Elvaco CMa20 Manuale utente

INTRODUCTION

The CMa20 is an M-Bus communicating temperature and humidity

sensor for outdoor use.

For a complete description of the product or for information in Swedish,

visit the Elvaco AB website, www.elvaco.com.

OVERVIEW

CMa20

Outdoor M-Bus temperature and humidity sensor

1. Service

connector

2. M-Bus in

3. M-Bus out

4. Sensor pipe

5. Wiring lead-

through

6. Wall mounting

MOUNTING

Mount the product in a weatherproof location to avoid that direct

sunlight or rain affects the sensors. The product should be mounted

straight vertically and horizontally with the sensor pipe (4) downwards.

Use the holes (6) when mounting on wall.

M-BUS 2-WIRE BUS

M-Bus is a multi-drop 2-wire bus with no polarity. Use a cable of area

0.25-1.5 mm2, e.g. a standard telephone cable (EKKX 2x2x0.5 mm).

Connect the incoming wiring to the screw connector (2) and use the

screw connector (3) for further M-Bus 2-wire bus connection.

IMPORTANT

• All connected M-Bus slave devices must have unique M-Bus

secondary or primary addresses depending on addressing mode.

• Measure voltage over M-Bus slave connection to verify M-Bus

master connection. Voltage should be between 21-42 VDC.

RESET TO FACTORY DEFAULT

Reset to factory default by issuing the M-Bus command “Application

reset”, see CMa20 Users Manual.

TROUBLESHOOTING

Product does not respond to M-Bus master commands

Please verify your M-Bus slave conﬁguration and connection:

• Voltage over M-Bus connection should be between 21-42 VDC.

• All M-Bus slaves connected to the M-Bus master must have

unique primary or secondary addresses depending on which

addressing mode is used.

• Verify M-Bus slave baud rate used by M-Bus master. M-Bus

master baud rate must be identical to the M-Bus slave baud rate.

Temperature value is inaccurate

The temperature sensor is very accurate, but incorrect positioning of

the product may result in unintended temperature variations. Please

take the following in consideration when mounting the product:

• Do not mount the product close to heat sources (front and rear).

• Do not mount the product in direct sunlight.

SAFETY

The warranty does not cover damage to the product caused by usage

in any other way than described in this manual. Elvaco AB can not be

liable for personal injury or property damage caused by usage in any

other way than described in this manual.

inadequacies. Elvaco AB takes no responsibility for damages, liabilities or other losses by using this product. No part of the contents of this

manual may be transmitted or reproduced in any form by any means without the written permission of Elvaco AB. Printed in Sweden.

CMa20 Quick manual A4 English

Document id: 1090027

Version: 4.0

Mechanics

Protection class IP65

Dimensions 110x100x52 mm

Weight 140 g

Connection M-Bus Screw terminal 1.5 mm²

Mounting Wall mounted

Electrical

Power supply 21-42 VDC through M-Bus connection,

independent of the wiring polarity

Power consumption 1.5 mA M-Bus 1T

Environmental

Operating temperature

range

-40 °C to +55 °C

Storage temperature range -40 °C to +85 °C

Sensor accuracy

Temperature 10 to 30 °C +/- 0.2 °C

Humidity 10 to 90 % RH +/- 2 % RH

M-Bus

M-Bus standard EN 13757

M-Bus baud rate 300, 2400 Bit/s

M-Bus commands SND_UD, SND_NKE, REQ_UD2

Addressing modes Secondary, primary

Approvals

EMC EN 61000-6-2, EN 61000-6-3

Factory defaults

M-Bus baud rate 2400 Bit/s

M-Bus primary address 0

M-Bus secondary address Serial number

Product Part number Description

CMa20 1050025 M-Bus communicating

temperature and humidity sensor

for outdoor use.

ORDERING INFORMATION

CONTACT INFORMATION

Elvaco AB Technical support:

Phone: +46 300 434300

E-mail: support @elvaco.com

Online: www.elvaco.com

TECHNICAL SPECIFICATIONS

Products:

CMeX12s

Products:

