Extech Instruments 42582 User Manual

User's Guide

IR Thermometer
Printer / Datalogger

with External Contact Probe

Model 42582

Introduction

Congratulations on your purchase of the Extech 42580 IR Thermometer Printer-Datalogger.
This device measures temperature with the non-contact IR sensor and the external contact
probe. The built-in Datalogger feature stores up to 12,000 readings. The readings can be
displayed directly on the meter or can be for transferred to a PC. The Printer provides a hard
copy of stored readings. Careful use of this meter will provide years of reliable service.

F1

F2

F3

F4

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Safety

• Use caution when the laser pointer beam is on

• Do not point the beam toward anyone's eye or allow the

beam to strike the eye from a reflective surface

• Do not use the laser near explosive gases or in other
potentially explosive areas

Description

Meter Front Panel

1. Laser pointer beam

2. Non-contact temperature sensor

3. LCD Display

4. Function Softkeys

5. Keypad

6. External Contact Probe

7. Probe Handle

8. Paper compartment

9. Printer paper

Meter Side View

1. Printer

2. Keypad

3. LCD Display

4. AC Adapter

5. RS-232c TTL jack

6. External temperature probe input jack

7. Battery compartment

8. Tripod mount

9. IR sensor and laser pointer source
Meter Keypad

1. Function softkeys F1 – F4

2. LCD backlight key

3. Printer paper advance

4. Power button and measurement
button

5. UP-DOWN arrow keys

6. Alpha-numeric keypad

495

F1

8

9

132

6 87

F1 F2 F3 F4

6

5

F2

ON/OFF

F3

F4

L

ine

Feed

ON / OFF

4

1

2

3

4

6

5

7

1

2

Line
Feed

3

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Model 42582 Version 6.0 Sept 2007

Operation

Press the ON/OFF button to power the meter. The
WELCOME screen will appear along with four softkey
selections (F1 through F4):

Setup

Two setup screens provide access to the Emissivity, LCD
Contrast, Printer Contrast, Temperature Units, Laser
Pointer ON/OFF, Auto Power OFF, Clock, and user ID.

1. Press the F4 SET softkey from the WELCOME

screen to access the first setup screen. See below.

2. Press F4 NEXT to access the second setup screen from the first setup screen. Press

Back to return to setup screen 1.

Emi. Rate: 0.95
LCD Cont. (1 - 5): 3
Prn Cont. (1 - 9): 5
Unit: C

o

Laser: Enable
Auto Off: 20 mins

Set Clock:

DD-MM-YY

HH:MM:SS

07-07-05 02:10:20
Set ID: Enable
ID: ACME CORP.

Enable

EXIT EDIT NEXT

PRN

MAIN SETUP SCREEN 1

3. Press the ▲or▼ key to move the 1 cursor to the desired position.

4. The programmable parameters are as follows:

• Emi. Rate: Adjust the emissivity (0.0 to 1.0) using the numeric keypad. Press

• LCD Cont: Adjust the LCD contrast (1-5) using the numeric keypad. Press F4

• Prn Cont: Adjust the print contrast (1-9) using the numeric keypad. Press F4

• Unit: Select temperature units (°C or °F) using the F2 button.

• Laser: Enable/Disable the laser pointer using the F2 button

• Auto Power OFF: Adjust from 1 to 20 minutes using the numeric keypad.

• Date: Select date format MM: DD:YY, DD:MM:YY or YY:MM:DD using the

• Set Clock: Press F2 EDIT to begin editing the month, day, year, hour, minute,

• SET ID: Enable/Disable the ID feature using the F2 EDIT key.

• ID: Press F2 EDIT to begin entering a custom ID. Use the alpha-

• Press the F1 EXIT softkey to exit setup mode.

F4 ENTER when done.

ENTER when done.

ENTER when done.

Enable/Disable with the F2 EDIT key. Press F4 ENTER when done.

F2 EDIT key.

and second. Use the ENTER key to move from digit to digit. Use the
numeric keys to change the number. Press F4 ENTER when done.

numeric keys to create the ID. Press F4 ENTER when done.

