Extech Instruments 42582 Manuel utilisateur

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.

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

Line

Feed

F1 F2 F3 F4

ON/OFF

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Model 42582 Version 6.0 Sept 2007

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

132

4956 87

F1 F2 F3 F4

ON / OFF

Line

Feed

Line

Feed

F1 F2 F3 F4

ON/OFF

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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.

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

F4 ENTER when done.

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

ENTER when done.

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

ENTER when done.

•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.

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

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

F2 EDIT key.

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

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.

•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-

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

•Press the F1 EXIT softkey to exit setup mode.

Emi. Rate: 0.95

LCD Cont. (1 - 5): 3

Prn Cont. (1 - 9): 5

Unit: C

Laser: Enable

Auto Off: 20 mins

Enable

EXIT EDIT NEXT

MAIN SETUP SCREEN 1

PRN

Set Clock:

HH:MM:SS

07-07-05 02:10:20

Set ID: Enable

ID: ACME CORP.

DD-MM-YY

EXIT PRNEDIT BACK

MAIN SETUP SCREEN 2

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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.

Contact Measurements using the Remote

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.

Ext: 35.7

IR: 35.7

07-14 03:49:34

Sample Printout

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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

EXIT NEXTEDIT

MANUAL DATALOG SCREEN 1

MEAS

02: 07-06 05:42:55

Ext: 82.0 F

Ir: 82.0 F

01: 07-06 05:42:50

Ext: 82.0 F

Ir: 82.0 F

EXIT BACKPRN

MANUAL DATALOG SCREEN 2

CLR

02: 07-06 05:42:55

Ext: 82.0 F

Ir: 82.0 F

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Model 42582 Version 6.0 Sept 2007

Viewing Stored Readings

1. From the WECLOME screen, press the F2 MEM softkey

2. Use the Arrow keys to scroll through the memory locations and view the stored data.

3. Press the F1 EXIT softkey to return to the WELCOME screen.

Printing Stored Data

1. Press F2 MEM from WELCOME screen to proceed to Manual Datalogger screen 1.

2. Press F4 NEXT to proceed to Manual Datalogger screen 2.

3. Use the Arrow keys to scroll to a memory location

4. Use the F3 PRN softkey to print a data record.

Erasing Data

1. Press F2 MEM from the WELCOME screen to go to Manual Datalogger screen 1.

2. Press F4 NEXT to proceed to Manual Datalogger screen 2.

3. Use the Arrow keys to scroll to a memory location.

4. Momentarily press the F2 CLR softkey to erase the selected memory location.

5. Press and hold F2 CLR to erase all readings in the Manual datalogger. Answer YES

when prompted to erase ALL recorded readings. Press NO to abort.

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

Customizing a Memory Location Header in the Manual Datalogging mode

The Header for each Memory location is the Date and Time stamp. To customize a

header, follow the steps below:

1. Press F2 MEM from the WELCOME screen.

2. Use the Arrow keys to select a memory location.

3. Press F3 EDIT to begin editing.

4. Use the Arrow keys to step forward and backward in the header line (characters will

not be erased)

5. Use the F3 BACK softkey to step backward (erasing characters while stepping).

6. Use the Alphanumeric keypad to compose a header. For example, press the ‘2’ key

and a window with the characters related to the ‘2’ key will appear (namely, 2abcABC

as shown in the diagram). Then use the ‘2’ key again to scroll through the character

list. When the desired character is highlighted the meter will automatically place that

character in the header.

7. The F2 CLR softkey is used to erase the header.

8. The F4 ENTER softkey is used to save the header.

01:

T: 82.0l F

ABORT ENTERCLR

HEADER EDITING

BACK

2abcABC

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Model 42582 Version 6.0 Sept 2007

Automatic Datalogging Mode

In the LOG Automatic Datalogging mode the Model 42580 can automatically measure and

store 12,000 readings at a programmed sample rate. Data saved in the Automatic

Datalogging mode can be recalled in the display, printed or transferred to a PC.

