Dwyer Instruments DKT-1 Operating Manual

Bulletin T-15

Model DKT-1 Pocket-Size Thermocouple Thermometer

Specifications - Installation and Operating Instructions

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The Model DKT-1 Pocket-Size Thermocouple
Thermometer accurately monitors temperatures in a vari-

ety of applications. The wide measurement range and
selectable engineering units allow users to easily view read­ings in either °F or °C . The automatic power down feature
conserves battery life. This compact thermometer accepts
any K-type thermocouple sensors (sold separately) with
min-plug connectors.

PROBE MEASUREMENTS

With the appropriate K-type thermocouple connected to
the thermocouple plug, the thermometer is ready to take
measurements. Power the thermometer on by pressing the
ON/HOLD button. The device will begin reading. The °F or
°C designator will flash while taking readings. The ther­mometer will automatically power down after 4 minutes to
conserve battery life. Pressing the “ON/HOLD” key during
measurements will hold the current reading for 15 seconds.
After 15 seconds, the device will power down to conserve
battery life.

ENGINEERING UNITS

The thermometer can measure °F or °C. To change the
units, turn on the unit by pressing the “ON/HOLD”. Press
the “ON/HOLD” key again and the words “hold” will display.
While the display is holding the last reading, press the
“°C/°F” button to change the units.

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SPECIFICATIONS
Range:-83.2 to 1999°F (-64 to 1400°C).
Ambient Operating Temperature: 32 to 122°F

(0 to 50°C).

Accuracy: +/- 1% of Reading or 1.8°F (1.0°C).
Probe Connection: K-type mini-jack.
Resolution: 0.1°F/°C.
Battery Life: CR2032 lithium battery - estimated 100

hours continuous use.

Weight: 1.42 oz (40.15g).
Agency Approvals: CE.

LCD ERROR MESSAGES

The thermometer incorporates visual diagnostic messages
as follows:

‘Er2’: Displays when the thermometer is exposed to rapid
changes in the ambient temperature.

‘Er3’: Displays when the ambient temperature exceeds
32°F (0°C) or 122°F (50°C). The thermometer should be
allowed plenty of time (minimum 30 minutes) to stabilize to
the working/room temperature.

For all other error messages it is necessary to reset the ther­mometer. To reset it, wait for the instrument to power off,
remove the battery and wait for a minimum of one minute,
reinsert the battery and turn it on. If the error message
remains please contact Dwyer Customer Service
Department for further assistance.

DWYER INSTRUMENTS, INC.

Phone: [phone] www.dwyer-inst.com

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A. Fax: [phone] e-mail: [e-mail]

BATTERIES

The thermometer incorporates visual low battery indication
as follows.

Battery OK: Measurements are possible.

Battery Low: Battery needs to be replaced, measurements

are still possible.

Battery Exhausted: Measurements are not possible.
When the low battery icon indicates the battery is low, the
batteries should be replaced immediately with a CR2032
lithium cell battery using the below steps.

The battery is located under the twist cover in the rear of the
device. Using a coin or flat head screwdriver, twist the cover
counterclockwise. Remove the cover and remove the bat­tery . Insert one CR2032 (3V) lithium cell battery accor ding to
the diagram located in the battery slot.

CAUTION:

1. To avoid electrical shock, do not use this instrument
when voltages at the measurement surface exceed 24V AC
or DC.

2. To avoid damage or burns, do not make temperature
measurements in microwave ovens.

3. Excess stress may cause probe to break.

4. Proceeding a high temperature measurement, the probe
may be hot.

5. The probe may cause harm/injury. Precautions should be
taken when handling the device.

6. To adjust for various applications, the user should choose
the proper probe accordingly.

7. To prevent damage to the probe, do not exceed the mea­surement temperature range.

EMC/RFI Cautions:

The readings may be affected if the unit is operated within
radio frequency electromagnetic field strength of approxi­mately 3 volts per meter, but the performance of the instru­ment will not be permanently affected.

MAINTENANCE

A periodic check of the system calibration is recommended.
The Model DKT-1 is not field serviceable and should be
returned if repair is needed (field repair should not be
attempted and may void warranty). Be sure to include a
brief description of the problem plus any relevant applica­tion notes. Contact customer service to receive a return
goods authorization number before shipping.

NOTE:

It is important to allow the thermometer to power off
before replacing the batteries otherwise the thermometer
may malfunction. Dispose of used batteries promptly and
keep away from children.

©Copyright 2008 Dwyer Instruments, Inc. Printed in U.S.A. 6/08 FR# R5-443626-00

DWYER INSTRUMENTS, INC.

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A. Fax: [phone] e-mail: [e-mail]

Phone: [phone] www.dwyer-inst.com