Mastech MS6540A User Manual

MS6540A

Infrared Thermometer

User Manual

MS6540A

INFRARED

D

2400

S

80

THERMOMETER

1200

D:S=30:1

600

40

20

Unit:mm

Range:-

32˚C~850˚C

SEL

MEM

RCL

CLEAR

CONTENTS

CONTENTS

1. Product Overview...............................1

2. Safety Precautions.............................1

3. Appearance.......................................4

4. LCD..................................................4

5. Operation Instructions........................5

5.1 Manual Meas urement.. ........... ......... ........5

5.2 Degree Celsius/

Fahrenheit Toggli ng ................. .. ..........5

5.3 View Ma x/Min/ Ave /

Diff Temperature.. .................... ......... ...5

5.4 Emiss ivity Set tings.. ....... ....... ....... ...........6

5.5 Temperature Li mit

Alarming Fun ction...... ......... ........... .....6

5.6 Save /Recal l /Delete A Record.... ......... .......7

6. Distance To Object

Size Ratio (D:S )...............................9

7. Emissivity..........................................10

8. Maintenance......................................11

8.1 Batte ry Replac ement:. ....... ....... ....... .........11

8.2 Lens Cleani ng....... ........... ......... ..............12

8.3 Housing Cle aning.... ........... ......... ........... .12

9. Technical S pecifications...... ...............12

10. Accessories.....................................13

1. Product Overview

This hand-held infrared temperature sensors (hereina fter
referred to as “temperature sensor”) can be used for
measuring temperatures in a non-contact way, whi ch
determines the surface temperature of a test object by
measuring the infrared energy radiated from the surface
of the object. These ar e high- perfo rmanc e and
high-quality instruments which employ micro computer s
for data acquisition and processing.
The instrument have such advantages as large distance
coeff icien t, broa d tempe ratur e measu ring ra nge, hi gh
precision, and fast response. Boasting multi functions
including emissivity adjusting, maximum temp. readin g,
minimum temp. reading, average temp. reading, temp.
diffe rence a nd uppe r/low er temp l imit se tting , over- limit
alarming, etc., the temperature sensors are nevertheless
of small size and light weight, easy to operate, and very
reliable. Th e devic es can be w idely u sed in th e indus tries
of petroleum, chemical engineering, railway, medica l
care, power, metallurgy, tex tile, p lasti cs, met alwor king,
energy-saving, etc., where rapid and non-contact
surface-temperature measurements are needed.

2. Safety Precautions

WARNING

• Please do not direct laser beam into the eye directly, or
indirectly through reflection.

• Please check the housing of the temperature sensor
before using. Never use a damaged sensor. Check for
any damage or any missing plastic/rubber part.

• The battery should be replaced immediately in case the
batte ry indictor ( ) is s hown on display.

• In case t he temperature sensor does not function well,
please stop using it. The prot ectin g devic e of the se nsor
may have been damaged. If it appears to have any
problem, please send the sensor for repairing.

• Never use a temperature sensor where there is
explosive gas, vapor or dust nearby.

• Please do not connect the attached probe to a
powered-on circuit.

• In order to avoid being burnt, please be noted that the
measured temperatures for an object with high
refle ctivity are lower than its actual temperature.

• In case t he temperature sensor is not operated in
accordance with the instructions as stated in this
manual, the protecting function provided for the device
might not function well.

Attention

To avoid damaging the tempera ture se nsor or t he
equip ment to be tested, please protect them from
the fol lowin g hazar ds or imp roper handling:

• Stati c charge

• EMF (electromagnetic field) generated by an arc

welder or induction heater, etc.

• Heat impact (Heat impact is caused by large or abrupt
change of the ambient temperature, in which case one
has to wait for 20 minutes to stabilize the sensor before
using).

• Please do not place the sensor on or close to a
high-temperature object.