Press the F3 LOG softkey from the WELCOME display to access LOG screens 1 and 2:

Log Screen 1

Press F3 LOG from the WELCOME screen to

access LOG SCREEN 1.

F1 EXIT:Return to the WELCOME screen

F2 START:Begin automatic Datalogging at the

pre-set sampling interval. Datalogging will

begin at the date/ time programmed in the

SETUP mode.

F3 SET:Setup mode.

F4 NEXT:Advances to LOG SCREEN 2:

Log Screen 2

F1 LOG:Previous Page (previous 100 stored

readings)

F2 N-PG:Next Page (next 100 stored readings)

F3 PRN:Print page

F4 BACK:Return to Log Screen 1

Automatic Datalogging SETUP mode

From LOG SCREEN 1, press the F3 SET button to

enter the configuration screen:

BEGIN: Date when datalogging will automatically

begin

START: Time of day that datalogging will begin

END: Date when datalogging will end

SUSPEND: Time of day that datalogging will stop

each day

RATE: Sampling interval (time between recorded

readings)

EXPECT: Total memory capacity (12,000)

REMAIN: Memory locations remaining

The two SETUP screens are almost identical; only the softkeys are different (see

diagrams). The softkey functions for both SETUP

screens are as follows:

EXIT: Returns to WELCOME screen.

EDIT: Select display field for editing.

VIEW: Calls up the stored readings log.

NEXT: Switches to SETUP screen 2.

START: Activates the datalogger

CLR: Erases all readings stores in the automatic

datalogger memory.

PRN: Prints the datalogger memory record

BACK: Return to the SETUP screen 1.

00001:12-05 18:45:00

T: 82.0l F

EXIT NEXTSTART

LOG SCREEN 1

SET

00002:12-05 18:45:10

T: 82.0l F

00003:12-05 18:45:20

T: 82.0l F

00001:12-05 18:45:00

T: 82.0l F

P-PG BACKN-NP

LOG SCREEN 2

PRN

00002:12-05 18:45:10

T: 82.0l F

00003:12-05 18:45:20

T: 82.0l F

EXIT NEXTEDIT

AUTO DATALOGGER SETUP 1

VIEW

Begin: 01-01-05

Start: 00:00:01

End: 02-02-05

Suspend: 23:59:59

Rate:

Expect: 12000 Points

Remain: 11900 Points

15 secs

START BACKCLR

AUTO DATALOGGER SETUP 2

PRN

Begin: 01-01-05

Start: 00:00:01

End: 02-02-05

Suspend: 23:59:59

Rate:

Expect: 12000 Points

Remain: 11900 Points

15 secs

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Model 42582 Version 6.0 Sept 2007

To edit the fields in datalogger SETUP Screen1:

1. Use the up and down arrow keys to scroll through the parameters.

2. When a parameter is highlighted, use the F2 EDIT softkey to open it for editing.

3. Use the alphanumeric keypad to edit the parameter.

4. Press the F4 ENTER softkey to save changes. Press F1 ABORT to cancel

changes.

5. Press the F1 EXIT softkey to return to the SETUP screen.

Recording Data in the Automatic Datalogging Mode

1. After configuring the datalogger using the SETUP screen as described previously,

place the meter in position to take readings (a tripod mount is provided on the rear

of the instrument for convenience).

2. Press F3 LOG from the WELCOME screen and then press F2 START.

3. Recording will begin on the date and time programmed at the BEGIN and START

lines in the SETUP screen.

4. The Datalogger will record everyday from the START time to the SUSPEND time.

The last day that datalogging will take place is the date programmed in the END

line.

5. When the logging begins, the screen should indicate LOGGING...

6. If the screen does not indicate logging at the programmed start time, make sure the

START key is pressed. Also check the section below entitled “Automatic

Datalogging START and END date considerations” for troubleshooting.

