background image

4

Press SET to enter set up mode 

stepping through Emissivity set up, 

trigger lock and switching 

o

C/

o

F set up.

Press MODE button to toggle between 

MAX, MIN, DIF, and AVG options.

Press MODE to turn the Thermometer on 

again and displays the last measurement 

result.

Press 

*

 to turn on laser target function 

When Thermometer enters user set up 

mode use 

 to select a further option.

Press   to turn on the display 

backlight. When Thermometer enters 

user set up mode use 

 to select a 

further option.

Button operation.

OPERATION FUNCTION

Infrared thermometers measure the surface temperature of an opaque object. The

Thermometer’s optics sense infrared energy, which is collected and focused onto

a detector.  The Thermometer’s electronics then translate 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 cold spot, aim the Thermometer outside the target area. Then,

slowly scan across the area with an up and down motion until you locate the hot or

cold spot.

Distance and target spot size

As the distance (D) from the target being measured increases, the spot size (S)

 

of 

the area measured by the unit becomes larger. The spot size indicates 90%

encircled energy. The maximum D:S is obtained when the Thermometer is 600mm

 

(

23.62

in) from the target resulting in a spot size of 20mm (

0.78

in).

Make sure that the target is larger than the spot size. 

Содержание 72-820

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

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Отзывы: