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Extech Instruments TM20 User Manual

Extech Instruments TM20
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5 TM2x‐en‐GB_V2.15/15
Operation
DisplayProtectiveFoil
The meter’s display is shipped with a protective foil covering. Please remove carefully before
use.
Poweringthemeter
Open the batterycompartment by loosening the twoscrews located on the back of the meter
(on either side of the magnet). Insert a new CR2032 3V lithium button battery and close the
cover.Ifa batteryisalready installed,removethe insulationstripso that thebatterycanmake
propercircuitcontact.
The instrument is now ready for use. Press the ON/OFF key once to power the meter. The
meter’sprevioussettingswillbepreserved.
All EU users are legally bound by the battery ordinance to return all used batteries to collection
pointsinyourcommunityorwhereverbatteries/accumulatorsaresold!Disposalinthehousehold
trashisprohibited!
Selecting
o
C/
o
Funitsofmeasure
Pressthe
o
C/
o
Fkeytoselectthedesiredtemperatureunitofmeasure.
MAX‐MINandHOLDFunction
Tofreeze(hold) thedisplayedreading, presstheMAX/MIN key.Thecurrentreading willbe
heldonthedisplayandtheHOLDdisplayiconwillbevisible.
PressMAX/MINagaintoviewthe Maximum readingcapturedsincethelastreset;the MAX
indicatorwillbevisiblealongwiththeMAXreading.
PressMAX‐MINagaintoviewtheMinimum(MIN)temperaturereading;theMINiconwillbe
visiblealongwiththelowe streadingcapturedsincethelastreset.
Toreset theMAXand MINvalues press andhold theMAX‐MIN buttonfor 3seconds while
theMAXorMINiconisvisible.
Toreturntonormaloperationpr
esstheMAX/MINkeyagain;theHOLD‐MIN‐MAXindicators
shouldnowbeoff.
SoundReflector(TM26only)
The TM26 includes a sound reflector on the rear of the unit. This device amplifies the audible
beepersoastobeheardfromgreaterdistances.
NSFCertified(TM26only)
TheTM26isNSFCertified,meetingtherequirementsforuseinthefoodserviceindustry.

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Extech Instruments TM20 Specifications

TM20

Measurement IconMeasurement
measurement range-40 to 70 °C (-40 to 158 °F)
resolution0.1 °C/°F
accuracy0.5 °C: 0 to 24 °C, 1.0 °C: -20 to -1 °C and 25 to 49 °C, 2.0 °C: -40 to -21 °C and 50 to 200 °C
Protection and Safety IconProtection and Safety
protection safety ratingIP 65
Power IconPower
power supplyCR2032 3V button battery
low battery indicationBattery symbol appears on the LCD
Physical Dimensions IconPhysical Dimensions
meter dimensions86(L) x 57(H) x 30(D) mm / 3.4(L) x 2.2(H) x 1.2(D)
cable length209 m (9.6 ft.)

TM25

Measurement IconMeasurement
measurement range-40 to 200 °C (-40 to 392 °F)
resolution0.1 °C/°F
accuracy0.9 °F: 32 to 75 °F, 1.8 °F: -4 to 31 °F and 76 to 120 °F, 3.6 °F: -40 to -5 °F and 121 to 392 °F
Protection and Safety IconProtection and Safety
protection safety ratingIP 65
Power IconPower
power supplyCR2032 3V button battery
low battery indicationBattery symbol appears on the LCD
Physical Dimensions IconPhysical Dimensions
meter dimensions86(L) x 57(H) x 30(D) mm / 3.4(L) x 2.2(H) x 1.2(D)
cable length1.5 m (5 ft.)

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