7.3Baking the STP Pump
To attain a lower pressure in a shorter time and reduce the exhaust time, bake the vacuum equipment and STP pump.
WARNING
◇The surfaces of the STP pump and its peripheral equipment will become extremely hot when performing baking. NEVER touch them with bare hands.
CAUTION 
◇When baking the STP pump, always cool it to prevent overheating (for the cooling method, see Section 7.2, "Cooling the STP Pump").
◇Start baking after cooling is started.
Set the temperature of the baking heater to 120 ℃ or lower (an optional baking heater is set to 110 ℃ or lower).
◇DO NOT suck gases during baking to prevent overheating.
NOTICE
◇To exhaust the gas discharged from the vacuum equipment and the inner wall of the STP pump, run the STP pump during baking.
7.3.1Attaching a Baking Heater
1)Attach a baking heater (optional accessory) as near as possible to the inlet port flange.
2)Affix the "Hot Surface Warning Label" to the surface of the STP pump so that the operator can see it clearly at any time.
CAUTION 
◇Check the rated voltage of the baking heater before use.
◇Wind the baking heater around the surface of the STP pump tightly. If the baking heater is not wound tightly, the loose parts will overheat.
◇Procure protective parts for the baking heater, such as a residual current operated circuit breaker and fuses when using the baking heater (remote terminal block TB2 incorporates fuses).
◇DO NOT apply excessive force to the cable for the baking heater.
