Omega Products LD610 Installation Manual

LD610 Series

B.I.C.M.
Displacement Transducers
With In-Line Signal
Conditioners

omega.com

e-mail: [e-mail]

For latest product manuals:

omegamanual.info

User’s Guide

Shop online at

Servicing North America:

USA:

One Omega Drive, Box 4047

ISO 9001 Certified

Stamford CT 06907-0047
Tel: [phone] FAX: [phone]
e-mail: [e-mail]

Canada:

976 Bergar
Laval (Quebec) H7L 5A1, Canada
Tel: [phone] FAX: [phone]
e-mail: [e-mail]

For immediate technical or application assistance:

USA and Canada:

Sales Service: 1-800-826-6342 / 1-800-TC-OMEGA

®

Customer Service: 1-800-622-2378 / 1-800-622-BEST

®

Engineering Service: 1-800-872-9436 / 1-800-USA-WHEN

®

TELEX: 996404 EASYLINK: 62968934 CABLE: OMEGA

Mexico:

En Espan˜ ol: [phone]-7803 e-mail: [e-mail]
FAX: [phone] [e-mail]

Servicing Europe:

Benelux:

Postbus 8034, 1180 LA Amstelveen, The Netherlands
Tel: [phone] FAX: [phone]
Toll Free in Benelux: 0800 0993344
e-mail: [e-mail]

Czech Republic:

Frystatska 184, 733 01 Karvina´, Czech Republic
Tel: [phone] FAX: [phone]
Toll Free: 0800-1-66342 e-mail: [e-mail]

France:

11, rue Jacques Cartier, 78280 Guyancourt, France
Tel: [phone] FAX: [phone]
Toll Free in France: 0800 466 342
e-mail: [e-mail]

Germany/Austria:

Daimlerstrasse 26, D-75392 Deckenpfronn, Germany
Tel: [phone] FAX: [phone]
Toll Free in Germany: 0800 639 7678
e-mail: [e-mail]

United Kingdom:

One Omega Drive, River Bend Technology Centre

ISO 9002 Certified

Northbank, Irlam, Manchester
M44 5BD United Kingdom
Tel: [phone] FAX: [phone]
Toll Free in United Kingdom: 0800-488-488
e-mail: [e-mail]

OMEGAnet®Online Service Internet e-mail

www.omega.com [e-mail]

It is the policy of OMEGA to comply with all worldwide saf ety and EMC/EMI regulations that
apply. OMEGA is constantly pursuing certification of its p roducts to the European New Approach
Directives. OMEGA will add the CE mark to every appropriat e device upon certification.

The information contained in this document is believed to be correct, but OMEGA Engineering, Inc. accepts
no liability for any errors it contains, and reserves the right to alter specifications without notice.
WARNING: These produc ts are not designed for u se in, and should not be used for, human applicati ons.

LD610

M-3342 08/09

Index

Section Title Page

Index . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.0 Introduct ion . . . . . . . . . . . . . . . . . 2

2.0 Technical Specification . . . . . . . . . . . . . . . 3

3.0 Operational and Set-Up G uide - BI CM Kit . . . 6

3.1 Introduction . . . . . . . . . . . . . . . . . . . . . . 6

3.2 Screen Connection . . . . . . . . . . . . . . . . . 8

3.3 Gain Adjustment . . . . . . . . . . . . . . . . . . . 10

3.4 Offset . . . . . . . . . . . . . . . . . . . . . . . . 10

3.5 Set Up Using Fixed Value Resistors . . . . . 11

3.6 Gain Set Up Procedure . . . . . . . . . 13

3.7 Offset Set Up Procedure . . . . . . . . . 14

4.0 The Case . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.0 The "Why Doesn 't it Work Guide" . . . . . . 17

6.0 Application Notes . . . . . . . . . . . . . . . . . . . . 18

6.1 Transducer Installation . . . . . . . . . . . . . . . . 18

6.2 Example 1 . . . . . . . . . . . . . . . . . . . . . 22

6.3 Example 2 . . . . . . . . . . . . . . . . . . . . . 23

1

M-3342 08/09

LD610

1.0: Introduction & Glossary

The Boxed Inline Conditioning Module (BICM) is an electronics module that may be used with a wide range of LVDT transducers. Layout and size are
designed to allow the BICM to be easily fitted inline with the transducer cable and installed with the minimum of effort (or changed if ready connected to a
transducer)

The BICM output may be set for a full scale range up to ±10 VDC, offset facilities are provided. The BICM is either powered from a bipolar ±15 VDC supply
or a unipolar ±24 VDC supply depending on product type.

BICM - Boxed Inline Conditioning Unit

Gain - The output voltage per mm of transducer stroke

Offset - The output voltage when the transducer core is at null

P.C.B. - Printed Circuit Board

NPV - Nearest Preferred Value. A resistor selected from a standard range of value
(E24, E48, etc.) that is closest to the required value

BICM kits are supplied for user connection to an LVDT transducer.

