Binder COMBIMASS compact, Сборка и руководство по эксплуатации

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COMBIMASS
®
compact
Doc. No.: 0905EE20500
9
Chapter 1 Safety, General Information
GENERAL INFORMATION
The following description in the operating manual provides information on installation, initial operation,
control of the electronics, and the gas flow measuring system.
Only careful observance of the operating manual can ensure perfect functioning of the system and prevent
exposing the expert personnel to unnecessary danger. For the specifications of your measuring system,
please see the calibration specifications enclosed in duplicate.
Functional Description
The COMBIMASS® compact series of gas mass flow meters are field transmitters for flow rate measure-
ment
■
The flow meters are especially designed for high temperature and high operating pressure process
applications of up to 1100°C and 100 bars.
■
Optionally, the units are available in explosion-proof versions for Zone 1 or Zone 0.
■
The flow transmitters apply thermal dispersion technology in order to measure directly the normal vo-
lumetric or gas mass flow, regardless of the operating pressure and temperature of the medium.
■
For the purposes of practical operation the transmitter electronics features temperature compensation
and the possibility to select different measuring modes (choice of constant current or constant tempe-
rature principle).
■
For transmission of the flow signal an isolated 4-20 mA analog output as well as a field selectable pulse
output is available.
■
For intrinsically safe operation a dedicated process interface module has been developed for the power
supply of the flow transmitter. The signal output is taken off via an I/O module that is installed after
the process interface module.
■
Both the circuit boards of the process interface module and the I/O module are mounted in top hat rail
housing for easy assembly in the field cabinet.
■
Also an optionally available graphic display may be installed.
■
The flow transmitter can be combined with a wide range of different sensors of the COMBIMASS@
family and assembled individually according to the specific application.
■
Each flow meter will be tested prior to shipment and calibrated at our CAMASS@ calibration centre
under actual operating conditions.
Technical specification see page 27
Important Points
1. The electronic enclosure and the electronics (master or slave) must both have the same serial number
as each measurement system is calibrated individually depending on the measurement point used (for
the serial number please see page 8).
2. The actual internal diameter of the piping should be measured in order to ensure that it corresponds
with the diameter given in the calibration specification.
3. For flow rate measurement of wet process gases with condensation of water (eg. digester gas), the
sensors have to be installed from the side. It is recommended to clean the sensor every 3-6 month, in
particular if no filter is installed upstream of the sensor.
4. If the sensor tube is twisted with regard to the connecting head during assembly, it must be newly
sealed in.
5. Always transport or dispatch the sensor in the protective tube.
NOTE
ATTENTION!