INSTRUCTION MANUAL DT221 DT222 Digital Thermometer T1 T1 KK 775.9 5.9 f 5. ° Digital Thermometer T1 T1 KK T2 T2 KK 775.9 5.9 f 5. ° 76.1 7 6.1 f ° 1-800-547-5740 • Fax: (503) 643-6322 www.ueitest.com • Etmail: info@ueitest.
1. Introduction.........................................................................1 2. Features..............................................................................1 3. Material supplied...............................................................1 4. LCD display.........................................................................2 5. Warning..............................................................................2 6. Keypad (Controls)...............................................
INTRODUCTION Thank you for purchasing the UEi DT221 single input DT222 dual input K and J type digital thermometer. This thermometer features a built-in microprocessor and high resolution analog to digital converter chip. The thermocouple probe responds very quickly to a wide range of temperature measurements. The industry standard mini thermocouple jack accepts a wide selection of probe types. FEATURES 1) 2) 3) 4) 5) 6) 7) 8) Auto power off with disable feature (60 minutes).
LCD DISPLAY 1 2 1. Primary LCD: Display T1 (1st thermocouple reading) 2. Secondary LCD: Display T2 (2nd thermocouple on differential or intitial valve for relative mode.) WARNING 1. Always connect thermocouple before turning the unit on for most accurate readings 2. Make sure to plug sensor with correct polarity. Do not be alarmed if erratic readings appear on display prior to normal mode. KEYPAD (CONTROLS) UN Press “UNIT” to select ˚C/˚F.
MODE PWR Press “MODE” to change operation mode T1, T1-T2 or REL. The corresponding reading will display on the primary LCD. The secondary LCD will always display T2 reading in differiential (DT222). It will display the initial value when using “REL” mode. Press and hold “PWR” to turn on the meter or press it to turn off the meter. The meter will turn off automatically after 60 minutes if you don’t press any key. Press “HOLD” and “PWR” buttons to disable Auto sleep mode.
OPERATION (1) POWER ON / OFF Note: Make sure you have plugged in the thermocouple probe before turning on. Press and hold PWR button to turn on the meter. While the meter is on, press PWR button to turn off the meter. (2) SLEEP MODE (AUTO POWER OFF) The meter will turn off automatically after 60 minutes if no buttons are pressed. To disable auto power off function, when the meter is off, press and hold “HOLD” button then press “PWR” button to turn on the meter, the primary LCD shows the following.
(4) TAKING MEASUREMENT Connect Make sure thermocouple. you have plugged If probe in Kis or open J type or not sensore connected, probe the on the top ofwill LCD theshow meter, ”---”. if the probe is not plugged appropriate, LCD shows”---” Verify thermocouple on the display. type is set correctly (see page 4) Single input model shows T1, dual input model shows T1 and T2 Single Input: (DT221) K Dual Input: (DT222) (5) CHANGE UNIT Press UNIT button to change unit ˚C or ˚F.
(6) T1-T2/RELATIVE Press MODE button to change operation, options include T1-T2 (DT222 only), T1-REL, T2-REL (DT222). The corresponding reading will display on the primary and secondary LCD. Press MODE K K K K Press MODE Press MODE REL T2 REL K REL Press MODE T1 REL K T1 INITIAL T2 INITIAL K K Change Thermocouple Type: Press SET button for 2 seconds to change thermocouple type K or J. NOTE: Always verify proper selection of thermocouple type see page 3 “Set.
(7) MAX/MIN/AVG Press MAX/MIN Make sure you have button plugged to change in K oroperation J type sensore mode from probelive on the top of->MAX data the meter, -> MIN if the -> AVG probe -> isback not to plugged live data. appropriate, Corresponding LCD shows”---” value will display on the on display. upper LCD. These values will reset at power on or reset. MAX K K K K MIN AVG K K K K Reset MAX/MIN/AVG: Press Max/Min button for 2 seconds to reset MAX/MIN/AVG analysis value.
(9) BACKLIGHT Press BKLT to turn on the back light in any function. Back light function will turn off automatically after 30 seconds. SPECIFICATIONS DT221 SPECIFICATION DT222 ˚C or ˚F Selectable TEMPERATURE UNIT SENSOR INPUT Single Input TEMPERATURE RANGE K-Type: -328˚F ~ 2498˚F (-200˚C ~ 1370˚C) J-Type: -328˚F ~ 1922˚F (-200˚C ~ 1050˚C) Dual Input DISPLAY RESOLUTION 0.1˚C (0.1˚F) ±(0.2% + 1:4)˚F) ±(0.
TROUBLESHOOTING E-1 Thermocouple 1 circuit error or over range E-2 Thermocouple 2 circuit error or over range E-3 Over/ under operation temperature E-4 Hardware error * LCD display “---” disconnected or open thermocouple.
Limited Warranty The DT221 and DT222 are warranted to be free from defects in materials and workmanship for a period of three years from the date of purchase. If within the warranty period your instrument should become inoperative from such defects, the unit will be repaired or replaced at UEi’s option. This warranty covers normal use and does not cover damage which occurs in shipment or failure which results from alteration, tampering, accident, misuse, abuse, neglect or improper maintenance.
