Kistler CHFA Owner's manual

Instruction

Manual

HF Sensors

Optical Laser Height

Sensors

Type CHFA…

CHFA_002-583e-08.12

Instruction

Manual

HF Sensors

Optical Laser Height

Sensors

Type CHFA…

CHFA_002-583e-08.12

Foreword

CHFA_002-583e-08.12 Page 1

Foreword

Thank you for choosing a Kistler quality product

characterized by technical innovation, precision and long

life.

Information in this document is subject to change without

notice. Kistler reserves the right to change or improve its

products and make changes in the content without

obligation to notify any person or organization of such

changes or improvements.

expressly provided herein, no part of this manual may be

reproduced for any purpose without the express prior

written consent of Kistler Group.

Kistler Group

Eulachstrasse 22

8408 Winterthur

Switzerland

Tel. +41 52 224 11 11

Fax +41 52 224 14 14

[email protected]

www.kistler.com

Kistler Automotive GmbH

Competence Center Wetzlar

Charlotte-Bamberg-Str. 12

35578 Wetzlar

Germany

Tel. +49 6441 9282 0

Fax +49 6441 9282 17

[email protected]m

Content

Page 2 CHFA_002-583e-08.12

Content

1.

Introduction ................................................................................................................................... 4

2.

Important Notes ............................................................................................................................. 5

2.1

For Your Safety .................................................................................................................... 5

2.2

Disposal Instructions for Electrical and Electronic Equipment ................................................ 7

2.3

Software Upgrades and Updates .......................................................................................... 7

3.

Product Overview .......................................................................................................................... 8

3.1

General Description .............................................................................................................. 8

3.2

Features ............................................................................................................................... 9

3.3

Application ........................................................................................................................... 9

3.4

Accessories ........................................................................................................................... 9

4.

Technical Data ............................................................................................................................. 10

4.1

Specifications ...................................................................................................................... 10

4.2

Pin Assignments ................................................................................................................. 11

4.3

Sensor Settings ................................................................................................................... 13

4.3.1

Average Time ........................................................................................................ 13

4.3.2

Buffer Time ........................................................................................................... 13

5.

Setup and Connection .................................................................................................................. 14

5.1

Mounting Options ............................................................................................................. 14

5.2

Sensor Mounting Jig ........................................................................................................... 16

5.3

Mounting Instructions ....................................................................................................... 17

5.3.1

Installation with Suction Holder ............................................................................. 17

5.3.2

Installation with Magnet Holder ............................................................................ 25

5.3.3

Installing the Safety Line ........................................................................................ 29

5.4

Connecting the Sensor ....................................................................................................... 31

5.4.1

Connecting the Sensor to a Data Acquisition System ............................................. 31

5.4.2

Sensor Configuration ............................................................................................. 31

6.

Sensor-specific Software Description ........................................................................................... 32

6.1

Project Window Settings HF Sensors .................................................................................. 32

6.1.1

Measurement Display ............................................................................................ 32

6.1.2

Filter ...................................................................................................................... 33

6.1.3

CAN-Bus ............................................................................................................... 34

6.2

CAN Protocol ..................................................................................................................... 35

6.2.1

Definitions of the Frame ........................................................................................ 36

6.3

Generating CAN Database files (CanDB) ............................................................................ 37

Content

CHFA_002-583e-08.12 Page 3

7.

Troubleshooting ........................................................................................................................... 38

7.1

Cables and Power Supply .................................................................................................... 38

7.2

Protection Glass .................................................................................................................. 38

7.3

Operating Range ................................................................................................................ 38

7.4

Software ............................................................................................................................. 38

7.5

CAN .................................................................................................................................... 39

7.6

Environmental Conditions ................................................................................................... 39

7.7

Service ................................................................................................................................ 39

8.

Appendix ...................................................................................................................................... 40

Total pages: 40

Optical Laser Height Sensors Type CHFA…

Page 4 CHFA_002-583e-08.12

1. Introduction

Please take the time to thoroughly read this instruction

manual. It will help you with the installation, maintenance,

and use of this product.

