Limitid indikator GWG - type GWS -issue 1
part no. 15 382 64 c
3 / 12
The function of the limit indicator is only guaranteed in combination with the overfill
prevention mechanism of the road tanker. The certificates of suitability for intended
use of the overfill prevention mechanism must be observed and adhered to as well.
The limit indicators for the GWG series already fulfil the requirements of EN 13616-2 “Overfill
prevention device for stationary tanks for liquid fuels — part 2: overfill prevention devices
without closing unit” in connection with EN 16657 “Tanks for the transport of hazardous goods
- transport equipment for overfill prevention devices for stationary tanks.”
The GWS type limit indicator meets the requirements for devices and protective systems for
intended use in potentially explosive areas according to the ATEX Directive 2014/34/EC.
Installation permitted in
Ex protection zone
Marking
Ex II 1/2G Ex ia IIB T4 Ga/Gb
Limit indicator
1
Probe tube with sensor
+ see issue 1,
table 3
0
Special conditions
•
The GWS type limit indicator cannot be used in proximity to strong charge generating
processes.
•
The metallic housing of the insert has to be incorporated in the earthing concept of the
installation.
•
The sensor cover is not connected with the insert so that it is electrically conductive and has
a capacity of 21 pF. The danger of electrostatic charging has to be taken into consideration
during the installation and operation.
GENERAL PRODUCT INFORMATION
Table 2:
Type GWD designs
(exemplary probe length
Z
= 400mm)
Connector directly on the probe tube
Pipe fitting 904
Pipe fitting 907 (brass)
in telescopic design
in telescopic design
optionally with QAS and FHS
