ATR 421 - User manual 49
87 up.L.r. Upper Limit Retransmission: Upper limit analogue output
range.
-999…+9999 [digit
10
] (degrees.tenths for temperature sensors).
> Default: 1000.
12 Alarm intervention modes
ATR421 has the possibility to program up to four alarms.
Into the following table all intervention modes are showed.
Absolute alarm
5JNFt5FNQP
)ZTUFSFTJTt*TUFSFTJ
7BMPSFEJDPOGSPOUP
OUT
ON
OFF
$PNQBSJTPOWBMVF
(P-47, 54, 61, 68)
PROCESS
PROCESSO
Alarm can be:
• Active over
• Active under
In the gure it is active over.
Band alarm (setpoint-process)
5JNFt5FNQP
)ZTUFSFTJTt*TUFSFTJ
)ZTUFSFTJTt*TUFSFTJ
OFF
7BMPSFEJDPOGSPOUP
$PNQBSJTPOWBMVF
(P-47, 54, 61, 68)
PROCESS
PROCESSO
4&510*/5
Alarm can be:
• Active outside
• Active inside
In the gure it is active outside.
10
The display of the decimal point depends on the setting of parameters Sen. and d.p.