To the extent permitted by law Kistler does not accept any

liability if this instruction manual is not followed or

products other than those listed under Accessories are

used.

Kistler offers a wide range of products for use in measuring

technology:

 Piezoelectric sensors for measuring force, torque, strain,

pressure, acceleration, shock, vibration and acoustic-

emission

 Strain gage sensor systems for measuring force and

torque

 Piezoresistive pressure sensors and transmitters

 Signal conditioners, indicators and calibrators

 Electronic control and monitoring systems as well as

software for specific measurement applications

 Data transmission modules (telemetry)

Kistler also develops and produces measuring solutions for

the application fields engines, vehicles, manufacturing,

plastics and biomechanics sectors.

Our product and application brochures will provide you

with an overview of our product range. Detailed data

sheets are available for almost all products.

If you need additional help beyond what can be found

either on-line or in this manual, please contact Kistler's

extensive support organization.

Important Notes

CHFA_002-583e-08.12 Page 5

2. Important Notes

2.1 For Your Safety

Please read carefully before operating the equipment.

Kistler is not responsible for damage that may occur when

this system is used in any way other than that for which it

is intended.

To assure safe and proper operation, all supplied

equipment, components and/or accessories must be

carefully transported and stored, as well as professionally

installed and operated. Careful maintenance and usage in

full accordance with operating instructions is imperative.

The equipment should be installed and operated only by

qualified persons who are familiar with devices of this type.

Local regulations may not permit the operation of motor

vehicles on public highways while the equipment is

mounted on the exterior of the vehicle.

Laser radiation is emitted from this device. Do not stare

into beam!

Laser class 3R according to DIN EN 60825-1:2001-11,

laser power: < 5 mW, wave length: 660 nm (red).

Optical Laser Height Sensors Type CHFA…

Page 6 CHFA_002-583e-08.12

Do not use defective or damaged equipment,

components and/or accessories.

Do not modify or change the equipment or its

accessories in any way.

Equipment must be mounted firmly and securely.

Improper use or mounting of the equipment may affect

the safety of the vehicle and/or occupants. The

equipment must not be mounted and/or operated in

any way that may compromise vehicle or and/or

occupant safety.

Do not mount equipment, components and/or

accessories near heat sources (e.g. exhaust).

The sensor and/or sensor components may be

damaged if power is applied for extended periods,

especially in hot environmental conditions.

To avoid damage to the sensor lens, please do only

clean it with a micro-fiber cloth.

Use only original equipment, components and/or

accessories included in the scope of delivery.

Always note correct pin assignments and operating

voltages when connecting equipment to power

supplies, data acquisition/evaluation systems, and/or

any other applicable system or component. Equipment

may be damaged if not properly connected and/or

operated.

We recommend using only cables supplied within the

scope of delivery. If it is necessary to make cables,

always note correct pin.

Kistler assumes no liability for damages caused due to

the use of cables other than delivered by Kistler.

Disconnect power from the sensor if the vehicle is

stationary for extended periods.

For additional information, please call the Kistler

Hotline +49 6441 9282 82 or send an E-Mail to

hotline.kcd@kistler.com.

Important Notes

CHFA_002-583e-08.12 Page 7

2.2 Disposal Instructions for Electrical and Electronic Equipment

Do not discard old electronic instruments in municipal

trash. For disposal at end of life, please return this

product to an authorized local electronic waste disposal

service or contact the nearest Kistler Instrument sales

office for return instructions.

2.3 Software Upgrades and Updates

Kistler may from time to time supply upgrades or updates

for embedded software. Such upgrades or updates must

always be installed.

Kistler declines any liability whatsoever for any direct or

consequential damage caused by products running on

embedded software which has not been upgraded or

updated with the latest software supplied.

Optical Laser Height Sensors Type CHFA…

Page 8 CHFA_002-583e-08.12

3. Product Overview

3.1 General Description

HF laser height-sensors are designed for non-contact

distance measurement for vehicle dynamics testing.

