EnOcean STM350U Temperature and Humidity Sensor with transmitter User Manual

USER MANUAL

ETHSU – EASYFIT TEMPERATURE AND HUMIDITY SENSOR

Patent protected:

WO98/36395, DE 100 25 561, DE 101 50 128,

WO 2004/051591, DE 103 01 678 A1, DE 10309334,

WO 04/109236, WO 05/096482, WO 02/095707,

US 6,747,573, US 7,019,241

Observe precautions! Electrostatic sensitive devices!

ETHSU Easyfit Temperature and Humidity Sensor

21.12.2017

USER MANUAL

ETHSU – EASYFIT TEMPERATURE AND HUMIDITY SENSOR

REVISION HISTORY

The following major modifications and improvements have been made to this document:

Version

Author

Reviewer

Date

Major Changes

1.0

MKA

22.12.2017

First release

Published by EnOcean GmbH, Kolpingring 18a, 82041 Oberhaching, Germany

www.enocean.com, info@enocean.com, phone +49 (89) 6734 6890

Other trademarks and trade names are those of their respective owners.

Important!

This information describes the type of component and shall not be considered as assured

characteristics. No responsibility is assumed for possible omissions or inaccuracies. Circuitry

and specifications are subject to change without notice. For the latest product specifica-

tions, refer to the EnOcean website: http://www.enocean.com.

As far as patents or other rights of third parties are concerned, liability is only assumed for

modules, not for the described applications, processes and circuits.

EnOcean does not assume responsibility for use of modules described and limits its liability

to the replacement of modules determined to be defective due to workmanship. Devices or

systems containing RF components must meet the essential requirements of the local legal

authorities.

The modules must not be used in any relation with equipment that supports, directly or

indirectly, human health or life or with applications that can result in danger for people,

animals or real value.

Components of the modules are considered and should be disposed of as hazardous waste.

Local government regulations are to be observed. Packing: Please use the recycling opera-

tors known to you.

USER MANUAL

ETHSU – EASYFIT TEMPERATURE AND HUMIDITY SENSOR

TABLE OF CONTENT

1 RELATED DOCUMENTS ................................................................................... 4

2 GENERAL DESCRIPTION ................................................................................. 5

2.1 Basic functionality ......................................................................................... 5

2.2 Technical Data .............................................................................................. 6

2.3 Environmental conditions ............................................................................... 6

2.4 Ordering Information ..................................................................................... 6

2.5 Physical dimensions ....................................................................................... 7

2.5.1 Mechanical Outline ..................................................................................... 7

3 FUNCTIONAL DESCRIPTION ............................................................................ 8

3.1 Simplified firmware flow chart ......................................................................... 8

3.2 Simplified device block diagram ...................................................................... 9

3.3 Radio telegram format ................................................................................... 9

3.3.1 Teach-in telegram ..................................................................................... 9

3.3.2 Transmit timing ......................................................................................... 9

4 Application Information ................................................................................ 10

4.1 Transmission range ..................................................................................... 10

5 Regulatory information ................................................................................. 11

5.1 FCC (United States) Certificate ...................................................................... 12

5.2 FCC (United States) Regulatory Statement ..................................................... 12

5.3 IC (Industry Canada) Certificate .................................................................... 13

5.4 IC (Industry Canada) Regulatory Statement ................................................... 13

USER MANUAL

ETHSU – EASYFIT TEMPERATURE AND HUMIDITY SENSOR

1 RELATED DOCUMENTS

This document describes operation of ETHSU modules with their built-in firmware.

We recommend following our application notes, in particular AN001: EnOcean Wireless Sys-

tems – RANGE PLANNING GUIDE, AN002: RANGE EXTENSION WITH ENOCEAN -

Concept design of extending range with EnOcean networks and AN010: Short-Range De-

vices, Indoor Radio Propagation.

USER MANUAL

ETHSU – EASYFIT TEMPERATURE AND HUMIDITY SENSOR

2 GENERAL DESCRIPTION

2.1 Basic functionality

EnOcean EasyFit ETHSU is a wireless and maintenance

free temperature and humidity sensor. It requires no

external components and provides on-board a calibrat-

ed temperature and humidity sensor.

Power supply is provided by a small pre-installed solar

cell or an external 3 V backup battery.

An energy storage element is installed in order to

bridge periods with no supply from the energy harvest-

er.

The module provides an internal cyclic wake up every

100s. After wake up, the internal microcontroller reads

the status of the temperature and humidity sensor. A

radio telegram will be transmitted in case of a signifi-

cant change of measured temperature or measure hu-

midity.

In case of no relevant input change, a redundant retransmission signal (heartbeat) is sent

randomly within 8 to 15 minutes to announce the current values.

In addition to the cyclic wake-up, a wake up can be triggered externally using the input for

the occupancy button or the internal LRN button.

Key product features

 Fully autonomous operation under sufficient lighting with pre-installed solar cell

 Factory calibrated on-board temperature and humidity sensor

 Integrated energy storage and charging circuit

 Integrated LRN button and TX indicator LED

USER MANUAL

ETHSU – EASYFIT TEMPERATURE AND HUMIDITY SENSOR

2.2 Technical Data

Antenna

Helix antenna

Frequency

902.875 MHz

Data rate/Modulation type

125 kbps / FSK

Radiated Output Power (typ.)

