intensity to pro-

vide an accurate, direct indication of the coating thickness.

The Model DCN-900 gauge will measure the thickness of all

non-metallic, non-conducting coatings, finishes and films on all

non-ferrous metals. (Examples: Anodizing, paint, powder coatings,

plastic, paper, ceramic and rubber on aluminum, brass, bronze,

titanium, non-magnetic stainless steel, zinc, etc.)

3.0 Equipment Supplied

3.1 Standard Accessories

DCF-900 and DCN-900 gauges are supplied with the following

standard accessories:

a. DCF: One (1) bare steel test plate for setting ZERO.

DCN: One (1) bare aluminum test plate for setting ZERO.

b. Two (2) non-metallic, commercial-grade calibrating shims.

c. One 9-Volt DC alkaline battery.

d. DCF-900 User’s Guide.

e. Carrying case.

3.2 Optional Calibration Standards

a. Model TS-5CG Set of five (5) commercial-grade,

non-metallic, calibration shims (1, 2, 5, 10 & 20 mils /

25.4, 50.8, 127, 254, 508mm).

b. NTS-4 NIST Traceable Plastic Shims

(1.00, 2.00, 4.00 mils / 25, 51, 102mm)

NTS-20 NIST Traceable Plastic Shims

(5.00, 10.00, 20.00 mils / 127, 254, 508mm)

c. NIST Certified Standards

9.0 Maintenance, Spare Parts & Service

9.1 Maintenance

Except for keeping all parts clean and replacing worn-out

batteries, there are no special maintenance requirements.

DO NOT USE ANY LUBRICANTS, SOLVENTS OR

ABRASIVES.

A mild soap solution, used sparingly, can be used to clean the

housing and connecting cable. Do not use any water or solvent on

the probe body or tip. Keeping the probe tip clean is critical for

obtaining accurate, repeatable readings. Use a dry cloth to keep the

tip clean. It is recommended that the gauge be stored in its carrying

case when not in use.

9.2 Spare Parts & Service

A complete stock of replacement spare parts and a service facility

are maintained at ELECTROMATIC Equipment Co.,Inc.,

Cedarhurst, NY 11516-USA.

TEL. 800-645-4330 (USA only) or 516-295-4300.

FAX. 516-295-4399

If there are any questions regarding the operation of the DCF-900

or DCN-900 gauge, and before sending any unit back for repair, it

is strongly recommended that the user contact ELECTROMATIC’s

service facility above by telephone or fax.

–4 ––13 –

Part# Type Thickness Std’s (mils) Thickness Std’s (µm)

TSF-4 Fe 1.50 2.50 4.00 38.1 63.5 101.6

TSF-20 Fe 2.00 10.00 20.00 50.8 254.0 508.0

TSN-4 NFe 1.50 2.50 4.00 38.1 63.5 101.6

TSN-7 NFe 1.50 3.00 7.00 38.1 76.2 177.8

8.0 Changing the Battery

The battery should not be removed while the power is on. Wait for the

gauge to automatically power off (after 90 seconds of non-use) before

replacing the battery.

When to Replace: The gauge will automatically turn off if the battery

drops below 7.4 volts DC. If the gauge turns itself off sooner than

expected, or if it will not turn on, change the battery.

Battery Type: Any high-quality 9-volt alkaline battery.

Battery Life: Approximately 6 months when the

gauge is used for 80 readings per day.

4.0 Front Panel Layout and Functions

Fig Control or

Ref Device Function or Indication

1 LCD Provides measurement value, as well as

display CAL and run indicators.

2 Turns the power on. (The power turns off

automatically after 90 seconds of non-use.)

3 Enters and exits calibration mode.

4 Sets “zero” calibration point while in CAL mode.

Increases displayed value while in CAL mode.

5 Decreases displayed value while in CAL mode.

Changes units of measure from mils to microns

or vice versa while in run mode.

–12 ––5 –

5.0 Operating Procedure

5.1 Handle Probe Carefully.

All probes contain sensitive circuitry. Handle them with care.

Do not drop or swing them.

AVOID DRAGGING PROBE TIP ACROSS A SURFACE.

For best results, hold probe in place until reading is stabilized,

then lift probe away from surface before re-applying to surface

for subsequent readings. Clean pole tips with a dry cloth.

DO NOT USE ANY SOLVENTS.

5.2.Taking Measurements

1. Press key to turn on the power. The LCD will display

ru.n or run. The gauge is now ready to take measurements.

NOTE: The presence or absence of a decimal point on the LCD

display indicates that the gauge has been set for English (mils)

or metric (microns) units, respectively. To change from mils to

microns and vice versa, refer to 7.0.

2. Hold the probe by the black, outer plastic shell and gently press

the tip against the surface to be measured. Use enough pressure

to cause the inner V-notched liner to contact the coated surface

and prevent the probe from rocking.

The thickness reading will be displayed on the LCD display.

