Festo SDE3 series User manual

Pressure sensor SDE3
Festo AG & Co. KG
Ruiter Straße 82
73734 Esslingen
Germany
[phone]
www.festo.com
Operating instructions
Original instructions
8078143
2017-09f
[8078145]
English............................................................
For all available product documentation èwww.festo.com/pk
1 Operating elements and connections
123
4
789
aJ
aA
aB
aC
aD
5
6
1SDE3 for mounting onto a wall or
H-rail
2Adapter plate for wall mounting
3Electrical connection
4SDE3 for front panel mounting
5Clamping plate for front panel
mounting
6Mounting slide (rear)
7Compressed air or vacuum
connections (only SDE3-...D and
SDE3-...M)
8Compressed air or vacuum
connection (only SDE3-...S)
9Compressed air or vacuum
connections (only SDE3-...Z)
aJ Label holder
aA B pushbutton
aB A pushbutton
aC Edit button
aD Display
Fig. 1
Key feature Order
code
Type
Function SDE3 Pressure sensor
Pressure measuring range -V1 0 … –1
-B2 –1 … +1
-D2 0 … 2
-D6 0 … 6
-D10 0 … 10
-D12 1) 0 … 12
Supply port S1x relative pressure
D2x relative pressure
Z1x differential pressure
M2x relative pressure, 1x differential pressure analysis
Feature Order
code
Type
Display -B Values in bar
-P Values in psi
-K 2) Values in kPa
-H Values in inches of mercury
-W 3) Values in inches of water
Mounting/pneumatic
connection
-HQ4 H-rail mounting, push-in connector 4 mm
-WQ4 Wall mounting, push-in connector 4 mm
-FQ4 Front panel mounting, push-in connector 4 mm
-HT532 H-rail mounting, push-in connector 5/32”
-WT532 Wall mounting, push-in connector 5/32”
-FT532 Front panel mounting, push-in connector 5/32”
Electrical output -2P 2 switching outputs PNP
-2N 2 switching outputs NPN
Electrical connection -M8 Plug connector M8x1
-M12 Plug connector M12, A-coded
-K Cable 2.5 m
Electrical accessories 4) -G Connecting cable, straight socket, cable length 2.5 m
-W Connecting cable, angled plug socket, cable length
2.5 m
-G5 Connecting cable, straight socket, cable length 5 m
-W5 Connecting cable, angled plug socket, cable length 5 m
1) Key feature only on request
2) Not for SDE3-D12M
3) Not for SDE3-D6M, SDE3-D10M, SDE3-D12M
4) Only in combination with key feature -M8 or -M12
Fig. 2
2 Function and application
The SDE3 has been designed for monitoring changes in pressure in the
compressed air system or terminals. Variants for relative pressure measurement
and differential pressure measurement are available:
Type Description Input
values1)
Switching
outputs
SDE3-...Z 1x differential pressure
p1 – p2 2)
In A Out A, Out B
SDE3-...S 1x relative pressure In A Out A, Out B
SDE3-...D 1x relative pressure pA In A Out A
1x relative pressure pB In B Out B
SDE3-...M 1x relative pressure pA In A Out A
1x relative pressure pB In B –
1x differential pressure
analysis pB –pA
In C Out B
SDE3-…V1M 1x differential pressure
analysis pA – pB
In C Out B
1) In A/B: input value for sensor element A/B. In C: calculated
2) Measuring pressure p1 – reference pressure p2
Fig. 3
3 Requirements for product use
Warning
Depending on the functions of the machine/system, the manipulation of signal
statuses can cause serious injury to people or material damage.
 Note that if the switching characteristics of the switching outputs is modified
in EDIT mode, the new status becomes effective immediately.
Enable the password protection option (security code) to prevent accidental
alteration by an unauthorised third party (èChapter 5.3 section Set security
code).
Warning
The usage of the SDE3 in combination with impermissible media can lead to
personal injury or material damage.
 Use the SDE3 only with compressed air
 Observe the specified air quality class (èChapter 11 Technical data).

Note
Improper handling can result in malfunctions.
 Make sure that the following specifications are always observed.
