Digital Display; Output Functions; Relay Outputs; Analogue Output - HYDAC ELECTRONIC ETS 1700 Mode D'emploi

5.

Digital display

After switching on the supply voltage, the unit briefly displays "ETS" and then
displays the current temperature.
E
Notes:
 In the basic settings the display can be altered so that, once switched on,
the unit displays a switching point or the maximum value permanently. In
this case "S.P. 1", "S.P. 2", "S.P. 3", "S.P. 4", or "MAX" appears briefly on the
display following the switch-on message. The current temperature can be
displayed briefly by pressing the "+" or "–" key.
 If the current temperature exceeds the nominal temperature of the unit, it can
no longer be displayed and the display begins to flash.
 If the current temperature is below 0.5 °C, then 0 is displayed.
6. Output function

6.1. RELAY OUTPUTS

The ETS 1700 has 4 relay outputs. One switching point and one switch-back
point and/or one hysteresis can be set for each relay. The appropriate relay
pulls in when the pre-set switching point is reached and drops back when the
temperature falls below the switch-back point.
Whether the unit operates with adjustable hystereses or adjustable switch-back
points is determined via the "switch-back mode", in the basic settings (see Point 8).
Switch-back mode is set to "hysteresis":
The pre-set hysteresis determines the switch-back point (switch-back point =
switching point minus hysteresis).
Switch-back mode is set to "switch-back point":
The switch-back point is set directly.
Abbreviations:

6.2. ANALOGUE OUTPUT

Analogue output signal 4 .. 20 mA or 0 .. 10 V
(adjustable in the "Basic setting" menu)
24
"S.P.1" .. "S.P.4" = switching points 1..4
"HYS.1" .. "HYS.4" = hystereses 1..4
"r.S.P.1" .. "r.S.P.4" = switch-back points 1..4