Installation; General Installation Notes - HYDAC ELECTRONIC ENS 3000 Notice D'utilisation

ENS 3000 IO-Link
4

Installation

4.1

GENERAL INSTALLATION NOTES

The electronic level switch ENS 3000 should be fastened at the metal collar of the adaptor
using a mounting device which grips as much of the metal collar as possible. Any device
large enough to hold a metal collar of 22 mm diameter can be used.
The electrical connection must be carried out by a qualified electrician according to the
relevant regulations of the country concerned (VDE 0100 in Germany). The level switch
housing must be earthed correctly at the same time. If mounted inside a tank, the housing
must be earthed separately (i.e. screened cables or connection of functional earth to the
ground screw at the hexagonal nut).
For simple and reliable installation, we recommend using HYDAC ELECTRONIC's
mounting accessories (see Section 18.2 Accessories, Mechanical Connection).
To ensure safe operation of the ENS 3000 the following conditions must be met:
• The active part of the probe must
protrude into the tank and be clear of
the tank walls.
• When installing inside of small plastic
tanks, the unit must be installed as
near as possible to the centre of the
tank.
• When installing inside of metallic rising
pipes (e.g. mounted on the side of the
tank) the sensor must be mounted in
the centre of the tube. We recommend
an internal tube diameter of ≥ 60 mm.
• Any metallic objects (e.g. metallic
pipes or baffles) inside the tank must
be at least 60 mm away from the
active zone of the sensor. Otherwise
they will be recognised as mounting
devices and the measurements will be
distorted.
• When mounting inside of tanks, the
distance between the sensor and the
walls of the tank must be at least
20 mm.
• In order to prevent the material of the tank cover from affecting the measurement
results, the active zone must maintain a minimum distance below the tank cover.
The required minimum distances depend on the probe length.
The necessary minimum distances are refered to in Section 4.2 (Installation using
HYDAC Accessories).
Version 2014/12/11
HYDAC ELECTRONIC GMBH
page 6
Minimum Rod
distance length
16 mm 250 mm
34 mm 410 mm
38 mm 520 mm
33 mm 730 mm
metallic component
active zone
Part No. 669898