36
37
Electronic
Pressure Switch
EDS 3400
The EDS 3400 is a compact, electronic
pressure switch with an integral digital
display for measuring relative pressure
in the high pressure range.
The instrument has a stainless steel
measurement cell with thin-lm strain
gauge. The instrument can have one
or two switching outputs and there is
the option of an additional analogue
output signal (4 .. 20 mA or 0 .. 10 V
selectable). A special design feature of
the EDS 3400 is that the display can
be moved in two planes. The unit can
be installed in almost any mounting
position and the display can be turned
to the optimum position without
the usual additional expense of a
mechanical adapter. The 4-digit display
can indicate the pressure in , or
. The user can select the particular
measurement unit. When changing to a
different measurement unit, the
EDS 3400 automatically converts all
the switching settings to the new unit of
measurement. In addition, the
EDS 3400 is also available in a
DESINA
®
-compliant version.
The main applications of the
EDS 3400 are primarily in hydraulics
and pneumatics, as well as in
refrigeration and air conditioning
technology.
1 or 2 PNP transistor
switching outputs, up to 1.2 A load
per output
Accuracy ≤ ± 1 % FS
Optional analogue output selectable
(4 .. 20 mA / 0 .. 10 V)
4-digit display
Optimum alignment, can be
rotated in two planes (axes)
Measured value can be displayed in
bar, psi or MPa
Easy operation due to key
programming
Switching points and switch-back
hystereses can be adjusted
independently
Many useful additional functions
Option of Desina
®
-compliant
pin conguration with
diagnostic function
Measuring ranges 40; 100; 250; 400; 600 bar
Overload pressures 80; 200; 500; 800; 1000; bar
Burst pressures 200; 500; 1000; 2000; 2000 bar
Mechanical connection G1/4 A DIN 3852
Threaded port DIN 3852-G1/4
Torque value 20 Nm
Parts in contact with medium Mech. connection: Stainless steel
Seal: FPM ( G1/4 A DIN 3852)
Accuracy to DIN 16086 ≤ ± 0.5 % FS typ.
Max. setting ≤ ± 1 % FS max.
(display, analogue output)
Repeatability ≤ ± 0.25 % FS max.
Temperature drift ≤ ± 0.025 % FS / °C max. zero point
≤ ± 0.025 % FS / °C max. range
Signal selectable:
4 .. 20 mA ohmic resistance max. 500W
0 .. 10 V ohmic resistance min. 1 kW
Type PNP transistor output
Switching current max. 1.2 A
Switching cycles > 100 million
Reaction time < 10 ms
Long-term drift ≤ ± 0.3 % FS typ. / year
Function OK: HIGH level / not OK: LOW level
Level HIGH: approx. +U
B
/ LOW: < +0.3 V
Compensated temperature range -10 .. +70 °C
Operating temperature range -25 .. +80 °C (-25 .. +60 °C acc. to UL spec.)
Storage temperature range -40 .. +80 °C
Fluid temperature range -25 .. +80 °C
mark EN 61000-6-1 / 2 / 3 / 4
mark* Certicate No.: E 318391
Vibration resistance to ≤ 10 g
DIN EN 60068-2-6 at 10 .. 500 Hz
Shock resistance to ≤ 50 g
DIN EN 60068-2-29 (11 ms)
Protection class to DIN 40050 IP 67
Supply voltage 9 .. 35 V DC without analogue output
18 .. 35 V DC with analogue output
for use acc. to UL spec. - limited energy - according to
9.3 UL 61010; Class 2;
UL 1310/1585; LPS UL 60950
Current consumption max. 2.455 A total
max. 35 mA with inactive switch outputs
max. 55 mA with inactive switch outputs
and analogue output
Display 4-digit, LED, 7 segment, red,
height of digits 7 mm
Weight approx. 120 g
Note: Excess voltage, override protection and short circuit protection are provided.
(ull cale) = relative to complete measuring range
* Environmental conditions according to 1.4.2 UL 61010-1; C22.2 No 61010-1
4 = G1/4 A DIN 3852 (male)
9 = threaded port DIN 3852-G1/4
6 = M12x1, 4 pole, male
only possible on output models "1", "2" and "3"
8 = M12x1, 5 pole, male
only possible on output model "5"
1 = 1 switching output
only in conjunction with electrical connection type "6"
2 = 2 switching outputs
only in conjunction with electrical connection type "6"
3 = 1 switching output and 1 analogue output
only in conjunction with electrical connection type "6"
5 = 2 switching outputs and 1 analogue output
only in conjunction with electrical connection type "8"
0040; 0100; 0250; 0400; 0600
000 = Standard
All the settings available on the EDS 3400
are combined in two easy-to-follow menus.
