Toshiba GF630 Instruction Manual page 18

4.2.2 Installation Procedure
In the case that the piping is non-conductive material, make sure to install the grounding rings(option)
to each flange of detector using the M4 screw before piping . The M4 screws are prepared to each flange.
In addition, in the case of detector with FEP lining, make sure to install the gaskets between grounding ring
and lining. The gaskets must be installed so as not to protrude into the measurement tube.
And install the ground cables to each flange of detector using the M5 screw as needed. The M5 screws,
spring washers and washers are prepared to flange. And the ground cables are included in the package.
M4 screw(Prepared to flange)
※refer to chapter 10 about the
number of screws
Grounding ring
(Option for FEP,PU)
(Standard for PTFE)
Upstream flange
Gasket
*Note2
Flow direction
Figure 4.5 GF630, GF632 flowmeter detector piping connections
Gasket
(Option for FEP only)
(Standard for PTFE)
Figure 4.4 Install of grounding rings and ground cables
− １７ −
Detector
Lining
Downstream flange
Detector
６Ｆ８Ａ０８８２
Flange
Ground cable
(Included in the package)
M5 screw , spring washer and washer
(Prepared to flange)
Upper mounting bolts
Gasket
*Note2
Lower mounting bolts