Omega Products GP901-1 Installation Manual

Series 956

User’s Guide

http://www.omega.com

e-mail: [e-mail]

GP901 Series

Digital Probes

OMEGAnet® On-Line Service

http://www.omega.com

Internet e-mail

[e-mail]

Servicing North America:

USA: One Omega Drive, Box 4047

ISO 9001 Certied Stamford, CT 06907-0047
Tel: [phone] FAX: [phone]
e-mail: [e-mail]
Canada: 976 Bergar
Laval (Quebec) H7L 5A1
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-OMEGASM
Customer Service: 1-800-622-2378 / 1-800-622-BESTSM
Engineering Service: 1-800-872-9436 / 1-800-USA-WHENSM
TELEX: 996404 EASYLINK: 62968934 CABLE: OMEGA
Mexico and
Latin America: Tel: [phone] FAX: [phone]
En Espan˜ol: (95) 203-359-7803 e-mail: [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: ul. Rude armady 1868, 733 01 Karvina-Hranice
Tel: [phone] FAX: [phone]
Toll Free: 0800-1-66342 e-mail: [e-mail]
France: 9, rue Denis Papin, 78190 Trappes
Tel: [phone] FAX: [phone]
Toll Free in France: 0800-4-06342
e-mail: [e-mail]
Germany/Austria: Daimlerstrasse 26, D-75392 Deckenpfronn, Germany
Tel: [phone] FAX: [phone]
Toll Free in Germany: 0130 11 21 66
e-mail: [e-mail]
United Kingdom: One Omega Drive, River Bend Technology Centre
ISO 9002 Certied Northbank, Irlam, Manchester
M44 5EX, England
Tel: [phone] FAX: [phone]
Toll Free in the United Kingdom: 0800-488-488
e-mail: [e-mail]

It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that apply. OMEGA is constantly pursuing
certication of its products to the European New Approach Directives. OMEGA will add the CE mark to every appropriate device
upon certication.
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 specications without notice.

WARNING: These products are not designed for use in, and should not be used for, patient-connected applications.

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GP901 M-3343 05/08

Introduction

The Digital Probe is a gauging transducer combined with conditioning electronics in a permanently
connected ”smart connector” or PIE (Probe Interface Electronics).

The PIE converts and corrects the output from the gauge head and transmits the result in a digital format
using the Orbit protocol. Because the Digital Probe is factory calibrated using a reference Laser, the probe
has a very linear output with position.

The Digital Probe is one of an extensive range of Orbit Modules available for use with the Orbit
Measurement System, which provides an easy way to construct and maintain a complete measurement
system of up to 372 Orbit modules.

The Orbit protocol features an extensive set of commands that enable fast and efficient transmission of
data between the Orbit module and the PC.

Digital Probe Specifications

This section contains the specifications of the Digital Probe. There are two sections, the first are the
specifications for the complete Digital Probe (PIE + gauge head) and the second is mechanical data
relevant to the gauge head only.

PIE is designed to be primarily used with the T-CON connector. Full details of mounting with T-CON refer
to the section of PIE and T-CON installation.

Digital Probe Data

Performance Data
Basic Probe Type GP901-05 GP901-1 GP901-2 GP901-5 GP901-10 GP901-20
Calibrated Stroke mm 0.5 1 2 5 10 20
Full Mechanical Travel 0.58 1.5 3 (*2.5) 6 11 21

Resolution (14 bit over stroke) mm

0.03 0.061 0.122 0.305 0.610 1.22

Resolution (16 bit over stroke) N/A 0.015 0.03 0.076 0.152 0.305
Resolution (18 bit over stroke) N/A N/A N/A 0.019 0.038 0.076
Accuracy mm see Accuracy section below
Repeatability

<0.1 mm <0.15 mm
Reading Rate per Network channel 1000 readings / second minimum
Reading Rate (per PIE) 240 readings / second minimum (4 ms internal update)

in Normal Mode

Up to 3906 readings per second in dynamic (8 probes per network)

Calibration Temperature

Temperature Range

2061°C

0 to 60°C

Warm up Period 30 minutes

General Data

Supply Voltage

5 60.25Vdc
Current Consumption 0.06 A max.
PIE per Orbit channel 31 modules

3GP901 M-3343 05/08

Network type Orbit - RS485 2-wire multi-drop (up to 31 per channel)
Network speed 1.5Mbaud, 187.5k Baud or 9600 Baud (do not use 9600

Baud for New Applications as this will be phased out)

Network Control Character Break Character - low (space) of >90 us (187.5k Baud) or

>1.2mS (9600 Baud)

Command Character Format 1 start, 8 data, 1 odd parity, 1 stop bit

Accuracy

The error quoted assumes periodic re-setting against a setting master in accordance with normal gauging
practice (not less than once per day). As the Digital Probe may be used anywhere on its stroke the setting
master itself must be of known dimensions, but does not need to be precisely on its nominal value. The error
quoted for the Digital Probe therefore includes a factor dependant on the distance between the setting master
and the component being gauged.

Where D = difference in mm between setting master and component.

Error at calibration temperature: -

0.5 mm Probes i.e. GP901-05-S 6 0.05 mm 6 0.2% x D
1 mm Probes i.e. GP901-1-S 6 0.1 mm 6 0.1% x D
2 mm Probes i.e. GP901-2-S, GP901-2-P 6 0.1 mm 6 0.1% x D
5 mm Probes i.e. GP901-5-S, GP901-5-P 6 0.1 mm 6 0.2% x D
10 mm Probes i.e. GP901-10-S, GP901-10-P 6 0.1 mm 6 0.2% x D
20 mm Probes i.e. GP901-20-S, GP901-20-P 6 0.1 mm 6 0.2% x D

Gauge Head Specications

Specications Common to All Gauge Head Types

Body Material Stainless Steel 400 Series
Probe tips various types available
Non-repeat <0.15 mm
Max. Angular Rotation of Tip 2°
Gaiter Material Viton®
Max. Probe tip tightening Torque 0.22 Nm – M2.5 Thread
(when changing tip please take care not to damage probe) 0.12 Nm – M2 Thread
Storage Temperature Range -20°C to +100°C
Operating Temperature +5°C to +80°C
Environmental Protection (see mounting notes) IP 65 (with gaiter)
Cable Standard (not all types) 2m screened, PUR, insulation
Option (not all types) Standard cable with stainless steel or plastic braid

Pneumatic Operation (Not GP901-05 version)

Minimum operating pressure With Gaiter
(bar) Without Gaiter

Maximum operating pressure With Gaiter
(bar) Without Gaiter

Air leak rate ml/min. at 1.0 bar With Gaiter
Without Gaiter

0.4

0.3

1.0

2.0

<10

<150

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GP901 M-3343 05/08