UEi DT720 Manual de usuario

DT720

Digital thermometer

EXIT

ENTER

CLEAR

T1-T2

MIN/

MAX

RECALL

SETUP

HOLD

LOG

TYPE

T1 - T2

m:s

ºF

INSTRUCTION MANUAL

ENGLISH

Digital Temperature Logger

DT720

1-800-547-5740

www.ueitest.com • email: [email protected]

ISED

Table Of Contents

FEATURES ..............................................................................3

SAFETY NOTES...................................................................... 3

CONTROLS AND INDICATORS ..........................................4

LCD DISPLAY FUNCTIONAL DESCRIPTION ..................... 5

OVERVIEW ...........................................................................6-7

OPERATING INSTRUCTIONS.........................................7-12

1. Temperature units. ................................................. 7

2. Date .................................................................... 7-8

3. Time .......................................................................8-9

4. Type ....................................................................... 9

5. APO ....................................................................... 9

6. Interval ................................................................. 9

7. Offset ...................................................................10

8. Factory Reset .........................................................10

9. Exiting...................................................................... 10

Displaying Temperature...................................... 10-11

Holding the Displayed Temperature ........................ 11

Viewing the MIN/MAX/AVG Readings ..................... 11

Using the Offset to Compensate for Probe Errors ...11

How to Use Memory .................................................11

Starting and Stopping Logging .................................12

Clearing Memory ........................................................12

Viewing Logged Readings ......................................... 12

MAINTENANCE........................................................... 12-13

Periodic service......................................................12-13

Cleaning and Decontamination.................................. 13

Battery Replacement ..................................................13

SPECIFICATIONS............................................................15-16

Environmental .............................................................15

General........................................................................ 15

ATT29 K-Type Thermocouple...................................... 15

Electrical...................................................................... 16

FCC INFORMATION ......................................................... ..17

WARRANTY ........................................................................18

Features

• 2 channel

• Large backlit multi-parameter display

• Accepts J, K, E, T, R, S type thermocouples

• Min/Max/Avg

• Hold

• Auto Power Off

• Fahrenheit or Celsius scale

• Temperature differential mode (T1-T2)

• Time display

Safety Notes

These are a few common safety practices for those working

around temperature critical environments:

• Follow the manufacturer’s maintenance procedures when

servicing equipment

• Place ONLY thermocouples (type K, J, T, E, R, S) in the DT720

thermocouple ports

• Make sure your meter is set for the proper thermocouple type

you are using

• Be sure the thermocouple you use can withstand the

temperature extreme it may be exposed to in your

service task

• Properly maintain your thermometer and calibrate it regularly

Controls and Indicators

A. Thermocouple Inputs

B. T1-T2 (Enter)

C. Min/Max (down arrow)

D. Power, Back light

E. Recall, Setup (Exit)

F. Hold, Log (up arrow)

G. Clear (Recall/Setup & Hold/Log)

DT720 Digital thermometer

EXIT

ENTER

CLEAR

T1-T2

MIN/

MAX

RECALL

SETUP

HOLD

LOG

TYPE

T1 - T2

m:s

ºF

30V

MAX

(top view)

LCD Display Functional Description

A. Thermocouple type

B. SETUP: Setup in progress

C. RECALL: the logged readings are displayed.

D. OFFSET: the thermocouple measurement also includes

an offset.

E. HOLD: the display readings do not change.

F. BATTERY LEVEL

G. LOG: Readings are being logged.

H. Temperature Unit: °F, °C, K

I. Memory

J. Min/Max/Avg

K. Temperature Differential: T1-T2

L. TIME DISPLAY: Shows time duration of test or log. Format

options available in SETUP.

h:m, m:s 24 (military) time

M. APO

N. T1/T2

TYPE

K J E

T R S

MEMORY MIN MAX

AVG

APO

T1 - T2

h:m m:s

ºF

ºC

SETUP

OFFSET

HOLD

LOG

RECALL

B C D E

1. POWER (BACKLIGHT)

Press and hold the “ ” button to turn the

thermometer on and off. Press the “ ” button to

turn the backlight on and off. The backlight turns off

automatically after 60 seconds without any button

pressed. If the battery is low, the backlight is disabled.

2. T1/T2/ENTER

When you press the button, the secondary display

scrolls through the differential temperature and the

internal temperature in order.

The “ENTER” function is activated in the “SETUP”

mode only.

3. MIN/MAX ( )

Press the button to step through the maximum,

minimum, and average readings in the secondary

display.

