Knick Stratos Pro A401B PH, User Manual

Page: 95 / 196

95
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 power failure or line breakage (fail-safe behav-
ior). For contact ratings, see Specifications.
17
18
Alarm
R3
Error messages can also be signaled by a 22-mA output current (see Error messages
and Configuration Output 1/Output 2).
Operating behavior of the alarm contact: see Operating States table.
The alarm delay time delays the color change of the display backlighting to red,
the 22-mA signal (if configured), and the alarm contact switching.
Configuration
Menu item Action Choices
Alarm delay
Enter value using


keys.
Press enter to confirm.
Sensocheck Select Sensocheck
(continuous monitoring
of glass and reference
electrode)
Select ON or OFF using

keys.
Press enter to confirm.
(At the same time,
Sensoface is activated.
With OFF, Sensoface is
also switched off.)
5