General DWS350SSQ Manual de usuario
DELUXE
FAST RESPONSE
WATERPROOF
DIGITAL STEM
THERMOMETER
USER’S MANUAL
DWS350SSQ
P
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.
2
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
H
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
H
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
or
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.
3
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
or
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
4
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
CLOSE
. 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.
5
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.
Register now at
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.
6
NOTES
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7
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
©2014 GENERAL OOLS & INS RUMEN S
NO ICE - WE ARE NO RESPONSIBLE
FOR YPOGRAPHICAL ERRORS.
MAN# DWS350SSQ
3/4/14
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