Laser height-sensors of the HF series use the principle of

optical triangulation. A visible red laser is focused onto the

road surface. Reflected light is collimated onto a linear

CCD array. The distance to the object is calculated from

the position of the light spot on the CCD array. The output

of the sensor is directly proportional to the measured

height.

HF sensors can be mounted together with a Correvit

®

SFII-P at the same holder, thus enabling simultaneous

measurement of sideslip angle and vehicle ride height

relative to spring travel.

HF sensors are configured with the CeCalWin Pro Software

via the serial port (RS-232C).

Fig. 1: HF sensor, mounted with magnet holder at the

rear passenger door

Product Overview

CHFA_002-583e-08.12 Page 9

3.2 Features

 Working ranges of 100 ... 900 mm, depending on type:

HF-250C: 100 ... 350 mm, HF-500C: 125 ... 625 mm,

HF-750C: 150 ... 900 mm

 For static and dynamic measurements

 Compact design

 With spray guard for better performance on wet

surfaces

 Signal outputs: Analog, CAN and RS-232C

 Negligible service and maintenance requirements

3.3 Application

Height-sensors for measuring e.g. pitch and roll angle

according to ISO 4138 (steady-state circular-course drive).

Further fields of application are for instance uplift

measurements, spring deflection, dynamic tire flat spotting,

tire lift-off (Fishhook Test).

Two HF sensors mounted at the wheel enable dynamic

camber angle measurement (refer to the Kistler DCA

System).

3.4 Accessories

Included Accessories Type/Art. No.

 Signal cable HF 1xBNC, 2xbunch, l = 1 m KCD14992

 Signal cable HF 6 pin. Lemo, l = 1 m KCD14993

 Connection cable CAN, l = 1 m KCD15622

 Connection cable RS-232C, l = 1 m KCD14991

 USB Adapter KCD13971

 Mini folding rule KCD14643

 Multimedia-CD incl. software & manuals KCD11343

 Sensor calibration HF sensors KCD17166

 Screw driver Torx T10 KCD15887

 Hexagon wrench 6 kt 4 mm KCD14283

 Screw set for HF KCD17195

 Transport case, complete KCD17196

Optional Accessories Type/Art. No.

 4-point magnetic holder KCD15694

 8-point magnetic holder KCD14091

 3-point suction holder KCD16049

 Wheel mounting system KCD14178

Optical Laser Height Sensors Type CHFA…

Page 10 CHFA_002-583e-08.12

4. Technical Data

4.1 Specifications

Performance Specifications

HF-250C HF-500C HF-750C

Measurement range mm 100 ... 350 125 ... 625 150 ... 900

Resolution mm 0,1 0,2 0,3

Linearity % ±0,2 ±0,2 ±0,3

Sampling rate1) kHz 0,3 … 8

Light source Laser

Laser class 3R (IEC608251)

Laser power mW <5

Wave length nm 660

Spot size (approx.) mm 1x2

Signal Outputs

Analog output V 0 … 10

Interfaces

CAN (Intel) 2) 2.0B

RS-232C yes

System Specifications

Power supply V

10… 18

Power consumption at 12 V W 1,5

Temperature range

Operation °C –5 … 60

Storage °C –10 … 70

Rel. Humidity (non-condensing) % 5 … 80

Protection standard (cable mounted) IP67

Dimensions

(LxWxH, without spray guard)

mm 100x20x40

Weight (without cable) grams 155

Case aluminum, anodized

1) a sampling rate up to 8 kHz is possible on surfaces with high reflection

2) output rate CAN max. 250 Hz

Technical Data

CHFA_002-583e-08.12 Page 11

4.2 Pin Assignments

Sensor connector, analog/digital, 9 pin MIL, male

1

2

3

4

5

6

7

8

9

Signal

TXT

RXD

CAN+

CAN–

Shield

GND

Signal

9 … 18 V

0 V

Signal cable, 1 m 8 pin Binder with cable to 6 pin Lemo

1

2

3

4

5

6

Signal

n.c.

12 V

GND

n.c.

Signal

0 V

Signal cable, 1 m 8 pin Binder with cable to BNC and

2x4 mm bunch pin plug

Bunch pin plug black 0 V

Bunch pin plug red 12 V

BNC Sig.

