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GAS-CADA
vemm tec
Installation, Operation, and Maintenance Manual (IOM)
CONTENTS
1
LIST OF TERMS AND SYMBOLS ........................................................................................................ 5
2
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.8.1
2.8.2
2.9
2.10
2.10.1
2.10.2
2.11
2.11.1
2.11.2
2.11.3
2.11.4
2.11.5
2.11.6
2.11.7
2.12
2.12.1
2.12.2
2.12.3
2.12.4
2.13
2.14
2.14.1
2.14.2
2.15
2.15.1
2.15.2
2.15.3
2.15.4
2.16
INTRODUCTION................................................................................................................................... 6
Dear customer....................................................................................................................................... 6
Notice .................................................................................................................................................... 6
Brief description..................................................................................................................................... 6
Parts and documents supplied with the GAS-CADA............................................................................. 8
Instructions for storage and conservation ............................................................................................. 9
Principle of operation: Calculation of the gas conversion factor C........................................................ 9
Volume under error conditions ............................................................................................................ 10
Mechanical design............................................................................................................................... 11
Protection against electromagnetic interference - EMC and EMI........................................... 11
Explosion-proof design: „i“ variant and „i/n“ variant ................................................................ 12
Block diagram of the device ................................................................................................................ 12
Keyboard and display .......................................................................................................................... 13
Display characteristics............................................................................................................ 13
Description of individual keys ................................................................................................. 13
System menu ...................................................................................................................................... 13
Basic menu............................................................................................................................. 15
Actual values .......................................................................................................................... 15
Saved values .......................................................................................................................... 15
Device parameters ................................................................................................................. 15
System data............................................................................................................................ 16
Diagnostics ............................................................................................................................. 16
Error messages ...................................................................................................................... 16
Parameters.......................................................................................................................................... 17
Analog values ......................................................................................................................... 17
Digital inputs ........................................................................................................................... 17
Digital outputs......................................................................................................................... 18
Digits on the display................................................................................................................ 18
Data archives ...................................................................................................................................... 18
Communication with a master system ................................................................................................ 20
Communication with a modem controlled by AT commands ................................................. 20
Communication with GSM and GPRS modems..................................................................... 20
Protection against changes of metrological parameters ..................................................................... 20
Protection realized by switches .............................................................................................. 20
Password system and access levels ...................................................................................... 21
Saving changes into the setting archive ................................................................................. 21
Device identification and official seals .................................................................................... 22
Extending the device with additional transmitters and modules.......................................................... 23
3
3.1
3.1.1
3.1.2
3.2
SOFTWARE........................................................................................................................................ 24
Firmware ............................................................................................................................................. 24
Additional firmware options .................................................................................................... 24
Updating firmware .................................................................................................................. 24
Factory settings ................................................................................................................................... 24
Page 2
GAS-CADA_IOM_07.doc
IOM / January 2007