100 dBμV/m

On-board Power Supply

Pre-installed solar cell

Illumination 50-100000 lux

Auxiliary Power Supply

Option for backup battery (CR1225)

Operation time in darkness @ 25°C

typ. 4 days after full charge

Start-up time from empty energy store

typ. < 5 min @ 400 lux / 25 °C

incandescent or fluorescent light

Input parameters

Temperature and humidity sensor

LRN button

Temperature sensor performance

Measurement range: -20°C … +60 °C

Resolution: 0.1 K

Accuracy: ±0.5 K across entire range

Humidity sensor performance

Measurement range: 0 % r.h. … 100 % r.h.

Resolution: 0.4 % r.h.

Accuracy: ±4.5 % r.h. across entire range

±3.0 % r.h. between 20 … 80 % r.h.

EnOcean Equipment Profile

A5-04-03

2.3 Environmental conditions

Operating and Storage temperature Absolute Maximum: -20 °C … +60 °C

Recommended1: +10 °C…+30 °C

Shelf life (in absolute darkness) 36 months after delivery2

Operating and storage humidity Maximum: 0% … 93% r.h., non-condensing

Recommended: < 60% r.h.

2.4 Ordering Information

Type

Ordering Code

Frequency

ETHSU

S3051-D350

902.875MHz

1

Recommended for maximum life of energy storage capacitor

2

Deep discharge of the energy storage leads to degradation of performance. Therefore

products have to be taken into operation after 36 months.

The module shall not be placed on conductive materials, to prevent discharge of

the internal energy storages. Even materials such as conductive foam (ESD pro-

tection) may have negative impact.

USER MANUAL

ETHSU – EASYFIT TEMPERATURE AND HUMIDITY SENSOR

2.5 Physical dimensions

2.5.1 Mechanical Outline

Detailed drawings are available from EnOcean.

Product dimensions 87±1 x 21±1 x 14±1 mm

Product weight 25 g

USER MANUAL

ETHSU – EASYFIT TEMPERATURE AND HUMIDITY SENSOR

3 FUNCTIONAL DESCRIPTION

3.1 Simplified firmware flow chart

USER MANUAL

ETHSU – EASYFIT TEMPERATURE AND HUMIDITY SENSOR

3.2 Simplified device block diagram

3.3 Radio telegram format

ETHSU transmits telegram data according to EEP (EnOcean Equipment Profile) A5-04-03

which encodes a temperature range of Temperature -20 ... 60°C with 10 Bit and a Humidity

range of 0 ... 100 % r.h. with 8 Bit.

3.3.1 Teach-in telegram

If the user presses the LRN button then the module transmits a teach-in telegram.

With this special teach-in telegram it is possible to identify the manufacturer of a device

and the function and type of a device via the EEP or GP used.

By default EnOcean Manufacturer ID is set. Customers should configure the module to use

their own Manufacturer ID.

3.3.2 Transmit timing

The setup of the transmission timing allows avoiding possible collisions with data packages

of other EnOcean transmitters as well as disturbances from the environment.

With each default transmission cycle, 3 identical sub-telegrams are transmitted within

40ms. Transmission of a sub-telegram lasts approximately 1.2ms. The delay between the

three transmission bursts is affected at random.

USER MANUAL

ETHSU – EASYFIT TEMPERATURE AND HUMIDITY SENSOR

4 Application Information

4.1 Transmission range

The main factors that influence the system transmission range are type and location of the

antennas of the receiver and the transmitter, type of terrain and degree of obstruction of

the link path, sources of interference affecting the receiver, and “Dead” spots caused by

signal reflections from nearby conductive objects. Since the expected transmission range

strongly depends on this system conditions, range tests should categorically be performed

before notification of a particular range that will be attainable by a certain application.

The following figures for expected transmission range may be used as a rough guide only:

 Line-of-sight connections: Typically 30 m range in corridors, up to 100 m in halls

 Plasterboard walls / dry wood: Typically 30 m range, through max. 5 walls

 Ferroconcrete walls / ceilings: Typically 10 m range, through max. 1 ceiling

 Fire-safety walls, elevator shafts, staircases and supply areas should be considered as

screening.

The angle at which the transmitted signal hits the wall is very important. The effective wall

thickness – and with it the signal attenuation – varies according to this angle. Signals

should be transmitted as directly as possible through the wall. Wall niches should be avoid-

ed. Other factors restricting transmission range:

 Switch mounted on metal surfaces (up to 30% loss of transmission range)

 Hollow lightweight walls filled with insulating wool on metal foil

 False ceilings with panels of metal or carbon fiber

 Lead glass or glass with metal coating, steel furniture

The distance between EnOcean receivers and other transmitting devices such as comput-

ers, audio and video equipment that also emit high-frequency signals should be at least

0.5 m.

A summarized application note to determine the transmission range within buildings is

available as download from www.enocean.com.

