UT320D
Mini Single Input Thermometer
User Manual

Introduction

UT320D is a dual input thermometer that accepts Type K and J thermocouples.

Features:

• Wide measurement range
• High measurement accuracy
• Selectable thermocouple K/J. Warning: For safety and accuracy, please read this manual before use.

Open Box Inspection

Open the package box and take out the device. Please check whether the following items are deficient or damaged and contact your supplier immediately if they are.

1. UT-T01——————- 2 pcs
2. Battery: 1.5V AAA ——— 3 pcs
3. Plastic holder————– 1 set
4. User manual—————- 1

Safety Instructions

If the device is used in a manner that is not specified in this manual, the protection provided by the device might be impaired.

1. If the low power symbol appears, please replace the battery.
2. Do not use the device and send it to maintenance if a malfunction occurs.
3. Do not use the device if explosive gas, steam, or dust surrounds it.
4. Do not input overrange voltage (30V) between thermocouples or between thermocouples and the ground.
5. Replace parts with the specified ones.
6. Do not use the device when the rear cover is open.
7. Do not charge the battery.
8. Do not throw the battery to fire or it may explode.
9. Identify the polarity of the battery.

Structure

1. Thermocouple jacks
2. NTC inductive hole
3. Front cover
4. Panel
5. Display screen
6. Buttons

Symbols

1) Data hold 2) Auto power off 3) Maximum temperature 4) Minimum temperature 5) Low power

6) Average value 7) Difference value of T1 and T2 8) T1, T2 indicator 9) Thermocouple type 10)Temperature unit

Buttons and setup

: short press: power ON/OFF; long press: switch ON/OFF auto shutdown function.
: auto shutdown indicator.
: short press: temperature difference value T1-1-2; long press: switch temperature unit.
: short press: switch between MAX/MIN/ AVG modes. Long press: switch thermocouple type
: short press: switch ON/OFF data hold function; long press: switch ON/OFF the backlight

Operation instructions

1. Thermocouple plug 1
2. Thermocouple plug 2
3. Contact point 1
4. Contact point 2
5. Object being measured
6. Thermometer

1. Connection
   A. Insert thermocouple into input jacks
   B. Short press to turn on the device.
   C. Setup the thermocouple type (according to the type being used)
   Note: If the thermocouple is not connected to input jacks, or in an open circuit, “—-” appears on the screen. If over range occurs, “OL” appears.
2. Temperature display
   Long press to select temperature unit.
   A. Place the thermocouple probe on the object to be measured.
   B. Temperature is displayed on the screen. Note: It takes several minutes to steady the readings if thermocouples are just inserted or replaced. The purpose is to ensure the accuracy of cold junction compensation
3. Temperature difference
   Short press , temperature difference (T1-T2) is displayed.
4. Data hold
   A. Short press to hold the data displayed. HOLD symbol appears.
   B. Short press again to switch off the data hold function. HOLD symbol disappears.
5. Backlight ON/OFF
   A. Long press to turn on the backlight.
   B. Long press again to turn off the backlight.
6. MAX/MIN/AVG value
   Short press to cycle switch between MAX, MIN, AVG, or regular measurement. The corresponding symbol appears for different modes. E.g MAX appears when measuring maximum value.
7. Thermocouple type
   Long press to switch thermocouple types (K/J). TYPE: K or TYPE: J is type indicator.
8. Battery replacement

Please replace the battery as figure 4 shown.

Specifications

Range	Resolution	Accuracy	Remark
-50^-1300t (-58-2372 F)	0. 1°C (0. 2 F)	±1. 8°C (-50°C– 0°C) ±3. 2 F ( (-58-32 F)	K-type thermocouple
		± [O. 5%rdg+1°C] (0°C-1000’C) ± [0. 5%rdg+1. 8’F] (-32-1832’F)
		± [0. 8%rdg+1 t] (1000″C-1300t ) ± [0. 8%rdg+1. 8 F] (1832-2372 F)
-50—1200t (-58-2152, F)	0.1 °C (O. 2 F)	±1. 8t (-50°C— 0°C) ±3. 2’F ( (-58-32-F)	K-type thermocouple
		± [0. 5%r dg+1°C] (0t-1000°C) ± [0. 5%rdg+1. 8°F] (-32-1832°F)
		± [0. 8%rdg+1°C] (1000°C—–1300°C) ± [0. 8%rdg-F1. 8°F] (1832-2192°F)

Table 1
Note: operating temperature: -0-40°C (32-102’F) (thermocouple error is excluded in specifications listed above)

Thermocouple specifications

Model	Range	Scope of application	Accuracy
UT-T01	-40^260°C (-40-500 F)	Regular solid	±2″C (-40–260t) ±3.6 ‘F (-40^-500°F)

UT-T03	-50^-600`C (-58^-1112°F)	Liquid, gel	±2°C (-50-333°C) ±3.6’F (-58-631’F)
			±0. 0075*rdg (333.-600°C) ±0. 0075*rdg (631-1112’F)
UT-T04	-50—600°C (58^-1112’F)	Liquid, gel (food industry)	±2°C (-50-333°C) ±3.6°F (-58-631 ‘F)
			±0. 0075*rdg (333^600°C) ±0. 0075*rdg (631-1112 F)
UT-T05	-50 –900`C (-58-1652’F)	Air, gas	±2°C (-50-333°C) ±3.6’F (-58-631 F)
			± 0. 0075*rdg (333.-900t) ±0. 0075*rdg (631-1652 F)
			±2°C (-50.-333°C) + 3.6′”F (-58.-631 ‘F)
UT-T06	-50 — 500`C ( -58.-932″F)	Solid surface	±0. 0075*rdg (333^-500°C) ±0. 0075*rdg (631 —932 F)
UT-T07	-50-500`C ( -58^932°F)	Solid surface	±2`C (-50-333°C) +3.6″F (-58-631 ‘F)
			+ 0. 0075*rdg (333.-500t) ±0. 0075*rdg (631-932 F)

Table 2
Note: Only K-type thermocouple UT-T01 is included in this package.
Please contact the supplier for more models if needed.

UNI-TREND TECHNOLOGY (CHINA) CO., LTD.
No6, Gong Ye Bei 1st Road, Songshan Lake National High-Tech Industrial
Development Zone, Dongguan City, Guangdong Province, China
Tel: (86-769) 8572 3888
http://www.uni-trend.com

Documents / Resources

	UNI-T UT320D Mini Single Input Thermometer [pdf] User Manual UT320D, Mini Single Input Thermometer
	UNI-T UT320D Mini Single Input Thermometer [pdf] User Manual UT320D Mini Single Input Thermometer, UT320D, Mini Single Input Thermometer

References

• User Manual