HNS 3000 IO-Link
page 9
Edition: 2020-04-02
HYDAC ELECTRONIC GMBH
Part no.: 669945 E
6.2 Additional installation instructions
Additional installation instructions which, from experience, reduce the effect of
electromagnetic interference:
Make line connections as short as possible.
Use shielded cabling (e.g. LIYCY 4 x 0.5 mm²).
The cable shielding must be fitted by qualified personnel, subject to the environmental
conditions and with the aim of suppressing interference.
Keep the instrument well away from the electrical supply lines of power equipment, as
well as from any electrical or electronic equipment causing interference.
The level switch HNS 3000 should be mounted vertically inside the tank. If not mounted
vertically, the accuracy of the HNS 3000 may decrease with increasing tilt angle
(additional inaccuracy at a tilt angle of 5 °: approx. ± 0.5 %; additional inaccuracy at a tilt
angle of 10 °: approx. ± 1.5 %).
If not mounted vertically, the float risks jamming (adhesion force > buoyancy).
The HNS 3000 electronic level switch is not suitable for operation at
pressures exceeding atmospheric pressure. Short-term peak pressures
up to 10 bar, however, may be possible and will not cause damage to the
device if not exceeding 1 minute of time.
CAUTION !
7 Commissioning
Method of determining the offset value:
We suggest the following procedure for determining the value of the fluid level offset:
Installation resp. mounting of HNS 3000 inside the tank
Check: is the display flashing or does it show a value greater than zero?
If the display is flashing, the level lies outside the active measuring range (level too
high, resp. level too low).
If the system reports low level, the level will gradually be filled up by a fluid until 0 is
displayed. Then, the HNS 3000 is removed from the tank and the fluid level inside the
tank is determined by a measuring unit. Depending on the model, this value is
displayed in the menu in "cm" or "inch" after having been determined .
If the display shows value > 0 or if high level is reported, the level is gradually reduced
by draining the fluid until the value 0 appears in the display. After removing the
HNS 3000 from the tank the procedure is as described above.
Low fluid level : top up the fluid until a valid measurement is detected.
High fluid level : drain the fluid until a valid measurement is detected.
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