2

1.0: Introduction

M-3342 08/09

LD610

Standard BICM IP67 BICM

Bipolar Supply Unipolar Supply Bipolar Supply

Power Requirement

Voltage ±15 V ±1.5 V 24 V ±2.4 V ±15 V ±1.5 V

Current

±15 mA nominal

30 mA nominal ±15 mA nominal

Transducer Excitation

Primary Voltage 2 Vrms nominal

Primary Frequency

1

5 kHz typical

Primary Current 10 mA nominal

Signal Input

Input Voltage Range Up to 2.5 Vrms

Input Load Resistance 100 kW

3

2.0: Technical Specication

M-3342 08/09

4

LD610

Standard BICM IP67 BICM

Bipolar Supply Unipolar Supply Bipolar Supply

Signal Output

Voltage Output Up to ±10 V

Current Output 11 mA

Output Ripple <14 mVrms

Output Offset 100%

Temp Co. Gain <0.03% FRO / oC

Temp. Co. Offset <0.025% FRO / oC

Warm up Time 15 minutes recommended

Linearity 2 (electronics only) <0.1% FRO

Bandwidth (-3 dB)

3

250 Hz typical

1

Other frequencies are available on request.

2

The electronics has a specification of <0.1%, the overall linearity is dominated by the transducer.

3

Other bandwidths available on request.

4

2.0: Technical Specication

M-3342 08/09

5

LD610

Standard BICM IP67 BICM

Bipolar Supply Unipolar Supply Bipolar Supply

Environmental

Operation Temperature Range 0 - 70 oC

Storage Temperature Range -20 to +85 oC

IP Rating IP40 IP67

Mechanical and Connections

Connections Solder pad or factory fit Factory fit only

Enclosure Size 98.5 x 30.5 x 13.0 mm 73.0 x 20.6 mm

Weight 30 g 75 g

Material ABS 400 Series Stainless Steel

Cable Lengths

All specification limits assume a nominal 3 m cable length between transducer and BICM. The BICM can be mounted up to 10 m from the transducer, but
this may result in reduced performance. Not all transducers can cope with long cable lengths. Cable from the BICM to the processing unit or display should
be limited to 100 m.

5

2.0: Technical Specication

M-3342 08/09

LD610

3.1: Introduction

The BICM kit is supplied with a selection of potentiometers and an output cable allowing users to connect LVDT sensors and set up to their own
requirements. Connections are made to the BICM PCB as shown in Fig. 3.1A or Fig. 3.1B below depending on the PCB version.

The BICM output is adjustable for GAIN and OFFSET. See the specification for range of adjustments possible.

Gain is sometimes called span or range. This control will affect the output voltage at the full transducer stroke. Adjusting the control clockwise will increase
the output.

Offset is sometimes called DC shift or zero shift. This control may be used to zero the output if mechanically nulling the transducer is not convenient or
can provide as much as 100% offset to enable the output to be unipolar ie. 0V to 10 V for full transducer stroke. Adjusting the control clockwise will make
output more negative.

Adjustment is by means of trimmer potentiometers (also called variable resistor or pots). The BICM will accept fixed value resistors in place of
potentiometers.

The BICM is designed to accept the following types of potentiometer or resistor:-

Potentiometer - Standard 3/8in square top adjust type potentiometer, see Fig. 3.1 (ie. Bourns 3299 type). The BICM kit comes complete with four
potentiometers.

Resistors - 1/4W MRF4 style.

6

3.0: Operational and Set-Up Guide - BICM Kit

M-3342 08/09

LD610

Fig. 3.1A Connections to PCB - 105186 (Bipolar or Unipolar)

Fig. 3.1B Connections to PCB - 103766 (Bipolar only)

7

3.0: Operational and Set-Up Guide - BICM Kit

Yellow

SEC2

SEC1

Green

White

Screen

Primary

Blue

Red

I/O CONNECTIONS

PRI1

PRI2

Screen

VOUT

0V

-15 V
0V

+15 V

Power

Supply

Output

Signal

SEC2

SEC1

Green

White

Screen

Primary

Blue

Red

TRANSDUCER CONNECTIONS

I/O CONNECTIONS

PRI1

PRI2

Screen

VOUT

0V

-15 V
0V

+15 V

Power

Supply

Output

Signal

Yellow

White

Green

Blue

Red

0V (Signal

white

)

Secondary 2 Green

0V Supply

Green

+15 V Bipolar
+24 V Unipolar
Red

Vout Yellow

Gain Offset

R2

+R4

R3

-R4

RV2RV1

R2

R1

Secondary 1 White

Primary Exc 2 Red

Primary Exc1 Blue

-15V Bipolar only
Blue

Screen