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Daqu — Manual

Revision History

The following table shows the revision history of this document.

Rev.

Date

Description

1.0

January 2019

Release

Kanardia

2019

Summary of Contents for Daqu

Page 1: ...Daqu EMS Box Installation Manual Kanardia d o o January 2019 Kanardia d o o...

Page 2: ......

Page 3: ...creativecommons org licenses by sa 3 0 In short the license gives you right to copy reproduce and modify this document if you cite Kanardia d o o as the author of the original work you distribute the...

Page 4: ...Daqu Manual Revision History The following table shows the revision history of this document Rev Date Description 1 0 January 2019 Release Kanardia 2019 2...

Page 5: ...iring in General 13 3 1 Connection Wires 13 3 2 Daqu Ground Pin GND 13 3 3 Resistive Sensors on A Channels 14 3 3 1 One Wire Sensors 14 3 3 2 Two Wire Sensors 15 3 4 Resistive Sensors on E Channels 15...

Page 6: ...4 4 1 Installation 29 4 4 2 Configuration 29 4 5 Coolant Water Temperature 30 4 5 1 Installation 30 4 5 2 Configuration 30 4 6 Oil Pressure 31 4 6 1 Installation 31 4 6 2 Variable Current 32 4 6 3 Va...

Page 7: ...3 Min Max Values 41 4 12 Engine RPM Tachometer 41 4 12 1 Z Channel 42 4 12 2 Y Channel 42 4 12 3 Rotor RPM 43 4 13 Fuel Flow 44 4 13 1 Installation 45 4 13 2 Configuration 46 4 13 3 Differential Fuel...

Page 8: ...cess these messages Daqu electronics is enclosed in thin anodized aluminum case Electronics is designed to sustain elevated ambient temperatures and with some care it can also be mounted in an engine...

Page 9: ...V input These channels are float ing they are not connected with GND internally They are typically used to connect passive resistive sensors and thermocouples Supported resistive sensors are various...

Page 10: ...l has a special signal nor malizing circuit Different engines have a very different signal levels For example Rotax has up to 400 V peak to peak and Jabiru down to 1 V peak to peak The circuit brings...

Page 11: ...ard Daqu Description Value Weight 170 g Size 125x80x20 mm LxWxH Operational voltage 7 32 V Current sensors not connected 60 mA at 12 V Typical current sensors connected 100 mA at 12 V Operating temper...

Page 12: ...d Daqu Front View 2 Installation This section reveals details about Daqu mechanical installation and main connectors It does not tell much about configuration and installation of sensors probes and tr...

Page 13: ...ase make sure that this water will not reach it If you intent to fly trough rain the best way is to enclose Daqu within some watertight compartment Daqu is not shipped with the mounting hardware Any a...

Page 14: ...soldering side On the soldering part small numbers 1 and 5 are visible RJ45 connector is shown from front Only four pins sometimes five are used on Binder connector while RJ45 connector uses all eigh...

Page 15: ...hat the wires are secured and they will not get loose due to vibrations 3 1 Connection Wires Tefzel or similar grade insulation is recommended for all wires The signal wires thickness shall be AWG 22...

Page 16: ...only with one wire The wire is connected to pin of A channel Although it seems that there is no second wire in fact it is The invisible ground wire is provided by the engine block This means that nega...

Page 17: ...ference Figure 6 gives an example where two such sensors are connected 3 4 Resistive Sensors on E Channels Resistive fuel level sensors that are submerged in fuel may have problems when connected to t...

Page 18: ...5 3 4 1 2 EGT 1 EGT 2 EGT 3 EGT 4 AUX3 AUX4 V OIL T WATER T DAQU V2 3 Manifold A13 Oil P VDO 10 bar 1 CHT CHT Resistive oil pressure sensor 2 Figure 5 Several one wire resistive sensors connection pri...

Page 19: ...negative terminal R E 1 2 E 2 1 Y Y Z ROTOR FFLOW GND 5 V 1 2 B 1 B 2 I1 I2 3 7 6 5 4 8 GND 12 V 10 9 12 11 1 RPM FL 1 FL 2 Figure 7 Two wire resistive sensor connection on E channel either wire A mu...

Page 20: ...ition care must be taken for connection joints Thermocouple wires follow some color coding Unfortunately there is no common standard for the wire colors US uses different color codes than EU etc Table...

Page 21: ...ermanently damage Daqu A few different standards appear within this voltage range 0 5 4 5 V output range is the most frequent one The sensor outputs 0 5 V when not loaded and 4 5 V when it is maximall...

Page 22: ...Some sen sors do not require GND connection and they are grounded via engine block instead Rotax oil pressure sensor is one such example A 4 20 mA C A A 4 14 GND 12 V 3 2 1 D D 15 5 V GND 1 2 FUEL P...

Page 23: ...me potentiometer can be also connected as a voltage divider A voltage is applied across the potentiometer and the varying part is connected to one of B D or E channels Supplying voltage must not excee...

Page 24: ...er of pulses required per one litre The pulse sensors are typically of two types NPN or PNP Attention must be paid to apply correct voltage for the sensor Figures show connection to a 12 V but some se...

Page 25: ...ines are given Relevant engine manual or sensor manual shall be used for details on sensor installation 4 1 EGT Exhaust Gas Temperature Almost all EGT probes are K type thermocouples so general inform...

Page 26: ...come loose during the flight due to vibrations and can come in contact with the propeller or engine parts Use safety wire on each probe to prevent this and to keep the probe in its place Any leak in...