 Compare the limit values contained in these operating instructions with those of
your application (e.g. operating media, pressures, forces, torques,
temperatures, masses, speeds, voltages).
 Take the ambient conditions at the location of use into consideration.
 Comply with the regulations of the workers’ compensation trade association,
the German Technical Control Board (TÜV), of the VDE or relevant national
regulations.
 Remove all transport packing, such as protective wax, foils (polyamide),
caps(polyethylene), cardboard boxes (except for the sealing elements of the
pneumatic connections).
 The material used in the packaging has been specifically chosen for its
recyclability (exception: oiled paper = residual waste).
 Use the product in its original status. Unauthorised modification is not
permitted.
 The device is intended for use in an industrial environment. Measures may need
to be implemented in residential areas for interference suppression.
Range of applications and certifications
The information in this section, in combination with the UL marking on the product,
must be observed in order for there to be compliance with the certification
conditions of Underwriters Laboratories Inc. (UL) for USA and Canada. Observe the
following English-language remarks from UL:
This device is intended to be used with a Class 2 power source or Class 2
transformer in accordance with UL1310 or UL1585.
As an alternative a LV/C (Limited Voltage/Current) power source with one of the
following properties can be used:
– This device shall be used with a suitable isolating source such that the
maximum open circuit voltage potential available to the product is not more
than 30 V DC and the current is limited to a value not exceeding 8 amperes
measured after 1 minute of operation.
– This device shall be used with a suitable isolating source in conjunction with
afuse in accordance with UL248. The fuse shall be rated max. 3.3 A and be
installed in the 30 V DC power supply to the device in order to limit the available
current.
Note that, when more than one power supply or isolating device is used,
connection in parallel is not permitted.
In determining the acceptability of the combination, the following details are to be
examined:
– The suitability of the final mounting is to be determined.
– The devices are to be mounted in an enclosure with adequate strength and
thickness.
– The devices have not been investigated for field wiring. The suitability of the
final application is to be determined.
UL approval information
Product category code NRNT2 (USA) or
NRNT8 (Canada)
File number E253738
Considered standards UL 508, 17th edition,
C22.2 No. 14-95
UL mark
Fig. 4
4 Installation
4.1 Mechanical system
Note
 Mount the SDE3 and connect the tubing so that no condensation from the
compressed air lines can gather in the device.
It can be mounted in any position. Mount the SDE3 as follows:
H-rail (manifold assembly)
1. Hang the SDE3 into the H-rail.
2. Press the SDE3 in the direction of the
arrow until the mounting slide catches
èFig. 5.
Fig. 5
Wall mounting
Observe the hole pattern (èFig. 24)
1. Attach the adapter plate, for example,
with two screws M3.
2. Hang the SDE3 into the adapter plate.
3. Press the SDE3 in the direction of the
arrow until the mounting slide catches
èFig. 6. Fig. 6
Plate mounting (threaded mounting)
Observe the hole pattern (èFig. 24)
 Mount the SDE3 with washers and
screws M3 (èFig. 7).
Max. tightening torque 0.5 Nm
Fig. 7
Front panel mounting
1. Push the SDE3 into the recess
(70x22 mm) in the front panel.
2. Hang the clamping plate and press it
until the mounting slide locks into place.
3. Screw in the screws M3 with washers
(èFig. 8).
Max. tightening torque 0.3 Nm
In case of thin front panels (s < 2 mm),
washers might not be necessary.
Fig. 8
4.2 Pneumatic system
Connect the tubing of SDE3 as follows:
 Insert the tube into the push-in fittings. Make sure the system is connected
correctly (èFig. 3).
4.3 Electrical system
Warning
 Use only power sources which guarantee reliable electrical isolation of
theoperating voltage as per IEC/EN 60204-1. Observe also the general
requirements for PELV power circuits as per IEC/EN 60204-1.
Note
Long signal lines pick up more interference.
 Make sure that the signal lines are always shorter than 30 m.
