Teledyne 3020T 3-7

Trace Oxygen Analyzer Installation 3

3-7

Teledyne Analytical Instruments

Figure 3-6: Types of Relay Contacts

The connectors are:

Threshold Alarm 1: • Can be configured as high (actuates when concen-

tration is above threshold), or low (actuates when

concentration is below threshold).

• Can be configured as failsafe or nonfailsafe.

• Can be configured as latching or nonlatching.

• Can be configured out (defeated).

Threshold Alarm 2: • Can be configured as high (actuates when concen-

tration is above threshold), or low (actuates when

concentration is below threshold).

• Can be configured as failsafe or nonfailsafe.

• Can be configured as latching or nonlatching.

• Can be configured out (defeated).

System Alarm: Actuates when DC power supplied to circuits is

unacceptable in one or more parameters. Permanently

configured as failsafe and latching. Cannot be de-

feated. Actuates if self test fails.

To reset a System Alarm during installation, discon-

nect power to the instrument and then reconnect it.

Further detail can be found in chapter 4, section 4-5.

3.3.5 Digital Remote Cal Inputs

Remote Zero and Span Inputs: The REMOTE SPAN and RE-

MOTE ZERO inputs are on the DIGITAL INPUT terminal block. They

accept 0 V (OFF) or 24 V dc (ON) for remote control of calibration. (See

Remote Calibration Protocol below.)

Contents

Main i Teledyne Analytical Instruments OPERATING INSTRUCTIONS FOR Model 3020T Trace Oxygen Analyzer DANGER ii Model 3020T Teledyne Analytical Instruments Copyright 1999 Teledyne Analytical Instruments iii iv Model 3020T v Analysis Mode ........................................................ Page Introduction 1-2 1 Introduction Model 3020T 1.4 Model Designations Page 1-4 1 Introduction Model 3020T Analyze WARNING: THE POWER CABLE MUST BE DISCONNECTED TO FULLY REMOVE POWER FROM THE INSTRUMENT. 1-5 Trace Oxygen Analyzer Introduction 1 1.6 Recognizing Difference Between LCD & VFD 1.7 Equipment Interface CAUTION: The power cable must be disconnected to fully remove power from the instrument. Page 1-7 Trace Oxygen Analyzer Introduction 1 Page 2-1 Trace Oxygen Analyzer Operational Theory 2 Operational Theory 2.1 Introduction 2.2 Micro-Fuel Cell Sensor 2-2 2-3 Trace Oxygen Analyzer Operational Theory 2 2-4 Page 2-6 2 Operational Theory Model 3020T 2.4 Electronics and Signal Processing Page 2-8 2.5 Temperature Control 3-1 Installation 3.1 Unpacking the Analyzer 3.2 Mounting the Analyzer Page Page 3-4 3-5 3-6 3-7 3 Installation Model 3020T Zero Span Zero 3-8 3-9 3-10 3-11 3.4 Installing the Micro-Fuel Cell 3-12 3.5 Gas Connections 3-13 3-14 3.6 Testing the System 4-1 Operation 4.1 Introduction 4.2 Using the Controls 4-2 4-3 4-4 4-5 4.3 The AUTO-CAL Function ON 4.4 The PWD (Password) Function 4-6 4-7 4-8 4.5 The LOGOUT Function 4.6 The VERSION Screen 4-9 4.7 The SELF-TEST Function 4.8 The ZERO and SPAN Functions 4-10 4-11 4-12 4-13 4-14 4.9 The ALARMS Function 4-15 4-16 4.10 The RANGE Function 4-17 4-18 4.11 The CONTRAST Function 4.12 The STANDBY Function 4-19 4.13 The Analysis Mode Page 5-1 Maintenance 5.1 Routine Maintenance WARNING: SEE WARNINGS ON TITLE PAGE OF THIS MANUAL. 5.2 Major Internal Components Page 5-3 5-4 Page 5-6 5-7 5.4 Fuse Replacement 5-8 5.5 System Self Diagnostic Test 5-9 Page A-1 Appendix A-1 Specifications A-2 Appendix Model 3020T A-3 A-2 Recommended 2-Year Spare Parts List Page A-5 3000 SERIES ANALYZERS A-4 A-6 Appendix Model 3020T A-7