420 Oven and Temperature Control
Heated zones
2 of 20
Jun 2001
Mainframe
Agilent 6890 Gas Chromatograph Service Manual
the first run of the day. The optional oven insert for fast chromatography
increases oven ramp rates for the back column. Table 420-1 lists typical oven
ramp rates.
Table 420-1 Oven Ramp Rates
Configuring the GC for an MSD
If you are installing an Agilent Mass Selective Detector, you must configure
the GC to properly control the heated transfer line.
1. Press [Config][Aux], and select [1] if the MSD is installed in the front
position or [2] for the back position.
2 Press [Mode/Type].
3 Use the scroll keys to select MSD as the Aux zone type. Press [Enter].
If you do not configure the Aux zone for MSD, Warning 101, Invalid heater
power for front (back) detector, inlet, and aux 1(2), will appear on the GC
display, and the heated zones will be set to not installed.
100/120 V oven
ramp rate (°C/minute)
200/220/230/240 V oven
ramp rate (°C/minute)
Temperature
range (°C)
Without
insert
With optional
insert
Without
insert
With optional
insert
50 to 70 75 120 120 120
70 to 115 45 95 95 120
115 to 175 40 65 65 110
175 to 300 30 45 45 80
300 to 450 20 35 35 65