Kanardia Indu Variometer Manuel utilisateur

INDU VARIOMETER

Manual

Kanardia d.o.o.

February 2020

Kanardia d.o.o.

Revision 1.1

Variometer — Manual

Contact Information

Publisher and producer:

Kanardia d.o.o.

Lopata 24a

SI-3000

Slovenia

Tel: +386 40 360 512

Email: info@kanardia.eu

A lot of useful and recent information can be also found on the In-

ternet. See http://www.kanardia.eu for more details.

This document is published under the Creative Commons, Attribution-

ShareAlike 3.0 Unported licence. Full license is available on http://

creativecommons.org/licenses/by-sa/3.0/legalcode web page

and a bit more human readable summary is given on

http://creativecommons.org/licenses/by-sa/3.0/. In short, the

license gives you right to copy, reproduce and modify this document

if:

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you cite Kanardia d.o.o. as the author of the original work,

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you distribute the resulting work only under the same or similar

license to this one.

Credits

This document was written using TeTeX (L

EX) based document

creation system using Kile running on Linux operating system. Most

Kanardia 2015 - 2020

Variometer — Manual

of the ﬁgures were drawn using Open Oﬃce Draw and Inkscape ap-

plications. Photos and scanned material was processed using Gimp.

Sam2p was used to convert pictures into eps format. All docu-

ment sources are freely available on request under the licence men-

tioned above and can be obtained by email. Please send requests to

info@kanardia.eu.

Revision History

The following table shows the revision history of this document.

Rev. Date Description

1.0 Oct 2015 Initial release

1.1 Feb 2020 Revision

Kanardia 2015 - 2020

Variometer — Manual CONTENTS

Contents

1 Introduction 4

1.1 General Description . . . . . . . . . . . . . . . . . . . 4

1.2 Technical Speciﬁcation . . . . . . . . . . . . . . . . . 4

1.3 Options ......................... 5

1.3.1 Display ..................... 5

2 Installation 7

2.1 Mounting Dimensions . . . . . . . . . . . . . . . . . . 7

2.2 Connections....................... 7

2.2.1 Static Pressure - Pst .............. 7

2.2.2 CAN Bus - CAN ................. 8

2.2.3 Illumination . . . . . . . . . . . . . . . . . . . 9

2.2.4 Power - POWER .................. 10

3 Maintenance & Repair 10

4 Sensor Calibration 11

4.1 Calibration Procedure . . . . . . . . . . . . . . . . . 11

4.2 Pressure Altitude Calculation . . . . . . . . . . . . . 11

4.3 Altitude Derivative . . . . . . . . . . . . . . . . . . . 12

5 Limited Conditions 12

5.1 Warranty ........................ 13

5.2 TSO Information . . . . . . . . . . . . . . . . . . . . 15

Kanardia 2015 - 2020

Variometer — Manual 1. Introduction

1 Introduction

First of all, we would like to thank you for purchasing our device.

Indu variometer is an electronic device, which mimics classical vari-

ometer construction and combines it with the state of the art elec-

tronics. This results in the best of both worlds; a perfect and intuitive

analogue reading combined with high precision of modern electronics.

This manual describes the technical description of the unit, installa-

tion and operation.

CAUTION: Indu Variometer is not TSO approved as a ﬂight

instrument.

1.1 General Description

The variometer is an electromechanical device. It consist of high

precision electronic barometric sensor, which provides static pressure

information in digital form. The electronics reads the pressure sensor

and numerically calculates the altitude change. The result drives

stepper motor turning a needle. The calculated rate of change is also

shown on a colour LCD display. When connected to a CAN bus the

variometer outputs the vertical speed information. Analog scale is

divided lineary with a zero speed on the left side. An optional dim

knob can be connected to the device and it is used to adjust the

brightness of the screen.

1.2 Technical Speciﬁcation

Table 1 shows some basic technical speciﬁcation of Indu variometer.

Kanardia 2015 - 2020

Variometer — Manual 1.3 Options

Description Value

Weight 57 mm: 150 g

80 mm: 200 g

Size (with connectors) 57 mm: 60 x 60 x 66 mm

80 mm: 82 x 82 x 66 mm

Panel hole (standard ﬁt) 80 mm (3.15 inch)

57 mm (2.25 inch)

Altitude range -500 to 15000 m, (-1500 to 45000 feet)

Operational voltage 8 to 32 V

Power consumption 1.2 W

Current 100 mA at 12 V, 50 mA at 24 V

Operating temperature -30 ◦Cto +85 ◦C

Humidity 30 % -90 %, non condensing

Barometric sensor 24 bit, 10-1200 hPa, 20 cm resolution

Communication CAN bus, 29 bit header, 500 kbit,

Kanardia protocol

Table 1: Basic technical speciﬁcations.

1.3 Options

The instrument is available in two diﬀerent sizes, diﬀerent scale units

and diﬀerent scale ranges. The scale units and range must be speci-

ﬁed at the time of order.

The variometer is available in meters per second and feet per minute

units. The standard range is ±10 m/s or ±2000 fpm.

Diﬀerent units and range is also possible with additional charges.

1.3.1 Display

Standard LCD display layout displays two values: Vario on top of

the screen and ﬂight time on the bottom.

Kanardia 2015 - 2020

Variometer — Manual 1.3 Options

(a) 57 mm

(b) 80 mm

Figure 1: Front and side view of the variometer with its principal

dimensions.

If you want a diﬀerent LCD display layout, you can conﬁgure it your-

self with our Customizer desktop application.1This option requires

Kanardia’s Blu device for transfering the conﬁguration from your an-

1Available from April 2020

Kanardia 2015 - 2020

Variometer — Manual 2. Installation

droid device to your Indu Variometer. Please read our Customizer

Manual for more information.

2 Installation

The Indu variometer requires a standard size 80/57 mm hole in the

instrument panel. The position of the hole must ensure visibility

from the pilot’s perspective.

2.1 Mounting Dimensions

The mounting screw holes are located on a circle of 89/65 mm diam-

eter. The instrument is mounted using four screws type M4. To pre-

vent internal stresses, please make sure that the instrument panel is

ﬂat. It is highly recommended that the instrument panel is mounted

using rubber shocks, which reduce the vibrations. Figure 2 illustrates

the panel cutout and mounting holes.

2.2 Connections

Figure 3 illustrates all connections at the back side of the instrument.

2.2.1 Static Pressure - Pst

Indu Variometer must be connected to the static pressure source.

Static pressure source is usually obtained from pressure sources lo-

cated on the fuselage side surfaces or from the static port on the pitot

tube.

Locate the existing tube, cut it at an appropriate place and insert a

T junction. Install a new tube from junction to the instrument.

Kanardia 2015 - 2020

Variometer — Manual 2.2 Connections

(a) 57 mm

(b) 80 mm

Figure 2: Instrument panel cutout and mounting hole. Note: Figures

are not in scale.

It is highly recommended to keep the static tubing as short as pos-

sible. The tubing must avoid sharp bends and twists. The tubing

must be airtight. Water must not be allowed to enter the tubing.

It is strongly recommended to label each tube before connecting to

Indu Variometer. This will help a lot if you ever have to remove and

re-install the instrument.

2.2.2 CAN Bus - CAN

Connection to the CAN bus is optional and is not required for the

normal operation.

Use standard RJ45 ethernet cable to connect it with other Kanardia

equipment.

When connected to the bus, vaiometer will transmit vertical speed

to other units connected on the bus.

Kanardia 2015 - 2020

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