Digital Output; Hart Polling Address (If There Is A Hart Option In The Device); Calculations; Zero Point Offset (Distance Between The Lowest Position Of The Float And The Bottom Of The Tank) - Nivelco NIVOTRACK M-500 Mode D'emploi

5.3.3. Digital Output

5.3.3.1 HART polling address (if there is a HART option in the device)

Parameter: P19
Menu path: OUTPUT SETUP / SERIAL OUTPUT / ADDRESS
Description: HART polling address (only HART capable types)
The polling address can be set between 0 and 15. For a single instrument the polling
address is 0 and the output is 4...20mA (analogue output). If multiple units are used in
HART Multidrop mode (max. 15pcs) the polling addresses should differ from 0 (1-15), in this
case the output current will be fixed at 4mA.

5.3.4. Calculations

5.3.4.1 Zero point offset (Distance between the lowest position of the float and the bottom of the tank)

Parameter: P04
Menu path: CALCULATION / LEVEL OFFSET
Description: This Parameter is used for zero point offset.
In level measurement mode the zero level is meant at the lowest position of the float. Due to
the construction of the device, it cannot able to measure the level through the whole height
of the tank, because it may not reach the bottom of the tank.
In this Parameter the distance between the lowest position of the float and the bottom of the
tank can be entered.
The offset value will be a negative value (the value of the Parameter is always the distance
between the lowest position of the float and the zero point offset of the measurement) this
negative number should be entered into the Parameter if the measurement range needs to
be decreased virtually. The absolute value of this number shall be less than the active
measurement range. Factory default Parameter value shall be used if there is no need to
use zero point offset. (See: Basic concept of Measurement on the 2
Wrong configuration of the zero point offset can result negative level display. Negative level
is not right or normal. However there is no error indication on negative level display, it
cannot be used for 4-20 mA programming or volume / mass calculations.
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FM16CA0037X ♦ FM16US0068X ♦ IEC Ex BKI 12.0002 ♦ BKI16ATEX0012X ♦ mba5052i0600p_06 ♦ 27 / 36
Default value:
Default value:
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