INSTRUCTION MANUAL Flat Surface Stem Dial Thermometer Model 392052 Specifications Display Units Measurement range Resolution Accuracy Sensor length Sensor tip diameter Sensor material Auto Off Operating temperature for display Battery 2000 count liquid crystal display C/oF selectable -58 to 572oF (-50 to 300oC) 0.1o to 199.9o, 1o > 199.9o ±1.8oF (1oC) from –22 to 452oF (-30 to 250oC) : ±4oF (2oC) outside this range 5” (130mm) 0.57” (14.5mm) Stainless steel After one hour of operation 14 to 122oF (-10 to 50oC) (dial display) one 1.5V LR44 cell or equivalent (A76/G13) cell o Operation Battery Installation/Replacement Using a coin or a screwdriver, turn the battery compartment cover a quarter turn to the left. Remove the cover and install/replace the battery observing the proper polarity. Taking Temperature Measurements 1. Slide the ON/OFF switch to turn the thermometer on. The digital display will begin to indicate temperature. If the display does not operate, replace the battery. 2. Slide the oF/C button to select the desired temperature units. 3. Place the sensor disk flat against the surface to be measured and read the temperature on the display. Considerations • For best results, the probe disk should be held flat against the surface and the surface are should be free of any dirt or substance that will inhibit thermal contact. • The thermometer should not be placed inside any oven or microwave. • Remove the battery from the thermometer if it is not to be used for an extended time period. Warranty EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects in parts and workmanship for one year from date of shipment (a six month limited warranty applies on sensors and cables). If it should become necessary to return the instrument for service during or beyond the warranty period, contact the Customer Service Department at (781) 890-7440 ext. 210 for authorization or visit our website at www.extech.com (click on ‘Contact Extech’ and go to ‘Service Department’ to request an RA number). A Return Authorization (RA) number must be issued before any product is returned to Extech. The sender is responsible for shipping charges, freight, insurance and proper packaging to prevent damage in transit. This warranty does not apply to defects resulting from action of the user such as misuse, improper wiring, operation outside of specification, improper maintenance or repair, or unauthorized modification. Extech specifically disclaims any implied warranties or merchantability or fitness for a specific purpose and will not be liable for any direct, indirect, incidental or consequential damages. Extech's total liability is limited to repair or replacement of the product. The warranty set forth above is inclusive and no other warranty, whether written or oral, is expressed or implied. Copyright © 2002 Extech Instruments Corporation. All rights reserved including the right of reproduction in whole or in part in any form. 392052 Ver. 1.1 5/02