Burkert 8400 Manuel D'instructions page 6

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Temperature Controller 8400
2 DESCRIPTION
2.1 Design
The temperature controller 8400 or 8400 Extended is made up of an
electronic module and a measuring element. It may switch a solenoid
valve, activate an alarm or establish a control loop.
The switching point can be adjusted by means of the three keys located
under the display. The adjustment can optionally be carried out by
means of a 4-20 mA loop via an external controller.
The controller housing can be turned by 180°.
The electrical connection is carried out via a DIN 43650 connector
(type 2508) and/or an M12 multipin connector.
2.2 Measuring principle
The controller uses a Pt100 measuring resistance.
The controller 8400 is fitted with a 46-mm long sensor.
The controller 8400 Extended is available with a 100-mm or a 200-mm
long sensor.