2 Installation | Model 7300A |
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placed as close to the sample point as possible and bolted to its supporting surface. When installed as a system with enclosure (non-panel or rack mounted) a waterproof mastic should be liberally applied to the under surfaces of all supporting legs of the cubicle system before placing it in position and bolting it in place.
2.2.1 User Connections
All user connections are on the back of the equipment panel and appear in the outline diagram in the back of the manual or addendum to the manual.
2.2.2 Electrical Power Connections
The standard power requires a supply of 100-125VAC, single-phase power. Power connections are made at the rear panel of the unit. Refer to the input-output diagram for more information. The electrical power service must include a high-quality ground wire. A high-quality ground wire is a wire that has zero potential difference when measured to the power line neutral. If you have the B option, you will require 220 or 240 VAC, 50/60 Hz power. Check the analyzer input-output diagram, power schematic, outline, and wiring dia- grams for incoming power specifications and connecting points.
Warning: Primary power to the system should not be supplied until all customer wiring is inspected properly by start-up personnel.
2.2.3 Calibration Gases
The system may require a supply of clean, oil and particulate free air for use as zero gas.
For accurate calibration, the analyzer requires a blended gas mixture, typically 80-90% of the full scale range. For examle: a 0-1% CO analyzer should use a 0.8% to 0.9% CO in N2 bottled mixture. The gas blend should be a working certified standard, analyzed by the gas supplier to at least 2% accuracy.
Do not restrict the bypass, sample or reference vents of the analyzer (and sample system when provided). All lines must vent to a stable safe area-typically 1 ATM A +/- 0.005 pressure (0 psig +/- 0.07). Be sure to vent the analyzer exit to atmospheric unless otherwise indicated by the system piping schematic. Refer to the systsem outline, piping schematics for proper connections and flow paths of the analysis system.