01

02

The tem perature sensor conforms with the
follo wings tanda rds:

■ EN61326-1 EMC(Electromagnetic Compatibili ty)

■ EN61010-1

■ EN60825-1 Safety specifications

Symbol and Safety Label

The symbols and safety labels used on the temperature
sensor and in this manual are listed in Tabl e 1 and
Figure 1.

Symbol

High voltage hazard. Danger level is
higher than that of “CAUTION” label!

Danger

Caution: Laser

Conforms with requirements of EU
and EFTA

Table 1. Symbols

Symbol

3. Appearance

A. LCD B. L aser ke y
C. Mode selection key D. Backlight key
E. °C/° F toggle key F. Fu nctio n selec tion ke y
G. Save k ey H. Rec all Dat a key
I. Clear data key J. Trigg er
K. Aiming device L. Batt ery cover

4. LCD

03

04

1. Emissivity display. Emis sivit y is adju stabl e when EM S
symbo l is on display.

2. °C/° F symbo l (degree Celsius / Fahrenheit)

3. The fi rst tem perat ure dis play

4. Symbol of high-alarming and low alarming

5. Battery low symbol

6. Memory / saved data / saved-data retrieving indicator

8. The se cond te mpera ture di splay ( maxim um, min imum,
avera ge, and temperature differ ence)

9. Symbols for the maximum, the minimum, the average,
and tem perature differen ce.

11. Hold t he read ing

12. Symbol for “starting” the laser aiming device

13. Measuring mode (flashing symbol indicates man ual
measu ring, and static symbol indicates auto
measu ring)

5. Operation Instructions

5.1 Manual Measurement

To measure temperature, point the temperature sensor
right toward the object, and then pull the trigger to start it.
Please do pay attention to the optical resolution(D:S)
and the observation view. The l aser is u sed onl y for the
aiming purpose.

5.2 Degree Celsius/ Fahren heit Toggl ing

Gently touch the °C/°F key on the panel to conveniently
toggle between degree Celsius and degree Fah renhe it.

5.3 View Ma x/Min/ Ave /Diff Temp erature

Gently touch the MODE key on the panel to switch the
flashing symbol at the lower-left corner of the panel
cyclically in the shown order.

5.4 Emissivity Settings

5.4.1 Emissivity is a measure of the radiation energy of
the cor respo nding material. Most organic material
and pai nted su rfaces or oxidized surfaces have an
emiss ivity o f 0.95. T he pres et emis sivit y of the
tempe ratur e sensor is 0.95. The rea dings m ight
not be ac curat e when measuring shining metal
surfa ces. To cor rect th e readi ngs, yo u can use
opaqu e photo paper or black paint to cover the test
surfa ce (< 148 °C /300 °F). Wait un til the
tempe ratur e of the ph oto paper or paint is the
same as t hat of th e cover ed surface. Th en,
measu re the te mperature of the photo paper or the
surfa ce of the p aint.

5.4.2 Pull the trigger on the sensor and wait the sensor
to be swi tched t o the mea suring mode, and then
gentl y touch “ SEL” ke y on the sensor twice. Th e
emiss ivity s ymbol “EMS” will be shown on LCD,
toget her wit h the val ue of emissivity E=1.00.

5.4.3 Gently touch the “▲”key on the panel to increase
the emi ssivi ty valu e as shown on display; Press
the “▼” key t o decre ase it.

5.4.4 After t he abov e setup i s compl ete, pr ess “MO DE”
to conf irm the v alue of e missivity.

5.4.5 The effecti ve setu p range f or radi ation : “EMS” i s
betwe en 0.10 a nd 1.00.

5.5 Temper ature Limit Alarming Function

5.5.1 Pull the trigger on the sensor, and gently touch
“SEL” k ey on the l eft pan el consecutively for three
times , and the n “HAL” s ymbol and “1000” are
shown o n display, and th e senso r is swit ched to
the mod e for set ting th e upper limit alarming.
Gentl y touch “▲” or “▼” to adj ust the u pper
tempe ratur e limit alarming value.

