Kistler 4665B1 Owner's manual

Brand: Kistler

Model: 4665B1

Category: Multimeters

Type: Owner's manual

This manual is also suitable for

4665B2

Instruction

Manual

Piezoresistive

Amplifier

Type 4665B1

Type 4665B2

4665B_002-699e-06.14

Instruction

Manual

Piezoresistive

Amplifier

Type 4665B1

Type 4665B2

4665B_002-699e-06.14

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

info@kistler.com

www.kistler.com

4665B_002-699e-06.14 Page 1

Piezoresistive Amplifier Type 4665B1, 4665B2

Content

1. Introduction .................................................................................................................................. 3

1.1 Disposal Instructions for Electrical and Electronic Equipment ................................................ 3

1.2 Software Upgrades and Update ........................................................................................... 4

2. Piezoresistive Amplifier Type 4665B1, 4665B2 ........................................................................ 5

2.1.1 Parameterization of the piezoresistive amplifier Type 4665B1/4665B2 ................ 8

2.1.2 Pressure compensation of the piezoresistive sensors ......................................... 13

3. Integration of the SCP-CAN interface in third-party systems for outputting the

temperature values.................................................................................................................... 14

3.1 CAN Bus Topology ............................................................................................................ 14

3.2 Connection assignment of internal CAN2 interface .......................................................... 14

3.3 Transmission Rate ............................................................................................................ 15

3.4 Identifier ............................................................................................................................. 15

3.5 Data Field .......................................................................................................................... 16

3.5.1 Data Field Temperature Output Type 4665B ....................................................... 16

3.5.2 Test signal output ................................................................................................. 17

3.5.3 Activation of CAN output ...................................................................................... 17

3.6 Can description file (*.dbc) ................................................................................................ 18

4. Technical Data ........................................................................................................................... 19

Total Pages 20

Page 2 4665B_002-699e-06.14

Introduction

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.

1.1 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.

4665B_002-699e-06.14 Page 3

Piezoresistive Amplifier Type 4665B1, 4665B2

1.2 Software Upgrades and Update

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.

Page 4 4665B_002-699e-06.14

Piezoresistive Amplifier Type 4665B1, 4665B2

2. Piezoresistive Amplifier Type 4665B1, 4665B2

This amplifier module is a microprocessor-controlled 2-

channel amplifier for conditioning the measuring signals from

piezoresistive pressure sensors. It is provided with analog

signal conditioning and also PiezoSmart sensor iden-

tification, which is automatically activated when the ap-

propriate sensors are connected. The amplifier module Type

4665B1 is compatible with SCP Slim (Type 2852A…) and,

except for the dimensions of the front panel and the housing

cover, is identical in design with the amplifier module Type

4665B2 that can be used for SCP (Type 2853A…) and SCP

Compact (Type 2854A…).

When the adaption set of the Type 5746A5 is used, the

amplifier module Type 4665B1 can be used with the SCP

Type 2853A… or the SCP Compact Type 2854A….

The sensors are each connected through a connection cable

(e.g. Kistler Types 4761B…/4763B… ) to the 5 pin sockets of

channels A or B. The conditioned analog signals can be

taken off from either the BNC sockets on the front of the

amplifier or alternately via the output socket of the SCP (D-Sub

37 Pin).

A red Error LED is assigned to each channel that flashes when

the overload threshold (approx. ±11 V) of the analog output

signal has been exceeded. As soon as the level falls below the

overload threshold, the Error LED is extinguished once again.

Fig. 1: Type 4665B1 for SCP Slim

Fig. 2: Type 4665B2 for SCP/SCP

Compact

The overload threshold can also be exceeded briefly,

when the sensor input is open or when the sensor

cable is plugged in.

4665B_002-699e-06.14 Page 5

Piezoresistive Amplifier Type 4665B1, 4665B2

The parameterization takes place as described via the SCP

software. Here you enter the sensor-specific data, e.g. the

sensor sensitivity "Sensitivity" and the measurement range.

This data is acquired automatically when the sensor

identification (PiezoSmart) is used. You can preselect

various low-pass filters for filtering of the output signal. In

addition, you can offset the zero point on the analog output

signal by –8 V or –10 V so that the signal range and thus the

resolution are improved for the downstream analog-digital

converter.

Type 4665B2 Type 4665B1

Analog signal output,

Channel A/B, BNC neg.

Analog temperature output /

digital input for triggering the

operating time acquisition,

D-Sub 9 pin neg.

Signal input, Channel A/B,

Fischer 103 5 pin.

