50
APT4000PH
Configuration
Alarm settings
Select Sensocheck
Delay
LED in Hold mode
Code
Display
Menu group
Select menu item
Alarm
settings
AL.
End:
Press CONF, then ENTER
15
16
Alarm
Alarm contact
The alarm contact is closed during normal operation
(N/C). It opens in the case of alarm or power outage.
As a result, a failure message is provided even in the
case of line breakage (fail-safe behavior). For contact rat-
ings, see Specifications.
Error messages can also be signaled by a 22 mA output
current (see Pg 39,
The operating behavior of the alarm contact is shown on
Pg 90.
The alarm delay acts on the LED, the 22 mA signal
and the alarm contact.
45,
86).
51
Code
Display
Action
Choices
ON /
OFF
AL.
Select Sensocheck
(continuous monitoring of glass and
reference electrode – not available
with DURAFET II pH electrode)
Select with key,
proceed with ENTER
Alarm delay
Select with key, edit number with
key, proceed with ENTER
0010 SEC
(0000 to
0600 SEC)
LED in Hold mode
Select with key, edit number with
key, proceed with ENTER
ON /
OFF
Parameter setting
Alarm Hold
ON
on flashes
OFF
flashes off
LED state:
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