Knick Stratos MS A405 Series - Replacing a Sensor

27
Step Action/Display Remark
Select HOLD mode
A sensor should only be
replaced during HOLD
mode to prevent unin-
tended reactions of the
outputs or contacts.
Press menu key to call the
selection menu,
select HOLD using the
keys, press enter to
conrm.
Now the device is in HOLD
mode. The HOLD mode can also
be activated externally via the
HOLD input. During HOLD the
output current is frozen at its
last value or set to a fixed value.
Disconnect and remove
old sensor
Install and connect new
sensor.
Temporary messages which are
activated during the replace-
ment are indicated but not
output to the alarm contact and
not entered in the logbook.
Wait until the sensor data
are displayed.
MEMO
SENS
Check sensor data
MEMO
SENS
View sensor information
using  keys, conrm
using enter.
You can view the sensor manu-
facturer and type, serial number
and last calibration date.
Check measured values
Exit HOLD Hit meas key: Return to
the selection menu.
Hold meas key
depressed: Device
switches to measuring
mode.
Replacing a Sensor