Greenlee TML-30 Manual de usuario

TML-30

TEMPERATURE

METER / LOGGER

INSTRUCTION MANUAL

Read and understand all of the instructions

and safety information in this manual before

operating or servicing this tool.

K T1- T2

REC MAX MIN AVG

°C

°F

°C

°F

Down Load

Type K/J THERMOMETER

T1 T2

REL

FCLOCK

MAX

MIN

AVG

REC

ERASE INTV

SETUP

T1 T2

T1-T2

HOLD

OFF

60V

24V

MAX

60V

24V

MAX

Description

The Greenlee TML-30 is a hand-held testing device intended to measure temperature (Celsius

and Fahrenheit). It can accommodate one or two K-type or J-type thermocouples, purchased

separately, and has a built-in memory for logging measured data.

Once data is collected in the meter, it can be downloaded to a PC (software and cable included)

where the data can be viewed in a list or a graph, saved to a file, and exported to a spreadsheet

application such as Microsoft Excel®. While the meter is connected to a PC, users can view

real-time readings and record the data on the PC.

Safety

Safety is essential in the use and maintenance of Greenlee tools and equipment. This

instruction manual and any markings on the tool provide information for avoiding hazards and

unsafe practices related to the use of this tool. Observe all of the safety information provided.

Purpose

This instruction manual is intended to familiarize all personnel with the safe operation and

maintenance procedures for Greenlee TML-30 Temperature Meter / Logger.

Keep this manual available to all personnel.

Replacement manuals are available upon request at no charge.

Greenlee and are registered trademarks of Greenlee Textron.

IBM is a registered trademark of International Business Machines. Windows and Excel are

registered trademarks of Microsoft Corporation.

KEEP THIS MANUAL

TML-30

Important Safety Information

Read and understand this material before operating or servicing

this equipment. Failure to understand how to safely operate this

tool can result in an accident causing serious injury or death.

This symbol is used to call your attention to hazards or unsafe practices which could

result in an injury or property damage. The signal word, defined below, indicates the

severity of the hazard. The message after the signal word provides information for

preventing or avoiding the hazard.

SAFETY ALERT SYMBOL

Immediate hazards which, if not avoided, WILL result in severe injury or death.

Hazards which, if not avoided, COULD result in severe injury or death.

Hazards or unsafe practices which, if not avoided, MAY result in injury or property

damage.

Important Safety Information

Electric shock and fire hazard:

• Do not expose this unit to rain or moisture.

• Do not use the unit if it is wet or damaged.

• Use accessories that are appropriate for the application. See the category and

voltage rating of the accessory.

• Inspect the accessory before use. It must be clean and dry, and the insulation must

be in good condition.

• Use this unit for the manufacturer’s intended purpose only, as described in this

manual. Any other use can impair the protection provided by the unit.

Failure to observe these warnings can result in severe injury or death.

Electric shock hazard:

Contact with live circuits can result in severe injury or death.

Electric shock hazard:

• Do not apply more than the rated voltage between any two input terminals, or

between any input terminal and earth ground.

• Do not contact any uninsulated portion of the accessory.

Failure to observe these warnings can result in severe injury or death.

TML-30

Important Safety Information

• Do not operate with the case open.

• Before opening the case, remove the accessory from the circuit and shut off the unit.

Failure to observe these warnings can result in severe injury or death.

• Do not attempt to repair this unit. It contains no user-serviceable parts.

• Do not expose the unit to extremes in temperature or high humidity.

See Specifications.

Failure to observe these precautions can result in injury and can damage the unit.

Using this unit near equipment that generates electromagnetic interference can result

in unstable or inaccurate readings.

K T1- T2

REC MAX MIN AVG

°C

°F

°C

°F

Down Load

Type K/J THERMOMETER

T1 T2

REL

FCLOCK

MAX

MIN

AVG

REC

ERASE INTV

SETUP

T1 T2

T1-T2

HOLD

OFF

60V

24V

MAX

60V

24V

MAX

RS232

Identification

1. Display LCD

2. ON / HOLD / OFF Press to turn power on or off, or to select the Hold function.

3. MAX / MIN / AVG Press to collect maximum, minimum and average temperatures

over time. Also used to increment during setup.

4. REL / J Press to select Relative Measurement function, or to use a J-type

thermocouple. Also used as cursor advance during setup.

5. T1 / T2 / T1-T2 Press to select the measurement function. Also used to enter

Setup function.

6. REC / ERASE Press to record data; erases the data when the memory is full.

Also used in setup to set the recording interval in seconds.

7. °C / °F Press to select a temperature scale. Also used to set the date and

time in setup.

8. T1 2-pin connector for temperature probe T1

9. T2 2-pin connector for temperature probe T2

10. RS-232 port Personal computer interface

TML-30

Display Icons

13. Battery low

14. - 888.8 Primary display

OL Overload (the measurement is beyond the capability of the unit)

–- - - - No input from thermocouple

15. Hold Function is enabled

16. K K-type thermocouple is selected

17. T1-T2 Indicates the measurement on the primary display (T1, T2, or T1-T2)

18. REC Indicates that recording is in process

19. ∆Relative Mode (the difference between two readings) is selected

20. Memory

21. MAX Maximum recorded measurement

22. MIN Minimum recorded measurement

23. AVG Average of the recorded measurements

24. °C °F Celsius or Fahrenheit

25. -000.0 Secondary display

26. T1 T2 Indicates the measurement on the secondary display (T1 or T2)

27. Timer

28. 00-00 / 00:00 Date (shown immediately after pressing ON) and time (shown after the

date disappears)

Symbols

on the Unit

Warning –Read the

instruction manual

Double insulation

K T1-T2

REC MAX MIN AVG

°C

°F

°C

°F

18 21 22

28 26

Meter Operation

Turning the Meter On and Off

1. Connect temperature probe(s) to the meter.

2. Press ON/HOLD/OFF to turn the meter on. The meter performs a self-test. “tESt” indicates

that the test is in progress. “PASS” indicates that the meter has passed the self-test.

