Thermo Scientific TCF-32 Instruction Manual page 68

13.3 Functional Checks
a. Lubricating unit
1.OIL Switch
When OIL switch is turned on, the lamp of the switch is turned on, and oil flows.
2.WATER switch
When WATER switch was turned on under the condition that cooling water wasn't supplied,
a trouble lamp is turned on after about 5 seconds, and buzzer sounds.
3.DRAIN switch
When DRAIN switch is turned on, the lamp of the switch is turned on, and it has pump sound, and
air is sucked from the IN connector.
4.Flow condition of the OIL and the WATER
When OIL switch is turned on under the condition that it is possible to rotate TCF-32 system, the
oil flows through the seal assembly.
The cooling water is supplied to cool the seal assembly. When WATER switch is turned on,
the lamp is turned on. And the cooling water passes through the seal assembly properly.
5.Condition of the DRAIN line
A little transparent oil is sucked inside the drain tubing under the condition that TCF-32 system is
rotating.
b. Test Run
1.Check by the high-speed rotation
Rotate from 0 rpm to 32,000 rpm by centrifuge, rotation noise and seal assembly noise are
checked.
There is no abnormal sound or chattering.
2.Check in the 32,000 rpm rotation
Pressure value is from 0.04 Mpa to 0.06 Mpa when the sample flow rate is 30 ml/min.
Pressure value is from 0.07 Mpa to 0.12 Mpa when the sample flow rate is 150 ml/min.
13.4 Reference (Life of Consumable parts)
Replace the seal with a new one every 50 hours.
Replace the shaft (D) and seal body assembly with a new one every 500 hours.
Replace the bearing with a new one properly.
-49-