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Idiomas disponibles
Idiomas disponibles
This pressure gauge follow the EN 837.1
The user must ensure that the appropriate pressure gauge with regard to the medium effect on the used
material/measuring system, scale range and version is selected. The optimum selection of the scale range
of the pressure gauge is given, if the operating pressure is in the midscale of the scale range.
Zero point marking
The tapping points should be prepared according to the indications for tapped holes. Further information you
will find in the VDE/VDI directive 3511 and 3512 page 3 and EN 837-1/2.
Sealing surfaces according to DIN 16258 are particularly suitable for sealing the pressure gauge.
The correct torque depends on material and shape of the sealing washer. It should not exceed 80 Nm.
Torque should never be applied to the gauge case. Instead, an adjustable wrench should always be used on
the wrench flats of the gauge socket to tighten or remove the pressure gauge.
Pressure gauge without glycerin/oil filling should be installed such as to avoid exposure to vibration and allow
easy observation of the dial indication.
Glycerin or oil filled pressure gauges are equipped with a venting plug to be used according to the indicating
lable on the pressure gauge housing.
We recommend the installation of isolating devices between pressure tapping point and pressure gauge faci-
litating replacement of the pressure gauge or a zero point control while the system is pressurised.
Correct zeroing may be checked by closing the isolating device and relieving the gauge from pressure.
The pointer must fall within the thickened portion of the zero mark. The influence of temperature on the indi-
cation accuracy must be considered.
If the tail pipe is not sufficiently rigid to accept the wight of the pressure gauge, particularly where vibration
exists, the gauge should be mounted by means of a mounting device for surface or pipe mounting, if necessary
with capillary extension.
The pressure gauge should be installed such as to avoid that the admissible ambient temperature
(ambient and medium) and possibly convection and heat radiation will not exceed the temperature
span the pressure gauge is intended for. Suitably shaped tail pipes or syhons with water filling may be used
to separate the gauge and its device from hot pressure media.
Should the measuring media be subject to rapid fluctuations in pressure, or pressure surges have to be taken
into account, these must not be allowed to act on the pressure element. The pressure surges must be restricted
in their effect, for example by filling integral restrictor screws (to reduce the cross-section in the canal) or by
using an adjustable snubber device.
Normal gauge position will have the dial facia in its vertical position. Positions other than vertical will be
indicated by a symbol on the dial.
No pressure higher than indicated by the working pressure symbol (final value) on the dial must be applied
to the pressure gauge during hydrostatic pressure test of the system. Otherwise the pressure gauge must be
isolated or removed during this operation.
Before removing the pressure gauge, the measuring element must be depressurised.
To avoid damages the pressure gauge is stored in its original packing.
Storage temperature: -40 to +70°C.
Notice:
For pressure gauges with electric alarm contact, see instruction manual:
Alarm contacts;
Type: S/M
Type: E
Type: I
Type: P
4
X
Connector
Sealing surface
Art.-Nr.: 413081
Art.-Nr.: 413082
Art.-Nr.: 413083
Art.-Nr.: 413084
X
Final value
limitation marking
Quality for the
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