3. To turn the meter off, press and hold ON/HOLD/OFF. The display counts down (3, 2, 1)

and the meter turns off.

4. Release the button.

Holding a Reading

After turning the meter on, readings can be stopped and held. During this time no further readings

are recorded. To hold a reading, press ON/HOLD/OFF. To release the function, press again.

Measuring Maximum and Minimum Temperatures

The TML-30 temporarily stores the maximum and minimum temperature readings of the

primary thermocouple and averages the last ten readings. It also indicates the elapsed time

at which the maximum and minimum readings were taken and how long the mode has been

running. The information in this mode is not recorded in the database.

NOTE: All other functions are disabled while in this mode, except ON/HOLD/OFF.

1. Press T1 / T2 / T1-T2 to select the primary thermocouple.

2. Press MAX/MIN/AVG to start the clock and to record the maximum temperature.

“MAX”appears on the display. The maximum temperature appears in the display and

updates as new values come in. The clock indicates the time into the test the last update

occurred.

3. Press MAX/MIN/AVG to display the minimum value recorded and the time it was taken.

4. Press MAX/MIN/AVG to display the average of the last ten samples. The clock shows how

much time has elapsed since the test began.

5. Press MAX/MIN/AVG again to show the normal display. The maximum/minimum feature

continues to run, indicated by on the display.

6. Press MAX/MIN/AVG to cycle through the readings. To clear the maximum/minimum

feature, press and hold MAX/MIN/AVG until disappears.

TML-30

Meter Operation (cont’d)

Using the Relative Mode

This mode calculates the difference between two measurements of the primary thermocouple.

While taking a measurement, press REL to set the display to zero. The ∆icon appears on the

display. Take the second measurement. The value on the display is the difference between the

two measurements. Press again to exit this mode.

Changing the Thermocouple type

The TML-30 defaults to a K-type thermocouple each time it is turned on. To change to J-type,

with the meter turned off, press and hold REL / J while turning the meter on. “J”appears on

the display. The “K”, which normally appears in the upper left corner to indicate a K-type

thermocouple, does not appear.

Selecting the Primary Thermocouple

T1 is the default primary thermocouple and is displayed in the center of the display. T2 is the

default secondary thermocouple and is shown in the lower right. To make T2 primary, press

T1 / T2 / T1-T2 until the display shows “T2”. T1 becomes secondary. Press again to enter the

Difference mode (see below). The secondary display alternately displays “T1”and “T2”. Press

again to return T1 as primary.

Determining the Difference Between the Two Thermocouples

The T1-T2 mode calculates the difference between T1 and T2. Press T1 / T2 / T1-T2 until the display

shows “T1-T2”to enter the Difference mode. The difference appears in the primary display and is

constantly updated as the readings change. Press the button again to return to the normal setting.

Recording Measurements to Memory

Recordings are held in memory as “sets”so that they can be downloaded to a PC using the

Temperature software. Each time you start recording, a set is created in the database. You can

record one sample or record samples continuously. “FULL”on the display indicates that the

memory is full.

The sample rate (Interval) determines how often the reading is recorded to the database.

See Setting the Recording Interval.

1. To record one sample, press and release REC/ERASE. “REC”flashes once on the display.

2. To record continuously, press and hold REC/ERASE for three seconds. “REC”flashes every

second on the display.

3. To stop recording, press the button again.

Erasing the Memory

With the meter off, press and hold REC/ERASE while turning the meter on. “dEL”appears on

the display to indicate that the measurements have been deleted from the memory. The meter

then goes through its self-test.

▲

▲▲▲▲

Setup

For all settings, begin with the meter turned off. During setup, MAX/MIN/AVG (▲) is used to

increment the selected value. REL / J ( ) is used to move to the next value. Pressing and

holding the buttons increases the rate that the value changes.

Setting the Date and Time

1. Press and hold T1 / T2 / T1-T2 (SETUP).

2. Press and release ON/HOLD/OFF.

3. Release T1 / T2 / T1-T2 after the LCD shows “SEt”.

4. Press °C/°F(CLOCK). The year appears in the Primary display and the last two digits

flash.

5. Press ▲to change the year.

6. Press to advance to the next digits and press ▲to change the month.

7. Press to advance to the next digits and press ▲to change the date.

8. Press to advance to the next digits and press ▲to change the hour.

Time is set in the 24 hour mode.

9. Press to advance to the next digit and press ▲to change the minutes.

10. Press °C/°Fto save the settings.

Press ON/HOLD/OFF to exit without saving.

Setting the Recording Interval (Sample Rate)

1. Press and hold T1 / T2 / T1-T2 (SETUP).

2. Press and release ON/HOLD/OFF.

3. Release T1 / T2 / T1-T2 after the LCD shows “SEt”.

4. Press REC/ERASE (INTV).

“Int”is shown in the primary display and minutes and seconds

are displayed in the lower left.

5. Press ▲to set the minutes.

6. Press to advance to the next digits and press ▲to set the seconds.

7. Press REC/ERASE to save the settings.

Press ON/HOLD/OFF to exit without saving.

▲

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