0605

5.5.2 After t he valu e is set, g ently t ouch “M EM” key o n
the pan el to tur n on/off the ala rming m ode. Wh en
under “ alarm ing on” mode, “ ” symbol is shown
on disp lay.

5.5.3 Pull the trigger on the sensor, and gently touch
“SEL” k ey on the l eft pan el consecutively for four
times , and the n “LAL” symbol and “00” are shown
on disp lay, and t he sens or is swi tched t o the mod e
for set ting th e lower limit alarming. Gently touch
“▲”or “▼”to a djust t he lower temperature limit
alarm ing val ue.

5.5.4 After t he valu e is set, g ently t ouch “M EM” key o n
the pan el to tur n on/off the ala rming m ode. Wh en
under “ alarm ing on” mode, “ ” symbol is shown
on disp lay.

5.5.5 When the sensor detects that the surface
tempe ratur e of an object is higher or lower than
the pre set ala rming value, it will give off “d oo-do o”
alarm ing sou nd, in the mean time “HAL” or “LAL”
symbo l will fl ash on display.

Under the attached probe measuring mode, the
upper /lowe r limit alarming function is deactivated.

5.6 Save /Recall /Delete A Recor d

5.6.1 The sens or can sa ve data ( up to 100 d ata pos ition s).
It can al so save i nfrar ed radiation temperature,
tempe ratur e standard (°C or °F) and emissivity.

5.6.2 To sav e the rea dings o f an infr ared me asure ment,
you nee d to pull t he trigger. In the mean time,
gentl y touch “ MEM” ke y, and “ME M” (rec ordin g) is
shown a t the low er left corner of LCD. Th e Numbe r
for the r ecord ed position is shown at the side of
“MEM” (reco rding) symbol.

HIB

LOB

5.6.3 Repeat the above steps to record again. When a
recor d posit ion number of “99” is shown, pressing
“MEM” w ill not a ctiva te data recording.

5.6.4 To rec all the s aved da ta of an in frare d
measu remen t, you need to pull the trigger. Th en,
gentl y touch “ RCL” key, and “RC L”(re call) i s shown
at the lo wer lef t corne r of LCD; Gently touch “▲” or
“▼” to sele ct the po sitio n number of the recorded
data, a nd in the m ean time, the saved temperature
value s are sho wn on LCD.

5.6.5 “Record Clear” function allows you quickly clear all
data re cords s aved in the temperature sensor.
This fu nctio n is effecti ve only w hen the s ensor i s
under “ RCL”( recall) mode. No matter how many
data re cords a re saved in the sensor, you can use
this “c lear” f uncti on.
Atten tion: U se “Rec ord Clear” function only when
all dat a recor ds saved in the memory of the
tempe ratur e sensor are to be deleted.

5.6.6 To use “ Recor d Clear ” funct ion, yo u need to
relea se the tr igger under the “RCL”(recall) mode,
and the n press “ SEL” ke y for 3 seconds to switch
off the “ RCL”( recal l) mode . Thi s indic ates th at
data re cords h ave been cleared.

0807

6. Distance To Object Size Ratio (D:S )

The temperature sensor has an angle of view and a
range of view, as shown in the picture below.

Object

Make sure that the test object fully occupies the range
of view of the temperature sensor, i.e., let the sensor
“see” the test object only, wit hout “s eeing ” any oth er
object. The la rger th e objec t is, the l onger t he meas uring
distance must be; On the contrary, the s malle r the obj ect
is, the s horter the distance must be. Measuring distance
to size of the test object ratio (D:S ratio) is 30:1, as
shown in the graph below:
In order to make sure that the temperature sensor does
not receive infrared radiation from objects other than
the test object, it is advisable to carry out measurements
in a distance shorter than what is calculated according
to D:S.

Len s Cylin der

Opt ical Se nsor

7. Emissivity

Emissivity is a measure of the radiation energy of the
corresponding material. This te mpera ture se nsor al lows
you to adjust the emissivity of the sensor according to
the typ e of the test surface. Please refer to Tabl e 2.

