UEi DT221 User manual

DT222
Digital Thermometer
75.9
°
f
7
7
5
5
.
5
.
.
9
.
.
.
9
9
9
°
°
f
f
f
T1
K
T1
T1
K
K
76.1°f
7
7
6.1
6.1
°
°
f
f
f
T2
K
T2
T2
K
K
INSTRUCTION MANUAL
DT221
Digital Thermometer
75.9
°
f
7
7
5
5
.
5
.
.
9
.
.
.
9
9
9
°
°
f
f
f
T1
K
T1
T1
K
K
1-800-547-5740 • Fax: [phone]
www.ueitest.com • Etmail: [email protected]
Digital Thermometers
DT221/222

1. Introduction........................................................................1
2. Features .............................................................................1
3. Material supplied ..............................................................1
4. LCD display ........................................................................2
5. Warning .............................................................................2
6. Keypad (Controls)...............................................................2
7. Operation ...........................................................................4
(1) Power On / Off ..................................................................4
(2) Auto power off ..................................................................4
(3) Set thermocouple type......................................................4
(4) Taking measurement.........................................................5
(5) Change unit (°C/°F )..........................................................5
(6) Change mode (T1-T2/REL or K / J) ...................................6
(7) MAX / MIN / AVG.............................................................7
(8) Data hold ...........................................................................7
(9) Backlight............................................................................8
8. Specifications ....................................................................8
9. CE Certificate.....................................................................8
10.Trouble shooting ................................................................9
11.Battery replacement and end of life..................................9
12.Warranty. ...........................................................................10

1
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) Auto power off with disable feature (60 minutes).
2) Single (DT221) or dual input (DT222).
3) Large LCD screen.
4) Bright back-lit display
5) Complete with bead wire temperature probes and 9V battery
6) ˚C/˚F select function.
7) REL mode to observe temperature changes
8) Differential (T1-T2) on DT222
MATERIAL SUPPLIED
• Meter
• 9V battery
• Operation manual
• DT221 J-type probe with clip
• DT222 K-type bead probe (2)

2

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.
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.)
Press “UNIT” to select ˚C/˚F.
Freeze display
UNIT
HOLD
KEYPAD (CONTROLS)

3
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. (see page 4)
Press “MAX/MIN” to change operation mode
from measured temperatue -> Max.-> Min.-> Avg. ->
back to live date. The corresponding value will display
on primary LCD. The corresponding value is calculated
since powered on or reset.
Press and hold to change thermocouple type.
J-Type-Black Molded Connector
K-Type-Yellow Molded Connector
Press to activate backlight
MODE
BKLT
SET
PWR
MAX
MIN

(1) POWER ON/OFF
(2) SLEEP MODE (AUTO POWER OFF)
(3) SET THERMOCOUPLE TYPE
4
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.
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. Sleep mode is now disabled.
Verify thermocouple type matches the probe being used.
K-type = Yellow molded plug
J-type = Black molded plug
Press and hold “SET” to switch type.
OPERATION

(4) TAKING MEASUREMENT
5
Make sure you have plugged in K or J type sensore probe on the
top of the meter, if the probe is not plugged appropriate, LCD
shows”---” on the display.
Connect thermocouple. If probe is open or not connected, the
LCD will show ”---”.
Verify thermocouple type is set correctly (see page 4)
Single input model shows T1, dual input model shows T1 and T2
Single Input: (DT221)
Dual Input: (DT222)
Press UNIT button to change unit ˚C or ˚F. The meter default
temperature unit is ˚F. The meter will default to last selected
scale.
Press UNIT
K
K
K
K
K
(5) CHANGE UNIT

(6) T1-T2/RELATIVE
6
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.
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.”
Press MODE
K-TYPE (Yellow Plug) J-TYPE (Black Plug)
Press MODEPress MODE
Press MODE
Press SET
for 2 seconds
K
K
K
K
REL
K
K
REL
K
K
T2 REL
T2 INITIAL
T1 REL
T1 INITIAL
K
K
J
J

(7) MAX/MIN/AVG
(8) DATA HOLD
7
Make sure you have plugged in K or J type sensore probe on the
top of the meter, if the probe is not plugged appropriate, LCD
shows”---” on the display.
Make sure you have plugged in K or J type sensore probe on the
top of the meter, if the probe is not plugged appropriate, LCD
shows”---” on the display.
Press MAX/MIN button to change operation mode from live
data ->MAX -> MIN -> AVG -> back to live data. Corresponding
value will display on upper LCD. These values will reset at
power on or reset.
Freeze display of basic measurements or disable. Press HOLD
button again to go back to the temperature reading.
Reset MAX/MIN/AVG: Press Max/Min button for 2 seconds to
reset MAX/MIN/AVG analysis value. The MAX/MIN/AVG value
is updated to current reading.
K
K
AVG
K
K
MIN
K
K
MAX
K
K
HOLD
K
K

(9) BACKLIGHT
SPECIFICATIONS
Press BKLT to turn on the back light in any function. Back light
function will turn off automatically after 30 seconds.
CE CERTIFICATE
The product complies with EMC directive 2004/108/EC
Technical standard: Emission EN 61326-1:2006 Class B
EN 55011:2009/A1:2010 Group 1 Class B
Immunity EN 61326-1:2006 EN 61000-4-2:2009
EN 61000-4-3:2006 A2:2010
SPECIFICATION DT221 DT222
TEMPERATURE UNIT ˚C or ˚F Selectable
SENSOR INPUT Single Input Dual Input
TEMPERATURE
RANGE K-Type: -328˚F ~ 2498˚F (-200˚C ~ 1370˚C)
J-Type: -328˚F ~ 1922˚F (-200˚C ~ 1050˚C)
DISPLAY
RESOLUTION
0.1˚C (0.1˚F)
ACCURACY ±(0.2% + 1:4)˚F) ±(0.2% + 1˚C)
INPUT PROTECTION
Maximum Voltage of Temperature input is 24DC or AC
TEMPERATURE
COEFFICIENT
0.01% of reading + 0.03˚C per ˚C
0.01% of reading + 0.06˚F per ˚F
When out of range 18˚C~28˚C (64F˚ ~ 82˚F)
SIZE 159 x 55 x 38mm
(L x W x H)
8