Teledyne 100AH 10.3.2 Voltage/Frequency (V/F) Board

Teledyne API Model 100AH SO2 Analyzer Instruction Manual, 02417, Rev. D

10.3.2 Voltage/Frequency (V/F) Board

The V/F Board consists of 16 analog input channels, each software addressable; 8 digital inputs,

and 24 digital outputs, each line independently addressable; and 4 independent analog output

channels. The analog input channels are connected to V/F converter capable of 80,000 counts,

which is approximately 16 bit resolution. The integration period is software selectable from

40msec to 2.4 sec. Commands from the SBC40 computer and digitized values from the V/F

section of the board are sent via the STD bus interface. The schematic for the board is in the

Appendix 00514.

The overall operation of this board is quite complex. To fully check out all of its operational

modes in the field is not recommended. Therefore, a few of simple tests are described here that

test one analog input channel, the 4 analog output channels, one digital input, and one digital

output.

1. V/F board analog input test.

Each analog channel is routed through a programmable 16 channel multiplexer. If one

channel works, chances are they all work.

A. Turn on instrument.

B. Press TEST key on front panel keyboard until DCPS test is displayed.

C. The value displayed should read 2500 ± 100 mV

If the M100AH passes this test, it has successfully digitized a 2500 mV composite voltage

output from the Power Supply Module. The signal should also be quiet ± 25 mV.

2. Analog output channel test.

In the DIAGNOSTIC menu on the front panel, there is a test that outputs a step voltage to the 4

analog outputs. This test is useful for calibrating chart recorders and dataloggers attached to the

M100AH. The test can also be useful in diagnosing faults in the V/F board.

A. Turn on the instrument.

B. Enter the SETUP-MORE-DIAG menu.

C. Scroll to select the ANALOG OUTPUT test. This causes the M100AH to output a 5 step

voltage pattern to the 4 analog outputs on the rear panel. The status of the test is shown on

the front panel display. The scrolling can be stopped at any voltage by pressing the key

below the changing percentage display. The values are 0-20-40-60-80-100% of whatever

voltage range has been selected. For example the voltages would be 0, 1, 2, 3, 4, 5 V if the

