4 Transmitter
20
Physical
measuring range
at 1013 hPa
Standard scaling of
transmitter
measuring range
temperature
°F
tw
-58 210
-40 356
ppm
(vol)
H
2
O
0 99999
0 99999
Water content
% vol
0
100
0
100
hPa
0
1000 0
7000
Water vapour
partial pressure
inchH
2
O 0 400 0 2800
Pos: 38 /TD/Produktbeschreibung/Übersicht/MUF 63xx/Alarmbehandlung @ 3\mod_1234776787635_79.doc @ 25821 @ 3
4.2.9. Alarm
handling
For upper and lower alarm limits, individual alarms as well as
collective alarms can be specified. If the collective alarm function is
activated, an alarm is triggered as soon as the alarm limit of an
alarm is exceeded, if this alarm is assigned to the collective alarm.
The testo 6381 monitors limit values with the help of relays. If a
reading is outside the limit values, a relay to be specified by the
user is switched.
If the reading reverts to more than a specified hysteresis below or
above the limit value, the alarm is cancelled.
In addition, information about the occurrence of error/status
messages can be provided by means of a collective alarm relay,
see Status, warning and error messages, page 79
If multiple alarm messages are activated at the same time,
the last alarm is shown. If the alarm is cancelled again, the
previous messages are no longer shown.
Pos: 39 /TD/Überschriften/MUF/1.3/2.3 Inbetriebnahme @ 3\mod_1234258805768_79.doc @ 24027 @ 2
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