Sentera RSCOH-R Manuel de service

Mounting and operating instructions

RSCOH-R MULTIFUNCTIONAL

ROOM TRANSMITTER

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Table of contents

SAFETY AND PRECAUTIONS 3

PRODUCT DESCRIPTION 4

ARTICLE CODES 4

INTENDED AREA OF USE 4

TECHNICAL DATA 4

STANDARDS 4

OPERATIONAL DIAGRAMS 5

WIRING AND CONNECTIONS 6

MOUNTING & OPERATING INSTRUCTIONS IN STEPS 6

OPERATING INSTRUCTIONS 9

VERIFICATION OF INSTALLATION INSTRUCTIONS 10

TRANSPORT AND STORAGE 10

WARRANTY AND RESTRICTIONS 10

MAINTENANCE 10

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SAFETY AND PRECAUTIONS

Read all the information, the datasheet, Modbus map, mounting and operating

instructions and study the wiring and connection diagram before working with the

product. For personal and equipment safety, and for optimum product performance,

make sure you entirely understand the contents before installing, using, or maintaining

this product.

For safety and licensing (CE) reasons, unauthorised conversion and/ or modiﬁcations

of the product are inadmissible.

e product should not be exposed to abnormal conditions, such as extreme

temperatures, direct sunlight or vibrations. Long-term exposure to chemical

vapours in high concentration can aﬀect the product performance. Make sure the

work environment is as dry as possible; avoid condensation.

All installations shall comply with local health and safety regulations and local

electrical standards and approved codes. is product can only be installed by

an engineer or a technician who has expert knowledge of the product and safety

precautions.

Avoid contacts with energised electrical parts. Always disconnect the power

supply before connecting, servicing or repairing the product.

Always verify that you apply appropriate power supply to the product and use

appropriate wire size and characteristics. Make sure that all the screws and nuts

are well tightened and fuses (if any) are ﬁtted well.

Recycling of equipment and packaging should be taken into consideration and these

should be disposed of in accordance with local and national legislation/regulations.

In case there are any questions that are not answered, please contact your

technical support or consult a professional.

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PRODUCT DESCRIPTION

RSCOH-R are multifunctional room transmitters which measure temperature,

relative humidity, carbon monoxide and nitrogen dioxide levels. Based on the

temperature and relative humidity measurements, the dew-point temperature

is calculated. ey feature 24 VDC power supply and 3 analogue / modulating

outputs - one for temperature, one for relative humidity and one for CO /

NO2). All the parameters and measurements are accessible via Modbus RTU.

ARTICLE CODES

Code Supply Maximum power

consumption

Nominal power

consumption Imax

RSCOH-R 24 VDC 2,86 W 1,8 W 119 m A

INTENDED AREA OF USE

■Measurement of indoor temperature, relative humidity and CO / NO2

■Monitoring of indoor air quality

■Suitable for residential and commercial buildings

■For indoor use only

TECHNICAL DATA

■Analogue / modulating output type:

►0—10 VDC mode: min. load 50 kΩ (RL≥ 50 kΩ)

►0—20 mA: max. load 500 Ω (RL≤ 500 Ω)

►PWM (open-collector type): PWM Frequency: 1 kHz, min. load 50 kΩ (RL≥ 50 kΩ);

PWM voltage level 3,3 or 12 VDC

■Selectable temperature range: -30—70 °C

■Selectable relative humidity range: 0—100 %

■Selectable CO range: 0—1.000 ppm

■Replaceable CO / NO2sensor element

■3 LEDs with adjustable light intensity for status indication

■Accuracy: ±0,4 °C (0—50 °C); ±3 % rH (0—100 % rH)

■Enclosure:

►rear plate: plastic ABS, black (RAL 9004)

►front cover: ASA, ivory (RAL 9010)

■Protection standard: IP30 (according to EN 60529)

■Typical range of use:

►temperature: 0—50 °C

►rel. humidity: 0—95 % rH, (non-condensing)

►CO: 0—1.000 ppm

■Storage temperature: -10—60 °C

STANDARDS

■EMC directive 2014/30/EU:

