Installation; Assembling The Displacement Sensor; Displacement Sensor For Front-Side Mounting - Brüel & Kjær Vibro ds822 Serie Betriebsanleitung

2 mm displacement sensor system series ds822 ATEX
EN
Instruction
Operation as category 2 device
C
If the sensor cable is used in zone 1 and must comply with the requirements of
explosion group IIC, it must be protected from static charging by a steel
protective conduit or steel tube.
The steel protective conduit or steel tube must be galvanically connected to the sensor

housing.
If the sensor cable is used in zone 1 and must comply with the requirements of explosion group
IIB oder IIA, it may be mounted without additional steel protective conduit or steel tube.
Recommended accessories for trouble-free operation:
1. Install the driver in a housing/control cabinet.
2. For this we recommend AC-2108 for up to 3 drivers and AC-2109 for up to 6 drivers.
3. Use shielded signal wiring (preferably AC-1112 between the driver and connected elec-
tronics.Use shielded signal wiring (preferably AC-1114) between the driver and connected
electronics. The connection cable has to be heat-resistant at least + 85 °C.
4. Install the sensor cable between machine housing and driver housing in a protective steel
conduit.
5. Ensure that there is a minimum distance of 1 m between the signal and sensor cable and
any other power or control cables.
4.1

Assembling the displacement sensor

4.1.1 Displacement sensor for front-side mounting

The front side-mountable displacement sensors are supplied with two nuts. You can use these
nuts to lock it in place after adjustment (4.4 Setting up the measuring chain and the displace-
ment sensor). Depending on the application, the sensor can be mounted forward-facing either
within a machine or outside of a machine or through the machine housing. To avoid measure-
ment errors, we recommend in all cases that the sensor be mounted with the help of a suitable
sensor holder. The sensor holder must be mounted in a position where it cannot move relative to
the object to be measured during machine operation.
1. Remove the protective cap from the sensor tip.
2. Attach the displacement sensor using a sensor holder suitable for the chosen type of
assembly.
3. Position the sensor so that it lies vertically to the measuring track.
4. To avoid damage, make sure that the tip of the sensor does not touch the measuring object.
Adjust the sensor through the display of the measured gap voltage.
5. Install the extension cable. For fixing with cable clamps, we recommend the use of a suita-
ble protective conduit.
6. For assembly within the machine:
Seal the opening in the housing with a bulkhead receptacle to prevent medium inside the
machine (e.g. gas or oil) escaping to the outside.We are not liable for damage resulting
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