Sentera Controls DTMF Service-Handbuch

Mounting and operating instructions

DTMF MULTIFUNCTIONAL

DUCT SWITCH

www.sentera.eu

MIW-DTMF-EN-000 - 03 / 09 / 2015 2 - 8

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 5

MOUNTING & OPERATING INSTRUCTIONS IN STEPS 6

TRANSPORT AND STOCK KEEPING INFORMATION 8

WARRANTY INFORMATION AND RESTRICTIONS 8

MAINTENANCE 8

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MULTIFUNCTIONAL

DUCT SWITCH

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SAFETY AND PRECAUTIONS

Read all information, the datasheet, mounting instructions and wiring scheme

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

to the product are not permitted.

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

temperatures, direct sunlight or vibrations. Chemical vapours with high concentration

in combination with long exposure times can aﬀect the product performance. Make

sure the work environment is as dry as possible; check for condensation spots.

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

electrical codes. is product can only be installed by an engineer or a technician

who has an expert knowledge of the product and safety precautions.

Avoid contacts with energised electrical parts; always treat the product as if it

is life. Always disconnect the power source before connecting the power cables,

servicing or repairing the product.

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

with appropriate 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

disposed 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.

DTMF

MULTIFUNCTIONAL

DUCT SWITCH

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PRODUCT DESCRIPTION

e DTMF is a duct multifunctional switch, which measures temperature, relative

humidity and CO2concentration level. For each of them, there are 4 predeﬁned

ranges acting as measurement windows and 1 user-deﬁnable range.

ARTICLE CODES

Code Supply Connection

DTMFG 24 VAC / VDC ± 10 % 3 - wire

DTMFF 18—34 VDC 4 - wire

INTENDED AREA OF USE

■Monitoring and maintaining temperature, relative humidity and CO2levels in duct

ventilation systems

TECHNICAL DATA

■3 relay outputs: C/O (230 VAC / 2 A)

■Power consumption:

►no load: max. 80 mA

►full load: max. 140 mA

■Selectable temperature ranges: 0—30 °C/10—40 °C/20—50 °C/0—50 °C

■Selectable rel. humidity ranges: 20—90 % rH / 0—60 % rH/ 0—80 % rH / 0—100 % rH

■Selectable CO2ranges: 450—1850 ppm / 0—1.000 ppm/ 0—1.500 ppm / 0—2.000 ppm

■3 selectable switching points: by trimmers

■Fixed temperature hysteresis: 2 °C

■Fixed rel. humidity hysteresis: 5 % rH

■Fixed CO2hysteresis: 200 ppm

■Enclosure and tubing:

►ASA, grey (RAL9002)

►IP54 (according to EN 60529)

■Fixing ﬂange:

►PE, black (RAL9004)

►IP20 (according to EN 60529)

■Operating ambient conditions:

►temperature: 0—50 °C

►rel. humidity: < 100 % rH (non-condensing)

■Storage temperature: -40—60 °C

STANDARDS

■Low Voltage Directive 2006/95/EC

■EMC Directive 2004/108/EC: EN 61326

■WEEE Direc tive 2012/19/EU

■RoHs Directive 2011/65/EU

DTMF

MULTIFUNCTIONAL

DUCT SWITCH

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OPERATIONAL DIAGRAMS

Relay

output 1

rel on

050 T, [°C]

rel oﬀ

SP-hyst SP

Relay

output 2

rel on

100 rH, [%]

rel oﬀ

SP-hyst SP

Relay

output 3

rel on

2.000 CO2, [ppm]

rel oﬀ

SP-hyst SP

WIRING AND CONNECTIONS

Vin Positive DC voltage/AC ~

GND Ground/AC ~

NO1 Normally open contact

COM1 Common contact

NC1 Normally closed contact

NO2 Normally open contact

COM2 Common contact

NC2 Normally closed contact

NO3 Normally open contact

COM3 Common contact

NC3 Normally closed contact

Connections Cable cross section: max. 0,5 / 1,5 mm2

Cable gland clamping range: 5—10 mm

DTMF

MULTIFUNCTIONAL

DUCT SWITCH

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MOUNTING & OPERATING INSTRUCTIONS IN STEPS

Before you start mounting the DTMF duct switch read carefully “Safety and

Precautions”.

