Uni-T UT325 Bruksanvisning

Uni-T Miljötermometer UT325

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Refer to safety information in Table 1 and the international symbols in Table 2.

Table 1. Safety Information

Before using the thermometer inspect the case. Do not use the thermometer if it

appear damaged Look or cracks or missing plas ics . f t . P ay par icular en ion t att t to

the insulation around the connectors.

Disconnect the thermocouple(s) from the thermometer before opening the case.

Replace the batteries as soon as the battery indicator (

) appears. The

possibility of false readings can lead to personal injury.

Do not use the thermometer if it operates abnormally. Protection may be

impaired. When in doubt, have the thermometer serviced.

Do not operate the thermometer around explosive gas, vapor, or dust.

Do not apply more than the rated voltage, as marked on the thermometer (30V),

between the thermocouple(s), or between any thermocouple and earth ground.

When potential di ferencesf are anticipated between the thermocouples, use

electrically insulated thermocouples.

When servicing the thermometer, use only specified replacement parts.

Do not use the thermometer with any part of the case or cover removed.

A warning identified conditions and actions that pose hazards to the user. To avoid

electrical shock or personal injury, follow these guidelines:

Warning

Caution

A caution identifies conditions and actions that may damage the meter or the

equipment under test.

Use the proper thermocouples, function, and the range of your thermometer.

W t t hen carrying wo hermocouples measurement, make sure here are t no

potential differences between two thermocouples.

Do not attempt to recharge the battery.

Match the + and – polarities of the battery with the battery case.

Table 2. International Symbols

Refer to the manual for information about this feature

Complies with European Union directives

Battery

Get Acquainted with Your Thermometer

Unless otherwise specified, all the descriptions apply to all Models of UT321,

UT322, UT323 and UT325.

To become familiar with the thermometer, study the following:

Figure 1 and Table 3 for components;

Figure 2 and Table 4 for LCD display;

Figure 3-a and 3-b and Table 5 for button functions;

Figure 1. Components

Table 3. Components

Display

Buttons

Thermocouple T1 input

Thermocouple T2 input (UT323 and UT325 only)

USB Port

SIGN Port - Over Limit Signal Output (UT323 and UT325 only)

NTC

Battery Door

9V battery (6F22 )

Table 4. LCD Display

Setup is in progress when the icon blinks

Display readings of maximum, minimum and average

Data Transferring is in progress

Logged readings are displayed when the icon blinks

Low battery indicator. Replace the battery

The thermocouple type

The temperature units

Secondary Display 2

Under Calibration mode when the icon blinks. The displayed reading is fixed .

Secondary Display 1

The thermocouple measurement includes an offset. See “Changing Setup

Options”

Readings are being logged when the icon blinks

Primary Display

Data hold function is active.

The symbol of display backlight

Figure 3-a UT321 and UT323 Keypad

Figure 3-b UT322 and UT325 Keypad

Table 5. Buttons

Press to turn the thermometer on or off

Press to turn the display backlight on and off.

Press to freeze or unfreeze the displayed readings

Press to switch between Celsius (ºC), Fahrenheit(ºF), and Kelvin (K)

Press to step through the maximum, minimum, and average

readings. Press and hold to exit this function.

Press to step through K-, J-, T-, E- (R-, S-, N-) type thermocouple.

Press to select and show T1, T2 and T1-T2 (differential temperature

measurement) in the primary or secondary display 1

Press to enter USB mode and the USB icon blinks. Press again

to exit USB mode.

Press to start or stop logging.

(See “Using Memory - Starting and Stopping Logging”.)

Press to show logged readings

Press again to stop.

MAX NMI

HOLD

ºC ºF

SEND

STORE

RECALL

Press to start or exit Setup.

Press to scroll the Setup option you want to change

(See “Changing Setup Options”)

After entering the Setup mode, press to increase the displayed setting .

(See “Changing Setup Options”)

After entering the Setup mode, press to decrease the displayed setting .

(See “Changing Setup Options”)

Confirm button.

(See “Changing Setup Options”)

ENTER

SETUP

Using the Thermometer

1) Plug the thermocouple(s) into the input connector(s).

2) Press the power button to turn on the thermometer.

