GOK FST3.1VK Montage- Und Bedienungsanleitung Seite 28

Replacement of the limit indicator in potentially explosive areas:
• Installation for the respective EX protection zone is admissible for LPG operating medium
(extremely flammable) temperature classes T1 to T4 in accordance with EN 60079-0. This
includes group II, category 1 and 2 G (gas) devices.
• The temperature of the potentially explosive atmosphere may not exceed or fall below the
range of -30°C to +70°C.
• The pressure must not exceed 25bar.
• The leak-tightness of the sensor within the probe tube may not be jeopardised.
Installation in potentially explosive areas!
Can cause explosions. Severe burns in case of direct skin contact.
There may not be any sources of ignition or other heat sources within a 5m area
around the tank equipment!
Only the following categories of (EX protected) devices may be used in potentially
explosive areas:
In zone 1: category 1 or category 2 devices.
Before carrying out installation, use a gas detector to check whether there is an
explosive mixture of more than 40% of the lower explosion limit around the tank
or in the dome.
Limit indicator
Order no. dip length in
55 228 14
55 228 08
55 228 25
55 228 16
55 228 07
55 228 03
55 228 17
55 228 21
55 228 19
55 228 23
55 228 15
Escaping LPG (category 1):
• is extremely flammable,
• can cause explosions,
• severe burns in case of direct skin contact.
No smoking!
No open flames!
No sparking!
Keep ignition sources and electrical devices out of range!
Observe applicable laws and regulations!
Wear eye protection, safety goggles or face shields!
Wear work gloves!
The limit indicator can be replaced at tank pressure. The shut-off valve
replacing the limit indicator under tank pressure prevents gas leakage.
12 / 16
FST3.1VK type compatible overfill prevention device
Order no.
[mm]
180 55 228 20
190 55 228 00
200 55 228 06
210 55 228 10
220 55 228 04
250 55 228 26
260 55 228 27
265 55 228 11
270 55 228 01
275 55 228 24
280 55 228 12
Limit indicator
dip length in Order no.
[mm]
290 55 228 05
310 55 228 02
330 55 228 28
340 55 228 18
360 55 228 13
365 55 228 30
400 55 228 29
420 55 228 09
450 55 228 32
460 55 228 31
465 55 228 22
Limit indicator
dip length in
[mm]
470
480
500
510
525
530
550
580
673
828
965
which closes when
Part no. 55 270 52