General DWS350SSQ Manuale utente

DELUXE

FAST RESPONSE

WATERPROOF

DIGITAL STEM

THERMOMETER

USER’S MANUAL

DWS350SSQ

Please read this manual carefully and thoroughly

before using this product.

INTRODUCTION

Thank you for purchasing General Tools &

Instruments’ DWS350SSQ Deluxe Fast Response

Waterproof Digital Stem Thermometer. Please read

this user’s manual carefully and thoroughly before

using the product.

The DWS350SSQ is ideal instrument for spot-

checking the temperature of food, liquids, laboratory

solutions and specimens, soil, and ambient or forced

air. It responds 10 times more quickly than the

average stem thermometer.

KEY FEATURES

• Rugged, food-safe stainless steel probe

• Waterproof and dishwasher-ready

• °F/°C switch

• Min/Max memory + data hold

• Fast response

• Plastic sheath with metal pocket clip

• One button calibration

WHAT’S IN THE BOX

The DWS350SSQ comes in a white box along with

this user’s manual. An “ R44” button battery is

preinstalled in the battery compartment.

OPERATING INSTRUCTIONS

To begin, carefully remove and discard the clear

plastic film protecting the entire oval control panel.

Then pull the thermometer from its sheath and press

the

ON/OFF

button. Insert the tip of the probe at least

1/2 in. (13mm) into the solid or liquid material whose

temperature you wish to measure. To measure the

temperature of an airstream, place the tip of the

probe in the middle of the stream.

At the factory, the DWS350SSQ was set to display

temperature in °C.

To sw tch to °F

, press the

°C/°F

button. The thermometer will “remember” your last

selection when it powers off and will resume using

that unit upon restart. So if you always use the same

unit, you will never have to press the

°C/°F

button

again.

To extend battery life, the DWS350SSQ has an Auto

Power Off (APO) feature that automatically powers

off the thermometer if no front-panel button is

pushed within any span of 10 minutes.

To hold a measurement

(“freeze” the display), press

the

HOLD

button. An

will appear in the upper right

corner of the CD. To release the hold and resume

real-time readings, press the

HOLD

button again.

The

will disappear.

To d splay the h ghest temperature value

measured

since the MIN/MAX memory was last reset or the

thermometer was powered off, press the

MIN/MAX

button once. The value will appear for 5 seconds,

along with the term

MAX

in the upper right corner of

the CD. After 5 seconds, the display will resume

showing real-time temperature values.

To d splay the lowest temperature value

measured

since the MIN/MAX memory was last reset or the

thermometer was powered off, press the

MIN/MAX

button twice. The value will appear for 5 seconds,

along with the term

MIN

in the upper right corner of

the CD. After 5 seconds, the display will resume

showing real-time temperature values.

To reset the MIN/MAX memory

, press and hold the

MAX/MIN

button for >3 seconds with either

MIN

MAX

appearing on the CD. This will produce a

display of “- - -._ F” or “- - -._ C” for 3 seconds,

after which the CD will resume showing real-time

temperature values.

Powering the thermometer off also resets the

MIN/MAX memory. Resetting the MIN/MAX memory

clears both values; you cannot independently reset

one stored value but not the other.

To cal brate the DWS350SSQ:

1. Power on the unit.

2. Insert the probe into a cup containing a slurry of

crushed ice and water at least 1 in. deep. Be sure

that the end of the probe is not touching the

bottom of the cup.

3. Wait 10 seconds until the reading stabilizes near

32.0°F

0.0°C

4. Press and hold the

CAL

. button for at least

2 seconds. The term

CAL

will appear on the CD.

5. Press the

CAL

. button again.

CAL

will disappear

and be replaced by a real-time reading of the

slurry temperature. The reading will then flash

once or twice to confirm that the thermometer

has been calibrated.

To avoid accidental calibration, the above procedure

has been designed to work only at a temperature

between 23° and 41°F (-5° and 5°C).

SPECIFICATIONS

Temperature Measurement Range:

-40° to 450°F (-40° to 232°C)

Measurement Accuracy:

±1.8°F (±1°C) from 14° to 158°F

(-10° to 70°C); ±3.6°F (±2°C) elsewhere

Measurement Resolution: 0.1° (F or C)

Response Time:

Stable (± 0.3º) reading within 8 seconds

CD Size:

1 in. (25mm) diagonal, with 0.5 in. high digits

Auto Power Off Trigger:

10 minutes of front-panel inactivity

Probe ength: 4.7 in. (120mm)

Weight (including battery): 1 oz. (28g)

Power Source: (1) “ R44” battery (included)

MAINTENANCE TIPS

To replace the battery:

1. Open the battery compartment on the back of the

unit by placing a coin in the slot of the cover and

turning in the direction marked

OPEN

. Set the

cover aside.

2. Install a fresh “ R44” or “AG13” battery in the

compartment so its rounded side faces down and

its flat side (with “+” and “ R44” or “AG13”

markings) faces up. The battery does not snap into

place, so do not apply downward pressure.

3. Place the cover back over the battery.

4. Place the coin back in the slot of the cover and

turn in the direction marked

. The pressure

of the cover is what holds the battery in place.

WARRANTY INFORMATION

General Tools & Instruments’ (General’s)

DWS350SSQ Deluxe Fast Response Waterproof

Digital Stem Thermometer 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, General 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. General 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 General 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

General Tools & Instruments or to a General-

authorized service center, freight prepaid and

insured.

www.generaltools.com/ProductRegistry to receive a

60-day 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 RGA (Return

Goods Authorization) number before forwarding the

unit via prepaid freight to the attention of our Service

Center at this address:

General 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.

NOTES

______________________________________

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

DWS350SSQ User’s Manual

Speciﬁcations subject to change without notice

NO ICE - WE ARE NO RESPONSIBLE

FOR YPOGRAPHICAL ERRORS.

MAN# DWS350SSQ

3/4/14

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