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2 General information
2 General information
DANGER!
The device is suitable for measuring pressure in gases and liquids without solids content.
In the SIL version (functional safety), this device is used in safety-related systems for minimum,
maximum and area monitoring that fulfil the requirements of the series of standards
IEC 61508:2010.
A failure of the device or other devices connected to it, e.g. due to an operating error, can lead to
dangerous malfunctions of the whole plant.
Therefore please also observe the corresponding safety manual from the device series.
NOTE!
Read this operating manual before putting the device into service. Keep the operating manual in a place
that is accessible to all users at all times.
All necessary settings are described in this operating manual. Nevertheless, should problems be en-
countered during startup please do not make any unauthorized manipulations. This could endanger your
rights under the warranty!
Please contact the nearest branch office or the head office.
2.1 Areas of application
The device with the HART® interface combines maximum precision with simple operation. It is used to
measure the system pressure of gas, steam and liquids. The built-in LCD displays measured values and
device data. The device can be installed up to zone 0 in the version with explosion protection "Ex ia (in-
trinsically safe)".
The housing and sensor are manufactured from high-grade stainless steel. Diaphragm seals can also
be connected for specific process technology applications (see data sheets 409772 to 409784).
The pressure transmitter can be programmed and can therefore be flexibly adapted for various measur-
ing tasks. There is an easy-to-use setup program available as an accessory for operation via interfaces.
A rotary knob allows for quick and easy on-site manual operation.
The pressure transmitter with 4 to 20 mA and HART® protocol was evaluated with regard to functional
safety and is certified by exida according to IEC 61508/-1/-2/-3. These measuring devices are suitable
for monitoring process level and process pressure up to SIL2. Further details can be found in the Safety
Manual.
Use in "Ex-area"
In the Ex ia version, the device is permitted for use in the "Ex-area" if it has a corresponding identification
marking on the nameplate.
For the special conditions for use, the examination certificate must be observed.
chapter 12 "Examination certificate", Page 75
Functional safety use
In the SIL version, the device is permitted for use according to IEC 61508 if it has a corresponding iden-
tification marking on the nameplate.
Application areas
The device can be used for various applications, e.g.
• For level measurements
• For foam formation
• In containers with mixers or sieve installations
• For liquid gases
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