HOLDPEAK 981D
Non-contact infrared thermometer
Instruction manual
Warning
Do not point laser at eye or indirectly off reflective
surfaces.
1. When take measurement, point thermometer toward
the object to be measured and hold the yellow
trigger. The object under test should be large than
the spot size calculated by the field of view
diagram.
2. Distance ＆ spot size: As the distance from the
object increase, the spot size of measuring area
becomes large.
1、Introduction
Compact, rugged and easy to use. Just aim and push the
button, read current surface temperatures in less than a
second. Safely measure surface temperatures of hot,
hazardous or hard-to-reach objects without contact.
How it works
Infrared thermometer measures the surface temperature
of an object. The unit’s optics sense emitted, reflected,
and transmitted energy which is collect and focused onto
a detector. The unit’s electronics transmitted energy
which is display on the unit. For increased ease and
accuracy the laser pointer makes aiming even more
precise.
Cautions
Infrared thermometer should be protected for the
following:
--EMF(electro-magnetic fields) from arc welders,
induction heaters.
--Thermal shock(cause by large or abrupt ambient
temperature changes allow 1 hours for unit to stabilize
before use).
--Do not leave the unit on or near objects of high
temperature.
3. Field of view: Make sure the target is larger than the
unit’s spot size. The smaller the target the close
measure distance. When accuracy is critical, make
sure the target is at least twice as large as the spot
size.
4. Emissivity: Most organic materials and painted or
oxidized surfaces have an emissivity of 0.95.
Inaccurate readings will result from measuring
shiny or polished metal surfaces. To compensate,
cover the surface to be measured with masking tape
or flat black paint. Measure the tape or painted
surface when the tape or painted reach the same
temperature as the material underneath.
2、Quick start instruction
1. Press battery door clip, install battery correctly.
2. LCD display:
A Selection of the Temperature
B Low-voltage
C Measure prompt
D Measure result
E Set the temperature indicating section
F Fahrenheit symbol
G Temperature symbol
3. Locating a hot spot aim the thermometer outside the
0.5
ºC 3
ºC 5.5
ºC 1
ºF 5
ºF 10
ºF
display
threshold exceeded
available
threshold
T
hreshold not reached
Temperature
area of interest, then scan across with up and down
motions until you locate the hot spot.
4. Diagram description
(1) Press the measuring button （1） to switch the
applicance on. The display （5） lights up and a
brief signal tone is heard. Press the button °C/º
F/SET （3） for approx.3 seconds to switch the
applicance off.Two breif signal tones will be heard.
If the applicance is not currently in use,the back
light of the display （ 3 ） switches off after
approx.15 seconds.After approx 60 seconds the
applicance switches off automatically,two short
signal tones notify this.
(2) Button to the left（2）Button to the right（4）。On the
applicance you can now set at which temperature
difference (△T)the color display and the acoustic
signal should respond. Press ,while the reference
value is being shown in the display （5）,the button
▶（4） or the button ◀（2） to set the desired
temperature difference( △ T). Press ,while the
reference value is being shown in the display
（5）,the button ▶（4） or the button ◀（2） to set
the desired temperature difference(△T).
(3) ℃/
0
F button：press it for ℃, press again for 0F.
Press the measuring button （1） and point the laser
dot on the spot to be referenced.The temperature is
shown in the display. Now press,while holding the
measuring button 8,the button º C/ º F/SET5 to
accept the temperature values as a reference
value.The reference temperature temperature is
shown in the display 3 next to the indicator REF
(4) A temoerature deviation is the difference between a
predetermined reference value and a measured
temperature.The deviations are shown as figures and
by using colored indicator on the display .In
addition,they will also be pointed out by an acoustic
signal.
3、Note:
1) Do not measure in dusty,smoky or streamy
atomospheres,Do not measure through transparent
materials,such as glass or plastics..
2) In the event of extrema temperature fluctions allow
the applicance to adjust to the ambient climatic
condictions for about 30 minutes before measuring.
3) The target object must be graeter than the measuring
surface of the applicance.The smaller the target
objects is,the less the distance between applicance
and the target object must be。
4) Aim the applicance as perpendicularly as possible to
the surface being measured.
5) Do not use solvent to clean lens.
6) Do not submerge the unit in water.
4、specifications
range
Accuracy
Repeatability 1%of reading or 1℃
Response time 500msec, 95%response
Spectral response 8-14um
Emissivity 0.95
Ambient operating
range
Relative humidity 10-95% RH noncondensing
Storage temperature -20~60℃(-4~1400F) without battery
Weight/dimensions 155g;165×72×41mm
Power 9V battery ,6F22 or NEDA 1604
Battery life Laser models:12hrs
distance spot ratio 8:1
-50℃ to 550℃(-58 to 10220F)
±3% of rdg or ±3 ,℃ -50 to 0 (℃ ℃ -58 to 320F)
±2% of rdg or ±2 , ℃ 0 to 100 (32 to 212℃ ℃
±3% of rdg or ±3℃, ≥100℃(2120F)
0℃ to ~60℃(32 to 1400F)
0
F)
OFF
Lower temperature threshold=Reference temperature-△T.
Upper temperature threshold= Reference temperature+△T
(5) Scanning a temperatur deviation
Colour
Red Fast
Green
Blue Slow
Signal tone Result
Upper temperature
Not
Within the temperature
Lower temperature
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