Watson-Marlow MR-Series - Manual (Page 50)

Revision 1.4 / August 2013 Visit our website at www.masosine.com 50
Safety instructions (ATEX)
Watson-Marlow MasoSine - Pump used in production machinery with explosive mixtures will be equipped accordingly in the
factory.
1.1 Maintenance of the bearings
• For pumps in series
MR120, MR125, MR130, MR135 and MR150 ,
both bearings must be replaced by new
ones after running for 10,000 hours!
1.2 Safety signs
1.3 Pump classification
The pumps are only designed for jobs lasting several days and are therefore assigned to the Device Group II – Application field
“dust – or gas – explosive areas”!
1.4 Zone classification
The Watson-Marlow MasoSine - Pumps can be used in explosive areas of the zone 1 / 21. This corresponds to the category 2
G / D.
It is expressly forbidden to use the pump(s) in the zone 0!
1.5 Classification of the ex-atmospheres
A distinction is made between dust and gas explosive atmospheres. In the model code, the atmosphere is abbreviated with G
(Gas) and D (Dust). Watson-Marlow MasoSine - Pumps are only designed for the explosive atmospheres G (Gas) and D
(Dust)!
1.6 Ignition protection
Our pumps are subject to ignition protection "c" constructive safety according to the standard for "non-electric appliances for use
in explosion-risk areas" EN 13463-5
1.7 Temperature classes
For product temperature EX II 2 G c T4
up to max. 100°C: EX II 2 D c T=120°C
1.8 Limit values for the pump
The limit values for the pump (max. speed, max. pressure, max. temperature) are stated in the data sheet (see page 4). These
limit values must never be exceeded under any circumstances! This applies in particular when using a frequency converter.
If the pumps are supplied without a drive, the following values apply!
MR120 MR125 MR130 MR135 (RF) MR150 (RF)
max. Druck * 10 bar 10 bar 10 bar 10 bar 10 bar
max. Drehzah * 800 UpM 800 UpM 600 UpM 600 UpM 600 UpM
max. Tm * 100°C
100°C
100°C 100°C 100°C
Umgebungstemperatur -12°C bis +40°C -12°C bis +40°C -12°C bis +40°C -12°C bis +40°C -12°C bis +40°C
Grounding symbol
* depending on the rating of the pump (pls. see order confirmation)