Teledyne BDS-3960 1.5 Rear Panel (Equipment Interface)

Introduction BDS 3960

Teledyne Analytical Instruments 16

Access Drawer: For access t o the BDS S ensor And pr essur e regul ator.

T he f ront panel sli des out when the four thumb screws ar e loosened.

Openi ng the int er ior gives access to most ci rcui t boards t oo.

1.5 Rear Panel (Equipment Interface)

The rear panel, shown in Figure 1-2, contains the gas and electrical

connectors for external inlets and outlets. The connectors are described

briefly here and in detail in Chapter 3 Installation. Except for gas, AC

power, and RS-232 communications I/O, all user connections for analog

output, alarms, calibration and remote probe contacts are available

through the 50 pin equipment interface connector. User connections

made at the rear panel include:

•Power Connection 110 VAC power source (220 VAC

optional.

•Gas Inlet and Outlet One inlet and one exhaust out.

• Moisture By-pass Additional vent line for condensate

•Analog Outputs 0–1 VDC oxygen concentr ation plus

0-1 VDC r ange I D, and isolated

4–20 mA DC oxygen concentr ation

plus 4-20 mA DC range ID.

•Alarm Connections 2 concentration alarms and 1

system alarm.

•Remote Probe Used in the BDS 3960 for

controlling external solenoid

valves only.

•Remote Span/Zero Digital inputs allow external

control of analyzer calibration.

•Calibration Contact To notify external equipment that

instrument is being calibrated and

readings are not monitoring

sample.•

Range ID Contacts Four separate, dedicated, range

relay contacts. Low, Medium,

High, Cal.

Contents

Main BDS 3960 Teledyne Analytical Instruments ii Copyright 2002 Teledyne Analytical Instruments Specific Model Information Safety Messages Page Table of Contents Page Page List of Figures Page List of Tables DANGER COMBUSTIBLE GAS USAGE WARNING Introduction 1.1 Overview 1.2 Typical Applications 1.3 Main Features of the Analyzer 1.4 Front Panel (Operator Interface) Page 1.5 Rear Panel (Equipment Interface) Page Operational Theory 2.1 Introduction 2.2 BDS Sensor 2.2.1 Principles of Operation Page Page 2.2.2 Gas Flow Rate 2.2.3 Gas Pressure 2.2.4 Temperature effect 2.2.5 Recovery from High Level Oxygen Exposure 2.2.6 Background Gas Compatibility 2.2.7 Stability 2.2.8 Maintenance 2.3 Sample System 2.4 Electronics and Signal Processing Page Page Page Installation 3.1 Unpacking the Analyzer 3.2 Mounting the Analyzer Page 3.3 Rear Panel Connections 3.3.1 Gas Connections 3.3.2 Electrical Connections 3.3.2.1 PRIMARY INPUT POWER 3.3.2.2 50-PIN EQUIPMENT INTERFACE CONNECTOR Page Page Page Page 3.4 Electrolyte Refill of BDS Sensor 3.5 Testing the System 3.6 Powering Up the System Operation 4.1 Introduction 4.2 The Analyzer application 4.3 The System Screen 4.3.1 Communication Information and Calibration Parameters 4.3.2 Setting Software Parameters: Filter, Gas Factor, Tmp. Coeff. 4.3.2.1 THE DIGITAL FILTER 4.3.2.2 The Gas Factor 4.3.2.3 T EMPERATURE C 4.3.2.4 S ET D 4.4 Calibration of the Analyzer 4.4.1 Zero Cal 4.4.1.1 Z ERO F 4.4.2 Span Cal 4.4.2.1 S PAN F 4.5 The Alarms Function Page 4.6 The Range Function 4.6.1 Setting the Analog Output Ranges Page 4.6.2 Fixed Range Analysis 4.8 Signal Output 4.9 Switching The Program Back To The Front Page Maintenance 5.1 Routine Maintenance 5.2 Adding Water to the BDS Sensor 5.3 Fuse Replacement 5.4 Battery Backup Replacement 5.5 Reinstalling Application software to PPC. 5.5 Major Internal Components 5.6 Cleaning 5.7 Troubleshooting Page Page Page Appendix A-1 Specifications Page A-2 Recommended 2-Year Spare Parts List Page A-5 Application notes Material Safety Data Sheet Teledyne Analytical Instruments 72 Section III -Physical Hazards Section IV - Health Hazard Data Oxygen Analyzer Appendix Teledyne Analytical Instruments 73 Section V - Emergency and First Aid Procedures Section VI - Handling Information Index Oxygen Analyzer Index Teledyne Analytical Instruments 75