Table 2. Surface Emissivity

Test

Metal
Aluminum
Oxidized
Alloy A3003
Oxidized
Roughened
Brass
Polished
Oxidized
Copper
Oxidized
Elec.
Haynes
Alloy
Inconel
Oxidized
Sandblasted
Electropolish

EMS

0.2-

0.3

0.1-

0.3

0.5

0.4-

0.6

0.3-

0.7-

0.3-

0.95

Test Surface

Iron
Oxidized
Rusted
Iron (Cast)
Oxidized
Unoxidized
Molten
Iron
Dull
Lead
Rough

Oxidized
Molybdenu
Oxidized
Nickel
Oxidized
Platinum
Black

EMS

0.5-

0.5-

0.6-

0.2

0.2-0.3

0.9

0.4

0.2-

0.2-

0.2-

0.9

1009

Table 2. Surface Emissivity (continued)

Test EMS

Steel
Cold-Rolle
Ground
Polished
Zinc
Oxidized

Non-Metal
Asbestos
Asphaltum

Basalt
Carbon
Non-oxidiz
Graphite
Carborund
Ceramic

0.7-

0.4-

0.1

0.1

0.95

0.95

0.7

0.8-

0.7-

0.9

0.95

Test Surface

Clay
Concrete
Cloth
Glass
Plate
Gravel
Gypsum
Ice
Limestone
Paper
(of any
Plastic
Opaque
Earth
Water
Wood(natur

EMS

0.95

0.95

0.95

0.85

0.95

0.8-0.9

0.98

0.98

0.95

0.95

0.9-

0.93

0.9-

8. Maintenance

8.1 Battery Replacement:

When the battery is exhausted, the battery indicator
is turned on, which warns you that it is time to replace
the battery. Ho ld the mi ddle pa rt of the b atter y lid wit h
your fingers, and pull the lid downward, and then
replace the 9V battery with a new one.

8.2 Lens Cleaning

Firstly, use cl ean com press ed air to b low off any sm all
particles on the lens surface, and then use a damp
cotto n swab to carefully clean the surface. You may use
a little amount of water to dampen the cotton swab.

8.3 Housing Cleaning

Use sponge or soft cloth dampened with soap and water
to clean the housing.

9. Technical specifications

♦ Tempera ture ra nge for i nfrar ed meas ureme nt:

Model

Accuracy:
>510 ºC: ±1.5% o f the rea ding
50 ~510 ºC: ±1.5% of the reading +1ºC
15 ~ 50 ºC: ±1.5% of t he reading + 2ºC

-32 ~15 ºC: ±3 ºC
repeat error: < ±0.5 % of the reading,or ± 0.5 ºC

Temper ature R ange

-32 to 850 ºC (-25 to 1562 ºF)

1211

♦ Opt ical Resolution (D:S) (30:1)
♦ Co-axial laser aiming mode
♦ Tempera ture Resolut ion: 0.1 ºC or 0.1 º F
♦ LCD with double temperature display and 4 bits
♦ MAX (highest), MIN(lowest), DIF(difference),
and AVG(a verage)tem perature dis play
♦ Emi ssivity adjustable (0.10 to 1.00), preset value: 0.95
♦ High-temp. and low-temp. alarm., preset value:
high=100 ºC low=00 ºC
♦ Data recording (it can record up to 100 group of data)
♦ Response time: 500 mSec
♦ Laser power: Less than 1 milli watt
♦ Opt ical Response: 8 μm to 14 μm
♦ Reading Hold function (HOLD)
♦ Battery low-voltage indicator ( )
♦ Working Voltage: 9V batt ery
♦ Ambient temperature: -10 ~ +50 ºC
♦ Ambient Humidity: 10% t~90% RH at 30 ºC
♦ Sto rage temperature: -20 to +50 ºC, without battery
♦ Dimensions: Length 140×56×190
♦ Weight: 500g

10. Accessories

Standard Accessories:
Instr uction Manual 1
Leather bag 1
9V battery (6F22) 1

13

HYS006678