7. To stop logging before the programmed SUSPEND time, press the F1 STOP

softkey.

8. While logging, view data records by pressing F4 VIEW.

9. To print data from the list, press the F1 STOP, the F4 NEXT and then press the F3

PRN softkey. Press the F2 YES softkey when the PRINT? display appears.

10. To clear (erase) the recorded data, access the LOG mode from the WELCOME

screen. Select SET, NEXT and then press and hold the CLR (clear) softkey until

the display prompts for confirmation. Select YES to delete all records, or NO to

abort the clearing process.

Automatic Datalogging START and END Date Considerations

1. If the START date is set to a date before the current date, the datalogger will start

the moment the START softkey is pressed.

2. The datalogger will not start logging if the END date is earlier than the current date.

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Model 42582 Version 6.0 Sept 2007

Field of View

The meter’s field of view is 8:1, meaning that if the meter is 8 inches from the target, the

diameter of the measurement spot (target) is 1 inch. Other distances and spot sizes are

shown below in the field of view diagram. Refer to the chart printed on the meter also for

more information.

IR Measurement Notes

1. The object under test should be larger than the spot (target) size (use the diagram

above and the diagram printed on the side of the meter to calculate the spot size).

2. If the surface of the object under test is covered with frost, oil, grime, etc., clean before

taking measurements.

3. If an object's surface is highly reflective apply masking tape or flat black paint before

measuring.

4. The meter may not measure accurately through transparent surfaces such as glass.

5. Steam, dust, smoke, etc. will affect measurements.

6. The meter compensates for deviations in ambient temperature. It can, however, take

up to 30 minutes for meter to adjust to extremely wide ambient temperature changes.

7. To find a hot spot, aim the meter outside the area of interest then scan across (in an up

and down motion) until the hot spot is located.

0.5”

32”

4”

16”

2”

8”

1”

4”

Diameter of Spot

Distance from Object

Laser pointer

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Model 42582 Version 6.0 Sept 2007

Specifications

General Specifications

Display Backlit Multi-function LCD

Over range indication "-------" appears on the LCD

Printer 38mm Printer

PC Interface RS-232C (TTL level)

Datalogger memory 12,000 readings

Low battery indication Battery symbol appears on the LCD

Power supply Four (4) 1.5V ‘AA” batteries or optional 9V (1000mA) adapter

Operating current 500mA (printing), 6mA (IR active), 2mA (IR standby)

Auto Power OFF Adjustable from 1 to 20 minutes

Operating Temperature 32 to 122oF (0 to 50oC)

Operating Humidity 90% Relative Humidity maximum

Dimensions/Weight 8.2 x 2.8 x 2.1” (208 x 70 x 53mm) / 9.2 oz. (260g) with battery

IR Measurement Specifications

IR Measurement ranges -40 to 932oF (-40 to 500oC)

Accuracy: -4 to 749ºF (-20 to 399oC); ±(2% of reading + 2 digit) or

±4ºF/2ºC (whichever is greater)

-40 to -3ºF (-40 to -19oC); ±6ºF/3ºC

750ºF to 932ºF (400 to 500oC); ±(4% of reading + 2 digit)

Resolution 0.1o for displays <212o, otherwise 1o

Repeatability ±1o

IR distance ratio 8:1

Response time 0.2 seconds

Emissivity Adjustable from 0.3 to 1.0

External Probe Measurement Specifications

Probe Measurement range -4 to 302oF (-20 to 150oC)

Accuracy: -4 to 32ºF (-20 to 0oC); ±2.2ºF (1.2ºC)

33 to 122ºF (1 to 50oC); ±1.4ºF (0.8ºC)

123 to 212ºF (51 to 100oC); ±2.8ºF (1.6ºC)

213 to 302ºF (101 to 150oC); ±5.4ºF (3ºC)

Resolution 0.1o for displays <212o, otherwise 1o

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