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SMN11071319
Note
The first stream is the calibration gas stream.
- Carrier gas is fed from two bottles.
- When one bottle is nearly empty (100 psig), the other
bottle becomes the primary supply.
- Each bottle can be disconnected for refilling without
interrupting GC operation.
3. Connect calibration standard gas to the GC
Note
When installing the calibration standard gas line, ensure that the correct
tubing connection is made.
? Use 1/8-inch stainless steel tubing to conduct calibration
standard gas.
? Use a single-stage regulator with low-side capacity of up to 30
psig.
? The calibration gas inlet is the last inlet following the sample
gas.
Model 700 Gas Chromatograph System Reference Manual
APRIL 2012 3-9000-521
3 - 29
Figure 3-13. Calibration gas stream inlet (right side of unit)
4. Connect sample gas stream(s) to the GC (see Figure 3-11 Model
700 Upper Enclosure panel).
? Use 1/8-inch or 1/4-inch stainless steel tubing to conduct
calibration standard gas.
? Ensure that pressure of sample line is regulated to maintain 15
to 30 psig (±10%).
? Gas stream inlet(s) are identified (see Figure 3-14) for details.
Gas Inlet
Calibration
System Reference Manual Model 700 Gas Chromatograph
3-9000-521 APRIL 2012
3 - 30
Figure 3-14. Sample stream inlets (Right side of unit)
5. After all lines have been installed, proceed with leak checking the
carrier and sample lines. See Section 3.5.1; note that it requires
the AC power to be turned on at the GC.
3.4 Setting the Com ID
The Model 700 Com ID is determined by dual inline package (DIP) switch
settings.
Note
Follow the steps in this section only if you wish to change the Com ID setting or visually
inspect and verify the DIP switch settings.
Streams 1 - 7
Gas Inlets Gas Inlet
Calibration
Model 700 Gas Chromatograph System Reference Manual
APRIL 2012 3-9000-521
3 - 31
Figure 3-15. Dip switch
In most cases, the Com ID configuration made at the factory will not
need to be changed. The factory DIP switch settings produce a Com ID of
1.
3.4.1 Inspect or change the Com ID
To visually inspect and verify the DIP switch settings or to change the
Com ID settings on the multifunction board,
1. Remove the dome from the upper enclosure.
CAUTION
Use caution when accessing an enclosure. A voltage of 115 to 230 VAC, along with
various DC voltages, are present. Failure to follow this precaution may cause injury to
personnel or damage equipment.
2. Loosen the thumb screws on the oven system mounting plate.
Note
Note that MON2000 Com I.D. settings will override the hardware settings. To
use the hardware Com I.D. configuration, enter a zero in the MON2000 Com
I.D. settings. For details, refer to MON2000 Software for Gas Chromatographs
User Manual (P/N 3-9000-522).