Agilent Technologies 6890 Series - Column Oven

540 Instrument Specifications
Column oven
2 of 6
Jun 2001
Site Preparation
Agilent 6890 Gas Chromatograph Service Manual
Column oven
• Dimensions: 28 × 31 × 16 cm
• Operating temperature: 4°C above ambient to 450°C
– with LN
2
cryo: –80°C to 450° C
– with CO
2
cryo: –55°C to 450°C
• Temperature setpoint resolution: 1°C
• Maximum setpoint temperature rate: 120°C/min
• Actual programming rate: see Figure 540-1
• Cool-down rates: see Figure 540-2. Rates are greater when using the
optional oven exhaust deflector or cryogenic cooling.
• Maximum run time: 999.99 min
• Programming ramps/plateaus: 6/7
• Ambient rejection: <0.01° C per 1°C
• Column bleed compensation standard for two channels
500
450
400
350
300
250
200
150
50
0
100
0 100 200 300 400 500 600 700 800
240 Volts 120 Volts
500
450
400
350
300
250
200
150
50
0
100
0 100 200 300 400 500 600 700 800
Temperature (°C)
Temperature (°C)
Time (sec)
Time (sec)
Figure 540-1 Typical oven heatup rates,
6890 Series GC
Figure 540-2 Typical oven cool-down
rates, 6890 Series GC