Supco EM20 User manual

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M20
Digital Anemometer
User Manual
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com

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Introduction
EM20DigitalAirFlowanemometer isdesignedto
measure Temperature and Air Flow, simultaneously.
It isnormallyused tomeasure the temperature and
air speedat ventilationoutlets.
Features
1.Display:thetop displayline showsthe velocity
and thebottomdisplayshows thetemperature.
2.Parameters:
Velocity m/s, km/h,fpm,mph, kts,Beaufort
Temperature °C,°F
3.Resolution:
Velocity: 0.1m/s，fpm；
Temperature:0.1,°F0.1°C
4.Range:
Velocity: 0.4~20m/s,80~4000fpm
Temperature:-10~50 ,14~122

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5.Accuracy:
Velocity:± (2%ofreading+0.3m/s)
±(2%ofreading +60fpm)
Temperature:±1±1.8
6.Samplerate:2time/sec
7.Operatingenvironment:
14℉to122℉(-10℃to50℃),0to80%RH
8.Storageenvironment:
-4℉to140℉(-20℃to60℃)，0to80%RH
Instrument Description
1.Sensorcover
2.Vanesensor
3.Temperatureand
Humiditysensor
4.LCDdisplay
5.Functionkey
Temperature and
Vane anemometer
Unit Func.
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4
5
1
ON/OFF
2

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LCD A(TypeA/Type B)
SymbolDesignations:
Number
of Order Symbol Functions
1
Indicatingitis
nowin the
data-holding
mode
2
Indicatingthe
display value
beingthe
maximum
value(MAX)

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3
Indicatingthe
display value
beingthe
minimum
value(MIN)
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Measure values
5
Humidityunit
6 Temperatureunit
7 Velocityunit
8
Indicationlow
power of
batteries.
Batteries should
be replaced.
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Indicationtothe
calibrationmode

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Operating instructions
Temperature/Vaneanemometer:
1.Pressthe ON/OFF key toturn thepower on.
2.Toguarantee correct readings: position
instrumentsothatair flowsthroughthevane
and makesurethevanesensorisuprightinto
thewind directionformeasurement.
3.Makesurethereadingstabilizesbefore
recordingthevalue.
Function Keys
Temperature/Vaneanemometer:
1. ON/OFF key
Power ON/OFF function:
Press thekeytoturnthepower ONand press
thekeyoncemore toturnthepower OFF.
2. Func. key
1) Press thekey toselect thestateofMAX、MIN、
HOLD.
The cycleof views shows as following figure:

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MeasuremodeHoldmode Max
mode
Minmode
lHold mode:Readingisheld.
lMaxmode:Maximumvaluessincethe
instrumentwas last switchedonorlastreset.
lMinmode: Minimum values sincethe
instrumentwas last switchedonorlastreset.
2) Back lightcontrol
Pressand hold the Func. keyformore than 1
second.Theback light will be turnedon,Press
and hold thekeyagain formorethan1second
and thelightwill be turned off.Thebacklight
turnsoff after 60seconds.
Func. key Func. key
Func.key Func. key

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3. Unit key
1) Unit and Auto power off set
Velocity unit:
Press Unit keytochangetheVelocityunit. (m/s,
km/s,fpm,mph, kts,Beaufortscale)
Temperatureunit
Pressand holdthe Unit keyfor morethan
1secondtochangetheTemperatureunit.
(,℉)
2) Autopower off
The meterwill power itselfoffafter20 minutesif
thereisnokeyoperation.
ToCancelautopower offfunction:Pressand
holdthe ON/OFF keyuntiltheLCD displays AP
ON.Press Unit keytoselect AP ON or AP OFF,
thenpress the Func. keytoconfirm the setting.
APON-----Autopower off isactive.
APOFF --- Autopower offisinactive.
. Maintenance
1. CL ANING INSTRUCTIONS
The meter maybewiped downwithawet

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spongeorclothusingamild,water based
detergent.
NOT:
Thisunitisnotdesignedfor complete
submersionorwashinginwater.
2. BATT RY RPLAC MNT
Usethefollowing procedure:
Whenthebatteryvoltagedropsbelowproper
operationrangethe symbolwill appearon
theLCD displayandthebatteryneedstobe
replaced.
∞Pressthebattery covertowardsthearrowhead to
openthebatterycover.
∞Replacethe batterywiththree newAAA(1.5V)
batteries.
∞Replacethebatterycover.

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WARRANTY
SealedUnit Parts Co., Inc. warrantsthat it will repairor
furnishwithoutchargeasimilar producttoreplaceany
productwhich,withinthespecified warrantytermafter
the dateofsalebytheWholesaler,is proved tothe
satisfactionofSealedUnit Parts Co.,Inc.,tohave
beendefectiveat thetime itwassold.Saidwarrantyis
ineffect onlywhensaiditemis usedinaccordancewith
the instructionsandrecommendationsofSealedUnit
PartsCo.,Inc.
This warrantyappliesonlytoproductswhichafter
shipmentfromthe factory,havenotbeenaltered,
changed,repaired,or treatedinanymanner
whatsoever.
This warrantytorepairor replaceistheonlywarranty
either expressed,impliedorstatutoryand is the only
warrantybeingissuedherein;SealedUnit PartsCo.,

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Inc.'sliabilityinconnectionwithits productsis
expresslylimitedtotherepairorreplacementof
defectiveparts.All otherdamagesandwarranties,
statutoryor otherwise,arebeingexpresslyexcluded.
NorepresentativeofSealedUnitParts Co.,Inc.has
authoritytochange this warrantyinanymanner
whatsoever.Noattempttorepairor promisetorepairor
improveanypartcoveredbythiswarrantybyany
representativeofthis companyshall be effectiveunless
signedbyaproperlyauthorizedofficerofSealedUnit
PartsCo.,Inc.
99 Washington Street
Melrose, MA 02176
Phone [phone]
Toll Free 1-800-517-8431
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