When viewing logged readings, the maximum,

minimum, and average measurements are displayed.

Press and hold the “MIN/MAX” button stop viewing

MIN/MAX readings.

The “ ” scroll function is activated in the “RECALL”

and “SETUP” modes only.

4. HOLD/LOG ( )

Press the “HOLD” button to turn the “HOLD” function

ON or OFF. Press and hold the “LOG” button to enter

LOGGING mode, press and hold the “LOG” button to

exit LOGGING mode.

The “ ” scroll function is activated in the “RECALL”

and “SETUP” modes only.

5. LOGGING CLEAR

Press the “RECALL” and “HOLD” buttons

simultaneously displays “SUrE”.

Then, if you press the “ENTER” button, “CLr” is

displayed and the logging data is cleared.

If you press any button other than the “ENTER” button,

“Clear” is canceled.

6. RECALL SETUP (EXIT)

Press the button to recall or stop viewing logged and

MIN/MAX readings. Press and hold the button for more

MIN/

MAX

HOLD

LOG

HOLD

LOG

ENTER

T1-T2

EXIT

RECALL

SETUP

EXIT

RECALL

SETUP

Overview

EXIT

RECALL

SETUP

than 1 second to start or exit “SETUP”.The “EXIT” function

is activated in the “RECALL” and “SETUP” mode only.

7. RECALL

Press the “RECALL” button to enter the recall mode.

Press the “HOLD ( )” button to move to the next address

and press the “MIN/MAX ( )” button to move to the

previous address.

In Recall mode, press and hold “MAX/MIN” to step through

the recorded readings of min, max and average. Press the

“HOLD ( )” or “MIN/MAX ( )” button to exit the MIN/

MAX/AVG mode of the Recall mode.

Press “RECALL” button to exit Recall mode.

Operating Instructions

Before Operating

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

2. Press “ “ to turn the instrument on. After 1 second, the

thermometer displays the first reading and its differential

temperature. If no thermocouple is plugged into the selected

input or the thermocouple is “OPEN”, the display shows “----”.

How to Change Setup Options

Use “SETUP” to reset the thermometer or change the

temperature units, time units, time settings, thermocouple type,

Auto-Power-Off mode, logging interval, and offset.

Entering and Exiting Setup

1. Temperature units.

If you press the “ENTER” button while the “Unit” icon is

blinking, “C” (or F, K) will blink. With “C” (or F, K) blinking,

use the “ ”, “ ” buttons to change and press the “ENTER”

button to save the changed value. If you do not want to save the

changed value, press the “EXIT” button.

2. Date If you press “ ” while the “Unit” icon is blinking, “dAtE”

blinks. Press “ENTER” button while “dAtE” blinks. Then press

“ ” or “ ” button to move to “YEAr”, “ Mon”, “dAtE”.

Year

Press the “ENTER” button while the “YEAr” icon blinks.

Change the year with “ ” or “ ” button while “20YY” is blinking.

Press the “ENTER” button to save the changed value. If you do

not want to save the changed value, press the “EXIT” button.

Month

Press the “ENTER” button while the “Mon” icon blinks.

Change month with “ ” or “ ” button while “MM”:dd

is blinking.

Press the “ENTER” button to save the changed value. If you do

not want to save the changed value, press the “EXIT” button.

Date

Press the “ENTER” button while the “dAtE” icon blinks.

Change the date with the “ ” or “ ” button while mm:”DD”

is blinking.

Press the “ENTER” button to save the changed value. If you do

not want to save the changed value, press the “EXIT” button.

3. Time

While the icon at the top of the LCD is blinking, press the “ ”,

“ ” buttons to move to the “tIME” item.With the “tIME” icon

blinking, press the “ENTER” button.

Press “ ”, “ ”button to move to “UnIt”, “Hour”, “ Min”, “

SEC” item.

Press the “ENTER” button to save the changed value. If you do

not want to save the changed value, press the “EXIT” button.

Unit (“h:m”, “m:s”)

Press the “ENTER” button while the “Unit” icon blinks.

While “h:m” or “m:s” is blinking, press the “ ”, “ ” buttons

to change.

Press the “ENTER” button to save the changed value.If you do

not want to save the changed value, press the “EXIT” button.

Hour

Press the “ENTER” button while the “Hour” icon blinks.

Press the “ ” or “ ” button to change the time while

“HH”:mm is blinking.

Press the “ENTER” button to save the changed value. If you do

not want to save the changed value, press the “EXIT” button.

