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MIW-DXH-EN-001 - 02 / 10 / 2017

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SAFETY AND PRECAUTIONS

Read all the information, the datasheet, 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.

The 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. This 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 treat the product as if it is 
live. 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.

 

 

 

 

 

 

 

DXH

  

DUCT HUMIDITY 
SENSOR / SWITCH

Summary of Contents for DXH-F

Page 1: ...Mounting and operating instructions DXH DUCT HUMIDITY SENSOR SWITCH ...

Page 2: ...NTENDED AREA OF USE 4 TECHNICAL DATA 4 STANDARDS 4 OPERATIONAL DIAGRAMS 5 WIRING AND CONNECTIONS 5 MOUNTING INSTRUCTIONS IN STEPS 5 MODBUS REGISTER MAPS 8 VERIFICATION OF INSTALLATION INSTRUCTIONS 9 TRANSPORT AND STOCK KEEPING INFORMATION 10 WARRANTY INFORMATION AND RESTRICTIONS 10 MAINTENANCE 10 DXH DUCT HUMIDITY SENSOR SWITCH ...

Page 3: ... as possible avoid condensation All installations shall comply with local health and safety regulations and local electrical standards and approved codes This 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 treat the product as if it is live Always disconnect the power ...

Page 4: ...20 mA Relay output C O 230 VAC 2 A Power consumption no load max 55 mA full load max 75 mA Load resistance 0 10 VDC mode 500 Ω 0 20 mA mode 500 Ω Selectable sensor ranges by trimmer 20 90 rH 0 60 rH 0 80 rH 0 95 rH Free selectable sensor range via Modbus 0 95 rH Selectable switching point by trimmer or via Modbus Hysteresis fixed Standalone mode 5 rH selectable Modbus mode 1 3 5 7 10 rH Accuracy 3...

Page 5: ...act Connections Cable cross section max 1 5 mm2 Cable gland clamping range 5 10 mm MOUNTING INSTRUCTIONS IN STEPS Before you start mounting the DXH sensor switch read carefully Safety and Precautions Then proceed with the following mounting steps 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...

Page 6: ... 20 90 rH 5 4 3 2 1 0 60 rH 5 4 3 2 1 0 80 rH 5 4 3 2 1 0 95 rH 0 20 mA 0 10 VDC 5 4 3 2 1 Put and hold for 20 seconds 4 Check if your unit starts or terminates the network see Example 1 and Example 2 If it does put the NBT JP6 jumper onto the pins If it does not leave the jumper open See Fig 6 Network bus resistor jumper Example 1 Example 2 Fig 6 Network bus resistor jumper Slave 1 RX ТX NBT NBT ...

Page 7: ... inside the flexible flange Mind the airflow direction 5 3 Install the tube at the desired depth in the duct using the screw in the flexible flange 5 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 7 Fig 9 Fixing flange 2x Ø 5 60 ATTENTION Installation of the unit near high EMI emitting devices ...

Page 8: ...evel 500 50 0 C 2 Relative humidity level unsigned int Actual relative humidity level 1 000 100 0 rH 3 Dew point signed int Calculated dew point 200 20 0 C 4 10 Reserved returns 0 11 Analogue output value signed int Value of the analogue output 0 1 000 0 1 000 0 100 12 Relay status signed int Relay status When it is On the contact between COM1 and NO1 is closed 0 1 0 1 Off On 13 Relative humidity ...

Page 9: ...settable Active only if holding register 7 is set to 1 and register 11 is set to 5 0 Max 0 200 20 0 rH 13 Maximum custom relative humidity range signed int Maximum value of the custom relative humidity range Always settable Active only if holding register 7 is set to 1 and register 11 is set to 5 Min 1 000 1 000 1 000 100 0 rH 14 Setpoint signed int Selected setpoint for relay switching Always set...

Page 10: ...r the date of publication relieve the manufacturer of any responsibilities The 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 supp...

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