1. Open the cover and insert the connecting cables through the cable gland of

theunit.

2. Do the wiring according to the wiring diagram (see Fig. 1) using the legend

information from section “Wiring and connections”.

Fig. 1 Wiring and connections

Power supply

24 VAC / VDC ± 10%/18—34 VDC

Relay output 3

Normally closed

Common

Normally open

Relay output 2

Normally open

Normally closed

Common

Relay output 1

Normally closed

Common

Normally open

3. Adjust the settings:

3.1 To select a temperature range, use the Temp. jumper shown inFig.2 and

the enclosed information.

3.2 To select the rel. humidity range, use the Humid. jumper shown inFig. 2 and

the enclosed information.

3.3 To select the CO2range, use the CO2jumper shown in Fig. 2 and the

enclosed information.

Fig. 2 Sensor range selection jumpers

0—30 °C

20—90 % rH

450—1.850 ppm

10—40 °C

0—60 % rH

0—1.000 ppm

20—50 °C

0—80 % rH

0—1.500 ppm

0—50 °C

0—100 % rH

0—2.000 ppm

Temp.

Humid.

CO2

Temp.

Humid.

CO2

Temp.

Humid.

CO2

Temp.

Humid.

CO2

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MULTIFUNCTIONAL

DUCT SWITCH

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3.4 To select the temperature setpoint for relay 1 switching, use the Temp

trimmer (Fig. 3).

3.5 To select the rel. humidity setpoint for relay 2 switching, use the Humid.

trimmer. (Fig. 3).

3.6 To select the CO2setpoint for relay 3 switching, use the CO2 trimmer. (Fig. 3).

Fig. 3 Setpoint trimmers

4. Mount the unit outside a duct with the tube mounted inside the duct but ﬁxed

outside it.

4.1 Drill a tight-sealing hole according the correct tube section (Ø 13 mm).

4.2 Fix the ﬂexible ﬂange (Fig. 4) on the duct outer surface using the self-drilling

screws, delivered with the unit. en install the tube inside the ﬂexible

ﬂange. Mind the airﬂow direction.

4.3 Install the tube at the desired depth in the duct using the screw in the

ﬂexible ﬂange.

4.4 Install and connect the cables with a “drip loop”. You can also ﬁx the unit

outside the duct via the mounting holes and as per the drawing shown

inFig. 5.

Fig. 4 Fixing ﬂange Fig. 5 Mounting dimensions

2x Ø

4x Ø 4,

ATTENTION Installation of the unit near high EMI-emitting devices may lead to faulty

measurements. Use shielded wiring in areas with high EMI.

ATTENTION Keep 15 cm (5,9’’) minimal distance between the sensor lines and the 230 VAC

power lines.

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MULTIFUNCTIONAL

DUCT SWITCH

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ATTENTION Always use two separate transformers: one for the sensor and one for the

controller.

5. Close the enclosure and ﬁx the cover.

6. Switch on the power supply.

ATTENTION Do not exceed the maximum power supply rating! Measure before installation!

Unregulated 24 VAC supply units provide higher nominal output voltage and

activate the integrated fuse protection.

ATTENTION If a G-type article is using the same AC power supply source (transformer) as

F-type article, a SHORT CIRCUIT may result when the power supply and analogue

signal terminals are connected to the same common ground! In this case always

connect diﬀerent article types to separate AC transformers or use the same

article version.

TRANSPORT AND STOCK KEEPING INFORMATION

Avoid shocks and extreme conditions; stock in original packing.

WARRANTY INFORMATION 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

dampish 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.

DTMF

MULTIFUNCTIONAL

DUCT SWITCH

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