Page 27: ...into consideration the straght rigid part of EGT which may interfere with cowling if not installed properly In the nut centre must be a hole trough exhaust pipe If there is no hole measure the probe...

Page 28: ...beled as CHTs but any A channel can be used to connect a thermocouple Polarization is very important Connect positive wire to pin and negative wire to pin of the same A channel See Figure 8 for proper...

Page 29: ...d for CHT measurements Most of them are NTC types e g VDO 150 and some of them are PTC e g PT 100 Form connection point of view there is no difference between NTC and PTC 4 3 1 Installation The instal...

Page 30: ...Report time 0 5 1 0 s Filter 2 0 s Table 5 VDO 150 sensor configuration for CHT Rotax 912 4 3 3 Other Sensor Types The same principles apply for other resistive temperature sensors types When they are...

Page 31: ...ered Be careful and respect the torque limitations from the engine manual It is normal that some thread remain visible once the limiting torque is reached Special sealant must be usually applied on th...

Page 32: ...ted from the engine This means that althogh the one wire resistive sensors may be used the second grounding wire from the sensor housing to the Daqu may be needed This effectively makes it a two wire...

Page 33: ...different versions and care must be taken to select the proper sensor Some of these sensors measure absolute pressure Absolute pressure sensors are NOT suitable Sensor shall measure differential press...

Page 34: ...not connected Signal output is currect between 4 and 20 mA Engine block 4 20 mA C A A 4 14 GND 12 V 3 2 1 D D 15 5 V GND 1 2 FUEL P POIL 8 7 6 5 10 9 BAT 1 11 12 V OIL T WATER T Oil P Rotax Figure 19...

Page 35: ...V output Sen sor is powered with 5V The sensor configuration is shown on Table 9 As this is a 10 bar sensor the max value is set to 10 bar Your sensor may have a different max value 4 6 4 Resistive O...

Page 36: ...ange When unloaded sensors gives 3 and under max load it gives 160 240 33 range This range is reversed Sensor with no load has 240 resistance and under maximal load it has 33 We recommend using active...

Page 37: ...1 8 27 NPT thread and some special sealant to prevent fuel leaks 4 8 Voltage Daqu can measure voltages from 0 to 30 V DC on the channel C The system voltage is usually measured on this channel 4 8 1 I...

Page 38: ...or a CT 60 sensor is required These sensors are produced by Kanardia Standard shunts are not supported CT 30 measures current between 30 and 30 A and CT 60 measures current between 60 and 60 A CT 30 i...

Page 39: ...CT 30 Figure 22 CT 30 sensor connection schematics 4 9 2 Configuration The table 12 shows possible channel settings Alternatively El current 2 can be also selected for the second current sensor Optio...

Page 40: ...ens the response Several resistance ranges can be selected from the sensor list Select the one which fits your sensor the most The two most frequently used are Res 160 Ohm and Res 400 Ohm Option Selec...

Page 41: ...L 1 FL Signal 0 5V 2 Figure 23 An example of capacitive fuel level probe connected to the 12 V power source Some probes require 5 V be careful Option Selection Setting Channel Any B D E recommended Fu...

Page 42: ...age Refer to the potentiometer datasheet for pin identification Connection schematics for both cases are given in section 3 7 starting on page 20 Here configurations are shown for both cases 4 11 1 Va...

Page 43: ...to the system Some displays e g Nesis Aetos show popup windows showing trim or flap position when system detects that a trim or flaps are moving In this case time of travel between both limiting value...

Page 44: ...conds and R denotes reduction ratio N and R are given by configuration and T is measured by Daqu Output RPM is then calculated as RPM 60 N T R 4 12 1 Z Channel Trigger coil and variable reluctance pic...

Page 45: ...install a resistor as well The resistor can be ordinary 1 4 Watt carbon resistor Let s assume a Lycoming engine with Hall sensor and two pulses per RPM In this case the configuration is shown in table...

Page 46: ...nt number of pulses Option Selection Setting Channel Any Y Function Rotor RPM Sensor Digital Pulse Report time 0 2 0 5 s Filter about 0 5 s Pulses 72 Table 19 An example for rotor RPM connected to Y c...

Page 47: ...n general Sensor shall not be installed close to hot parts like exhaust system Some sensors use NPT fittings tapered Always respect maximal torque allowed when tightening the fitting Never use Teflon...

Page 48: ...st be connected The first sensor is connected normally and measures fuel flow towards the engine The second sensor is connected as Fuel flow 2 and mea sures flow from the engine back into the tank Whe...

Page 49: ...using Kanardia protocol on a different CAN bus See Figure 25 ECU DAQU CAN CANaerospace CAN Kanardia Nesis Emsis Digi etc Rotor Tank Additional sensors Figure 25 Illustration of the connection principl...

Page 50: ...ormation will be limited or not shown when the lane is turned off Usage of single lane connection only is not recommended Special three pin Binder connector commes with Daqu must be fitted When connec...

Page 51: ...remedy available to Purchaser Kanardia will either 1 repair the hardware defect at no charge using new or refurbished replacement parts or 2 exchange the product with a product that is new or which h...

Page 52: ...atutory express or implied including without limitation warranties of merchantability fitness for a particular pur pose non infringement and any warranties against hidden or latent defects If Kanardia...

Page 53: ...t will be able to repair any product under this warranty or make a product exchange without risk to or loss of the programs or data Some jurisdictions do not allow for the limitation of liability for...

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