Error LEDs, Channel A/B

Page 6 4665B_002-699e-06.14

Piezoresistive Amplifier Type 4665B1, 4665B2

Plug Type

D-Sub 9 pin

assignment

 Pin 1

Analog temperature output Channel A

 Pin 6

Analog temperature output Channel B

 Pin 3

Input Trigger Channel A / Operating time

acquisition



Pin 8

Input Trigger Channel B / Operating time

acquisition

 Pin 4

 Pin 9

 Pin 7

+24 V DC

 Pin 2

Analog GND / EGND

Table 1: Pin assignment of the interface for analog

temperature output and digital trigger.

Connection variants for external activation of the trigger for

simultaneous operating time acquisition of the PiezoSmart sensors

connected to Channels A and B.

Variant 1:

Activation via external

switch.

D-Sub interface

4665B…

D-Sub interface

4665B…

Variant 2:

Activation via external

voltage source and

external switch.

4665B_002-699e-06.14 Page 7

Piezoresistive Amplifier Type 4665B1, 4665B2

2.1.1 Parameterization of the piezoresistive amplifier Type 4665B1/4665B2

As described in chapter 6.4. of the SCP Instruction Manual

(Doc. 002-291e), open the window for setting the parame-

ters of the piezoresistive amplifier.

Fig. 4: Window for parameter setting of the

piezoresistive amplifier. Depiction with

activated TEDS function.

Fig. 3: Window for parameter setting of

the sensor data. Depiction with

activated TEDS function.

Connection variants for analog signal acquisition of the sensor temperature

Channel A

Channel B

D-Sub interface

4665B…

D-Sub interface

4665B…

Page 8 4665B_002-699e-06.14

Piezoresistive Amplifier Type 4665B1, 4665B2

The window is divided up into a total of four areas.

The specifications of your piezoresistive amplifier

can be found in the top area. You can enter the

parameters belonging to sensor [A] and sensor [B]

(channel A and channel B) in the two middle areas.

To edit the respective sensor data, the input field

(sensor settings) must be opened with a double-click

in the "show sensor data" menu field.

You enter the settings, which apply to both sensor

inputs, in the bottom area. The contents of the

grayed out boxes are fixed and cannot be changed.

The grayed out boxes and the user interface change

depending on whether sensors are used with or

without sensor identification.

Basically, the following parameters can be set in the

sensor settings. The respective data is to be

obtained from the calibration sheet. In the case of

PiezoSmart sensors, settings are made automa-

tically, at which time an offset correction can be

implemented.

sensor type

sensor SN (serial number)

range (nominal pressure measuring range of the sensor):

Depending on the pressure unit, the input value is

specified in [bar] or [psi] or [kPa].

reference current:

Nominal sensor supply current that, in accordance

with the specified sensor data, can be set to either 1

mA or 4 mA.

sensitivity (sensor sensitivity):

Sensitivity of the sensor; the input value is in

[mV/(bar*mA)].

ZMO compensation (ZMO = Zero Measurement Output,

Sensor-Offset in the zero point):

This is the sensor bridge voltage at the zero point

(with relative sensors = 0 bar, with absolute sensors

= vacuum ≤1 mbar abs.) and supply with reference

current. The value is entered in [mV], [psi] or [kPa].

This is an offset value specific to the sensor

concerned and which you will find in the calibration

sheet.

non-linearity:

The linearity correction is used to correct systematic

sensor errors. The input value is in [%]. If necessary,

values in the range of ±3 %FS (in 0,1% increments)

Fig. 5: Window for parameter setting

of the sensor data. Depiction

with non-activated TEDS

function.

4665B_002-699e-06.14 Page 9

Piezoresistive Amplifier Type 4665B1, 4665B2

can be entered. When an error value of, for

example, 0,2 % is entered, then the correction is by

–0,2 %.

The linear correction is to be used only if the values

are listed on the calibration sheet.

show TEDS data (display of the sensor identification

data):

If you have connected a sensor with sensor

identification, then you can view the calibration data

here with a double-click and modify it, depending on

the access authorization.

The general amplifier settings and the specifications

from the sensor settings are displayed in the amplifier

settings. The following settings can be made for each

channel.

gain (amplification factor):

A gain from 1 ... 10 can be set as additional amplifi-

cation, the calibration factor being automatically ad-

justed accordingly.

low pass filter:

A low pass filter of the second order can be

activated for the elimination of high-frequency

interference signals. 10 Hz, 30 Hz, 100 Hz, 300 Hz,

2 kHz, 3 kHz, 10 kHz or 30 kHz can be set as cut-off

frequencies.

output offset shift (zero point shifting):

You can shift the zero point of the output signal by

–8 V or –10 V, at which time the amplification factor

is adjusted automatically to 1,8 or 2,0. The zero

point offset enables a wider spreading of the output

signal. This enables the resolution of a downstream

data acquisition system to be increased.

