Page 1
DIGITAL THERMOCOUPLE THERMOMETERS USER’S MANUAL Single Dual Thermocouple Thermocouple DT80-1 and DT80-2 Please read this manual carefully and thoroughly before using this product.
The DT80-1 and DT80-2 are thermocouple-type J/K digital thermometers. The DT80-1 is designed to be used with a single thermocouple; the DT80-2 is designed to be fed by two thermocouples configured to deliver a temperature differential.
Simplicity is another asset of thermocouple thermometers. Thermocouples work by measuring the potential difference produced at the junction of two wires made of different metals but exposed to the same temperature. Since the junction is very small, a thermocouple thermometer can be used to measure the temperature at a point reachable by a probe.
OPERATING INSTRUCTIONS Familiarize yourself with the nomenclature in the following two illustrations before using the DT80-1 or DT80-2. BACK, FRONT AND TOP VIEWS Thermocouple T1 input · Thermocouple T2 input (DT80-2 only) Display (see next illustration) Function keys Battery cover...
DISPLAY ELEMENTS Auto power off icon Low battery indicator Hold (freeze) display indicator Offset change indicator Enable Maximum, Minimum and Average recording; also indicates Current Mode. Offset Setup Mode indicator Limit indicates that the alarm function is enabled; Hi and Lo indicate the reason why alarm sounded. T1 - T2: Indicates differential temperature mode (DT80-2 only).
FUNCTION KEYS OVERVIEW Pressing toggles between Celsius and Fahrenheit temperature units (scale chosen is saved upon shutdown and becomes the default of next power up cycle). Pressing enables/disables holding (freezing) of display and updating of data. Pressing and holding enables/disables auto power off function (indicated by In normal operating mode, toggles to select J- or TYPE...
T1 T2 correct thermocouple type in the secondary display. Both the DT80-1 and DT80-2 will save their setting(s) upon shutdown and make them the default when they next power up. To hold (freeze) the display and stop updating measurements, press the key.
Page 9
the standard relative reading. Then, if the temperature rises to 30°C, the display will show 5°C (30° – 25°C). If the temperature falls to 20°C, the display will show - 5°C (20° – 25°C). Pressing the key again disables this function and restores the actual temperature reading to the display.
To compensate for thermocouple error, you must first set the offset value. To do so (recommended each time the thermocouple probe is changed): 1. Press and hold the key. 2. Use the keys, respectively, to increase TYPE or decrease the offset value. The allowable adjustment range is ±9°F (±5°C).
Never use a wet cloth, solvents or water. REPLACEMENT PARTS The DT80-1 ships with a carrying case and one general- purpose K-type thermocouple probe with a beaded tip General P/N TPK500. The DT80-2 ships with two of these probes.
Acceptance of the exclusive repair and replacement remedies described herein is a condition of the contract for purchase of this product. In no event shall General be liable for any incidental, special, consequential or punitive damages, or for any cost, attorneys’ fees, expenses, or...
Remember to include a copy of your proof of purchase, your return address, and your phone number and/or e- mail address. The DT80-1 or DT80-2 are warranted to be free of defects in materials and workmanship for one year after the date of purchase.
Need help?
Do you have a question about the DT80-1 and is the answer not in the manual?
Questions and answers