Description; Ex Atmosphere - Definitions And Mounting Instructions; Information On Explosion Protection - Flow vision FC01-Ex User Handbook Manual

Flow Meter | FC01- Ex

1 Description

The Flow Meter FC01-Ex is used for stationary measuring, control and indication of flow velocity, flow
rate and medium temperature of liquid, gaseous and dust media with evaluation of the measuring data
of the calorimetric monitoring head CST-Ex with separate EC-type-examination certificate.
In addition the FC01-Ex provides power to, and processes output signals from the intrinsically safe
type CST-Ex monitoring head. Connections between the intrinsically safe area and the non-intrinsically
safe area are via safety barriers. The FC01-Ex is intended for the installation outside the hazardous
area.
2 Ex-atmosphere - Definitions and mounting instructions

2 . 1 Information on explosion protection

Safety barriers are installed between the Flow Meter FC01-Ex and the monitoring head CST-Ex. They
are designed according to the directives of the European standards EN 60079-0:2012, EN 60079-11:2012
and EN 60079-15:2010 to type protection:
II 3 (1) G Ex nA [ia Ga] IIC T4 Gc
II (1) D [Ex ia Da] IIIC
They bear the EC-TYPE-EXAMINATION CERTIFICATE number PTB 01 ATEX 2053 X.
The monitoring head CST-Ex is an intrinsically safe equipment. It has been designed for use in
potentially explosive atmospheres to directive 2014/34/EU and is meant for use in applications of
the equipment group II, category 1 (gas zone 0 or dust zone 20).
It has been designed according to the European standards EN 60079-0:2012+A11:2013, EN 60079-11:2012,
and EN 60079-26:2015 type of protection:
II 1/2 G Ex ia IIC T4 Ga/Gb
II 1 D Ex ia IIIC T100°C... T130°C Da
It bears the EC-TYPE-EXAMINATION CERTIFICATE number EPS 14 ATEX 1 682 X. (Available materials
and design versions see chap. 2.3 and 3.1.1)
Special conditions:
1. Instructions of the user manual have to be observed, particularly with regard to reduced ambient
temperatures.
2. Explosion protection depends in particular on the leak-tightness of the sensor tips. Therefore
the monitoring head shall only be used in media, to which the material is suited with regard to
corrosion resistance.
3. With Titanium sensors as wetted parts, a probable occurrence of impact or friction sparking has
to be excluded by using suitable mounting methods.
4. Maximum surface temperatures (for dust) as a function of medium temperatures:
max. medium temperature [°C]
8
DESCRIPTION
45
50
55
60
65
70
75
max. surface temperature [°C]
100
105
110
115
120
125
130