EN 18.056.7/02.18
153
2
Pressure Switch
EDS 300
Relative pressure Display
Description:
The EDS 300 is a compact, electronic
pressure switch with integrated digital display.
The integrated pressure sensor is based on a
measurement cell with thin- lm strain gauge
on a stainless steel membrane.
Four different output models are available:
with one switch point or with two switch points
and both models can also have an additional
analogue output signal 4 .. 20 mA.
The switch points and the associated
hystereses can be adjusted using the key
pad. For optimum adaptation to a particular
application, the instrument has many
additional adjustment parameters, e.g.
switching delay times, N/O / N/C function of
the outputs.
The main applications of the EDS 300 are
to indicate pressures and limits in hydraulics
and pneumatics and anywhere where high
switching frequency or constant switching
accuracy would overburden a mechanical
pressure switch.
Technical data:
Input data
Measuring ranges bar 16 40 100 250 400 600
Overload pressures bar 32 80 200 500 800 1000
Burst pressure bar 200 200 500 1000 2000 2000
Mechanical connection G1/4 A ISO 1179-2
Tightening torque, recommended 20 Nm
Parts in contact with fl uid Mech. connection: Stainless steel
Seal: FKM
Output data
Switching outputs 1 or 2 PNP transistor outputs
Switching current: max. 1.2 A per
switching output
Switching cycles: > 100 million
Analogue output, permitted load resistance 4 .. 20 mA load resist. max. 400 Ω
Accuracy acc. to DIN 16086,
terminal based
≤ ± 0.5 % FS typ.
≤ ± 1 % FS max.
Temperature compensation, zero point ≤ ± 0.02 % FS / °C typ.
≤ ± 0.03 % FS / °C max.
Temperature compensation, span ≤ ± 0.02 % FS / °C typ.
≤ ± 0.03 % FS / °C max.
Repeatability ≤ ± 0.5 % FS max.
Reaction time approx. 10 ms
Long-term drift ≤ ± 0.3 % FS typ. / year
Environmental conditions
Compensated temperature range -10 .. +70 °C
Operating temperature range -25 .. +80 °C
Storage temperature range -40 .. +80 °C
Fluid temperature range -25 .. +80 °C
mark
EN 61000-6-1 / 2 / 3 / 4
Vibration resistance acc. to
DIN EN 60068-2-6 at 10 .. 500 Hz
≤ 10 g
Shock resistance acc. to
DIN EN 60068-2-27 (11 ms)
≤ 50 g
Protection class acc. to DIN EN 60529
1)
IP 65
Other data
Supply voltage 20 .. 32 V DC
Residual ripple of supply voltage ≤ 5 %
Current consumption approx. 100 mA (inactive switching output)
Display 3-digit, LED, 7 segment, red,
height of digits 9.2 mm
Weight ~ 300 g
Note: Reverse polarity protection of the supply voltage, overvoltage, override and short circuit
protection are provided.
FS (Full Scale) = relative to complete measuring range
1)
With mounted mating connector in corresponding protection class
Up to 2 switching outputs
Analogue output
EN 18.056.7/02.18
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2
Pin connections:
M12x1, 5 pole
M12x1, 4 pole
Pin EDS 346-1 EDS 346-2 EDS 346-3
1 +U
B
+U
B
+U
B
2 n.c. SP2 Analogue
3 0 V 0 V 0 V
4 SP1 SP1 SP1
1 2
34
5
Binder series 714 M18
Pin EDS 344-2 EDS 344-3
1 +U
B
+U
B
2 0 V 0 V
3 SP1 SP1
4 SP2 Analogue
Pin EDS 345-1
1 +U
B
2 0 V
3 SP1
┴
Housing
EN175301-803
Pin EDS 348-5
1 +U
B
2 Analogue
3 0 V
4 SP1
5 SP2
Setting options:
All settings available on the EDS 300 are
grouped in 2 easy-to-navigate menus.
In order to prevent unauthorised adjustment of
the device, a programming lock can be set.
Setting ranges for the
switching outputs:
Switch point function
Meas.
range
in bar
Switch point
in bar
Hysteresis
in bar
Increment*
in bar
0 .. 16 0.3 .. 16 0.1 .. 15.8 0.1
0 .. 40 0.6 .. 40 0.2 .. 39.6 0.2
0 .. 100 1.5 .. 100 0.5 .. 99.0 0.5
0 .. 250 3.0 .. 250 1.0 .. 248 1.0
0 .. 400 6.0 .. 400 2.0 .. 396 2.0
0 .. 600 15.0 .. 600 5.0 .. 590 5.0
Window function
Meas.
range
in bar
Lower switch
value
in bar
Upper switch
value
in bar
Increment*
in bar
0 .. 16 0.2 .. 15.9 0.3 .. 16 0.1
0 .. 40 0.4 .. 39.8 0.6 .. 40 0.2
0 .. 100 1.0 .. 99.5 1.5 .. 100 0.5
0 .. 250 2.0 .. 249.0 3.0 .. 250 1.0
0 .. 400 4.0 .. 398.0 6.0 .. 400 2.0
0 .. 600 10.0 .. 595.0 15.0 .. 600 5.0
* All ranges given in the table can be adjusted
by the increments shown.
Additional functions:
z Switching mode of the switching outputs
adjustable (switch point function or window
function)
z Switching direction of the switching outputs
adjustable (N/C or N/O function)
z Switch-on and switch-off delay adjustable
from 0.0 .. 75.0 seconds
z Choice of display (actual pressure, peak
value, switch point 1, switch point 2, display
off)
z Optional analogue output signal 4 .. 20 mA
z Subsequent correction of zero point in the
range ± 3 % FS possible
EN 18.056.7/02.18
155
2
Dimensions:
Hex AF
width 27
Male connector Binder
series 714 -4p
Elastomer
prole seal ring
DIN 3869
Prole
seal ring
Male connector
4 pole / 5 pole
EN 18.056.7/02.18
156
2
Note:
The information in this brochure relates to
the operating conditions and applications
described.
For applications or operating conditions not
described, please contact the relevant technical
department.
Subject to technical modications.
HYDAC ELECTRONIC GMBH
Hauptstraße 27, 66128 Saarbrücken
Germany
Telephone +49 (0)6897 509-01
Fax +49 (0)6897 509-1726
E-mail: electronic@hydac.com
Internet: www.hydac.com
Model code:
EDS 3 4 X – X – XXX – 000
Mechanical connection
4 = G1/4 A ISO 1179-2
Electrical connection
4 = male, Binder series 714 M18, 4 pole
only possible on output models "2" and "3"
(mating connector not supplied)
5 = male, EN175301-803, 3 pole + PE
only possible on output model "1"
(mating connector supplied)
6 = male M12x1, 4 pole
only possible on output models "1", "2" and "3"
(mating connector not supplied)
8 = male M12x1, 5 pole
only possible on output model "5"
(mating connector not supplied)
Output
1 = 1 switching output
only in conjunction with electrical connection type "5" or "6"
2 = 2 switching outputs
only in conjunction with electrical connection type "4" or "6"
3 = 1 switching output and 1 analogue output
only in conjunction with electrical connection type "4" or "6"
5 = 2 switching outputs and 1 analogue output
only in conjunction with electrical connection type "8"
Measuring ranges in bar
016; 040; 100; 250; 400; 600
Modication number
000 = standard
Accessories:
Appropriate accessories, such as mating connectors, mechanical adapters, splash guards and
clamps for wall-mounting etc, can be found in the Accessories brochure.
