ThermoWorks 271-3XX 3001 DRY-WELL PORTABLE MINI HEAT SOURCE - Manual (Page 2)

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TABLE OF CONTENTS
1 INTRODUCTION 1
2 SAFETY 2
3 OPERATION 3
3.1 Parts and Controls 3
3.1.1 Power Lead 3
3.1.2 Power Switch 3
3.1.3 Fan 3
3.1.4 Stand 3
3.1.5 Dry-Block 3
3.1.6 Temperature Controller 3
3.2 Operation 4
3.2.1 Dry-Block Set-Up 4
3.2.2 Temperature Setting 4
3.2.3 Probe Testing 5
3.2.4 Display Units 5
4 MAINTENANCE 6
4.1 Care of the 3000 Series Units 6
4.2 Warranty 6
5 SPECIFICATIONS 7
1. INTRODUCTION
The 3000 Series dry-block heating and cooling sources allow
users to check the accuracy of thermometers and sensors
as a system, on site, without the need for heavy, expensive
equipment. The dry-blocks are high accuracy portable
temperature sources that are extremely easy to use. Simply
plug in, switch on and set the dry-block to the temperature
that you wish to check, insert your probe into the well and
take the reading. Compare the temperature reading of your
thermometer and probe to the displayed temperature of the
dry-block and the difference is the error of your instrument.
For optimum accuracy and NIST traceability use a reference
thermometer to make comparison measurements.
The 3000 Series dry-blocks are controlled by a closed loop
microprocessor based digital PID temperature controller
system incorporating a combination heater/cooler and a
precision platinum RTD sensor housed in the aluminum
block. Fan cooling allows rapid changes in block temperature
upon demand. The required temperature may be adjusted
in 0.1° increments across the range of the instrument using
the buttons on the front panel. These units are ideal for use
in a variety of industrial and process applications. Each
unit is supplied with a traceable certificate of calibration
showing actual test data, which can be used as part of quality
assurance programs.