To prevent unauthorised adjustment of the
unit, a program disable can be activated.
Switch point function
Meas.
range
in bar
Switch
point
in bar
Hysteresis
in bar
Incre-
ment*
in bar
0 .. 40 0.6 .. 40 0.2 .. 39.6 0.1
0 .. 100 1.6 .. 100 0.6 .. 99.0 0.2
0 .. 250 4.0 .. 250 1.5 .. 247.5 0.5
0 .. 400 6.0 .. 400 2.0 .. 396 1
0 .. 600 9.0 .. 600 3.0 .. 594 1
Window function
Meas.
range
in bar
Lower
switch
value
in bar
Upper
switch
value
in bar
Incre-
ment*
in bar
0 .. 40 0.6 .. 39.2 0.9 .. 39.6 0.1
0 .. 100 1.6 .. 98.2 2.4 .. 99 0.2
0 .. 250 4.0 .. 245.5 6.0 .. 247.5 0.5
0 .. 400 6.0 .. 392 9.0 .. 396 1
0 .. 600 9.0 .. 589 14 .. 594 1
* All ranges given in the table
are adjustable by the increments shown.
Switching mode of the switching outputs
adjustable (switch point function or
window function)
Switching direction of the switching
outputs adjustable (N/C or N/O function)
Switch-on and switch-back delay
adjustable from 0.00 .. 99.99 seconds
Choice of display (actual pressure,
peak value, switch point 1,
switch point 2, display off)
Display lter for smoothing the display
value during pressure pulsations
Analogue output signal selectable
4 .. 20 mA or 0 .. 10 V (optional)
Pressure can be displayed in
measurement units bar, psi, MPa.
The scaling can also be adapted to
indicate force, weight, etc.
The DESINA
®
-compliant pressure
switch has been specially developed
for customers in the machine tool and
machine building sectors and complies
with the DESINA
®
specication.
A diagnostic signal enables errors to be
detected and an "ERROR" message also
appears in the display. The electrical
connection is a round 5-pole M12x1, male,
to IP 67 in accordance with DESINA
®
requirements.
4 = G1/4 A DIN 3852 (male)
9 = threaded port DIN 3852-G1/4
8 = M12x1, 5 pole, male
1 = 1 switching output
3 = 1 switching output and 1 analogue output
0040; 0100; 0250; 0400; 0600
D00pin conguration conforms to DESINA
®
standard for self-diagnostics
For units with a different modication number, please read the label or
the technical amendment details supplied with the unit.
Appropriate accessories, such as electrical connectors, mechanical adaptors, splash
guards, clamps for wall-mounting etc can be found in the Accessories section.
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39
The information in this brochure relates to
the operating conditions and applications
described.
For applications and operating conditions
not described, please contact the relevant
technical department.
All technical details are subject to change
without notice.
M12x1, 4 pole
Hauptstraße 27, D-66128 Saarbrücken
Tel. +49 (0)6897 509-01
Fax +49 (0)6897 509-1726
E-Mail: electronic@hydac.com
Internet: www.hydac.com
Pin EDS
34X6-1
EDS
34X6-2
EDS
34X6-3
1 +U
B
+U
B
+U
B
2 n.c. SP 2 Analogue
3 0 V 0 V 0 V
4 SP 1 SP 1 SP 1
Pin EDS
34X8-5
1 +U
B
2 Analogue
3 0 V
4 SP 1
5 SP 2
M12x1, 5 pole
M12x1, 5 pole
hex-SW27
display
turns thru
270°
housing
turns thru
340°
electr. conn. M 12x1
4 pole/5 pole, male
elastomer prole gasket
DIN 3869
Conforms
to
DESINA
®
Can be
connected to
DESINA
®
Pin EDS
34X8-1
EDS
34X8-3
1 +U
B
+U
B
2 Diagnostics Diagnostics
3 0 V 0 V
4 SP 1 SP 1
5 n.c. Analogue
1 2
34
5
1 2
34
5
