Yokogawa DM8C/VD6 Liquid Density Analyzer - Manual (Page 30)

< 3. INSTALLATION, PIPING AND WIRING >
3-4
IM 12T03A01-02E
Anchor bolt
Drain pit
Concrete base
Density meter sampling unit
Figure 3.6 Installation Example for Sampling Unit (Model VD6SM)
(2) Note of Designing a Density Meter Sampling Unit
• Minimize liquid pipe length to improve response.
• Design the piping not to allow air bubbles to remain in the pipe which may cause an error.
• Piping should not have sharp bending where solids may accumulate.
• Maintenance such as cleaning should be made easily.
• Select element material most suitable for measuring liquid. Especially, for foodstuff
measurement, the selection should be done strictly.
(3) Installation of a Density Meter Sampling Unit
For the density detector with the sampling unit or with the sampling equipment user provided,
installing place must
• be near to sample tap on the main pipe.
• be free from vibration
• meet the ambient conditions specifi ed by the hazardous area (when the detector is model
VD6DF fl ameproof type).
Moreover, the sampling unit should be fi xed to a concrete base drained well.