NIVELCO EasyTREK SCD-31 4 Series, Инструкция по установке и программированию, Страница: 20 / 32

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scd340en21p07
5.4.2. Current value
P08: - - - - Fixed output current FACTORY DEFAULT: 0
With this step the output current can be set as a fix value, selected between 3.8 mA and 20.5 mA. Output current will be fixed until the value of
P08 is programmed back to 0 again.
P10: - - - - Value (of distance, level or volume) assigned to 4 mA current output FACTORY DEFAULT: 0
P11: - - - - Value (of distance, level or volume) assigned to 20 mA current output FACTORY DEFAULT: XM – Xm
(See P04 and P05)
Values are interpreted according to P01(a) . Please note that in case of programming for (LEV or VOL) % measurement the min and max value
has to be entered in the relevant engineering units of LEV (m, ft) or VOL (m
3
, ft
3
).
Assignments can be made so that the proportion between the change of the (measured or calculated) process value and the change of the current
output be either direct or inverse. E.g., lev 1m (3.3 ft) assigned to 4 mA and lev 10 m (33 ft) assigned to 20 mA represents direct proportion and
lev 1 m (3.3 ft) assigned to 20 mA and lev 10 m (33 ft) assigned to 4 mA represents inverse proportion.
P12: - - - a Error indication by the current output Factory Default: 0
In case of error the EasyTREK will provide one of the current outputs below for the time the failure prevails.
a O
UTPUT CURRENT AT ERROR INDICATION
0 HOLD last value
1 3.6 mA
2 22 mA