Thisdeclarationo

Product

CMeX10

CMeX11

CMeX10S

CMeX11S

CMeX12S

CMeX13S



Theob jec t(s )ofthedecl

LVDDirective

EMCDirectiv

RoHS2011/6

Andareinconformitywi

IEC61010‐1(

EN55022(Ra

EN61000‐4‐6

EN61000‐4‐3

EN61000‐4‐1

EN61000‐4‐4

EN61000‐4‐5

EN61000‐4‐2



Kungsbacka,Sweden,20

DavidVonasek,CEO

Thisdeclarationo

Product

CMa10

CMa11

CMa20



Theob jec t(s )ofthedecla

EMCDirectiv

RoHS2011/65

Andareinconformitywi

EN55022(Rad

EN61000‐4‐6

EN61000‐4‐3

EN61000‐4‐2



Kungsbacka,Sweden,201

DavidVonasek,CEO

Thisdeclarationo

Product

CMa10w

CMa11w

CMa12w

CMa20w



Theob jec t(s )ofthedecl

EMCDirectiv

RadioEquip

RoHS2011/6

Andareinconformitywi

EN55022(Ra

EN61000‐4‐6

EN61000‐4‐3

EN61000‐4‐1

EN61000‐4‐4

EN61000‐4‐5

EN61000‐4‐2

EN300220‐1



Kungsbacka,Sweden,20

DavidVonasek,CEO

Thisdeclarationo

Product

CMe3100



Theob jec t(s )ofthedecl

LVDDirective

EMCDirectiv

RoHS2011/6

Andareinconformitywi

IEC60950‐1

EN55022(Ra

EN61000‐4‐6

EN61000‐4‐3

EN61000‐4‐1

EN61000‐4‐4

EN61000‐4‐5

EN61000‐4‐2



Kungsbacka,Sweden,20

DavidVonasek

CEO

CMeX10,CM

CMeX13s

CMa10,CMa

CMa10w,C

CMe3100

EUDECLARATIONOF

conformityisissuedunderthe

acoAB,Teknikgatan18,S‐4343



YearofCE‐marking

2016

rationlistedaboveisinconformitywithth

2014/35/EU

2014/30/EU

/EU

hthefollowingharmonizationstandardso

d.3 )

iatedemission)

(ImmunitytoHF‐injection)

(ImmunitytoRF‐field)

1(Immunitytovoltagevariation)

(Immunitytoburst)

(Immunitytosurge)

(ImmunitytoESD)

6‐04‐16



EUDECLARATIONOF

conformityisissuedunderthes

acoAB,Teknikgatan18,S‐4343



YearofCE‐marking

2016

rationlistedaboveisinconformitywiththe

2014/30/EU

/EU

hthefollowingharmonizationstandardsor

iatedemission)

(ImmunitytoHF‐injection)

(ImmunitytoRF‐field)

(ImmunitytoESD)

6‐04‐16



EUDECLARATIONOF

conformityisissuedunderthe

acoAB,Teknikgatan18,S‐4343



YearofCE‐marking

2016

rationlistedaboveisinconformitywithth

2014/30/EU

entDirective2014/53/EU

/EU

hthefollowingharmonizationstandardso

iatedemission)

(ImmunitytoHF‐injection)

(ImmunitytoRF‐field)

1(Immunitytovoltagevariation)

(Immunitytoburst)

(Immunitytosurge)

(ImmunitytoESD)

(SRDLowpowerradioequipment)

6‐04‐16



EUDECLARATIONOF

conformityisissuedunderthe

acoAB,Teknikgatan18,S‐4343



YearofCE‐marking

2016

rationlistedaboveisinconformitywithth

2014/35/EU

2014/30/EU

/EU

hthefollowingharmonizationstandardso

iatedemission)

(ImmunitytoHF‐injection)

(ImmunitytoRF‐field)

1(Immunitytovoltagevariation)

(Immunitytoburst)

(Immunitytosurge)

(ImmunitytoESD)

6‐04‐16



eX11,CMeX1

11,CMa20

a11w,CMa1



ONFORMITY

oleresponsibilityofthemanufa

Kungsbacka,Sweden.

relevantCommunityharmonizationlegisla

othernormativedocuments:



ONFORMITY

oleresponsibilityofthemanufa

Kungsbacka,Sweden.

relevantCommunityharmonizationlegisla

othernormativedocuments:



ONFORMITY

oleresponsibilityofthemanufa

Kungsbacka,Sweden.

relevantCommunityharmonizationlegisla

othernormativedocuments:



ONFORMITY

oleresponsibilityofthemanufa

Kungsbacka,Sweden.

relevantCommunityharmonizationlegisla

othernormativedocuments:

