Instruction manual

NGA 2000 MLT Hardware
CONTENTS
IV
Emerson Process Management GmbH & Co. OHG
Instruction Manual
90002929
07/2006
6. Switching On .................................................................................. 6 - 1
7. Measurement / Calibration / Switching Off .................................. 7 - 1
7.1 Measurement ................................................................................... 7 - 1
7.2 Calibration ........................................................................................ 7 - 2
7.2.1 Test Gases .................................................................................... 7 - 3
7.2.1.1 Zero Gas ...................................................................................... 7 - 3
7.2.1.2 Span Gas ..................................................................................... 7 - 3
7.3 Switching Off .................................................................................... 7 - 4
8.
- (vacant)
9.
TROUBLESHOOTING
10. Troubleshooting ........................................................................... 10 - 1
10.1 Instrument has no function (LCD display is dark) ........................... 10 - 1
10.2 No / Incorrect Measurement Screen............................................... 10 - 2
10.3 Display Messages .......................................................................... 10 - 3
10.3.1 Chopper Fail ................................................................................ 10 - 3
10.3.2 Raw Signal Too High / Low.......................................................... 10 - 3
10.3.3 Detector signal communication failed .......................................... 10 - 4
10.3.4 Light source ................................................................................. 10 - 4
10.3.5 Detector ....................................................................................... 10 - 4
10.3.6 Heater Unit Regulation................................................................. 10 - 5
10.3.7 Temperature Measurement ......................................................... 10 - 5
10.3.8 Invalid Pressure Measurement .................................................... 10 - 5
10.3.9 External Input............................................................................... 10 - 6
10.4 No or incorrect Analog Outputs / Digital I/O's ................................. 10 - 6
10.5 Calibration not possible .................................................................. 10 - 7
10.6 Fluctuating or erroneous display .................................................... 10 - 8
10.7 Response time too long (t90 time)................................................. 10 - 9