BNC Shield

Signal

GND

Optical Laser Height Sensors Type CHFA…

Page 12 CHFA_002-583e-08.12

RS-232C output cable, 1 m 8 pin Binder with cable to

9 pin D-Sub and 2x4 mm bunch pin plug

Bunch pin plug black 0 V

Bunch pin plug red 12 V

1

2

3

4

5

6

7

8

9

Signal

10 k with pin 7

TXD

RXD

n.c.

GND

n.c.

10 k with pin 1

n.c.

Output cable, 1 m 8 pin Binder with cable to 9 pin D-Sub

and 2x4 mm bunch pin plug

Bunch pin plug black 0 V

Bunch pin plug red 12 V

1

2

3

4

5

6

7

8

9

Signal

n.c.

CAN–

n.c.

CAN+

n.c.

Technical Data

CHFA_002-583e-08.12 Page 13

4.3 Sensor Settings

The following parameters can be set with the help of

CeCalWin Pro.

4.3.1 Average Time

Due to the high sampling rate and the small measuring

spot, the sensor signal may be quite rough on uneven

surfaces but it is possible to smoothen the signal by using a

moving average filter. Source data are stored in a circular

buffer, and a new mean value is calculated each time the

new result arrives; therefore, the output may be regarded

as a moving average.

Please note that signal detail and dynamics will

decrease as the signal becomes increasingly smooth.

This parameter specifies the number of source results to

be averaged for deriving the output value!

4.3.2 Buffer Time

If the sensor is out of range or the laser spot is shaded, the

sensor output will show a zero value. To prevent these

erroneous measurements a buffer time can be set.

If the sensor cannot acquire a valid measurement value,

the sensor will put out the last valid value for this time

maximum. As soon as a new valid value is acquired, the

sensor will put this out.

Optical Laser Height Sensors Type CHFA…

Page 14 CHFA_002-583e-08.12

5. Setup and Connection

5.1 Mounting Options

Fig. 2: Possible mounting positions

In wet or snowy conditions, please mount the sensor at

the front of the vehicle. This will help to prevent

measurement anomalies that can be caused by spray

and/or blowing snow.

1) Two HF sensors mounted at the wheel enable dynamic camber angle

measurement (refer to the DCA System).

DCA System

1)

Setup and Connection

CHFA_002-583e-08.12 Page 15

To achieve optimum performance and accuracy, the

mounting distance from the lower surface of the sensor

body (not including the spray guard) to the road surface

must be within the specified range (see chapter 4.1

Specifications).

Fig. 3: Mounting distances

sensor body

road surface

HF

-

250C: 100 … 350 mm

HF-500C: 125 … 625 mm

HF-750C: 150 … 900 mm

Optical Laser Height Sensors Type CHFA…

Page 16 CHFA_002-583e-08.12

5.2 Sensor Mounting Jig

Fig. 4: Sensor dimensions

The electronic unit is equipped with reverse polarity

protection. In the event that polarity is inverted, the

unit will not be damaged. Immediately disconnect

power from the unit and correct the power supply

connection.

M

ounting surface

Please keep free from stickers or

labels!

Setup and Connection

CHFA_002-583e-08.12 Page 17

5.3 Mounting Instructions

5.3.1 Installation with Suction Holder

Fig. 5: 3-point suction holder HF, Art. No. KCD15408

To assure proper function of the suction holders, the

mounting area must be free of grease, oil, dust and

other contaminants. For this reason it is necessary to

clean the painted surface in the mounting area before

attaching the suction holders. Do not use cleaning

products that leave residue of any kind on the surface.

Always inspect the suction mounting unit before use.

Special attention should be paid to the condition of the

rubber suction pads, which must be absolutely intact.

Replace damaged pads immediately.

Locking lever

Sensor mounting plate

Suction holder

Pumping piston

Level indicator

Top: Stabilizer element

Bottom: Suction holder unit

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Kistler CHFA Owner's manual

Kistler CHFA Owner's manual

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