Bacharach 6401-0500 Installation And Operation Manual page 7

SECTION 1. INTRODUCTION ........................................................................ 9
Figure 1. MGS-250 Components ......................................................................... 9
Figure 2. Broadband Gas Groups 1-3 ................................................................ 11
Figure 3. Gas Specific MGS-250 Gas Detectors ................................................. 12
Figure 4. Changing Gas Types and Accuracy ..................................................... 14
SECTION 2. MOUNTING THE GAS DETECTOR ............................................. 17
Figure 5. Initial Housing Separation .................................................................. 20
Figure 6. Front and Back Views of MGS-250 Base ............................................ 21
SECTION 3. WIRING AND CONFIGURATION ............................................... 22
Figure 7. Terminal Blocks and Cable Glands ..................................................... 22
Figure 8. Supply Power Wiring Options ............................................................ 23
Figure 9. Maintaining Neutral Polarity .............................................................. 24
Figure 10. Analog Output Wiring ...................................................................... 25
Figure 11. Sample Relay Output Wiring ............................................................ 26
Figure 12. Modbus Network Wiring .................................................................. 27
Figure 13. Setting Network Termination Resistors ........................................... 29
SECTION 5. CONFIGURE THE GAS DETECTOR ............................................. 33
Figure 14. The User Interface of the MGS-250 ................................................. 33
Figure 15. Analog Output Scaling Options ........................................................ 39
SECTION 6. FUNCTIONAL TESTS AND ADJUSTMENTS ................................ 43
Figure 16. Using Calibration Gas ....................................................................... 46
6490-9000 Revision 3
List of Figures
MGS-250 Manual
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