HYDAC ETS 300 - Manual (Page 2)

1. Functions of the ETS 300
The ETS 300 is available with a built-in and with a separate temperature sensor. Depending
on the model, the unit offers the following functions:
· Display of the actual temperature, maximum value or a switching point.
· Switching the switching outputs according to the temperature and the pre-set switching
parameters.
· Analogue output
· Menu for basic settings (adapting the ETS 300 to the particular application)
· Two different types of programming enable
Four different output models are available: with one switching point, with two switching points
and both models can also have an additional analogue output signal 4 .. 20 mA.
2. Mounting
The ETS 300 with built-in sensor can be mounted directly onto a hydraulic block via the male
thread (G1/2 A, DIN 3852). The temperature sensor is built into the stem which is located
before the thread. In order for temperature to be measured correctly, please ensure that this
stem is in the fluid.
The ETS 300 with separate sensor is mounted to the wall by means of a clamp which is
available as an accessory (see Point 12.2 "Accessories - for mechanical connection").
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 temperature
switch housing must be earthed correctly. When fitted into a hydraulic block it is sufficient if
the block is earthed via the hydraulic system. In the case of wall-mounting, the housing
must be earthed separately.
Additional assembly notes which, from experience, reduce the effect of electromagnetic
interference:
· Make line connections as short as possible.
· Direct proximity to connecting lines of user units or electrical or electronic units causing
interference must be avoided as far as possible.
3. Operating keys on the membrane keypad
3-digit
keys for setting switching
digital display
additional functions
HYDAC ETS 300
SP1 SP2
mode
points, switch-back points and