Checkline DCF-900 User Manual

OI-809F

NOTES

TA BLE 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

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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.

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1.0. Intr oduction & Quick Start Instr uction s

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.

11.0 Limited W ar ranty

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 misapplica­tion 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, OF ANY 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.

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 [phone]

• FAX [phone]

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ELECTROMATIC Equipment Co., Inc.
600 Oakland Ave. Cedarhurst, NY 11516—USA
Tel: [phone]/ Tel: [phone]/ Fax: [phone]

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 here­in are used for identification purposes only, and are trademarks or registered trademarks of their
respective holders

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10.0 Specifications

2.0 Operating Principle & A pplications

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 +

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)

Cal. Standards: One steel plate (DCF),

Warranty: 1 year

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.

Ambient: 32 to 125° F (0 to 50° C)

One aluminum plate (DCN)
and two plastic calibration shims

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, propor­tional 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-mag­netic 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-mag­netic 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-metal­lic, non-conducting coating placed in the path of a magnetic flux
circuit will create a “magnetic gap” which will increase the reluc­tance of the circuit. This causes a decrease in the circuit flux, pro­portional to the thickness of the coating. CHECK•LINE®Coating
Thickness Gauges measure this decrease in flux intensity to pro­vide an accurate, direct indication of the coating thickness.

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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.)

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