VAF instruments VISCOSENSE 2, Technical Manual

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26
8.2.1 General procedure
一般程序
1. Change over to manual viscosity control.
将黏度控制改为手动
2. Shut off flow through the ViscoSense
®
2 sensor, by closing the valves on both side of the sensor
housing.
关闭探头仓室两侧的截止阀，停止燃油通过传感器。
3. Switch off power supply to the ViscoSense
®
2 interface box.
切断传感器界面盒之电源。
4. If possible drain and empty the piping system.
若可能，排空管路系统
Although the flow has been shut off, the ViscoSense
®
2 housing can still be under
pressure and hot. If the sensor is removed from a sensor housing which has not been
de-pressurized, hot oil will spray out.
尽管系统已停止流动，但探头室仍可能高热和受高压作用。如果在尚未消除压力情况下
拆卸探头，那么巨热的燃油将会喷出。
5. Unscrew the ViscoSense
®
2 sensor from its housing by loosening nut 1 (Figure 8 ViscoSense
®
2
sensor assembly).
扭松螺母
1,
旋出探头（图
8
传感器装配图解）
6. Take out the ViscoSense
®
2 sensor.
取出探头
7. Do not remove the flow tube, do not stick any object in between the flow tube and pendulum.
勿取下流管，不要将任何物体粘留在钟摆和流管之间。
8. Flush the space between the tube and the pendulum with diesel oil or non aggressive cleaning
detergent.
使用柴油或非腐蚀性清洁剂冲刷管壁与钟摆间空间。
Take care that the pendulum is not damaged or the torsion tube bent by mechanical
force.
小心钟摆受外力损伤，扭管因机械外力作用弯曲。
NEVER use abrasive materials like sandpaper, files etc., to clean the flow tube.
切勿用磨擦材料，诸如砂纸，锉等清洁流管。
9. For the re-installation of the sensor in the sensor housing please follow the instructions in chapter
6.
请参阅第
6
章的指示说明，重新安装探头于仓室。
As it is important to install only one original o-ring, please verify that no parts of the old o-
ring are left behind in the housing. Using other o-rings than original VAF o-rings can cause
misreading of the sensor.
切记，只能安放一只原装
O
型圈。这一点非常重要！同时请确保没有旧的
O
型圈及部件遗落
在传感器舱室中。使用非
VAF
原厂配置之
O
型圈会导致传感器误读。