Minute

Press the “ENTER” button while the “Min” icon blinks.

While hh:”MM” is blinking, press the “ ” or “ ” button to

change the minute.

Press the “ENTER” button to save the changed value. If you do

not want to save the changed value, press the “EXIT” button.

Second

Press the “ENTER” button while the “SEC” icon blinks.

Press “ ” or “ ” button to change seconds while “SS”

blinks.

Press the “ENTER” button to save the changed value. If you do not

want to save the changed value, press the “EXIT” button.

4. Type

While the icon at the top of the LCD is blinking, press the “ ”,

“ ” buttons to move to “tYPE”.

Press the “ENTER” button while the “tYPE” icon blinks. Change

the type by pressing the “ ”, “ ” button while the “ K “ (or

J, E, t, r, S) icon is blinking.

Short press the “ENTER” button to save the changed value.

If you do not want to save the changed value, press the “EXIT”

button.

5. APO

While the icon at the top of the LCD is blinking, press “ ”,

“ ” buttons to move to “APO”.

Press the “ENTER” button while the “APO” icon blinks.

While “On-1” (or ~ On-9, oFF) is flashing, use the “ ”, “ ”

buttons to change the content.

Press “ENTER” button to save the changed value. If you do not

want to save the changed value, press the “EXIT” button.

* On-1: 10min, On-2: 20min ~ On-9: 90min, Off

6. Interval

While the icon at the top of the LCD is blinking, press the “ ”,

“ ” buttons to move to “Int.V”.

With the “Int.V” icon blinking, press the “ENTER” button.

While the “In-1” (~In-4, uSEr, oFF) icon is blinking, press the

“ ”, “ ” buttons to change the content.

User setting: 00:00 00 ~ 23:59 59 (23 hours 59 minutes 59 seconds)

1) Press the “ENTER” button while the “uSEr” icon is blinking.

2) While the “HH” icon is blinking, press the “ ”,

“ ” buttons to change the value and then press the

“ENTER” button.

3) With the “MM” icon blinking, press “ ”, “ ” to change

the value and then press the “ENTER” button.

4) While the “SS” icon is blinking, press the “ ”, “ ”

buttons to change the value, and then press the “ENTER”

button. Press the “ENTER” button to save the changed

value. If you do not want to save the changed value, press

the “EXIT” button.

* In-1: 1sec, In-2 : 10sec, In-3 : 1min, In-4 : 10min

* User : 00:00 00~23:59 59 (00 hours 00 minutes 00 seconds to 23

hours 59 minutes 59 seconds)

7. Offset

While the icon at the top of the LCD is blinking, press the “ ”,

“ ” buttons to move to the “OFSt” item.

Press the “ENTER” button with the “OFSt” icon blinking.

While the “ t1 “~” t4 “ icon is blinking, press the “ ”, “

” buttons to change the value, then press the “ENTER” button.

While the “XX” icon is blinking, press the “ ”, “ ” buttons

to change the value, and then press the “ENTER” button.

* °C & K: (5.0 ~ -5.0), °F = (9.0 ~ -9.0)

8. Factory Reset

While the icon at the top of the LCD is blinking, press “ ”,

“ ” to move to “rESt”.

With the “rESt” icon blinking, press the “ENTER” button.

While the “ no “, “ YES” icon is blinking, press the “ ”,

“ ”buttons to change, then press the “ENTER” button.* After

selecting “ YES”, press “Enter” to save the factory default

status.

9. Exiting or continuing the “SETUP” menu. While the icon at the

top of the LCD is blinking, press “ ”, “ ” buttons to move to

“SUrE”.

Press “ENTER” button while “SUrE” blinks.

Press “ ”, “ ” button to change while “ no “, “ YES” blink

and press “ENTER” button.

NOTE: Press “”or “ ” to scroll to the setup option you want

Displaying Temperature

1. Press RECALL/SETUP button

Type

While the icon at the top of the LCD is blinking, press the “”,

“ ”buttons to move to “tYPE”.

Press the “ENTER” button while the “tYPE” icon blinks.

Change the type by pressing the “”, “ ”button while the “ K “

(or J, E, t, r, S) icon is blinking

Short press the “ENTER” button to save the changed value.

If you do not want to save the changed value, press the “EXIT”

button.

2. Hold or attach the thermocouple(s) to the measurement location.

The temperature reading appears in the selected display.

3. If you press the”

ENTER

T1-T2

”button, the internal temperature for T1, the

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