►EN 60730-1:2011 Automatic electrical controls for household and similar use -

Part 1: General requirements

►EN 61000-6-1:2007 Electromagnetic compatibility (EMC) - Part 6-1: Generic

standards —Immunity for residential, commercial and light industrial

environments

►EN 61000-6-3:2007 Electromagnetic compatibility (EMC) - Part 6-3: Generic

standards —Emission standard for residential, commercial and light-industrial

environments Amendments A1:2011 and AC:2012 to EN 61000-6-3

►EN 61326-1:2013 Electrical equipment for measurement, control and laboratory

use - EMC requirements - Part 1: General requirements

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►EN 61326-2-3:2013 Electrical equipment for measurement, control and

laboratory use - EMC requirements - Part 2-3: Particular requirements —Test

conﬁguration, operational conditions and performance criteria for transducers

with integrated or remote signal conditioning

■Low Voltage Directive 2014/35/EU

►EN 60529:1991 Degrees of protection provided by enclosures (IP Code)

Amendment AC:1993 to EN 60529

►EN 60730-1:2011 Automatic electrical controls for household and similar use -

Part 1: General requirements

■WEEE 2012/19/ EC

■RoHs Directive 2011/65/EC

OPERATIONAL DIAGRAMS

100

Minimum

range

Minimum

alert

Maximum

alert

Analogue /

modulating

outputs [%]

T, [°C ]

Maximum

range

Out of

range

Within

range

Alert

range

Alert

range

Out of

range

* LED indicaons - T (default), rH or CO / NO2

Analogue / modulang

output 2 [%]

100

0Min range Max range 100 rH [%]

Analogue / modulang

output 1 [%]

100

0 0

Min range Max range 50 T [°C]

Analogue / modulang

output 3 [%]

100

0,05

Min range Max range 1.000

CO [ppm]

NO2[ppm]

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WIRING AND CONNECTIONS

Wiring diagram

RJ45 sockets (Power over Modbus)

Pin 1 24 VDC Supply voltage

Pin 2

Pin 3 AModbus RTU communication, signal A

Pin 4

Pin 5 /B Modbus RTU communication, signal /B

Pin 6

Pin 7 GND Ground, supply voltage

Pin 8

GND

24 VDC

8 mm

RJ45

Terminal Block 1

VIN Supply voltage 24 VDC

GND Supply voltage, ground

AModbus RTU communication, signal A

/B Modbus RTU communication, signal /B

Terminal Block 2

AO1 Analogue / modulating output 1 for temperature

measurement (0—10 VDC / 0—20 mA / PWM)

GND Ground AO1

AO2 Analogue / modulating output 2 for relative humidity

measurement (0—10 VDC / 0—20 mA / PWM)

GND Ground AO2

AO3 Analogue / modulating output 3 for CO / NO2measurement

(0—10 VDC / 0—20 mA / PWM)

GND Ground AO3

ATTENTION e unit needs to be supplied via the RJ45 connector or via the connection

terminals. Do not connect the device via the RJ45 connector and the terminal

block simultaneously!

ATTENTION is product is not suited for 3-wire connection. It has separate grounds for power

supply and analogue output. Connecting both grounds together might result in

incorrect measurements.

MOUNTING & OPERATING INSTRUCTIONS IN STEPS

Before you start mounting the unit, read carefully “Safety and Precautions”.

Choose a smooth surface for installation (a wall, panel and etc.).

ATTENTION When planning the installation, allow enough clearance for maintenance and

service. Mount the sensor in a well-ventilated area.

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Follow these steps:

1. Using a ﬂat screwdriver, remove the front white cover by releasing the snap-ﬁts

on its both sides (see Fig. 1 Snap-ﬁts release).

2. Insert the cables through the opening on the rear plate (see Fig. 2 Mounting

dimensions.)

3. Using suitable fastening materials (not supplied), position the room sensor at

least 1,5 m from the ﬂoor. When planning the installation, allow enough clearance

for maintenance and service. Mount the sensor in a well-ventilated area. Mind

the correct mounting position and unit dimensions. See Fig. 2 and Fig. 3.

Fig. 1 Snap-ﬁts release Fig. 2 Mounting dimension

Push here to

release

2x Ø 6

59,8

9,8

74,5

104,5

25,6

70,5

Fig. 3 Mounting position

Correct Incorrect

Position at min. 1,5 m

from the ﬂoor

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4. Do the wiring according to the wiring diagram (see Fig.4).

