401-405 SERIES - vii -
Table of Contents
GENERAL INFORMATION.....................................................................................................................................1
1. GENERAL INFORMATION ....................................................................................................................................1
1.1. OVERVIEW......................................................................................................................................................1
1.1.1. 400 Series Family ..................................................................................................................................1
1.1.2. 400 Series Meters ..................................................................................................................................1
1.1.3. Measurement Approach.........................................................................................................................1
1.1.4. Additional Functions..............................................................................................................................1
1.2. SPECIFICATIONS .............................................................................................................................................2
INSTALLATION.........................................................................................................................................................4
2. INSTALLATION....................................................................................................................................................4
2.1. RECEIVING INSPECTION..................................................................................................................................4
2.2. ENVIRONMENTAL AND GAS REQUIREMENTS..................................................................................................4
2.3. MECHANICAL CONNECTIONS .........................................................................................................................4
2.4. MOUNTING THE ELECTRONICS REMOTELY.....................................................................................................5
2.5. ELECTRICAL CONNECTION .............................................................................................................................5
2.5.1. Power Supply.........................................................................................................................................6
2.5.2. Analog Output........................................................................................................................................6
2.5.2.1. Current Loop Output .........................................................................................................................6
2.5.2.2. Voltage output....................................................................................................................................9
2.6. DIGITAL CONNECTION....................................................................................................................................9
2.7. DIGITAL CONFIGURATION ..............................................................................................................................9
2.7.1. RS-232 ...................................................................................................................................................9
2.7.2. RS-485 .................................................................................................................................................10
2.7.3. Ethernet ...............................................................................................................................................10
2.8. ALARM OUTPUT CONNECTION .....................................................................................................................10
2.9. AUXILIARY INPUT CONNECTION ..................................................................................................................11
2.10. ROTARY GAS SELECTOR...........................................................................................................................12
2.11. ELECTRICAL REMOTE ZERO CONNECTION ...............................................................................................13
2.12. CHECK INSTALLATION PRIOR TO OPERATION...........................................................................................13
OPERATION.............................................................................................................................................................15
3. OPERATION ......................................................................................................................................................15
3.1. ENVIRONMENTAL AND GAS CONDITIONS.....................................................................................................15
3.2. INTERPRETING THE ANALOG OUTPUT ..........................................................................................................15
3.3. DIGITAL COMMUNICATIONS.........................................................................................................................15
3.3.1. Digitally Reported Flow Output ..........................................................................................................16
3.3.2. Digitally Reported Analog Input..........................................................................................................16
3.4. ZEROING THE INSTRUMENT..........................................................................................................................16
3.4.1. Preparing for a Zero Check.................................................................................................................16
3.4.2. Adjusting Zero .....................................................................................................................................17
3.5. OVER-RANGE................................................................................................................................................17
3.6. REVERSE FLOW ............................................................................................................................................18
3.7. HIGH PRESSURE OPERATION ........................................................................................................................18
3.7.1. Zero Shift .............................................................................................................................................19
3.7.2. Span Shift.............................................................................................................................................19
3.8. WARNINGS/ALARMS ....................................................................................................................................19
3.9. MULTI-GAS CALIBRATIONS..........................................................................................................................19
3.10. FLOW TOTALIZATION ...............................................................................................................................20
3.11. ADDITIONAL DIGITAL CAPABILITIES........................................................................................................20
PARTS AND ACCESSORIES .................................................................................................................................21
4. PARTS & ACCESSORIES.....................................................................................................................................21
4.1. POWER POD – POWER & DISPLAY UNITS......................................................................................................21
4.2. FITTINGS.......................................................................................................................................................22
4.3. CABLES ........................................................................................................................................................22
WARRANTY.............................................................................................................................................................23