USER MANUAL

ETHSU – EASYFIT TEMPERATURE AND HUMIDITY SENSOR

5 Regulatory information

ETHSU has been certified according to FCC (US) and ISED (CA) regulations.

Changes or modifications not expressly approved by EnOcean could void the user's authori-

ty to operate the equipment.

USER MANUAL

ETHSU – EASYFIT TEMPERATURE AND HUMIDITY SENSOR

5.1 FCC (United States) Certificate

5.2 FCC (United States) Regulatory Statement

This device complies with Part 15 of the FCC Rules. Operation is subject to the following

two conditions:

1. This device may not cause harmful interference, and

2. This device must accept any interference received, including interference that may

cause undesired operation.

To comply with FCC/IC RF exposure limits for general population / uncontrolled exposure,

the antenna(s) used for this transmitter must be installed to provide a separation distance

of at least 20 cm from all persons and must not be co-located or operating in conjunction

with any other antenna or transmitter

Warning

Changes or modifications not expressly approved by the party responsible for compliance

could void the user’s authority to operate the equipment.

Interference

This equipment has been tested and found to comply with the limits for a Class B digital

device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasona-

ble protection against harmful interference in a residential installation.

This equipment generates uses and can radiate radio frequency energy and, if not installed

and used in accordance with the instructions, may cause harmful interference to radio

communications. However, there is no guarantee that interference will not occur in a par-

ticular installation.

If this equipment does cause harmful interference to radio or television reception, which

can be determined by turning the equipment off and on, the user is encouraged to try to

correct the interference by one of the following measures:

 Reorient or relocate the receiving antenna.

 Increase the separation between the equipment and receiver.

 Connect the equipment into an outlet on a circuit different from that to which the

receiver is connected.

 Consult the dealer or an experienced radio/TV technician for help.

USER MANUAL

ETHSU – EASYFIT TEMPERATURE AND HUMIDITY SENSOR

5.3 IC (Industry Canada) Certificate

5.4 IC (Industry Canada) Regulatory Statement

5.4.1 English version

This radio transmitter has been approved by Industry Canada to operate with the antenna

types listed with the maximum permissible gain indicated. Antenna types not included in

this list, having a gain greater than the maximum gain indicated for that type, are strictly

prohibited for use with this device.

This device complies with Industry Canada license-exempt RSS standard(s). Operation is

subject to the following two conditions:

1. This device may not cause interference, and

2. This device must accept any interference, including interference that may cause un-

desired operation of the device.

This equipment has been tested and found to comply with the limits for a Class B digital

device, pursuant to ICES-003. These limits are designed to provide reasonable protection

against harmful interference in a residential installation.

This equipment generates uses and can radiate radio frequency energy and, if not installed

and used in accordance with the instructions, may cause harmful interference to radio

communications. However, there is no guarantee that interference will not occur in a par-

ticular installation.

If this equipment does cause harmful interference to radio or television reception, which

can be determined by turning the equipment off and on, the user is encouraged to try to

correct the interference by one of the following measures:

 Reorient or relocate the receiving antenna.

 Increase the separation between the equipment and receiver.

 Connect the equipment into an outlet on a circuit different from that to which the

receiver is connected.

 Consult the dealer or an experienced radio/TV technician for help

USER MANUAL

ETHSU – EASYFIT TEMPERATURE AND HUMIDITY SENSOR

5.4.2 French version

PRUDENCE: Changements ou modifications pourraient annuler le droit de l'utilisateur à uti-

liser l'équipement non autorisées.

Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut

fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour

l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélec-

trique à l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de

sorte que la puissance isotrope rayonnée équivalente (p.i.r.e.) ne dépasse pas l'intensité

nécessaire à l'établissement d'une communication satisfaisante.

Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils

radio exempts de licence. L’exploitation est autorisée aux deux conditions suivantes:

1. L’appareil ne doit pas produire de brouillage, et

2. L’utilisateur de l’appareil doit accepter tout brouillage radioélectrique subi, même si

le brouillage est susceptible d’en compromettre le fonctionnement.

Ces limites sont conçues pour fournir une protection raisonnable contre les interférences

nuisibles dans une installation résidentielle. Cet équipement génère, utilise et peut émettre

une énergie de radiofréquence et, s'il n'est pas installé et utilisé conformément a ux in-

structions, il peut causer des interférences nuisibles aux communications radio. Cependant,

il n'existe aucune garantie que des interférences no se produiront pas dans une installation

particulière.

Si cet équipement provoque des interférences nuisibles à la réception radio ou télévision, ce

qui peut être déterminé en mettant l'équipement hors et sous tension, l'utilisateur est en-

couragé à essayer de corriger l'interférence par une ou plusieurs des mesures suivantes:

 Réorienter ou déplacer l'antenne de réception.

 Augmentez la distance entre l'équipement et le récepteur.

 Connecter l'équipement à une sortie sur un circuit différent de celui sur lequel le ré-

cepteur est branché.

 Consulter le revendeur ou un technicien radio / télévision expérimenté pour de l'aide

EnOcean STM350U Temperature and Humidity Sensor with transmitter User Manual

EnOcean GmbH Temperature and Humidity Sensor with transmitter

User Manual

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