Dynamic response
The Promag 30 measuring amplifier has a very high dynamic response of over
1000:1. It measures at medium velocities from less than 10 mm/s to over 10 m/s with
the specified accuracy. When the flow is pulsating, the amplifier is not over-driven
even above the end value setting at maximum speeds up to 12.5 m/s. There is then
no falsification of the measured value, provided the outputs are not over-driven.
Memory (DAT)
DAT is an exchangeable memory module. Stored in it are all characteristic data of the
sensor, such as calibrated quantities, nominal diameter, sensing rate, version, serial
number. When the transmitter has been changed, the previous DAT memory is
inserted in the new transmitter. When the measuring system is started, the measuring
point continues to operate with the data stored in the DAT memory. Thus the DAT
concept assures maximum safety and optimum ease of operation when components
of the equipment are exchanged.
Safety
• A comprehensive self-monitoring facility of the measuring system assures high
safety. Any system error messages (coil-current error, amplifier error, DAT error,
EEPROM error, ROM error, RAM error) or a power supply failure that do occur are
emitted at the configured status output.
• In the event of a power supply failure all data of the measuring system are securely
stored in the EEPROM (without a backup battery).
• The Promag 30 measuring system fulfils the safety requirements according to
EN 61010 “Protection Measures for Electronic Equipment for Measurement,
Control, Regulation and Laboratory Procedures”, and the general requirements
for electromagnetic compatibility (EMC) according to EN 50081 Part 1 and 2 /
EN 50082 Part 1 and 2 as well as the NAMUR recommendations.
• IP 67 protection (EN 60529) is standard for the transmitter and sensor (remote or
compact version). The sensor is also optionally available in IP 68.
Promag 30 2. System Description
Endress+Hauser 11
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