AEMC instruments CA846 Manuel utilisateur

THERMO-HYGROMETER

TERMO-HIGRÓMETRO

E N G L I S H User Manual

E S PA Ñ O L Manual de Instrucciones

CA846

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Statement of Compliance

Chauvin Arnoux®, Inc. d.b.a. AEMC®Instruments

certiﬁes that this instrument has been calibrated

using standards and instruments traceable to

international standards.

We guarantee that at the time of shipping your

instrument has met its published speciﬁcations.

An NIST traceable certiﬁcate may be

requested at the time of purchase, or obtained

by returning the instrument to our repair and

calibration facility, for a nominal charge.

The recommended calibration interval for this

instrument is 12 months and begins on the date of

receipt by the customer. For recalibration, please

use our calibration services. Refer to our repair

and calibration section at www.aemc.com.

Serial #: ________________________________

Catalog #: 2121.24

Model #: CA846

Please ﬁll in the appropriate date as indicated:

Date Received: _________________________________

Date Calibration Due: _______________________

Chauvin Arnoux®, Inc.

d.b.a AEMC®Instruments

www.aemc.com

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Thermo-Hygrometer Model CA846

Table of Contents

ENGLISH.................................................................................................1

ESPAÑOL..............................................................................................13

1. INTRODUCTION............................................................................... 2

1.1 International Electrical Symbols................................................2

1.2DenitionofMeasurementCategories .....................................3

1.3ReceivingYourShipment..........................................................3

1.4OrderingInformation.................................................................3

2. PRODUCT FEATURES ...................................................................... 4

2.1Description................................................................................4

2.2PushButtons ............................................................................5

2.2.1Center(Yellow)FunctionSwitch...................................5

2.2.2Back-Lightand°C/°FButton ...................................5

2.2.3MAXButton...................................................................5

2.2.4HOLDButton ................................................................5

3. SPECIFICATIONS............................................................................. 6

3.1EnvironmentalSpecications....................................................6

3.2MechanicalSpecications ........................................................7

3.3SafetySpecications ................................................................7

4. OPERATION .................................................................................... 8

4.1 Recommendations....................................................................8

4.2OperatingtheModelCA846 .....................................................8

5. MAINTENANCE ............................................................................... 9

5.1ReplacingtheBattery ...............................................................9

5.2 Cleaning....................................................................................9

RepairandCalibration...........................................................................10

Technical and Sales Assistance ............................................................10

Limited Warranty ...................................................................................11

WarrantyRepairs...................................................................................11

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Thermo-Hygrometer Model CA846

CHAPTER 1

INTRODUCTION

Warning

• Donotconnectto,ortouch,anyelectricalcircuitwiththe

Thermo-Hygrometer.

• Toavoidinjuryorrehazard,donotoperatethisproductinan

explosiveatmosphereorenvironment.

• Remove(unscrew)theprotectivemetaltubecoveringthe

sensorheadwhenusingtheThermo-Hygrometer.

• DonotimmersetheThermo-Hygrometersensorheadintoliq-

uids-thismaycausepermanentdamagetothesensors.

• Screwontheprotectivemetaltubecoveringthesensorhead

whennotusingtheThermo-Hygrometer.

1.1 International Electrical Symbols

This symbol signiﬁes that the instrument is protected by double or reinforced

insulation.

This symbol on the instrument indicates a WARNING and that the operator must refer

to the user manual for instructions before operating the instrument. In this manual,

the symbol preceding instructions indicates that if the instructions are not followed,

bodily injury, installation/sample and product damage may result.

Risk of electric shock. The voltage at the parts marked with this symbol may be

dangerous.

This symbol refers to a type A current sensor. This symbol signiﬁes that application

around and removal from HAZARDOUS LIVE conductors is permitted.

In conformity with WEEE 2002/96/EC

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Thermo-Hygrometer Model CA846

1.2 Deﬁnition of Measurement Categories

Cat. II: Formeasurementsperformedoncircuitsdirectlyconnectedto

theelectricaldistributionsystem.Examplesaremeasurements

onhouseholdappliancesorportabletools.

Cat. III:Formeasurementsperformedinthebuildinginstallationat

thedistributionlevelsuchasonhardwiredequipmentin xed

installationandcircuitbreakers.

Cat. IV: Formeasurementsperformedattheprimaryelectricalsupply

(<1000V)suchasonprimaryovercurrentprotectiondevices,

ripplecontrolunits,ormeters.

1.3 Receiving Your Shipment

Uponreceivingyourshipment,makesurethatthecontentsareconsis-

tentwiththepackinglist.Notifyyourdistributorofanymissingitems.If

theequipmentappearstobedamaged,leaclaimimmediatelywiththe

carrierandnotifyyourdistributoratonce,givingadetaileddescriptionof

anydamage.Savethedamagedpackingcontainertosubstantiateyour

claim.

1.4 Ordering Information

Thermo-Hygrometer Model CA846 ..................................Cat. #2121.24

Includes meter, shockproof holster, 9V battery and user manual.

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Thermo-Hygrometer Model CA846

CHAPTER 2

PRODUCT FEATURES

2.1 Description

TheThermo-HygrometerModelCA846isaportable,compactdigitalmeter

designedforsimplicityandone-handoperation. ThemeterusesanNTC

asthetemperaturesensorprovidingexcellentresponsetimetochanges

intemperature,goodrepeatabilityandaccuratereadings.

TheModelCA846alsoutilizesa thin-lmpolymer-capacitivetyperelative

humiditysensorashygrometersensor,offeringexcellentrecoveryfrom

100%moistureandfastresponsetimeanddurability.

