PCE Instruments PCE-SMM 1 Users guide

Manual

OIS

R

PCE-SMM 1
SOIL

M

TURE METE

PCE Americas Inc.
711 Commerce Way
Suite 8
Jupiter
FL-33458
USA
From outside US: +1
Tel: [phone]
Fax: [phone]
[e-mail]

www.pce-instruments.com/english

www.pce-instruments.com

Your purchase of this SOIL
MOISTURE METER marks a
step forward for you into

the field of precision
measurement. Although
this SOIL MOISTURE
METER is a complex and
delicate instrument, its
durable structure will
allow many years of use if
p r o p e r o p era t i n g
techniques are developed.
Please read the following
instructions carefully and
always keep this manual
within easy reach.

PCE Instruments UK Ltd.

Units 12/13

Southpoint Business Park

Ensign way

Hampshire / Southampton

United Kingdom, SO31 4RF

From outside UK: +44

Tel: [phone]

Fax: [phone]

[e-mail]

TABLE OF CONTENTS

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1. FEATURES.................................................................1

2. SPECIFICATIONS......................................................

3. FRONT PANEL DESCRIPTION..................................... 3

3-1 Soil moisture Probe.............................................

3-2 Moisture Sensing Head........................................

3-3 Power Button...................................................... 3

3-4 Hold Button........................................................

3-5 REC Button.........................................................

3-6 LCD Display........................................................

3-7 Battery Compartment/Cover.................................3

4. MEASURING PROCEDURE..........................................4

4-1 Measurement by selecting the different

material...........................................................

4-2 Data Hold...........................................................

4-3 Data Record........................................................ 5

5. BATTERY REPLACEMENT...........................................6

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1. FEATURES

* Designed to check the moisture level of soil or other

similar material.

* Measurement range : 0 % to 50 % moisture content

of soil sample with 0.1 % resolution.

* All in one digital soil meter, easy to make operation.
* Data hold function to freeze the desired value on display.
* Microprocessor circuit ensures high accuracy and

provides special functions and features.

* Operates from DC 1.5V ( UM4/AAA ) x 4 PCs batteries.
* Built-in low battery indicator.
* Durable, long-lasting components, enclosed in strong,

compact ABS-plastic housing.

2. SPECIFICATIONS

Applications Designed to check the moisture level of

soil or other similar material.

Measuring Used the 2 pins electrode to measure the
Principal conductive ability of the species, then

converter to the reading of % " Moisture
content " of soil sample.

Display LCD size : 28 mm x 19 mm.

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Measurement 0 % to 50 % moisture content on soil.
Range
Resolution 0.1 %.
Accuracy ± ( 5 % + 5 d ) F.S.

@ 23± 5 , F.S. : full scale.℃

Circuit Custom one-chip of microprocessor LSI

circuit.
Probe 2 pins moisture electrode.
Data Hold Freeze the display reading.
Sampling Time Approx. 0.8 second.
Operating 0 to 50 .℃
Temperature
Operating Less than 80% R.H.
Humidity
Power Supply DC 1.5 V battery ( UM4/AAA ) x 4 PCs,
Power Current Approx. DC 12 mA
Weight 267 g/ 0.58 LB.
Dimension

Meter body :

@ Battery is included.

172 x 40 x 40 mm ( 6.8" x 1.6" x 1.6" ).

Probe body :

220 mm x Dia. 10 mm

8.7" x Dia. 0.4" .

Total length ( meter + probe ) :

392 mm ( 15.4 " ).

Accessories Instruction manual.................. 1 PC.

Included

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3. FRONT PANEL DESCRIPTION

Fig. 1

3-1 Soil moisture Probe
3-2 Moisture Sensing Head
3-3 Power Button
3-4 Hold Button
3-5 REC Button
3-6 LCD Display

3-7 Battery Compartment/Cover

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4. MEASURING PROCEDURE

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4-1 Soil measurement

1)Turn on the meter by pressing the " Power Button "

2)Insert the " Moisture sensing head " ( 3-2, Fig. 1 ) into

Soil moisture

Probe

( 3-3, Fig. 1 ) momentarily.

* Press the " Power Button " ( 3-3, Fig. 1 )

momentarily again will turn off the meter.

the measured soil.

It is recommended that probe head should be
inserted into the soil at least 10 cm when make
the measurement..

Moisture

Sensing Head

Fig. 2

Consideration :
If the sample soil under testing has a high

moisture content it may take a few minutes t
obtain a stable reading.

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4-2 Data Hold

* During the measurement, press the " Hold Button "

( 3-4, Fig. 1 ) momentarily to hold the measured
value. The LCD will show a " HOLD " symbol.

* Press the" Hold Button " once again to release the

data hold function.

4-3 Data Record ( Max., Min. reading )

1)The data record function records the maximum and

minimum readings. Press the " REC Button " ( 3-5, Fig.
1 ) momentarily to start the Data Record function,
shows " REC " on the display.

2)With the " REC " symbol on the display.

a)Press the " REC Button " ( 3-5, Fig. 1 ) momentarily,

the " REC MAX " symbol along with the maximum
value will appear on the display.

b)Press the " REC Button " ( 3-5, Fig. 1 ) momentarily

again, the " REC MIN " symbol along with the
minimum value will appear on the display.

* When display shows " REC MAX " or " REC MIN ",

press the " Hold Button " ( 3-4, Fig. 1 )
momentarily will delete the max. ( min. ) value,
the display will show the " REC. " only and
execute the memory function continuously.

c) To exit the memory record function, press the

" REC " button for 2 seconds at least. The display will
revert to the current reading, not show " REC "

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5. BATTERY REPLACEMENT

* Replace the batteries when the left corner of the LCD

displays the low battery icon " ", using 4 fresh

1.5 V ( UM4, AAA ) batteries.
T

o change the batteries, open ( rotate clockwise direction )

*

the " Battery Cover " ( 3-7, Fig. 1 ).

* Make sure the " Battery cover " (3-7, Fig 1) is secured

after changing the batteries.

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