5 V range had been selected.

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Contents

Main INSTRUCTION MANUAL MODEL 100AH SULFUR DIOXIDE ANALYZER HIGH LEVEL SAFETY MESSAGES TABLE OF CONTENTS 3 SPECIFICATIONS, AGENCY APPROVALS, WARRANTY ........................3-1 4 THE M100AH SO2 ANALYZER ................................................................... 4-1 6 OPTIONAL HARDWARE AND SOFTWARE............................................... 6-1 8 CALIBRATION AND ZERO/SPAN CHECKS ..............................................8-1 10 DIAGNOSTIC, TROUBLESHOOTING..................................................... 10-1 11 M100AH SPARE PARTS LIST ................................................................ 11-1 LIST OF FIGURES Teledyne API Model 100AH SO2 Analyzer Instruction Manual, 02417, Rev. D LIST OF TABLES viii Page Page 1 HOW TO USE THIS MANUAL Page 2 GETTING STARTED 2.1 Installation 2.2 Electrical and Pneumatic Connections Page Page Page Page 2.3 Initial Operation Page Step 3 - Review the quality of the calibration: Calibration Quality Check Procedure Step 4 - The M100AH is now ready to measure sample gas. 2-9 Page Page 2-12 PROM # Serial # Date Technician 2-13 Page Teledyne API Model 100AH SO2 Analyzer Instruction Manual, 02417, Rev. D 3 SPECIFICATIONS, AGENCY APPROVALS, WARRANTY 3-1 3.1 Specifications 3.2 Warranty Page Page 4 THE M100AH SO2 ANALYZER 4.1 Principle of Operation ()() [] Page 4.2 Instrument Description 4.2.1 Sensor Module, Reaction Cell, Detector 4.2.2 Pneumatic Sensor Board 4.2.3 Computer Hardware and Software 4.2.4 V/F Board 4.2.5 Front Panel 4-5 Page 4.2.6 Power Supply Module 4.2.7 Pneumatic System 4.3 I/O Hardware Interface 4.3.1 RS-232 Interface Page Page 4.3.2 Status Output Interface Page 4.3.3 Contact Closure Control Input Interface Page 5 SOFTWARE FEATURES 5.1 Index To Front Panel Menus Page Teledyne API Model 100AH SO2 Analyzer Instruction Manual, 02417, Rev. D 5.1.1 Sample Menu 5-3 Table 5-1: M100AH Sample Menu Structure Teledyne API Model 100AH SO2 Analyzer Instruction Manual, 02417, Rev. D 5.1.2 Set-Up Menu 5-4 Table 5-2: M100AH Setup Menu Structure 5-5 5-6 5.2 Sample Mode 5.2.1 Test Functions Page Page 5.2.2 CAL, CALS, CALZ, Calibration Functions Page 5.3 Set-Up Mode 5.3.1 Configuration Information (CFG) 5.3.2 Automatic Calibration (AutoCal) 5.3.3 Data Acquisition System (DAS) Page Page 5.3.4 Range Menu Page Page 5.3.5 Password Enable 5.3.6 Time of Day Clock 5.3.7 Diagnostic Mode 5.3.8 Communications Menu 5.3.9 Variables Menu (VARS) Page 6 OPTIONAL HARDWARE AND SOFTWARE 6.1 Rack Mount Options 6.2 Zero/Span Valves 6.3 Autocal - Setup Zero/Span Valves Page Page Page 6.4 4-20 mA, Isolated Current Loop Output 7 RS-232 INTERFACE 7.1 Setting Up the RS-232 Interface 7.1.1 Setup from the Front Panel 7.1.2 Security Feature 7.1.3 Protocol of Port Communication 7.1.4 Entering Commands in Terminal Mode 7.2 Command Summary 7-6 Page Teledyne API Model 100AH SO2 Analyzer Instruction Manual, 02417, Rev. D 7.3 TEST Commands and Messages 7-8 Table 7-7: RS-232 Test Messages 7.4 WARNING Commands and Messages Page 7.5 CALIBRATION Commands and Messages Page 7.6 DIAGNOSTIC Commands and Messages 7.7 DAS Commands and Reports Page 7.8 VARIABLES Commands and Messages Page Page Teledyne API Model 100AH SO2 Analyzer Instruction Manual, 02417, Rev. D 8 CALIBRATION AND ZERO/SPAN CHECKS 8-1 Page 8.1 Manual Zero/Span Check or Calibration Through the Sample Port Page 8.2 Manual Zero/Span Check or Calibration with Zero/Span Valves Option 8.3 Automatic Zero/Span Check 8.4 Dynamic Zero/Span Calibration 8.5 Use of Zero/Span Valves with Remote Contact Closure 8.6 Special Calibration Requirements for Dual Range or Auto Range 8.7 Calibration Quality 8.8 Calibration Gases Page 9 MAINTENANCE 9.1 Maintenance Schedule 9.2 Replacing the Sample Particulate Filter Page 9.3 Replacing the Pump Scrubber 9.4 Cleaning Orifice and Orifice Filter 9.5 Cleaning the Reaction Cell 9.6 Pneumatic Line Inspection Page Page 9.7 Leak Check Procedure 9.8 Light Leak Check Procedure 9.9 EPROM Replacement Procedure 10 DIAGNOSTIC, TROUBLESHOOTING Page 10.1 Operation Verification - M100AH Diagnostic Techniques 10.1.1 Fault Diagnosis with TEST Variables (table continued) 10-4 (table continued) 10-5 (table continued) 10-6 (table continued) 10-7 10-8 10.1.2 Fault Diagnosis with WARNING Messages 10-10 10.1.3 Fault Diagnosis using DIAGNOSTIC Mode 10-12 (table continued) 10-13 (table continued) 10-14 (table continued) 10-15 Page Page 10.1.4 M100AH Internal Variables 10-19 10.1.5 Test Channel Analog Output 10.1.6 Factory Calibration Procedure (Quick Cal) Page 10.2 Performance Problems 10.2.1 AC Power Check 10.2.2 Flow Check 10.2.3 No Response to Sample Gas 10.2.4 Negative Concentration Display 10.2.5 Excessive Noise 10.2.6 Unstable Span 10.2.7 Unstable Zero 10.2.8 Inability to Span 10.2.9 Inability to Zero 10.2.10 Non-Linear Response 10.2.11 Slow Response 10.2.12 Analog Output Doesn't Agree with Display Concentration 10.3 Electronic Subsystem Troubleshooting and Adjustments 10.3.1 Computer, Display, Keyboard Page Page Page 10.3.2 Voltage/Frequency (V/F) Board Page Page Page Page 10.3.3 Status/Temp Board Page Page Teledyne API Model 100AH SO2 Analyzer Instruction Manual, 02417, Rev. D 10.3.4 Power Supply Module 10-41 Page Page Page 10.3.5 Flow/Pressure Sensor Page Page Page 10.3.6 Reaction Cell Temp 10.3.7 Preamp Board 10.3.8 PMT Cooler Page 10.3.9 HVPS (High Voltage Power Supply) Page 10.4 Optical Sensor Module Troubleshooting 10.4.1 PMT 10.4.2 UV Lamp Adjust or Replacement Page 10.5 Pneumatic System Troubleshooting 10.5.1 Leak Check 10.5.2 Pump 10.5.3 Z/S Valves 11 M100AH SPARE PARTS LIST 11-2 11.1 Model 100AH Level 1 Spares Kit Page Teledyne API Model 100AH SO2 Analyzer Instruction Manual, 02417, Rev. D APPENDIX A MAINTENANCE SCHEDULE FOR M100AH A-1 Page Teledyne API Model 100AH SO2 Analyzer Instruction Manual, 02417, Rev. D APPENDIX B ELECTRICAL SCHEMATICS B-1