Installation Torques; Certificates And Approvals - Siemens SITRANS FC410 Operating Instructions Manual

Technical data

11.12 Installation torques

11.12 Installation torques
Table 11- 30 Installation torques
Description
Pressure guard fittings
Pedestal lock screw cap
Cable gland to housing (Siemens
supplied, metric)
Note
NPT glands
When using NPT glands, user must take care when packing threads and installing cables
that sufficient tightness is obtained to prevent ingress of moisture.
11.13

Certificates and approvals

Table 11- 31 Certificates and approvals
Description
ATEX
102
Torque (Nm)
80
10
10
Specification
FC410 flowmeter (can be installed in Zone 1 for gas and Zone 20/21 for
dust):
Certificate: SIRA 11ATEX1341X
II 1/2 G
1D
2D
For gas:
Ex d ia IIC T* Ga/Gb
Ex d IIC T* Ga/Gb
(Ga/Gb: Zone 0 in pipe and Zone 1 in environment)
For dust:
Ex ta IIIC T* °C Da
Ex tb IIIC T* °C Db
(Zone 20 ("ta") process and ambient temperature limited in comparison with
Zone 21 ("tb")
Ta = -40°C to +60°C
* Temperature class (dependent on the process temperature and the ambi-
ent temperature, see Special Conditions for Safe Use, Section 2.3)
Operating Instructions, 02/2016, A5E33120874-AC
FC410 with Modbus