 Wire the SDE3 as follows:
Pin Allocation Core colours1) Plug connectors2)
1Supply voltage
+24 V DC
Brown (BN) 4-pin M8 5-pin M12x1
5
2
3
4
1
2Switching output B
(Out B)
White (WH)
30 V Blue (BU)
4Switching output A
(Out A)
Black (BK)
5 n.c. –
1) In case of SDE3-…-K and/or the usage of the plug socket with the cable (èwww.festo.com/catalogue)
2) Tightening torque for the union nut on plug connector M8: max. 0.3 Nm; on plug connector M12:
max. 0.5 Nm.
Fig. 9

Circuit diagrams
SDE3-…-2P-M8-…/SDE3-…-2P-M12-… 1)
Switching output plug connection
SDE3-…-2N-M8-…/SDE3-…-2N-M12-…1)
Switching output plug connection
SDE3-…-2P-K-…
Switching output cable connection
SDE3-…-2N-K-…
Switching output cable connection
1) Plug connector M12: pin 5 not connected
Fig. 10
5 Commissioning
 Define the desired switching characteristics of the switching outputs.
Switching point (SP) and hysteresis (Hy)
Threshold value comparator Window comparator
Switching element function NO (normally open contact)
P
1
0
HY
OUT
SP
HY Hy
P
1
0
OUT
SP min SP max
Switching element function NC (normally closed contact)
P
1
0
SP
HY
OUT
P
1
0
OUT
SP min SP max
Hy HY
Fig. 11
Symbols on the display
Symbols Description
– RUN mode: switching output set/not set
– SHOW and EDIT mode: switching output selected/not selected
Threshold value comparator
Window comparator
[SP] Switching point
[SP min] Lower switching point (switching point – minimum)
[SP max] Upper switching point (switching point – maximum)
[HY] Hysteresis
[NO] Switching characteristic of normally open contact
[NC] Switching characteristic of normally closed contact
[min] / [max] Extreme values: minimum/maximum input measured value (In A/B/C)
[TeachIn] TeachIn mode active
[Option] Option (On/Off) – measured value smoothing on/off
[LOCK] Security code active (block to prevent unauthorised parameterisation)
Special menu (SPEC) is active 1)
– RUN mode: Graphic display of the current measured value related to
the maximum measured value of the measuring range. The left-hand
segment row shows the measured value of In A, the right-hand
segment row shows the measured value of In B.
– Significance in other modes: èFig. 13
1) The segment bars also show special symbols èFig. 13
Fig. 12
Special symbols of the segment bars
Symbols Description
Marked segments illuminate:
– SHOW mode active
– Diagnostics: 7-segment display shows error number (e.g. Er01)
Marked segments illuminate and [Option] flashes:
– EDIT mode active
– Special menu (SPEC) is open; 7-segments display shows the set filter
option
Marked segments illuminate and [Lock] flashes:
– EDIT mode active
– Special menu (SPEC) is open; 7-segments display shows the
securitycode
Fig. 13
Preparing commissioning
In the basic status, the product is in RUN mode. The current measured values are
displayed permanently. The basic status can be reached from other modes by:
– Pressing the Edit button for 3 seconds or
– Expiration of a monitoring time, timeout
1. Switch on the operating voltage.
The SDE3 is in RUN mode.
2. Check the SDE3 settings (èChapter 5.2 SHOW mode).
If the SDE3 has several input values (èFig. 3), you can switch between the input
values at the press of a button as follows:
Pushbutton Input value
A pushbutton In A
B pushbutton In B
C pushbutton
(press the A and B pushbuttons at the same time)
In C
Fig. 14
Factory setting
The SDE3 is available with the following factory setting;
 Switching characteristics: Threshold value comparator
 Switching point: 20 % FS
 Switching characteristic: NO (normally open contact)
 Hysteresis: 0.5 % FS
 Options: OFF
 Security code: OFF
Symbols for representing the menu structure
Symbol Significance
Automatic return to the basic status (RUN mode) when the monitoring
time has expired (here 80 seconds)
In order to return manually to the basic status (RUN mode), press the
EDITbutton for 3 seconds
Create pressure (for teaching the measured value – TP1 here)
Symbol on the display flashes (here Out A)
Security code active (lock – blocked against unauthorised programming)
Security code inactive (Lock)
Press pushbutton (A pushbutton here)
Press A pushbutton or B pushbutton and thus set the desired value
Press pushbutton (here B pushbutton) and the Edit button
simultaneously
C pushbutton: Press A pushbutton and B pushbutton simultaneously
Press the Edit button
Display of current errors
Delete minimum/maximum value
Branching in the menu system
Fig. 15

5.1 RUN mode
In RUN mode, the following are displayed:
– The measured values (relative pressure, differential pressure) and
– The signal statuses of the switching outputs Out A, Out B (set, not set).