Fig. 6: Window for parameter setting of the

piezoresistive amplifier. Depiction with

activated TEDS function.

Page 10 4665B_002-699e-06.14

Piezoresistive Amplifier Type 4665B1, 4665B2

offset correction (zero point correction):

You can use this function to correct a deviation of

the zero point that is caused by installation effects

(e.g. mechanical tensions). The input value is in

[bar]. The value is correct when, in the case of rela-

tive sensors without application of pressure (zero

point), the voltage at the analog output (BNC socket)

is at 0 V or, in the case of absolute sensors, the am-

bient air pressure on the sensor has been compen-

sated for at the analog output.

digital temperature compensation:

This function can be used to activate digital tempera-

ture compensation when a sensor is equipped with

this feature.

Further performance improvements are made using

digital characterization techniques whereby, the ef-

fects of zero and sensitivity changes due to tempe-

rature can be further reduced without sacrificing

signal bandwidth. The digital compensation techni-

que allows further a monitoring of the sensor tempe-

rature.

show sensor data (display of the sensor data)

Double-click opens the window for parameter set-

tings of the sensor data.

TEDS (activation of the TEDS function):

This function can be used to activate or deactivate

the TEDS function.

The following selection options are available:

• activated

• Off

• Only SN & Type No.

(only the serial and type numbers are read

out, no calibration data of the sensor)

send temperature (temperature read-out function):

This function can be used to switch the sensor

temperature read-out function on or off or to activate

a test mode. (applies only for the data output via the

CAN bus interface)

temperature CAN Ident (interface addressing):

Establishment of the object identifier (CAN Ident).

Additional information is described in chapter 2

"Integration of the SCP-CAN interface in third-party

systems for outputting temperature values".

Fig. 7: Window for the selection of the

TEDS settings.

4665B_002-699e-06.14 Page 11

Piezoresistive Amplifier Type 4665B1, 4665B2

TEDS work timer (operating time acquisition sensor):

The operating time acquisition of the piezoresistive

PiezoSmart sensors can be activated in

synchronization with the charge amplifier Types

5064C…/5064B… installed in the SCP via the

respective slot selection. As an alternative, the

operating time acquisition can be activated via a

digital trigger signal.

The basic function of the piezoresistive amplifier Type

4665B1/4665B2 corresponds to that of a voltage

amplifier. Any initial partial ranges of a sensor can be

used by selecting the gain and zero offset. This has

the advantage, for example, that the resolution of a

downstream data acquisition device is improved in an

initial range of the sensor.

The following table shows possible gain settings of a sen-

sor with a measuring range of 10 bar:

Desired

Measurement

range

Zero point shift [V]

[bar]

–8,0

–10,0

0 ... 10

1,0

1,8

2,0

0 ... 5,0

2,0

3,6

4,0

0 ... 2,5 4,0 7,2 8,0

0 ... 2,0

5,0

9,0

10,0

Table 2: Setting example of the amplification factor of a

sensor with the nominal measurement range

of 10 bar

A subsequent change in the gain directly affects the out-

put signal and must be made with great care.

Fig. 8: Extract from the window of the TEDS data in

which the sensor operating time is saved.

Page 12 4665B_002-699e-06.14

Piezoresistive Amplifier Type 4665B1, 4665B2

2.1.2 Pressure compensation of the piezoresistive sensors

The input window for the absolute pressure

adjustment is selected through the menu "Setup"

-> "Piezoresistive Absolute Pressure Adjustment".

The connected sensors can be assigned for the

pressure adjustment of two groups.

Group 1: Engine running

Group 2: Engine stop

In addition, there are two possibilities for the

selection of the reference pressure at which the

measurement channels are to be adjusted.

1.) Reference Pressure "via Reference Sensor"

The measured pressure of a reference sensor that

is assigned to a measuring channel is used as the

reference pressure.

2.) "Reference Pressure"

The pressure adjustment takes place at the

entered ambient atmospheric pressure that is to be

entered in the field (e.g. 0.97 bar).

Activation of the "Refresh" button causes the

pressure and temperature display to be updated.

All offset corrections are set to zero when the

"Reset Offset" function is activated.

Fig. 9: Window for the adjustment of the

piezoresistive pressure sensors

Fig. 10: Window of the SCP GUI main menu

4665B_002-699e-06.14 Page 13

Piezoresistive Amplifier Type 4665B1, 4665B2

3. Integration of the SCP-CAN interface in third-party

systems for outputting the temperature values

A CAN interface can be used to obtain other

application system measurement values from the

SCP. The SCP system uses the CAN2 bus for the

transmission of the measurement values. The

physical interface of the SCP CAN connection

corresponds to the international standard ISO

11898.

