Lumel NA6PLUS, Руководство пользователя, Страница: 17 / 44

NA6Plus-09 17 User’s Manual
switched off
 – reaction to the slope

Alarm delay
The parameter is defined in seconds.
Defines the time to elapse from the time of
alarm occurence to the time when alarm
output is triggered. The alarm is activated
after averaging the measurement.
The alarm is switched off without delay.
Possible settings: 0,0...999.9 s
Entering 0.0 causes the alarm to be activated
when it occurs.

Maintaining alarm signaling
When the function is switched on, after the
alarm state has disappeared, the alarm
reamins activated (relay contacts or OC
output).
SThe alarm state is active until it is erased
by the combination of
and keys.
 - alarm output hold up is disabled
 - alarm output hold up is enabled

The colour of the lower alarm threshold
marker
 - bar graph off
 - red
g
- green
rg
- red + green
Other colours available only in meters with a
seven-colour bar graph
 - blue
 - red + blue
gb
- green + blue
rgb
- red + green + blue

The colour of the upper alarm threshold
marker

Value of change in the measured signal
The change value of the signal measured
at the time specified in parameter
 .
After exceeding the set threshold, the
alarm is activated (relay contacts or OC
output).
Exceeding the threshold tvalue increase in
time is signaled by an intermittent message
of the length of 1s on the display.
ALx ⎯ - Where x is the alarm number.
Occurs in the case of a measured signal
increase.
ALx_ - Where x is the alarm number.
Occurs when the measured signal
decreases.
When the alarm stops, the message
disappears.
Possible settings: -1999...9999
Entering positive values causes the alarm to be
activated if the rate of change of the measured
signal in the indicated time increases above the
entered value
 (the alarm reacts to the
speed of the increase of the measured signal)
Entering negative values causes the alarm to be
activated if the rate of change of the measured
signal in the indicated time decreases above the
entered value
 (the alarm reacts to the
speed of the decrease of the measured signal)
Entering the value 0 deactivates the  alarm
function

time of change in the measured signal Possible settings: 0...3600 sec.
Entering the value 0 deactivates the  alarm
function