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Kanardia Daqu Installation Manual

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Daqu EMS Box
Installation Manual
Kanardia d.o.o.
January 2019
©
Kanardia d.o.o.

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  • Page 1 Daqu EMS Box Installation Manual Kanardia d.o.o. January 2019 © Kanardia d.o.o.
  • Page 3 In short, the license gives you right to copy, reproduce and modify this document if: ˆ you cite Kanardia d.o.o. as the author of the original work, ˆ you distribute the resulting work only under the same or similar license to this one.
  • Page 4 Daqu — Manual Revision History The following table shows the revision history of this document. Rev. Date Description January 2019 Release © Kanardia 2019...

  • Page 5: Table Of Contents

    3.1 Connection Wires ......13 3.2 Daqu Ground Pin (GND) ..... 13 3.3 Resistive Sensors on A Channels .
  • Page 6 CONTENTS Daqu — Manual 4 Examples 4.1 EGT – Exhaust Gas Temperature ....23 4.1.1 Installation ......23 4.1.2...
  • Page 7 Daqu — Manual CONTENTS 4.10.4 Tank Shape Calibration ....39 4.11 Position Sensors ......40 4.11.1 Variable Resistance .

  • Page 8: Introduction

    Daqu — Manual Introduction First of all, we would like to thank you for purchasing our product. Daqu is data acquisition unit designed for monitoring engine parameters. Daqu reads various engine sensors, processes the readings and transmits them to the CAN bus, where other units can make use of these readings.

  • Page 9: Channels

    D-SUB nine pin connectors – one for ECU and the other for CAN network. Optionaly, standard Daqu can be also modified to connect to engine ECU, which effectively makes standard Daqu to act like a miniDaqu with mich more input channels. Channels Daqu has digital type and analog type channels where each type has several versions.

  • Page 10: Digital Channels

    The digital channels are used to measure time between pulses. Typical sensors connected to digital channels are engine RPM, rotor RPM and fuel flow. There are two types of digital channels used in Daqu. Z – is used to measure engine RPM. This channel has a special signal nor- malizing circuit.
  • Page 11 Daqu — Manual 1.3 Technical Specifications Daqu has two connectors on opposite sides. One is used to connect mani- fold pressure hose and the other is used to connect CAN bus cable. Both connectors require some additional clearence. Four removable connectors on top are used to connect sensors. Some minimal wire clearance is required, too.

  • Page 12: Installation

    A separate section with general principles starts on page 13 and practical examples section starts on page 23. General Rules Daqu shall be installed close to the engine in order to keep the sensor cables short. This can save significant weight on cables. ©...

  • Page 13: Intake Manifold Pressure

    Daqu is not shipped with the mounting hardware. Any appropriate removable fittings may be used. Do not rivet it in place. Intake Manifold Pressure Daqu has a built in MEMS pressure sensor that is used to measure the intake manifold pressure. Use a 5 mm inner diameter tube to connect the manifold pressure engine source with the Daqu manifold connector.

  • Page 14: Connectors And Cables

    Power and CAN bus connector details are presented in this section. Sensor connectors are described in a separate chapter. 2.3.1 CAN Bus Cable Standard Daqu has a five pin Binder connector, which connects Daqu to the CAN bus system. Figure 3 illustrates the pins on the cable side. high +12V...

  • Page 15: Wiring In General

    The schematics presented in this section shall be considered as general wiring guideline rather than a recipe. There are also other sensors that Daqu can make use of and are not described here.

  • Page 16: Resistive Sensors On A Channels

    Figure 4 illustrates such situation for two resistive sensors. A thick ground wire (use AWG 17 or less) must be routed directly from the engine block close to Daqu, where it is split and connected to negative terminals of one wire resistive sensors.

  • Page 17: Two Wire Sensors

    As A channels are isolated too, they are floating by default. This means that negative terminal requires some reference. Typically, any Daqu GND pin can be used for the reference. Figure 6 gives an example where two such sensors are connected.

  • Page 18: Thermocouples

    A channels. Thermocouples differ in type. Thermocouple types are designated with let- ters. Daqu supports thermocouple types J and K. Thermocouple probes also differ by electrical isolation principle. ˆ An isolated thermocouple sensor has its tip electrically isolated from ©...
  • Page 19 Daqu — Manual 3.5 Thermocouples FUEL +5 V WATER +12 V Figure 6: Two wire resistive sensor principle. The return line is isolated and does not connect to the engine block. Additional connection to GND reference is needed for each negative terminal.

  • Page 20: Analog Active Sensors

    3.6 Analog Active Sensors Daqu — Manual Thermocouples have a positive and negative wire. The positive wire is con- nected to the + pin and negative wire is connected to – pin of the same A channel. See Figure 8.

