6 | Technical Data
FISCHER Mess- und Regeltechnik GmbH
22 / 36
BA_EN_MA15_ATEX
Protection
IP66 acc. to EN 60529 / IEC 60529
Materials
Housing
CrNi Steel 1.4404
Motion train
CrNi steel 1.4301
Dial face and needle
Aluminium (painted)
Inspection disk
Safety laminated glass
Connecting port (contact with medium) CrNi-steel 1.4404 (AISI 316L)
Connection flange (contact with me-
dium)
CrNi-steel 1.4404 (AISI 316L)
Diaphragm (contact with medium)
- Measuring range ≤ 250 mbar
CrNi steel 1.4571 (AISI 316T)
- Measuring ranges ≥ 400 mbarr
NiCrCo alloy (DURATHERM
®
)
Seals (contact with medium)
VITON
®
6.2 Options
Additional electrical attachments
Limit signal transmitters of the type KE and capacitive rotation angle transducer
of the type KE09 can be fitted into a housing enlarged by a corresponding bay-
onet ring. The electrical connection is usually realised via a cable connection
socket mounted to the side of the casing.
Please refer to the data sheets KE and KE09 for technical data. You can re-
ceive the data sheet on request or download them from our webserver
www.fischermesstechnik.de
.
Fluid charging
The housing can be filled with glycerine if the casing is to operate under aggrav-
ated operating conditions such as vibrations and extreme pressure fluctuations,
or in order to avoid condensate formation if used outdoors.
• Silicone oil is used in units with switch contacts.
• Paraffin oil is used in units with inductive proximity switches.
• Filling is not possible in units with a capacitive rotation angle transducer.
Needle
•
Marker indicator
Settable indicator for marking the limit value in the disk.
•
Drag indicator
The drag indicator is 'dragged' by the measured value indicator. As there is
no fixed connection between the two needles, one-off maximum values are
stored. The trailing needle can be reset using an adjusting dial in the win-
dow.
