General DSMM600 User manual

4-IN-1 SOIL CONDITION METER

USER’S MANUAL

DSMM600

Please read this manual carefully and thoroughly before using this product.

TABLE OF CONTENTS

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

What’s in the ackage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

roduct Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 –4

Setup Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Install Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 –5

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Operating & Maintenance Tips . . . . . . . . . . . . . . . . . . . . . 6 –7

Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Return for Repair olicy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

INTRODUCTION

Thank you four purchasing eneral Tools & Instruments' ( eneral's) DSMM600

4-in-1 Digital Soil Condition Meter. Please read this manual carefully and

thoroughly before using the instrument.

The DSMM600 is ideal for measuring the temperature, pH and moisture content

of soil and the intensity of sunlight shining on it. The meter cannot accurately

gauge the intensity of grow lights because most light bulbs lack the full

spectral range of sunlight.

KEY FEATURES

• Measures soil pH and temperature

• Also gauges soil moisture content within 5 levels and sunlight intensity

within 9 levels

• Large backlit triple readout LCD

• °F/°C switch

• Auto Power Off

• Low battery indication

• CE approved

WHAT’S IN THE PACKAGE

The DSMM600 comes in a blister pack with this user’s manual inside the fold-

over card.

PRODUCT OVERVIEW

Figure 1 shows the names and locations of the meter’s controls, indicators and

physical structures. Figure 2 shows all possible indications on the LCD.

Familiarize yourself with the labels, positions, and functions of all buttons and

switches and the meaning of all display indications before moving on to the

Setup Instructions and Operating Instructions.

A. pH/Temp switch (on back)

B. ON button

C. Moisture/pH/temperature sensor

D. Sunlight sensor

E. Backlit triple readout LCD

F. C/F OFF button

. Battery compartment (on back)

H. Sensor-tipped probe

I. Sensor cap

Fig. 1. The DSMM600’s controls,

display and physical structures

A. Sunlight intensity readout

B. Indicates main readout

is showing pH

C. Main readout

D. Moisture level readout

E. Indicates main readout is

showing temperature

F. Low battery icon

SETUP INSTRUCTIONS

INSTALL BATTERY

To open the battery compartment, turn the meter over and lift the tab at the

bottom of the battery compartment cover (Fig. 1, Callout ). Remove the cover

and set it aside. Then plug a “9V” Alkaline battery into the wired socket inside

the compartment. The terminals of the battery and the socket mate in only one

way, with the smaller male terminal plugging into the larger female terminal.

Close the battery compartment by replacing its cover and snapping it shut.

OPERATING INSTRUCTIONS

To power on the meter, press the ON button (Fig. 1, Callout B). The meter will

immediately display the sunlight intensity, moisture level and temperature of

the ambient environment on the three readouts (Fig. 2, Callouts A, D and C).

Note that the green LCD backlight comes on automatically when the meter

powers on. It will remain on for 90 seconds. To reactivate the backlight after

it goes out, briefly press (but do not hold) the C/F OFF button twice. The first

press will change the temperature unit from °F to °C and turn the backlight

back on. The second press will switch back to °F.

Also note that the meter will automatically power off after any 5-1/2 minute

period during which no front-panel buttons are pressed. This Automatic Power

Off (APO) function extends battery life.

Fig. 2. All possible

display indications

To power off the meter, press and hold the C/F OFF button for at least

3 seconds.

To measure the conditions of soil in a pot or garden plot, first remove the

protective sensor cap (Fig. 1, Callout I). Then insert the probe slowly and

vertically into the soil:

• For plants in pots less than 1 ft. in diameter, insert the probe halfway

between the plant stem and the edge of the pot. Be careful not to

damage delicate roots by inserting the probe close to a plant’s stem.

• For plants in larger pots, insert the probe one-third of the distance

between the stem and the edge of the pot.

• If the pot is deep, push the probe deeper—where plant roots are denser.

The upper and lower readouts of the DSMM600 are dedicated to sunlight and

moisture levels. The meter does not indicate the precise value of either level;

instead, it displays the “ballpark” range containing the current reading. The

Specifications section of this manual correlates the names of displayed ranges

(HGH-, NOR, WET+, for example) with the sunlight or moisture level value

measured. (NOR is shorthand for normal, HGH- and NOR- mean slightly less

than high and normal, NOR+ is slightly higher than normal, and WET+ and

DRY+ should be interpreted as extremely wet and dry.)

To maximize the accuracy of sunlight readings, point the light sensor at the top

front of the meter (Fig. 1, Callout D) toward the sun.

The middle (main) readout shows soil pH or soil temperature, depending on the

position of the switch at the top of the back of the meter body (Fig. 1, Callout A).

To display soil pH instead of soil temperature on the main readout, slide the

switch to the left (the pH position). Note that doing so causes the lower,

moisture level readout to disappear.

