Hexagon screws and nuts for flanges in accordance with DIN EN 1092-1
Material / strength class
Screw Nut
Operating limits Standards
5.6 5
8.8 8
up to 40 bar
down to -10°C
DIN ISO 4014
DIN ISO 4032
CK 35 CK 35 up to 100 bar
down to -10°C
DIN 2510
Stud bolts with continuous thread for flanges
in accordance with ANSI/ASME B 16.5
Material / strength class
Bolt Nut
Operating limits Standards
A 193 B6 A 194
Gr. 6
up to 100 bar
down to 0°C
A 193 B7 A 194
Gr. 2H
up to 100 bar
down to -50°C
ANSI/ASME B 1.1
Other equivalent materials may also be used.
7. Pulse generators
LF pulse generators (Type IN-S) may be plugged onto the side of
the counter cover for volume pulse output to external devices (e.g.
a volume corrector).
Fit the pulse generator (if required) as follows:
- Slide both guides of the IN-S pulse generator into the guide slot
on the counter cover until the guides can be heard to engage
(clicking sound).
- Assign the terminals on the plug in accordance with the pin
assignment on the meter/pulse generator.
- Use a screened cable to the external device.
You can use HF pulse generators for higher frequencies (Types
A1R and A1S) (if available). HF pulse generators are screwed into
the meter housing pressure-tight. However, the connection plug can
be turned.
- Assign the terminals on the plug in accordance with the pin
assignment on the unit.
- Use a screened cable to the external device.
Pulse generators for subsequent installation are also available.
HF pulse generators (Type A1S) can, however, be fitted only by
the After-Sales Service. By contrast, you can connect the plug yourself, as described
above.
Warning! All pulse generators are intrinsically safe and may be connected only to
intrinsically safe circuits if used in potentially explosive atmospheres. The safety
barriers must comply with the requirements of ignition protection EEx ib IIC (see also
Marking in Annex A).
8. Pressure test point
A straight male coupling in accordance with DIN 2353 is pre-fitted on the meter housing for
connection of a pressure sensor for instance.
The pressure test point is marked p
m
and is designed for connection of d= 6 mm steel
tube in accordance with DIN EN 10305-1 (e.g. steel grade E 235).
All rights reserved. Subject to technical modification. Page 7 of 13
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