3) Set the type of thermocouple(s) to be the same with the one plugged into the

input connector(s).

If no thermocouple is plugged into the selected input terminal or the thermocouple

is “open” or the over-range positive deviation is too big, the display

shows “_ _ _ _ “.

Changing Setup Options

Use Setup to change the following settings:

Logging interval

Thermocouple type Offset (T1) Offset (T2) (UT322 and

UT325 only) Sleep Mode Line Frequency Time (S-T) Low Limit Alarm

(Lo) (UT323 and UT325 only)

High Limit Alarm (Hi) (UT323 and UT325 only)

Over Limit Signal Output (SI) ON/OFF (UT323 and UT325 only) Normal

Tem rature pe Co penm sation (NTC) ON /OFF

DEBUG ON (UT/OFF 323 and

UT325 only) Save setting and return to normal measurement mode.

When the thermometer is in Setup mode, the display shows and blinks SETUP.

Press to start or exit Setup.SETUP

Press to scroll through the Setup options you want to change.SETUP

The logging interval determines how often the thermocouple stores logged

readings in memory. You choose the length of the logging interval. See “Using

Memory”.

Press until the display shows INTERVAL.SETUP

The thermometer stores logged readings at the end of each loggi ng interval.

You ca n a g or select logging interval by pressin . Holding dow causesn or

the numbe r to change more quickly. The maximum interval is 59:59 and the

minimum interval : . Wis 00 00 hen he t logging in erval t is 00 00 . , you need to st ore

t he readings manually as the auto store feature will be disabled.

1. Press until the display shows TYPE.SETUP

2. Press

or to select the thermocouple type you want including K-, J-, E- type

(UT323 and UT325 have extra R-, S- and N- ttype, UT321/UT325 can use

TYPE button to change directly)).

1. Press until the display shows OFFSET and T1SETUP

2. Press

or to change the offset value. The offset range is -6~6.

1. Press until the display shows OFFSET and T2SETUP

2. Press

or to change the offset value. The offset range is -6~6.

Figure 2. Display LCD Display

LCD Display

to change until the desired sleep time is obtained.

toggle between time format "h:m" and "m:s".

5. If you don't change this option, it means the time that the meter has run

through currently.

6. The system counts the time when the user turns on the thermometer. It will

be automatically cleared once the Thermometer is dis-energized.

6. The Min.value for low alarm is the lower limit value of measuring range of the

applied thermocouple.

7. The Max. value for low alarm is the setting high alarm limit value if high alarm

is enabled (if still higher than high alarm limit value, Max. value=High Alarm

Limit Value-1), otherwise this Max. value is the upper limit value of measuring

range of the applied thermocouple.

Min. value

Max. value

High Alarm Limit Value-1

Overview

The Uni- rend Model UT321, UT322, UT323 and UT325 Thermometers T

(‘the thermometer) are microprocessor-based, digital thermometers designed

to us e t , , T-, , , t t (t t ex ernal J- K- E- R- S- and N- ype hermocouples empera ure

probes) as temperature sensors.

UT321: single input(T1), suitable for K-, J-, T- and E- type thermocouples

UT322: dual input(T1,T2), suitable for K-, J-, T- and E- type thermocouples

UT323: single input(T1), suitable for K-, J-, T-, E-, R-, S- and N- type thermocouples.

Equipped with over limit alarm, over limit signal output and user self-debug

features.

UT325: dual input(T1,T2), suitable for K-, J-, T-, E-, R-, S- and N- type

thermocouples.

Equipped with over limit alarm, over limit signal output and user self-debug features.

Use the thermometer only as specified in this manual. Otherwise, the protection

provided by the meter may be impaired.

Safety Information

Produktspecifikationer

Varumärke:	Uni-T
Kategori:	Miljötermometer
Modell:	UT325
Vikt:	270 g
Bredd:	85 mm
Djup:	30 mm
Höjd:	175 mm
Batterityp:	6F22
Produktens färg:	Grey, Red
Skärmtyp:	Digital
Batterispänning:	9 V
Batterier medföljer:	Ja
Temperatur mätenheter:	F, °C
Ändamål:	Ficka
Intervall för temperaturmätning:	- ° C