Yamatake HGC303, Руководство пользователя

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Model HGC303 - Heat Value Gas Chromatograph 4-1
Chapter 4 : Maintenance
4-1 : Checking and changing the carrier gas
When checking the carrier gas, verify the following points:
1. Make sure the supply pressure of the carrier gas is stable at 400+/-50kPa.
2. During normal operation, the rate of carrier gas consumption will be approxi-
mately 25 ml/min. If the carrier gas is used as the valve operating gas at the same
time, the carrier gas consumption rate will be doubled. Calculate the appropriate
time for inspection intervals based on this figure and the quantity of the gas supply.
3. If the carrier gas is supplied from a pressurized cylinder, you should replace the
cylinder if the primary pressure on the cylinder side drops to 1,000kPa.
4-2 : Checking and changing the filters in model HGC303
When checking the process line, verify the following points:
1. Make sure the process gas flow rate is stable between 30 ml/min and 70 ml/min.
2. The process input pressure should be over 50kPa to keep the flow rate at 30 ml/
min. If an inspection reveals contamination in the flow meter or in the inline filter
of the sample conditioning system, the sampling parts require maintenance. At the
same time, the model HGC303 inlet line filter should also be replaced. It is recom-
mended to change the filter every 6 months. (See the spare parts list at the back of
this manual)
4-3 : Overhaul
The model HGC303 analyzer part requires an overhaul at least every 3.5 years.
Overhaul is to be done at a Yamatake technical center listed at the back of this manual.