RS Pro RS-833 Manuel D'instructions page 5

Heavy Duty InfraRed Thermometer / English
Adjustable from 0.10 to 1.0.
C/F
Pressing up/down button to change the temperature unit (ºC or ºF)
HAL (LOW) on/off. Press the up button or down button to turn on or off.
Press the Measurement Trigger to confirm the High(Low)alarm mode.Hal(LOW) adjustment.
The high(Low) alarm adjustable form -50 to 650ºC(-58ºF~ 1202ºF)
MAX MIN DIF AVG indicate the MAX MIN DIF AVG record that displays between the
pressing and releasing the "ON/OFF" button each time.
MAX MIN DIF AVG display
MAX= maximum .Maximum value of measurement.
MIN= minimum. Minimum value of measurement.
DIF= difference. Difference value of measurement.
AVG= average. Average value of measurement.
10-Measurement Operation
1. Hold the meter by its Handle Grip and point it toward the surface to be measured.
2. Pull and hold the Trigger to turn the meter on and begin testing. The display will light if
the battery is good. Replace the battery if the display does not light.
3. Release the Trigger and the HOLD display icon will appear on the LCD indicating that the
reading is being held. In HOLD status, press the UP button to turn on or off the laser. And
press the DOWN button to turn on or off the backlight.
4. The meter will automatically power down after approximately 10 seconds after the trigger
is released.
Note: Measurement considerations
Holding the meter by its handle, point the IR Sensor toward the object whose temperature
is to be measured. The meter automatically compensates for temperature deviations from
ambient temperature. Keep in mind that it will take up to 30 minutes to adjust to wide
ambient temperatures are to be measured followed by high temperature measurements,
some time (several minutes) is required after the low (and before the high) temperature
measurements are made.
This is a result of the cooling process, which must take place for the IR sensor.
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11-Battery Replacement
1. As battery power is not sufficient, LCD will display
" " replacement with 2*AAA new battery type is
required.
2. Open battery cover, then take out the battery from
instrument and replace with new battery and place
the battery cover back.
12-Notes:
• How it Works
Infrared thermometers measure the surface temperature of an object. The unit's optics sense
emitted, reflected, and transmitted energy, which is collected and focused onto a detector.
The unit's electronics translate the information into a temperature reading, which is display
on the unit. In units with a laser, the laser is used for aiming purposes only.
• Field of View
Make sure that the target is larger than the unit's spot size. The smaller the target, the closer
you should be to it. When accuracy is critical, make sure the target is at least twice as large
as the spot size.
• Distance & Spot Size
As the distance (D) from the object increases, the spot size (S) of the area measured by the
unit becomes larger. See: Fig: 1.
• Locating a hot Spot
To find a hot spot aim the thermometer outside the area of interest, then scan across with an
up and down motion until you locate hot spot.
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Heavy Duty InfraRed Thermometer / English
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