EXIT

MAIN SETUP SCREEN 2

PRNEDIT BACK

3

Model 42582 Version 6.0 Sept 2007

IR non-contact Measurements

1. Turn the instrument ON.

2. Press the F1 MEAS softkey from the

WELCOME screen to enter the measurement
mode

3. Point the meter at the surface to be measured.

4. Press and hold the ON button to take a reading

while pointing toward the target.

5. Press F3 LASER during measurements to turn

the laser pointer ON or OFF. The icon
appears when the laser is on. Note that if the
Laser is disabled in the SETUP mode, it will not
light. Refer to the SETUP section to enable the
Laser function..

6. Release the ON key to hold the measurement

on the LCD when the measurement session is
finished.

7. Press F4 PRN to print the reading. Use the LINE FEED button

to advance the paper.

8. Press F1 EXIT to return to the WELCOME screen.

Ext: 35.7

IR: 35.7

07-14 03:49:34

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Contact Measurements using the Remote

Sample Printout

Temperature Probe

1. Plug the external probe into the probe jack on the side of the meter.

2. Turn the instrument ON.

3. Press the F1 MEAS softkey from the

WELCOME screen to enter the measurement
mode

4. Touch the probe to the surface under test.

5. Read the temperature on the LCD next to EXT
(external)

6. To use the probe to find an emissivity setting
for a particular surface, take an IR measurement and a probe measurement of the
same surface, noting the readings. Then adjust the emissivity so that both the IR and
the contact probe readings match. Now the emissivity is properly set for that particular
surface. IR readings of that surface will be of the highest accuracy possible with this
instrument.

7. Press F4 PRN to print the reading. Use the LINE FEED button to advance the paper.

8. Press F1 EXIT to return to the WELCOME screen.

Note: The CALI softkey is used to calibrate the external temperature probe to the meter. If

this feature is accidentally entered, press and hold the EXIT softkey to exit the mode. A
calibration procedure and probe calibration data is required to perform this procedure.

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Model 42582 Version 6.0 Sept 2007

Manual Datalogging Mode

This instrument has two datalogging modes, MEM Manual Datalogging (99 records
maximum) and LOG Automatic Datalogging (12,000 records maximum). Data saved in the
Manual Datalogging mode can be recalled in the display, printed or transferred to a pc.

Manual Datalogging basics

To take a reading and store it in memory:

1. Press the F2 MEM softkey from the WELCOME screen.

2. Use the arrow buttons to select a memory location (1 through 99).

3. Press and hold the ON key to take a measurement as previously described. Release
the ON key to end the test.

4. Press the F4 SAVE or the F1 ABORT key.

Manual Datalogging Display Screen 1

F1 EXIT: Press to return to the WELCOME screen
F2 MEAS Press to enter the measurement mode.
F3 EDIT: Press to begin customizing the header in the current memory location. Header

customization is covered in a dedicated section later in this manual.

F4 NEXT Go to Manual Datalogger Screen 2.

Manual Datalogging Display Screen 2

F1 EXIT: Press to return to the WELCOME screen
F2 CLR: Press for one second to erase the current memory location. Press and hold for

longer than one second to erase all records currently held in memory.

F3 PRN: Press to print one or more readings. The instrument will prompt the user for a

start and end memory point.

F3 BACK: Go to Manual Datalogger screen 1.

01: 07-06 05:42:50

Ext: 82.0 F
Ir: 82.0 F

02: 07-06 05:42:55

Ext: 82.0 F
Ir: 82.0 F

EXIT NEXTEDIT

MEAS

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MANUAL DATALOG SCREEN 1

01: 07-06 05:42:50

Ext: 82.0 F
Ir: 82.0 F

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02: 07-06 05:42:55

Ext: 82.0 F
Ir: 82.0 F

EXIT BACKPRN

CLR

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MANUAL DATALOG SCREEN 2

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Model 42582 Version 6.0 Sept 2007

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