To resume showing soil temperature on the main readout, slide the pH/Temp

switch to the right. If the soil temperature is lower than 16°F (-9°C), Lo will

appear on the main readout. If the soil temperature is higher than 122°F

(50°C), HH will appear on the main readout.

SPECIFICATIONS

pH Measurement Range: 3.5 to 9.0

pH Accuracy and Resolution: ±0.5 pH units

Temperature Measurement Range: 16° to 122°F (-9° to 50°C)

Temperature Accuracy/Resolution: ±1.8°F (1°C)/1° (F or C)

Moisture Level Ranges: <5% (DRY+), 5 to 10% (DRY), 10 to 20%

(NOR), 20 to 30% (WET), >30% (WET+)

Light Level Ranges: <500 Lux (LOW-), 500 to 5000 Lux

(LOW), 5000 to 10,000 Lux (LOW+),

10,000 to 25,000 Lux (NOR-), 25,000 to

60,000 Lux (NOR), 60,000 to 80,000 Lux

(NOR+), 80,000 to 100,000 Lux (HGH-),

100,000 to 120,000 Lux (HGH),

>120,000 Lux (HGH+)

LCD Size: 1.8 in. (46mm) diagonal; main readout

has 0.48 in. (12mm) high digits

Auto Power Off Trigger: 5-1/2 minutes of front-panel inactivity

Backlight Duration: 90 seconds

Operating Temperature: 41° to 104°F (5° to 40°C)

@ 5 to 95%RH, non-condensing

Storage Temperature: -4° to 140°F (-20° to 60°C)

@ <85%RH (without battery)

Dimensions of Meter Body: 4.8 x 2.5 x 1.4 in. (122 x 63 x 36mm)

Dimensions of Probe

(Length x Diameter): 7.9 x 0.24 in. (200 x 6mm)

Weight (without battery): 2.9 oz. (81g)

Power Source: (1) “9V” Alkaline battery (not included)

OPERATING & MAINTENANCE TIPS

When the Low Battery icon appears in the center of the display (Fig. 2, Callout

F), it’s time to change the “9V” battery that powers the meter (although

measurements will remain valid for several hours after the icon first appears).

To change the battery, follow the instructions on p. 4.

Take the average of multiple measurements to improve accuracy.

Do not leave the probe inserted in soil longer than necessary to make a

measurement.

Do not drop the meter, bend the probe, or use the probe to break up clumps of

soil.

Wipe the probe clean with a soft, damp cloth and dry it before and after each

measurement.

Slide the sensor cap (Fig. 1, Callout I) over the end of the probe after each

measurement session.

Do not disassemble the meter body or the probe; doing so voids the product’s

limited warranty.

Remove the battery if you do not expect to use the meter for an extended

period of time (months or years).

WARRANTY INFORMATION

eneral Tools & Instruments’ ( eneral’s) DSMM600 4-in-1 Soil Condition Meter

is warranted to the original purchaser to be free from defects in material and

workmanship for a period of one year. Subject to certain restrictions, eneral

will repair or replace this instrument if, after examination, the company

determines it to be defective in material or workmanship. The warranty period

begins on the date of purchase. You are encouraged to register your product

online. eneral will extend your warranty an additional 60 days if you register at

www.generaltools.com/ProductRegistry.

This limited warranty does not apply to damages that eneral determines to be

from an attempted repair by non-authorized personnel or misuse, alterations,

normal wear and tear, or accidental damage. The defective unit must be

returned to eneral Tools & Instruments or to a eneral-authorized service

center, freight prepaid and insured.

Acceptance of the exclusive repair and replacement remedies described herein

is a condition of the contract for purchase of this product. In no event shall

eneral be liable for any incidental, special, consequential or punitive damages,

or for any cost, attorneys’ fees, expenses, or losses alleged to be a

consequence of any damage due to failure of, or defect in any product

including, but not limited to, any claims for loss of profits.

extension to your warranty.

RETURN FOR REPAIR POLICY

Every effort has been made to provide you with a reliable product of superior

quality. However, in the event your instrument requires repair, please contact

our Customer Service to obtain an R A (Return oods Authorization) number

before forwarding the unit via prepaid freight to the attention of our Service

Center at this address:

eneral Tools & Instruments

80 White Street New York, NY 10013 212-431-6100

Remember to include a copy of your proof of purchase, your return address,

and your phone number and/or e-mail address.

GENERAL TOOLS & INSTRUMENTS

80 White Street

New York, NY 10013-3567

PHONE (212) 431-6100

FA (212) 431-6499

TOLL FREE (800) 697-8665

e-mail: [email protected]

www.generaltools.com

DSMM600 User’s Manual

Speciﬁcations subject to change without notice

NOTICE - WE ARE NOT RESPONSIBLE FOR T POGRAPHICAL ERRORS.

MAN# DSMM600 12/03/13

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