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3

Display

The primary temperature display reports the current or last IR temperature read

until the 8-second hold time elapses.

The secondary temperature display reports a choice of maximum, minimum,

difference between maximum and minimum temperature or average value.

You can toggle through the maximum, minimum, difference and average IR

temperatures anytime the display is on.

The MAX, MIN, DIF and AV temperatures are constantly calculated and updated

when the trigger is pressed.

After the trigger is released, the MAX, MIN, DIF and AV temperatures are held for 8

seconds.

Laser on symbol

HOLDSCAN

Scan or hold

o

C / 

o

F

Celcuis / Fahrenheit

A

Primary temperature Display

B

Secondary temperature Display

C

Emissivity LO, MED, HI

D

Temperature values for the MAX, MIN, DIF, AVG

Low Battery symbol. Appears when the battery charge is <4.5V.

After connecting the USB cable, the Thermometer automatically selects USB power

supply and two levels white colour backlit display will be

on.

Note:

 The USB connection does not charge the internal battery. 

It is for external power only for when the Thermometer is in use 

over extended periods.

Summary of Contents for 72-820

Page 1: ...1 Model 72 820 and 72 823 Infrared Thermometer ...

Page 2: ...aused by large or abrupt ambient temperature changes allow 30 minutes for the Thermometer to stabilize before use Do not leave the Thermometer on or near objects of high temperature Replace the batteries as soon as the low battery indicator appears on the display Remove dead batteries from the Thermometer or if it is not going to be used for a long time Never mix old and new batteries together or ...

Page 3: ...the trigger is pressed After the trigger is released the MAX MIN DIF and AV temperatures are held for 8 seconds Laser on symbol HOLDSCAN Scan or hold o C o F Celcuis Fahrenheit A Primary temperature Display B Secondary temperature Display C Emissivity LO MED HI D Temperature values for the MAX MIN DIF AVG Low Battery symbol Appears when the battery charge is 4 5V After connecting the USB cable the...

Page 4: ...late the information into a displayed temperature reading which appears on the display The laser is used for aiming purposes only The Thermometer turns on when you press the trigger The Thermometer turns off when no activity is detected for 8 seconds To measure temperature aim the Thermometer at the target pull and hold the trigger Release the trigger to hold a temperature reading To find a hot or...

Page 5: ...urface To adjust values for emissivity see table below 1 Press SET to select emissivity set up icon E on the display will flash The Thermometer steps through emissivity set up trigger lock and switching o C o F 2 Press to increase the value by 0 01 or press and hold to access quick setting The maximum value is 1 00 3 Press to decrease the value by 0 01 or press and hold to access quick setting The...

Page 6: ... result automatically HOLD appears in the display until the trigger is pulled again Temperature units Press SET to enter centigrade or fahrenheit mode then select to set selection OPERATION EXAMPLES Testing Contactors Press SET to select emissivity Press to select relatively low emissivity for bright contacts or 0 7 mid level for darkened contacts Press MODE to select MAX Measure line and load sid...

Page 7: ...ion wall surface temperature Do not release the trigger Record this temperature as your baseline or benchmark for a perfectly insulated wall Face the wall to be scanned Stand 1 5m away to scan a 5cm spot on the wall Scan horizontal rows of wall from top to bottom or horizontal rows of ceiling from wall to wall Look for greatest deviations from baseline temperature to identify problems This complet...

Page 8: ...istance to Spot 72 820 12 1 Distance to Spot 72 823 20 1 Emissivity adjustment 0 10 1 00 Display resolution 0 1o C 0 1o F Laser Sighting Single point laser Power Class 2 Output 1mW wavelength 630 to 670mm Power Supply 6F22 9V Battery Power consumption over 30hrs alkaline or over 10hrs gp Weight 0 322kg INFORMATION ON WASTE DISPOSAL FOR CONSUMERS OF ELECTRICAL ELECTRONIC EQUIPMENT These symbols ind...

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