  • Page 21: Voltage Output

    An active sensor with voltage output usually has three wires. +5/+12 V sensor input wire is connected to appropriate +5/+12 V Daqu pin, ground wire to GND Daqu pin and the sensor signal output wire to one of B, D or E channels.

  • Page 22: Potentiometers

    +5/+12 V Daqu pin. Signal is connected to one of the D channels, see Figure 10. The third wire is connected to the GND Daqu pin. Some sen- sors do not require GND connection and they are grounded via engine block instead.

  • Page 23: Variable Resistor

    Digital Active Sensors Digital active sensors require external power to operate. They produce a step like signal, which can be viewed at as pulses. Daqu measures time between these pulses. Such sensors are used for measuring engine RPM, rotor RPM and fuel flow.

  • Page 24: Npn - Open Collector Output

    3.8 Digital Active Sensors Daqu — Manual +12 V FFLOW ROTOR Signal 0-5V +5 V Figure 12: An example of potentiometer, connected as variable voltage di- vider. equals to number of digital pulses for one revolution. In the case of fuel flow, the divider equals to number of pulses required per one litre.

  • Page 25: Pnp - Open Drain Output

    Figure 14: An example of PNP digital sensor connection. Examples This section shows various sensor installation details that are common in practice. Only connections to Daqu are described and some general guidelines are given. Relevant engine manual or sensor manual shall be used for details on sensor installation.

  • Page 26: Kanardia

    4.1 EGT – Exhaust Gas Temperature Daqu — Manual Figure 15: Hose clamp type EGT probe (left), bayonet type EGT probe (right). EGT probes are typically placed on the exhaust pipes. Correct placement is important to get precise readings. The placement may vary between engine type and model and exhaust pipe construction.

  • Page 27: Configuration

    Bayonet Type Bayonet type EGT probe requires a nut welded on the exhaust pipe. Test the nut with the probe, to make sure that threads match. Kanardia EGTs require M8x1 nuts (fine thread). Take into consideration the straght rigid part of EGT, which may interfere with cowling if not installed properly.

  • Page 28: Cht - Thermocouple

    Same principles as defined in section 3.5 apply here. Wires can be shortened. But for extension, correct wire material must be used. If this is not respected, Daqu will give false readings. Channels A1 – A4 are labeled as CHTs, but any A channel can be used to connect a thermocouple.

  • Page 29: Configuration

    Daqu — Manual 4.3 CHT - Resistive Sensors engine manual. Once the insert is fixed, insert the spring loaded probe into the insert. 4.2.2 Configuration Once a CHT thermocouple is wired properly, the channel shall be configured according to the Table 4.

  • Page 30: Configuration

    4.3 CHT - Resistive Sensors Daqu — Manual VDO 150 VDO 150 AWG 17 or less Engine GND Engine splitter block Figure 17: Typical connection of CHT sensors on Rotax 912 engines. 4.3.2 Configuration The configuration is shown on table 5.

  • Page 31: Oil Temperature

    Daqu — Manual 4.4 Oil Temperature ˆ NTC (negative temperature coefficient) sensors: VDO 100C, VDO 120C, VDO 150C, VDO 200C, Westach 399, Flybox N1K, Bosh 2500 Ohm, NTC WTS05, NTC JPI, NTC KT 3000 Ohm, NTC TS 103A, Dynon 100409, Dynon 100468, NTC 703-8016 10k, NTC Fusion Copter, Denso 2212, Denso 176-17-5L.

  • Page 32: Coolant (Water) Temperature

    Daqu may be needed. This effectively makes it a two wire installation. The solution shown on Figure 18 shows a typical case for Rotax 912 engine.

  • Page 33: Oil Pressure

    Daqu — Manual 4.6 Oil Pressure Engine GND FUEL Engine +5 V splitter AWG 17 or less block VDO 150 WATER +12 V VDO 150 Figure 18: Typical oil and coolant (water) sensor connection. One wire prin- ciple is used for the oil sensor and two wire principle for the coolant sensor.

  • Page 34: Variable Current

    4.6 Oil Pressure Daqu — Manual Try to use sensors, which can be disconnected close to the sensor head. This reduces the problems with sensor installation – sensor is installed first and then connected. During installation, always respect the limiting torque and other details from the engine installation or maintenance manual.

  • Page 35: Resistive, One Wire

    3.3.1. Connection schematics for one such sensor (a 10 bar VDO) is shown on Figure 5. A configuration for this example is given on Table 10. Daqu supports the following resistance ranges for oil pressure sensors. © Kanardia 2019...
  • Page 36 4.6 Oil Pressure Daqu — Manual Option Selection/Setting Channel Any B, D or E Function Oil pressure Sensor Active 0.5 – 4.5 V Report time 0.5 – 1.0 s Filter 2.0 s Max value (at 4.5 V) Table 9: An example of active pressure sensor with 0.5 – 4.5 V output. Max value is set to 10 bar.

