Checkline DHT-2 User Manual

TABLE OF CONTENTS

1.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 2

1.1 Principle of Operation

2.0 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

3.0 Measuring Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

4.0 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

5.0 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

5.1 Built in Measurement Scales

5.2 Optional Equipment

6.0 Appendix - Conversion Scales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

7.0 Warranty

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NOTES

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1.0 INTRODUCTION

The DHT-2 Textile Moisture Meter accurately measures the percentage (%) of
humidity contained in textiles. It can be equipped with different transducers
(called “electrodes”), according to the type of material being tested.

1.1 Principle of Operation

When the DHT-2 probe is placed in contact with a textile sample, it
measures the electrical conductivity of the material, which varies based
upon the type of material under test, and the amount of moisture present.

Next, using one of its 17 built-in, user selectable material measurement
scales, the DHT-2 automatically converts the conductivity reading into an
accurate measurement of humidity percentage contained in the textile. This
measurement appears on the LED display.

If material under test is not included in the DHT-2’s built-in measurment
scales (see specifications,section 5.1) , the absolute value of electrical
conductivity (range 0–100) can be converted to a percentage of humity
reading using the convervison tables provided in the Appendix

.

2.0 OVERVIEW

2.1 Gauge

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2.2 Complete Kit

The DHT-2 is shipped with everything you need to begin taking
measuremnts, including:

• Gauge • 9 Volt Battery

• Electrode Holder • Operating Manual

• Connecton Cable • Leather Carrying Case

Electrode Holder

Removable
Plastic Ring

Connection Cable

Gauge

Power On/Off

Selects Measurement Scale

Electrode

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7.0 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 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.

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.

3.0 MEASURING PROCEDURE

3.1 Preparation

1. Connect the gauge to the electrodes holder using the supplied Connection
Cable.

2. Unscrew the upper plastic ring of the electrode holder, insert the
desired electrode, replace the plastic ring.

3.2 Taking A Measurement

1. Press the Power On/Off key.

2. Select one of the built-in measurement scales by

pressing the key until the desired material
name appears on the display

(see photo). For

other materials, select the 0-100 scale.

3. Insert the prongs of the electrode

completely into

the sample

.

4. If you are using one of the built-in measurment
scales, the percentage of humidity appears on the
LED display. For other materials use the conversion
scales (see Appendix) to convert the 0-100 reading
into a humidity percentage.

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