Fig. 4 Wiring and connections

Correct connections

24 VDC

GND

/B Analogue output 1 - T

Analogue output 2 - rH

Analogue output 3 -

CO / NO2

Analogue output 1 - T

Analogue output 2 - rH

Analogue output 3 -

CO / NO2

24 VDC

GND

Wrong input connection

5. Put back the cover snap it in.

6. Switch on the mains supply.

7. Customise the factory settings to the desired ones via the 3SModbus software

or Sensistant (if necessary). For the default factory setting refer to the product

Modbus register map.

For the complete Modbus register data, refer to the product Modbus Register

Map, which is a separate document attached to the article code on the website

and contains the registers list. Products with earlier ﬁrmware versions may not be

compatible with this list.

NOTE

Optional settings

To assure correct communication, the NBT needs to be activated in only two devices

on the Modbus RTU network. If necessary, enable the NBT resistor via 3SModbus or

Sensistant (Holding register 9).

Example 1 Example 2

ТX

NBT

Slave 2

Master

Slave n

Slave 1

Slave 2

Slave 1

ТX

NBT

Master

Slave n

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NOTE On a Modbus RTU network, two bus terminators (NBTs) need to be activated.

ATTENTION

tDo not expose to direct sunlight!

NOTE

e sensor is not designed, manufactured or intended for use or re-sale as control

or monitoring equipment in environments requiring life safety performance, in

which the failure of the sensor could lead directly to death, personal injury, or

severe physical or environmental damage.

OPERATING INSTRUCTIONS

e unit is supplied with electrical energy at voltages high enough to inﬂict personal

injury or threat to health.

ATTENTION

Calibration procedure:

Sensor calibration is not necessary. All sensor elements are calibrated and tested in

our factory.

In the unlikely event of CO / NO2sensor element failure, this component can be

replaced.

Bootloader

anks to the bootloader functionality, the unit ﬁrmware can be updated via Modbus

RTU communication. With 3SM boot Application (part of 3SM center software

suite), ‘boot mode’ is automatically activated and the ﬁrmware can be updated.

NOTE Make sure the power supply does not get interrupted during “bootload” procedure,

otherwise you risk losing unsaved data.

LED indications

1. When the green LED is on, the measured value (temperature, relative

humidity or CO / NO2) is between the minimum and maximum alert range

values (Fig. 5 - 1).

2. When the yellow LED is on, the measured value (temperature, relative

humidity or CO / NO2) is in the alert range (Fig. 5 - 2).

3. When the red LED is on, the measured value (temperature, relative humidity

or CO / NO2) is below the minimum measurement range value or above the

maximum value. Blinking red LED indicates loss of communication with a

sensor (Fig. 5 - 3).

Fig. 5 LED indications

NOTE By default, the LED indication refers to temperature measurements. is can be

changed to relative humidity or CO / NO2values via Modbus Holding Register 79

(see Table Holding registers).

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NOTE Green LED intensity can be adjusted between 0 and 100 % with step of 10 %

according to the value set in Holding register 80.

Ambient light sensor

e measured light intensity in lux is available in Input Register 41. Additionally,

an active and standby level can be deﬁned in Holding registers 35 and 36. Input

level or in between both levels:

■Ambient light level < standby level: Input Register 42 indicates “Standby”.

■Ambient light level > active level: Input Register 42 indicates “Active”.

■Standby level < Ambient light level < Active level: Input Register 42 indicates “Low

intensity”.

VERIFICATION OF INSTALLATION INSTRUCTIONS

After switching on the power supply one of the LEDs lights up according to the

status of the measured variable. If this is not the case, check the connections.

TRANSPORT AND STORAGE

Avoid shocks and extreme conditions; stock in original packing.

WARRANTY AND RESTRICTIONS

Two years from the delivery date against defects in manufacturing. Any modiﬁcations

or alterations to the product after the date of publication relieve the manufacturer

of any responsibilities. e manufacturer bears no responsibility for any misprints or

mistakes in this data.

MAINTENANCE

In normal conditions this product is maintenance-free. If soiled, clean with a dry or

damp cloth. In case of heavy pollution, clean with a non-aggressive product. In these

circumstances the unit should be disconnected from the supply. Pay attention that

no ﬂuids enter the unit. Only reconnect it to the supply when it is completelydry.

RSCOH-R MULTIFUNCTIONAL

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