1. Temperature/humiditysensor

withprotectivesensorcover

2. 3½digitdisplay

3. MAXbutton

4. °C/°Fselector&backlight

5. HOLDbutton

6. Power/mode selector

3 5

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Thermo-Hygrometer Model CA846

2.2 Push Buttons

2.2.1 Center (Yellow) Function Switch

TurnsONtheThermo-Hygrometerandselectsthe%RHor°C/°Fsetting.

SlidethebuttontoOFFafteruse.

2.2.2 Back-Light and °C/°F Button

• PressthebuttontoturntheBack-LightON.

• Pressthebuttonagainto turntheBack-LightOFF.

• Pressthebuttonfor2secondstochangethetemperaturescaleto

°Cor°F.Thetemperaturescale°Cor°Fisdisplayedinthelowerright

handcornerofthedisplay.

2.2.3 MAX Button

• Pressthe MAXbuttontoentertheMAXmode.The“MAX”annunciator

appearsintheupperrighthandcornerofthedisplay.

• Theselectedrange(%RHor°C/°F)recordsandupdatesthemaximum

absolutevalues.

• PresstheMAXbuttonagaintoexittheMAX-recordingmode(“MAX”

goesout).

• TheHOLDbuttonmaybeusedintheMAXmodeto“Freeze”(nolonger

updates)theMAXmeasurementonthedisplay.

2.2.4 HOLD Button

TheHoldbutton“freezes”thereadingonthedisplay.Pressthe“HOLD”

buttontotoggle(activate/release)HOLD.IntheHOLDmode,the“HOLD”

annunciatorisdisplayedintheupperpartoftheLCDdisplayandthelast

readingisdisplayeduntilreleased.

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Thermo-Hygrometer Model CA846

CHAPTER 3

SPECIFICATIONS

3.1 Environmental Speciﬁcations

Temperature Scale:Celsius(°C)orFahrenheit(°F)user-selectable

Temperature Sensor: NTC

Measurement Range:-4°to140°F,-20°to60°C

Resolution: 0.1°F/°C

Accuracy: -4° to 32°F ± 2°F (-20° to 0°C ± 1°C)

32° to 140°F ± 1°F (0° to 60°C ± 0.5°C)

Temperature Coefcient:0.1timestheapplicableaccuracyspecication

per°Cfrom0°to18°Cand28°to50°C(32°to64°Fand82°to122°F)

Humidity Sensor:Electroniccapacitancepolymerlmsensor.

(Thesensorisunaffectedby watercondensation,andisimmunetomost

reagentvapors)

Measurement Range: 0% to 100% RH

Resolution: 0.1% RH

Accuracy (@ 25°C): 10%-90% RH ± 5.0%

0%-10% RH; 90% to 100% RH ± 10.0%

Sensor Response Time for 90% of Range:60stypical

Sensor Stability:±2%RH,2yearstypical

Sensor Hysterisis (10% to 90% to 10% RH):±1%RHtypical

Sensor Temperature Dependence:

Negligiblefrom32°to140°F(0°to60°C)

Operating Temperature:

32° to 122°F (0°C to 50°C) at < 80% RH

Storage Temperature:

-4°to140°F(-20°to60°C),0to80%RHwithbatteryremoved

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Thermo-Hygrometer Model CA846

Accuracy:

Statedaccuracyat23°C±5°C,<90%RH

Altitude: 2000m max

3.2 Mechanical Speciﬁcations

Display:

3½digitliquidcrystaldisplay(LCD)withmaximumreadingof1999

Over-Range:“OL”isdisplayed

Low Battery Indication: The isdisplayedwhenthebatteryvoltage

dropsbelowtherequiredlevel

Sample Rate: 2.5timespersecond,nominal

Input Protection:

24VDCor24Vrmsmaximuminputvoltageonanyinput

Power Supply:

Standard9Vbattery(NEDA1604,IEC6F22006P,orequivalent)

Battery Life:

200hourstypicalwithcarbonzincbattery

Dimensions:

6.81 x 2.38 x 1.5" (173 x 60.5 x 38mm)

Weight:

Approx7oz(197g)includingbattery

3.3 Safety Speciﬁcations

EN61010-1(1995-A2),ProtectionClassIII

OvervoltageCategory(CATIII,24V),PollutionDegree2

Indoor Use

*All specications are subject to change without notice

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Thermo-Hygrometer Model CA846

CHAPTER 4

OPERATION

4.1 Recommendations

• Forreliablemeasurements,letthereadingsstabilize.Thehygrometer

andtemperaturesensormustreachequilibriumwiththemediummea-

sured.

• Avoidtemperaturemeasurementerrorsinducedbytooshortmea-

surementtime,sunshineduringthemeasurement,heating,coldouter

walls,airdraft(e.g.fans),radiatingsourcesincludinghandand/orbody

heat,etc.

• Avoidhumiditymeasurementerrorsinducedbysteam,watersplashes,

drippingwaterorcondensationonthesensor,etc.

• Avoidsensorcontaminationinducedbyparticlesintheairormeasure-

mentsinpowderlikesubstances.Contaminationmaybeavoidedby

measuringthroughalter(usersupplied).Theltermustbecleaned

orreplacedperiodically,dependinguponthedegreeofcontamination

atthemeasurementsite.

4.2 Operating the Model CA846

1. Unscrewtheprotectivemetaltubecoveringthesensor.

2. Setthepowerswitchtothedesired%RHor°C/°Frange.

3. Letthereading(s)stabilize(%RHtakesatleast60secondstoreach

90%).

4. Readthedisplay.

5. Afteruse,screwtheprotectivemetaltubebackontothesensor.

6. TurntheinstrumentOFFwhennished.

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