Kobold MAN-D Series, Operating Instructions Manual

Page: 8 / 16

MAN-D
page 8 MAN-D... K02/0522
9. Commissioning
Differential pressure gauge is ready for use, if:
- pressure connections are manufactured and
- the electrical connection (for gauges with electrical additional facilities) is
connected as specified.
Zero point must be checked after mounting and adjusted if necessary.
For inspection, the connection cables must be depressurized.
With deviation from the zero error tolerance, the zero point can be adjusted via
screw driver at the adjustable pointer at standard pressure gauges.
Pressure loads, maximum working pressure (static pressure) and overload-limits
must be complied with range of application.
Pressure surges (rapid pressure changes) must be avoided. By using valves by
carefully or slowly valve actuation.
Over pressure overloads (more than the specified overload limits) lead to
equipment failure if device-related no safety measures are taken.
9.1 Application information
For dangerous materials, such as for example oxygen, acetylene, flammable and
toxic substances, as well as sewage treatment plants, pressure tanks etc., the
existing rules beyond the general rules must be followed.
10. Maintenance
The differential pressure gauges require no maintenance or servicing and by
correct handling / operating they are characterized for a long economic life-time.
When the zero-point during long-time service, particularly during frequent load
changes, changed itself more than ± 20% of full scale value, we recommend for
safety reasons a checking in our company.
The indicator should be checked once or twice every 12 months.
The instrument must be disconnected from the process to check with a pressure
testing device.
The instruments should be cleaned with a damp cloth moistened (with soap
solution).
Any residual pressure medium contained in the pressure element may be
hazardous or toxic. This should be taken into account when handling and storing
pressure gauges which have been removed.