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Instruction manual
Quicktemp 824-1
(without laser sighting)
Quicktemp 824-2
(with laser sighting)
Quicktemp measuring instruments are
hand-held battery-operated thermometers
using non-contact infrared technology on
surfaces.
Sensor
Display
On
button
Quicktemp 824-1
Quicktemp 824-2
Size of target
The size of the target depends on the
distance between instrument and target.
The distance-to-target ratio is 6:1. The
instrument shows the mean temperature
measured at the target.
45 mm
Just point the sensor at the desired target
and press the On button. The measure-
ment runs for as long as the On button is
kept pressed. After approx. 1 second a
reading is made which remains in the dis-
play for 6 seconds once the On button is
released. The instrument then switches its-
elf off automatically.
Temperature range
Operating
temperature
Resolution
Laser beam
Accuracy (± 1 digit)
or ±2 % of m.v.(1...+260°C/30...500 °F)
Danger!
Response time
Target size/
distance
Repeatability
Power supply
Wavelength:
Emissivity:
Weight:
Dimensions
Battery lifetime:
(continuous measurement)
Quicktemp 824-1: 80 h
Quicktemp 824-2: 23 h
Fig. 1
Warranty:
This warranty does not cover damage caused by
inexpert handling or use of force.
Emissivity is a characteristic of every target
surface and is the ability of that
surface to emit energy (heat).
Quicktemp is preset to an emittance value
of 0.95. This value applies to most organic
substances (wood, cloth, plastics and
water, food...).
Highly reflective materials with smooth
polished surfaces have emittance values
much lower than 0.95. When measuring
such materials, we recommend using flat
black paint or attaching Testo emission
adhesive tape (No. 0554.0051) to the tar-
get to soften the reflectiveness.
_ = _
D
6
S
1
The
when the battery is used up.
Open the back of the instrument, remove
the used battery and put in the new 9 V
battery (observe polarisation).
Fig. 2
Operation
Technical data
-18 to 260°C/0 to 500°F
0 to 50°C/32 to 122°F
0,5°C/1°F
±2°C/±3,5°F
The larger value always applies.
±3°C/+5 °F (remaining range)
Approx. 500 ms
(See size of target)
±2 °C/±3,5 °F
or ±2 % of m.v.
9 V battery
7 to 18 µm
Preset at E=0.95
227 g without battery
184 x 45 x 38 mm
(Alkali-manganese)
(Alkali-manganese)
Warranty
1 year
Emissivity
Changing the battery
symbol appears in the display
Application information
• To ensure accurate temperature
readings, it is important to prevent
contact or near contact of the sensing
lens in the front part of the instrument to
hot sources. A minimum distance of 2
cm should be adhered to.
• An adaption time of 30 minutes is
needed if the ambient temperature is
changed (e.g. from cold vehicle outside
to a warm room inside).
• If there is condensation on the front
lens, this may lead to incorrect
readings.
• Always ensure that only the surface
temperature is measured. In the case of
limit values, take additional measure-
ments using a contact thermometer.
6:1
• Ensure that the target is bigger than the
spot resulting from the distance bet-
ween instrument and target (Fig. 2).
Recommended: target size =
Laser sight option
Quicktemp 824-2:
The laser on the front of the housing is
activated by pressing the On button. The
laser produces a red spot on the target
surface which will then be measured.
(Observe size of target.)
Danger- Quicktemp 824-2
NICHT IN DEN STRAHL BLICKEN
Switching between °C/°F
Lens cleaning
Debris on the lens may cause obstruction
and reduce accuracy.
If this occurs, either wipe the lens with an
earbud (moistened with water only) or blow
off the loose particles with clean compres-
sed air.
EN 50 081-1; 1992 + EN 50 082-1; 1992
The instruments were tested within frequency range
27 to 500 MHz. Within the frequency range of
230 - 500 MHz false indications on the display may
2 x spot diameter
LASERSTRAHLUNG
LASER KLASSE 2
LASER LIGHT
AVOID DIRECT EYE EXPOSURE
LASER CLASS 2
The °C/°F switch is
located in the battery
compartment.
Thermometer complies with
occur.
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