WIKA DIH62 - Handbuch (Seite 15)

WIKA operating instructions models DIH50, DIH52, DIH62 15
GB
14008548.02 03/2012 GB/D
A flashing ♥ symbol is shown on the display when a HART ® communication takes place for
the first time and the digital indicators are thus switched to the HART ® mode. The ♥ symbol
is displayed permanently when the HART ® communication is terminated and the digital
indicator is configured according to the measuring range and the unit of the connected
transmitter.
After the power supply was interrupted or the digital indicator was set manually, the ♥
symbol is no longer displayed.
During operation in the basic mode, the ♥ symbol is not displayed.
CAUTION!
The instruments react only to the HART ® standard commands 15 and 35. If
a connected HART ® transmitter is configured by means of other commands,
automatic setting is not possible!
The HART ® function, i.e. the automatic adaptation of the display to the
configured data of the transmitter, requires a HART ® communication between
the transmitter and the HART ® software (e.g. WIKA_T32) or between the
transmitter and the field communicator (e.g. FC375/FC475, MFC4150 etc.).
6.1.2 Operating mode: HART ® master (models DIH52, DIH62)
The master mode enables the modification of the measuring range, the unit, the format,
the damping and the polling address of the connected HART ® transmitter. Further
modifications to the configuration of the transmitter (e.g. selection of the sensor) are not
possible.
During the starting procedure, the field indicators try to contact the connected HART ®
transmitter in the master mode and to apply its settings (unit and measuring range). During
the connection establishment, the status line shows the message "Connecting HART ®" .
When a HART ® sensor is detected, the HART ® symbol is displayed. The field indicator
switches to the HART ® mode and starts operation using the settings received from the
transmitter. This procedure is repeated whenever the power supply is switched on.
When pressing any key during the starting process or the device has not detected any
HART ® transmitter during approx. 70 seconds, the digital indicator switches to the basic
mode and starts operation on the basis of the factory settings.
6. Commissioning, operation