Density Meter LB 444 SECTION 2. SYSTEM DESCRIPTION
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Operating Mode
Config Instrument :
The instrument configuration is defined by the required measuring configuration
and the measuring task and can be selected by pressing <
^^^
> and <
enter
>.
a) Density without TC
Density measurement without temperature compensation
b) Density with Pt100
Density measurement with temperature compensation via resistance ther-
mometer Pt 100.
c) Density with Cur. Inp.
Density measurement with temperature compensation via current input.
The product temperature is fed in as current signal 0/4-20mA (28c+/28a-).
d) Mass flow without TC
Mass flow measurement without temperature compensation.
e) Mass flow with Pt 100
Mass flow measurement with temperature compensation via Pt 100 resis-
tance thermometer.
Radiation/Backscatter measure
Generally, irradiation is selected. In this case, the product is irradiated with
source and detector installed on opposite sides.
In case of a backscatter measurement, source and detector (shielded against
each other) are installed next to each other.
Error mode:
Select if the measurement is to be aborted or continued if an error is detected. If
you select “continue measurement” the error is merely displayed, but the meas-
urement continues. Press <
enter
> to delete the error message.
RS232 interface:
Select the baud rate by pressing <
^^^
> and confirm with <
enter
>.
Select the device to which the data is to be transferred: select either PC/Printer
or Modem.
The RS232 interface is located on the front panel of the evaluation unit.
RS 485 interface:
Interface. (Presently not used.)
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