3.1 CAN Bus Topology

The CAN network is set up as a linear structure.

The participants are referred to as nodes. All

nodes have equal rights. The nodes are connected

through a twisted two-wire line. The network re-

quires a terminating impedance of 120 Ω at both

ends.

The SCP racks contain no terminating impedance

for the CAN2 bus! This must be fitted externally.

3.2 Connection assignment of internal CAN2 interface

The CAN2 bus is available with the SCP racks

Type 2853 and 2854 via the internal interface

"Internal CAN".

CAN Nodes

CAN-H

CAN-L

CAN-H: CAN high Line

CAN-L: CAN low Line

RT: Terminating impedance 120 Ω

Page 14 4665B_002-699e-06.14

Integration of the SCP-CAN interface in third-party systems for outputting the temperature values

Plug Type: DSUB 9 m

Pin assignment "Internal CAN":

CAN2_H

CAN2_L

CAN_L

CAN_H

DGND

Internal use

The CAN2 bus is available with the SCP rack Type

2852 via the internal interface "Bus Out" or "Bus

In".

Plug Type: Harting 64 pin

Pin assignment "Bus Out":

Pin assignment "Bus In":

3.3 Transmission Rate

The transmission rate of the CAN2 network is

adjustable.

• Transmission rate (adjustable) kBit/s 100, 125,

250, 500,

1 000

• Maximum cable length m 40

3.4 Identifier

The object identifier designates the content of the

message. In the SCP system, the object identifier

can be assigned for every parameter (pMax,

temperature…). A recipient decides on the basis of

the amplifier whether the message is relevant for it

or not. When more than one Type 5064C or Type

4665B amplifier is used, the user must ensure that

DGND

CAN2_L

DGND

CAN2_H

DGND

CAN2_L

DGND

CAN2_H

4665B_002-699e-06.14 Page 15

Piezoresistive Amplifier Type 4665B1, 4665B2

each CAN identifier is used only once. The CAN

description file (*.dbc) is to be adjusted manually

for this purpose.

The object identifier can be adjusted separately for

each channel in the SCP SW in the adjustment

menu of the module.

Type 4665B:

• CAN-Identifier Format Bit 11

• CAN-Identifier adjustable range 0 … 2 047

3.5 Data Field

The data field can have a maximum of 8 bytes.

The number of bytes that are sent can be seen in

the DLC control field.

3.5.1 Data Field Temperature Output Type 4665B

Data field length: 6 bytes

Data

Field

Byte

Contents

Byte

Sequence

Data Type

Unit

Conversion Factor

1 … 2

Temperature

value

big endian

(Motorola)

signed Integer

°C

3 … 6

Time stamp

big endian

(Motorola)

unsigned long

Output Temperature

The output of the CAN message in the fixed

interval of 1 s.

The temperature value is measured via the jumper

resistance and corresponds to the value of the

analog temperature output.

The time stamp value corresponds to the time in

"ms" that corresponds to the work effort that is

activated via the digital input or a Type 5064C

module.

Page 16 4665B_002-699e-06.14

Integration of the SCP-CAN interface in third-party systems for outputting the temperature values

Example data field = 00 18 00 00 27 10

00 18 h = 24 d >>> Temperature

24 °C from the sensor

00 00 27 10 h = 10 000 d >>> 10 000 ms since

motor start

Example data field = FF FA 00 00 27 10

FF FAh = –6 d >>> Temperature -6

°C

from the sensor

00 00 27 10h = 10 000 d >>> 10 000 ms since

motor start (When

TEDS sensors are

used, the operating

hours counter can be

activated via the

amplifier types Type

5064B…, 5064C… or

via a digital trigger

signal.)

3.5.2 Test signal output

The output of the test signal takes place at fixed

intervals of 1 s. With this setting, the CAN mea-

surement can be put into operation without a ro-

tating motor.

The output value changes between 0 and 32 767.

The time stamp as the constant value 1 000.

Example of test signal output:

00 00 00 00 03 E8

7F FF 00 00 03 E8

00 00 00 00 03 E8

...

3.5.3 Activation of CAN output

The temperature value or the test signal can be

activated separately for each channel in the SCP

SW in the settings menu of the module.

Type 4665B:

4665B_002-699e-06.14 Page 17

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Kistler 4665B1 Owner's manual

Brand: Kistler

Model: 4665B1

Category: Multimeters

Type: Owner's manual

This manual is also suitable for

4665B2

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Kistler 4665B1 Owner's manual

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