7.0 Changing Units of Measure

To change units of measure (mils vs. microns), proceed as

follows:

1. Turn the power on by pressing the key.

The display will show:

ru.n Gauge set for mils (0.001”), or

run Gauge set for microns (µm)

2. Press the key and keep it depressed for approximately

2 seconds until a tone is heard. You will notice that the decimal

point will either appear or disappear, indicating that the units of

measure have changed from mils to microns, or vice versa,

each time the key is pressed and held. Lift probe.

NOTE: Once selected, units of measure will remain unchanged

each time the DCF-900 is turned on and off.

–6 ––11 –

Setting “Calibration” Point

5. Place the plastic calibration shim on top of the bare metal part

and then place the probe on top of the shim and bare part

combination and measure as before.

Note: the reading and determine if it matches the indicated value of

the shim. If not, press and hold the or keys to increase or

decrease the displayed value until it matches the shim value.

Remove the probe from the test plate. The display will show

CA.L or CAL.

6. Press and hold the key again to enter the “calibration”

point into the microprocessor and exit the calibration mode.

The display will now show ru.n or run, indicating that

calibration is complete and that you are back in the operational

mode.

You are now ready to take measurements.

6.4 Notes on Calibration

1. If the gauge reads within 0.1 mil or 3 microns (2%) of the

calibration shim value, it is usually not necessary to change

the calibration since it is within accuracy limits.

2. Use a calibration shim whose thickness is equal to or greater

than the expected coating thickness to be measured.

3. If greater reading accuracy is required, calibration and/or

measurements should be performed with the units of measure

set for microns, since “microns” provides greater resolution

than mils. (0.1 mil = 2.5 microns).

5.3. Notes on Measurements

1. The gauge will automatically turn the power off after 90

seconds of non-use. You cannot turn the power off manually.

2. The DCF-900 and DCN-900 are continuous-reading type

gauges which will provide readings as long as the probe is in

contact with the measured surface. When the probe is removed,

the LCD display will show ru.n or run, indicating that the

gauge is in the operational mode.

If the thickness reading continues to get smaller while the probe

is in contact with the coating, it indicates that the coating is soft

and that the probe is sinking into the coating.

3 If the last digit alternates between two values during a

measurement, the measurement is midway between those

two values.

4. Where the base metal departs greatly in shape, thickness,

texture or material from the metal standards supplied, the user

should always use a sample of the uncoated product bare metal

itself for setting ZERO.

–10 ––7 –

CAL

6.0 Calibration

6.1 Introduction

The DCF-900 normally does not require calibration before use.

However, whenever the productor part material to be checked

varies greatly from the steel test plate supplied, in either thickness

or shape, it is best to check or verify calibration by using an

uncoated sample of the actual product or part with one of the cali-

bration shims supplied. Check calibration as noted in 6.2, below,

and change calibration, if necessary, following the procedure of

6.3. If a change is necessary, continue to use the bare part in lieu

of the test plate supplied when checking or changing calibration.

NOTE: Be assured that the calibration checking and hanging

procedures are very simple. They take only a few minutes to

perform and should only be considered when the product material

thickness or shape changes.

6.2 Checking Calibration

1. Turn the power on by pressing the key.

Display will show ru.n or run.

2. Holding the probe by its plastic shell, place the tip on the

uncoated metal part. Gently push the probe shell until the

V-notched sleeve contacts the bare surface. If the display

reads 0.0, proceed to step 3.

If the display reads any value other than 0.0, proceed no further

since the calibration must be changed, as noted in 6.3.

3. Next, place the plastic calibration shim on top of the bare metal

part and the probe tip on top of the shim and metal part and

measure as in 5.2.

If the displayed value matches the value indicated on the shim,

within the accuracy limits of the DCF-900 Specifications noted

in 10.0, calibration has been verified. THE GAUGE IS

NOW READY FOR USE.

If it differs from the shim value, the gauge should be

re-calibrated, as indicated in 6.3.

6.3 Changing Calibration

1. Turn the power on by pressing the key.

The screen will display ru.n or run, to indicate English (mils)

or metric (microns) measuring units, respectively. To change

units, refer to 7.0.

2. Press and hold the key until CA.L is displayed, to

start the calibration process.

Setting “Zero” Point

3. Holding the probe by its plastic shell, place the tip on the bare

metal. Gently push the shell until the V-notched sleeve contacts

the surface.

The display will read 0.0, or any other value.

4. Maintaining probe contact with one hand, press and hold

the key with the free hand until a beep sounds. This

indicates that the "zero" point is properly set and entered into the

gauge's microprocessor. Remove probe.

–8 ––9 –

CAL

CHECK•LINE®

Coating Thickness Gauge

DCF-900 / DCN-900

USER’S GUIDE

Distributed by: ABQ Industrial LP USA

Tel: +1 (281) 516-9292 / (888) 275-5772 eFax: +1 (866) 234-0451

Web: https://www.abqindustrial.net E-mail: [email protected]

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