Instruction Manual Digital Thermometer DTL304 ENGLISH • 4 TEMPERATURE INPUTS • IP67 WATER/ DUSTPROOF RATING • MULTI PARAMATER BACKLIT DISPLAY • CONVENIENT PROBE STORAGE For Professionals...Since 1857® • MIN/MAX & DATA HOLD • EXTERNAL USB POWER FOR LONGTERM LOGGING • USB LOGGING SOFTWARE • DIFFERENTIAL T1-T2 & T3-T4 • MAGNETIC MOUNT STRAP 99 Washington Street Melrose, MA 02176 Phone 781-665-1400 Toll Free 1-800-517-8431 Visit us at www.TestEquipmentDepot.
Digital Thermometer Instruction Manual GENERAL SPECIFICATIONS The Klein Tools DTL304 is a quad input dual differential Digital Temperature Tester that offers logging, monitoring and uploading capabilities to help analyze system performance trends with the included software. • • • • • Dimensions: 7.20”h x 3.70”w x 1.70"d Weight: 16.
ENGLISH FEATURE DETAIL A F B C G D E H I NOTE: Press all the dual function buttons momentarily to activate the Upper Row Function, and press these buttons for more than 1 second to activate the Lower Row Functions. A. Thermocouple Inputs. • T1 = Thermocouple Input 1, T2 = Thermocouple Input 2, T3 = Thermocouple Input 3, T4 = Thermocouple Input 4 • Use thermocouples types K, J, T, or E ONLY in the input ports B. Backlit LCD Display • See DISPLAY section of this manual. C.
F. G. H. I. USB Port / External Power • USB input jack NOTE: Also used for AC power adapter. T1/T2, T3/T4, T1-T2, T3-T4 • While displaying T1/T2 in the primary display, press to alternate between T1/T2 and T3/T4. • Press and Hold to scroll the secondary display to temperature differential and the internal temperature of the meter in the lower display. Hold °C/°F/K ( ) • Press to freeze or release the displayed readings.
ENGLISH SET UP INSTRUCTIONS A. B. C. D. E. F. G. Before Operating • Plug the thermocouple(s) into the input terminal(s). • Press “ ” to turn the instrument on. After 1 second, the thermometer displays the first reading and its internal temperature. If no thermocouple is plugged into the selected input or the thermocouple is “OPEN”, the display shows “----”.
H. • Press “ ” or “ ” until the display shows “ ”. • Press “ENTER” to display “ ” or “ ” in the time display. If “ ” is displayed, press “ ” or “ ” to select “ ”. • Press “ENTER” to display choice number 3 in the secondary display and 00:30 h:m in the time display. • Press “ ” or “ ” until the display shows the Auto-PowerOff Time choice number you want, and then press “ENTER” to store the Auto-Power-Off setting in memory. • Auto-Power-Off mode is automatically disabled in MIN/MAX and logging modes.
ENGLISH 2. 3. 4. 5. 6. Displaying Temperature • Press “HOLD (°C/°F/K)” for more than 1 second to select the correct temperature unit. • Hold or attach the thermocouple(s) to the measurement location. The temperature reading appears in the selected display. • Press “T1/T2 T3/T4 (T1-T2, T3-T4)” momentarily to toggle T1/ T2 or T3/T4 reading in the primary display.
7. 8. 9. 10. 11. Initial Conditions and Data Entries • Logged readings include initial conditions and data entries. The initial conditions are the thermocouple type and the offsets for each thermocouple input. You can only view initial conditions using the included software. • The data entries are a time stamp and the T1, T2, T3, T4 T1-T2 and T3-T4 reading. You can view these values by pressing “RECALL (SETUP)” momentarily or using the optional software. The thermometer has 9,999 memory locations.
ENGLISH ELECTRICAL SPECIFICATIONS Temperature Range J-type -346°F~2192°F -210°C~1200°C K-Type -328°F~2498°F -200°C~1370°C 74K ~ 1642K T-type -328°F~752°F -200°C~400°C 74K ~ 673K E-Type -238°F~1832°F -150°C~1000°C 124K ~ 1273K 0.1°F<1000°F 0.1°C<550°C 0.1K<824K 1°F≥1000°F 1°C≥550°C 1K≥824K 0.1°F<1000°F 0.1°C<750°C 0.1K<1000K 1°F≥1000°F 1°C≥750°C 1K≥1000K 0.1°F<752°F 0.1°C<400°C 0.1K<673K N/A N/A N/A 0.1°F<750°F 0.1°C<400°C 0.
BATTERY REPLACEMENT Always use a fresh replacement battery of the specified size and type. Immediately remove the old or weak battery from the meter and dispose of it in accordance with your local disposal regulations. Old or defective batteries can leak chemicals that corrode electronic circuits. WARNING! To avoid electric shock, be sure to turn off the meter’s power and disconnect thermocouples from any equipment before you remove or install batteries.