0s,CMeX11s,



w,CMa20w



turer:

ion:

turer:

tion:

turer:

ion:

turer:

ion:



roducts:CM

EUDEC

Thisdeclarationofconformit

ElvacoAB,Te

ProductYearo

CMe30002016



Theobject(s)ofthedeclarationlistedab

LVDDirective2014/35/EU

EMCDirective2014/30/EU

RoHS2011/65/EU

Andareinconformitywiththefollowing

EN55022(Radiatedemission)

EN61000‐4‐6(ImmunitytoH

EN61000‐4‐3(ImmunitytoR

EN61000‐4‐11(Immunityto

EN61000‐4‐4(Immunitytob

EN61000‐4‐5(Immunitytos

EN61000‐4‐2(ImmunitytoE



Kungsbacka,Swed en,2016‐04‐16



DavidVonasek

CEO

EUDEC

Thisdeclarationofconformit

ElvacoAB,Te

ProductYearo

CMe21002016



Theobject(s)ofthedeclarationlistedab

LVDDirective2014/35/EU

EMCDirective2014/30/EU

RadioEquipmentDirectiv e20

RoHS2011/65/EU

Andareinconformitywiththefollowing

IEC61010‐1(ed.3)

EN55022(Radiatedemission)

EN61000‐4‐6(ImmunitytoH

EN61000‐4‐3(ImmunitytoR

EN61000‐4‐11(Immunityto

EN61000‐4‐4(Immunitytob

EN61000‐4‐5(Immunitytos

EN61000‐4‐2(ImmunitytoE

EN300220‐1(SRDLowpowe

EN300220‐2

EN3010511:v.9.0.2(Gemalto

)



Kungsbacka,Swed en,2016‐04‐16



David Vonasek, CEO

EUDEC

Thisdeclarationofconformit

ElvacoAB,Te

ProductYearo

CMe X402016



Theobject(s)ofthedeclarationlistedab

LVDDirective2014/35/EU

EMCDirective2014/30/EU

RoHS2011/65/EU

Andareinconformitywiththefollowing

IEC61010‐1(ed.3)

EN55022(Radiatedemission)

EN61000‐4‐6(ImmunitytoH

EN61000‐4‐3(ImmunitytoR

EN61000‐4‐4(Immunitytob

EN61000‐4‐5(Immunitytos

EN61000‐4‐2(ImmunitytoE



Kungsbacka,Swed en,2016‐04‐16



DavidVonasek,CEO



EUDEC

Thisdeclarationofconformit

ElvacoAB,Te

ProductYearo

CMe X202016



Theobject(s)ofthedeclarationlistedab

EMCDirective2014/30/EU

RoHS2011/65/EU

Andareinconformitywiththefollowing

EN55022(Radiatedemission)

EN61000‐4‐6(ImmunitytoH

EN61000‐4‐3(ImmunitytoR

EN61000‐4‐2(ImmunitytoE



Kungsbacka,Swed en,2016‐04‐16



DavidVonasek,CEO

3000

2100

X40

X20

ARATIONOFCONFO

isissuedunderthesoleresponsi

nikgatan18,S‐43437Kungsback



CE‐marking

veisinconformitywiththerelevantComm

harmonizationstandardsorothernormativ

‐injection)

‐field)

oltagevariation)

rst)

rge)

D)

ARATIONOFCONFO

isissuedunderthesoleresponsi

nikgatan18,S‐43437Kungsback



CE‐marking

veisinconformitywiththerelevantComm

14/53/EU

harmonizationstandardsorothernormativ



‐injection)

‐field)

oltagevariation)

rst)

rge)

D)

radioequipment)

)



ARATIONOFCONFO

isissuedunderthesoleresponsi

nikgatan18,S‐43437Kungsback



CE‐marking

veisinconformitywiththerelevantComm

harmonizationstandardsorothernormativ



‐injection)

‐field)

rst)

rge)

D)

ARATIONOFCONFO

isissuedunderthesoleresponsi

nikgatan18,S‐43437Kungsback



CE‐marking

veisinconformitywiththerelevantComm

harmonizationstandardsorothernormativ



‐injection)

‐field)

D)

MITY

bilityofthemanufacturer:

a,Sweden.

unityharmonizationlegislation:

documents:

MITY

bilityofthemanufacturer:

a,Sweden.

unityharmonizationlegislation:

documents:



MITY

bilityofthemanufacturer:

a,Sweden.

unityharmonizationlegislation:

documents:

MITY

bilityofthemanufacturer:

a,Sweden.

unityharmonizationlegislation:

documents:



Elvaco AB, Kabelgatan 2T, S-43437 Kungsbacka, Sweden

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