User's Guide
IR Thermometer Printer / Datalogger
Model 42580
Datalogging/Printing IR Thermometer
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42580
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
FAX 781.665.0780 - TestEquipmentDepot.com
Introduction
Congratulations on your purchase of the Extech 42580 IR Thermometer PrinterDatalogger. This device measures temperature using a non-contact IR sensor. The
Datalogger feature stores up to 100 readings in each set (4 sets total) for a total of 400
readings. The Printer provides a hard copy of individual readings or entire data sets. PC
software permits downloading of data for further analysis. Careful use of this meter will
provide years of reliable service.
Specifications
Display Backlit Multi-function LCD
IR Measurement ranges -40 to 932
Accuracy: -4 to 932ºF (-20 to 500
o
F (-40 to 500oC)
o
C); ±2% of reading or ±4ºF/2ºC
(whichever is greater)
o
-40 to -4ºF (-40 to 20
Resolution 0.1
Repeatability ±1
o
for displays <100o, otherwise 1o
o
C); ±6ºF/3ºC
IR distance ratio 8:1
Response time 0.2 seconds
Emissivity Adjustable from 0.3 to 1.0
Datalogger memory 400 readings (0-99 readings in each of 4 sets)
Over range indication "-------" appears on the LCD
Printer 38mm Printer
PC Interface RS-232C (TTL level)
Low battery indication Battery symbol appears on the LCD
Power supply Four (4) 1.5V ‘AA” batteries or optional 6V (1000mA) adapter
Operating current 500mA (printing), 6mA (IR active), 2mA (IR standby)
Auto Power OFF After 10 seconds
Operating Temperature 32 to 122
o
F (0 to 50oC)
Operating Humidity 90% Relative Humidity max.
Dimensions/Weight 8.2 x 2.8 x 2.1” (208 x 70 x 53mm) / 9.2 oz. (260g) with battery
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Model 42580 Version 2.2 11/03
Meter Description
1. Laser pointer beam
2. Non-contact temperature sensor
3. LCD Display
4. Push-button keypad
5. Printer paper and paper compartment
6. RS-232c TTL output jack
7. AC Adapter jack
8. Battery compartment (rear)
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
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
FAX 781.665.0780 - TestEquipmentDepot.com
3
Model 42580 Version 2.2 11/03
Operation
Setup
The Setup Screen provides access to the LCD Contrast, Printer Contrast, Emissivity
setting, Temperature Units and setting of the date and time.
1. Press the button to access the setup screen.
2. Press the or key to move the 1 cursor to the desired position.
3. The programmable parameters are as follows:
• LCD Cont: Adjust the LCD contrast (0-5) using the numeric keypad.
• Prn Cont: Adjust the print contrast (0-9) using the numeric keypad.
• Emi. Rate: Adjust the emissivity (0.0 to 1.0); Set to 0.95 if not sure of emissivity
value for the surface under test.
• Unit: Select temperature units (°C or°F)
using the button.
• Date: Select date format MM:DD:YY,
DD:MM:YY, or YY:MM:DD using the
button.
• Set Clock: Set the current month, day,
year, hour, minute, and second. Use the
arrow keys to move from digit to digit.
Use the numeric buttons to change the
number.
4. Press to exit setup mode.
IR Measurements
1. Point the meter at the surface to be measured.
2. Press and Hold the button to measure
the temperature.
3. The red laser pointer identifies the spot being
measured. Aim the laser pointer at the center
of the surface to be measured. While pressing
the button, press the button to
enable or disable the pointer.
4. Release the button and the last
measured value will remain in the display for
approximately 8 seconds.
LCD Cont: 1
Prn Cont: 2
Emi. Rate: 0.95
Unit: F
Date: MM:DD:YY
Set Clock:
MM:DD:YY hh:mm:ss
SETUP Screen
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IR Measurement Display
Printing IR Measurements
1. Perform the IR Measurement procedure.
2. After the button has been released and before 8 seconds have passed, press
the button.
3. The printer will print the temperature, date and time.
4. Press the button to feed the paper.
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Model 42580 Version 2.2 11/03
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