  • Page 37: Fuel Pressure

    Most fuel pressure sensors use 1/8 – 27 NPT thread and some special sealant to prevent fuel leaks. 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 Installation This connection does not power Daqu.

  • Page 38: Current

    Table 11: Channel C configuration for system voltage. Current In order to measure electrical current a CT-30 sensor 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.

  • Page 39: Configuration

    4.10 Fuel Level Up to two fuel level sensors can be connected to Daqu. They are usually connected to E channels. Fuel level sensors are either resistive type or active type. Capacitive sensors are just a special case of active sensors.

  • Page 40: Installation

    4.10 Fuel Level Daqu — Manual 4.10.1 Installation Before installing fuel level sensor into fuel tank, ensure that the tank is com- pletely empty. Make sure to ventilate the tank – fuel vapours are highly explosive. Fuel level sensor must be grounded at all time. Ground connection must never break to prevent any electrical sparks near or inside the fuel tank.

  • Page 41: Tank Shape Calibration

    Daqu — Manual 4.10 Fuel Level Capacitive sensors may be sensitive to the fuel type. If a sensor is calibrated to aviation fuel (without any alcohol) and then automotive fuel is used (or vice versa), a significant error in fuel level indication may appear.

  • Page 42: Position Sensors

    ˆ and some others. These sensors are usually potentiometers (variable resistors) with different ranges. Daqu supports ranges of 400 Ω, 5 kΩ and 10 kΩ. Potentiometer can be connected as variable resistor or variable voltage. Refer to the potentiometer datasheet for pin identification.

  • Page 43: Variable Voltage Divider

    Daqu — Manual 4.12 Engine RPM – Tachometer Option Selection/Setting Channel Any B, D or E Function Pitch trim Sensor Linear 5 V Report time 0.2 – 0.5 s Filter about 0.5 s Table 16: An example configuration for pitch trim sensor connected as variable voltage divider.

  • Page 44: Z Channel

    When reduction gearbox is attached to an engine, propeller PRMs are smaller than engine RPMs. When reduction ratio is provided, Daqu emits propeller RPMs instead of engine RPMs. Usually, the reduction ratio is 1.0, which means that engine RPMs are emitted.

  • Page 45: Rotor Rpm

    Daqu — Manual 4.12 Engine RPM – Tachometer Trigger Coil (Rotax) Variable Reluctance +12 V FFLOW ROTOR +5 V Figure 24: Connection of trigger coil sensor or variable reluctance sensor to Z channel. Option Selection/Setting Channel Z only Function Engine RPM...

  • Page 46: Fuel Flow

    Fuel flow sensors are active sensors with pulse output. Each sensors gives out specific number of pulses per some volume and this value must be set to Daqu. Daqu expects number of pulses per liter. Sensors are either calibrated, where each sensors has its own value attached to it (FloScan sensors, for example), or a general number for all sensors of the same type is given (FT-60, for example).

  • Page 47: Installation

    The fuel flow rate in liters per hour is then calculated as: 3600 · FuelFlow[l/h] = · Daqu measures average time between pulses and the other two values must be specified in configuration. 4.13.1 Installation Each sensor may have specific installation requirement. Please check the sensor manual for details.

  • Page 48: Configuration

    (Fuel flow 2). Engine ECU Connection This Daqu version in not designed to connect to an engine ECU. Mini Daqu shall be used instead. However, there is a possible exception. Mini Daqu has quite limited number of additional channels. In addition, it does not support A type channels, so thermocouple sensors can’t be used.

  • Page 49: Rotax Is

    Daqu — Manual 5.1 Rotax iS Standard Daqu has much more channels, but it does not have an ECU con- nection. For this reason, a modified version of standard Daqu was developed, which allows connection to ECU’s with a CAN bus (Rotax iS, for example).
  • Page 50 Figure 27: Photo of connector back side. Note the three small numbers, which define the pin positions. GND is usually not connected. Once the connector is made, plug it into Daqu and the installation is ready. Do not forget to set (or to verify) correct engine model in Nesis/Emsis/Aetos/Digi.

  • Page 51: Limited Conditions

    Exclusions and Limitations This Limited Warranty applies only to hardware products manufactured by or for Kanardia that have the ”Kanardia” trademark, trade name, or logo affixed to them at the time of manufacture by Kanardia. The Limited Warranty does not apply to any non-Kanardia hardware products or any software, even if packaged or sold with Kanardia hardware.
  • Page 52 No Kanardia reseller, agent, or employee is authorized to make any modification, extension, or addition to this warranty, and if any of the foregoing are made, they are void with respect to Kanardia. Limitation of Liability...

  • Page 53: 6.2 Tso Information

    Kanardia products and any failure to maintain the confidentiality of data stored on the product. Under no circumstances will Kanardia be liable for the provision of substitute goods or services.

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