Lumel ND20 User Manual

25
3
Lower value
of the input
range
ALoF
-144.0 ...
144.0
in % of the rated quantity value 99
4
Upper value
of the input
range
ALon
-144.0 ...
144.0
in % of the rated quantity value 101
5
Time
delay of the
switching
reaction
ALdt 0 ... 900
in seconds (for quantities AL_n =P_ord
the delay occurs only when swit-
ching the alarm on)
0
6
Support of
the alarm
occurrence
signaling
AL_S oFF, on
In the situation when the support
function is enabled, after the
retreat of the alarm state the alarm
symbol is not blanked but begins to
pulsate. The signaling exists till the
moment of blanking it by means of
the and push-buttons
combination (during 3 seconds).
The function concerns only and
exclusively the alarm signaling, then
relay contacts will be active without
support, acc. to the selected type
of alarm.
oFF
7
Interlocking
of a renewed
alarm swit-
ching on
AL_b 0...900 in seconds 0
8
Manu-
facturer’s
parameters
dEF no, yES
Restoration of manufacturer’s
parameters of the group.
no
The write of the value ALon lower than ALoF switches the alarm off.

Lumel ND20 Specifications

General

Brand	Lumel
Model	ND20
Category	Measuring Instruments
Language	English