Table 2 1200L GC/MS Power Requirements
Instrument
Max Current Draw
100-115V (Amps)
Max Current Draw
200-240V (Amps)
CP-3800 Gas Chromatograph
20
10
1200 Mass Spectrometer
12
6
Computer
3
1.5
Monitor
3
1.5
Printer
3
1.5
NOTE: See Appendix 2 for complete current supply requirements for the standard modules.
The power cable from the GC is approximately 80 in. (2 meters) long and fitted with National
Electronics Manufacturers Association (NEMA) 5-20P power plugs. The NEMA 5-20P power
plug and corresponding outlet are shown in Appendix 3 Figure 5(a). NEMA 5-20P plugs are
rated at 20A and 120 Vac.
The power cable from the mass spectrometer is approximately 98 in. (2.5m) long and fitted with
National Electronics Manufacturers Association (NEMA) 5-15P power plugs. The NEMA 5-15P
power plug and corresponding outlet are shown in Appendix 3 Figure 5(b). NEMA 5-15P plugs
are rated at 15A and 120 Vac.
The power cables for the computer, monitor, and printer are approximately 80 in. (2m) long.
They are fitted with NEMA 5-15P plugs.
Systems shipped outside the United States and Canada are fitted with CEE 7/7 plugs which are
rated at 16A and 230 Vac. The CEE 7/7 plug and outlet are shown in Appendix 3 Figure 5(c).
Gas Requirements 1200L GC/MS
CI Reagent Gases
The CI mode for the 1200L MS typically uses methane, isobutane, or ammonia. The amount of
gas consumed during CI operation is approximately 1 to 2 mL/min. The CI reagent gas should
contain less than 1 ppm water. The methane, isobutane, or ammonia gas supply line connects
directly to the CI gas inlet using 1/8-inch Swagelok fittings.
Before evacuation, new gas lines typically contain significant amounts of adsorbed water vapor.
The longer the gas line, the greater the pumping time required to evacuate the water from the
line. To minimize pumping time, we recommend that the line be as short as possible.
Methane 5.0 Research Grade (99.999% purity)
A two-stage, 0
−
15 psi (0
−
1 bar) pressure regulator that has a stainless steel diaphragm is
recommended. The output pressure to the 1200 MS should be set to 3
−
5 psi (0.2
−
0.3 bar). Gas
lines for methane should be made of stainless steel. All gas lines should be free of oil and
preferably flame treated or solvent washed.
Isobutane 5.0 Research Grade (99.999% purity)
A two-stage, 0
−
15 psi (0
−
1 bar) pressure regulator that has a stainless steel diaphragm is
recommended. The output pressure to the 1200 MS should be set to 3
−
5 psi (0.2
−
0.3 bar). Gas
lines for isobutane should be made of stainless steel. All gas lines should be free of oil and
preferably flame treated or solvent washed.
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1200/1200L MS Pre-installation Instructions
