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Mounting and operating instructions

DSMFX-2R

MULTIFUNCTIONAL 

DUCT TRANSMITTER

Summary of Contents for DSMFX-2R

Page 1: ...Mounting and operating instructions DSMFX 2R MULTIFUNCTIONAL DUCT TRANSMITTER ...

Page 2: ...D AREA OF USE 4 TECHNICAL DATA 4 STANDARDS 4 OPERATIONAL DIAGRAMS 5 WIRING AND CONNECTIONS 5 MOUNTING OPERATING INSTRUCTIONS IN STEPS 6 OPERATING INSTRUCTIONS 9 MODBUS REGISTER MAPS 10 VERIFICATION OF INSTALLATION INSTRUCTIONS 11 TRANSPORT AND STORAGE 12 WARRANTY AND RESTRICTIONS 12 MAINTENANCE 12 DSMFX 2R MULTIFUNCTIONAL DUCT TRANSMITTER ...

Page 3: ...onment 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 disconnect the power supply before connecting s...

Page 4: ... PWM open collector type PWM Frequency 1 kHz min load 50 kΩ RL 50 kΩ PWM voltage level 3 3 VDC or 12 VDC Selectable temperature range 30 70 C Selectable relative humidity range 0 100 Selectable CO2 range 0 2 000 ppm Accuracy 0 4 C 30 70 C 3 rH 0 100 rH 30 ppm CO2 0 2 000 ppm CO2 depending on the selected parameter Removable CO2 NDIR sensor element Minimum airflow velocity required 1 m s Enclosure ...

Page 5: ...ative humidity measurement 0 10 VDC 0 20 mA PWM GND Ground AO Common ground AO3 Analogue modulating output 3 for CO2 measurement 0 10 VDC 0 20 mA PWM Analogue modulating output 3 for CO2 measurement 0 10 VDC 0 20 mA PWM GND Ground AO Common ground Connections Spring contact terminal blocks cable cross section 1 5 mm2 The F version of the product is not suited for 3 wire connection It has separate ...

Page 6: ... DSMFX 2R bear in mind that the unit itself must be installed onto the outer surface of the duct both via fixing the flexible flange or directly the unit enclosure while the probe must be inserted inside the duct see Fig 1 and Fig 2 below Fig 1 Mounting dimensions With flange Without flange 60 Ø 12 2x Ø 5 86 8 18 5 42 3 50 285 34 5 4x Ø 4 4 70 66 100 105 80 Fig 2 Mounting position Correct Incorrec...

Page 7: ...ht section of pipe or duct with no obstructions Avoid installation near filters cooling coils fans etc The sensor will achieve the optimal result when the measurement is taken at least 7 5 duct diameters downstream and at least 3 duct diameters upstream from any turns or flow obstructions ATTENTION Installation of the unit near high EMI emitting devices may lead to faulty measurements Use shielded...

Page 8: ... supply units provide higher nominal output voltage and activate the integrated fuse protection ATTENTION We advise you not to use G and F type articles together on the same network If G and F type articles are used together on the same network make sure you use separate power supplies for the two types Always connect different article types to separate AC transformers or use the same article vers...

Page 9: ...ration is not necessary In the unlikely event of CO2 sensor element failure this component can be replaced All sensor elements are calibrated and tested in our factory Bootloader Thanks to the bootloader functionality the sensor firmware can be updated via Modbus RTU communication To enter Boot mode put a jumper onto pins 3 and 4 of the P1 header and restart the power supply see Fig 5 Once Boot mo...

Page 10: ...ndicates that measured CO2 level is outside set alert values Set to 1 when the measured value is outside the CO2 values defined by holding registers 25 and 26 0 1 0 CO2 measurement OK 1 CO2 measurement too low high 24 CO2 range limit flag unsigned int Flag indicates that measured CO2 is outside set range limit values Set to 1 when the measured CO2 is outside limit range values set defined by holdi...

Page 11: ...e direct control over the temperature output 0 1 default 0 0 Disabled 1 Enabled 43 Output 1 overwrite value T unsigned int Overwrite value for output 1 Active only if Holding register 42 is set to 1 0 1 000 default 0 0 0 1 000 100 44 Internal voltage source selection Output 1 T unsigned int Selection of internal voltage source for PWM output 1 0 1 default 0 0 3 3 VDC 1 12 VDC 45 50 Reserved return...

Page 12: ...blication 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 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 th...

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