Metrohm 717 Sample Changer - Manual (Page 5)

1.3 Sensors
717 Sample Changer, Overview 3
The Connectors (rear):
Made by Metrohm Herisau
Switzerland
Type 1.717._
Address
External Bus
0120/02 187
1.3 Sensors
Beaker test
Front view
Each tower of the 717 Sample
Changer is equipped with a
beaker indicator to detect the
presence of a beaker in front
of the particular tower. This
infrared sensor detects many
different materials, if any ob-
ject is placed in correct posi-
tion.
Magnetic rack code indicator
The magnetic sensor to detect
the individual rack codes is
mounted below the sample
changer's turntable.
The 717 Sample Changer
should be initialized right after
every rack change, because the
magnetic binary code of the
racks can only be read, if the
rack is in initial position and
therefore the magnet holder is
in accurate position right above
the rack code indicator.
Splash protection
Beaker indicator
Rack
Magnetic indicator
Manufacturing number
Magnet holder
External Bus
socket
External Bus
address selector