Note
A flashing value means:
– Measurement outside permitted measuring range.
5.2 SHOW mode
In SHOW mode, the current settings for the switching outputs Out A and Out B are
displayed.
If the SDE3 has several input values (èFig. 3), the corresponding input values will
be displayed at the press of a button first (èFig. 14).
The SDE3 must be in RUN mode.
 Pressing the A pushbutton (switching output Out A) or the B pushbutton
(switching output Out B) starts SHOW mode for the respective switching output.
 Only for SDE3-...M: pressing the C pushbutton (press the A and B pushbuttons
at the same time) displays the extreme values of In C.
Note
If there are errors, pressing the A/B/C pushbutton first displays corresponding
error numbers.
 Repeated pressing of the A/B/C pushbutton one after another displays the
settings of the respective switching output and, after that, the extreme values
ofthe input values.
 When all settings have been displayed, the SDE3 goes back into RUN mode
when the A/B/C pushbuttons are pressed again and displays the current
measurement value for the corresponding output.
1
2
1Switch over displayed
input value
For SDE3-...D: In A/B
For SDE3-...M: In A/B/C
(not shown in graphic)
2For SDE3-...D: display/delete
minimum/maximum value of ln B
For SDE3-...M: display/delete
minimum/maximum value of ln C
(not shown in graphic)
Fig. 16
The following settings and values are indicated in the SHOW mode:
Settings for Out A/Out B:
– Switching function (threshold value or window comparator)
– Switching point [SP] or switching points [SP min] and [SP max]
– Hysteresis [HY]
– Switching element function [NO]/[NC] (N/O contact/N/C contact)
Extreme values of input values (èFig. 3)
– Minimum pressure value [min]
In order to delete the minimum value, press the EDIT button briefly.
– Maximum pressure value [max]
In order to delete the maximum value, press the EDIT button briefly.
The extreme values are lost when the supply voltage is switched off.
– The SDE3-...D and SDE3-...M save an extreme value for each sensor element
(Aand B).
– The SDE3-...M also saves an extreme value for the differential pressure signal
pB-pA.

5.3 Edit mode
Fig. 17
The EDIT mode enables the following settings:
– Switching function (threshold value or window comparator)
– Switching point [SP] or switching points [SP min] and [SP max]
– Hysteresis [HY]
– Switching element function [NO]/[NC] (N/O contact/N/C contact)
– Filter option [ON/OFF] (smoothing of measured values)
– Security code [Lock]
Start EDIT mode
Warning
Manipulation of signal statuses may cause serious personal injury, depending on
the functioning of the machine/system.
 Note that if the switching status of the outputs is modified in EDIT mode,
thenew status will be effective immediately.
Various settings can be selected with the operating keys (A/B pushbuttons).
– Switching output for which the characteristics is to be set
– Special menu
1. Press the Edit button.
The EDIT mode is active and [Out A] flashes or, if there is an active security
lock, [Lock] flashes.
2. Press the A/B pushbuttons until the chosen security code is set.
3. Press the Edit button.
The EDIT mode is active and [Out A] flashes.
Setting the switching characteristics of the switching outputs
Note
The process for setting the switch outputs for Out A (A pushbutton) and Out B
(Bpushbutton) is fundamentally the same. In the following, the process is
described using the switching output Out A.
The SDE3 is in EDIT mode and [Out A] flashes èChapter Start EDIT mode.
 To set Out A, proceed as follows:
1. Press the Edit button to confirm the selection.
The currently set switching function flashes.
2. Select the desired switching function with the A/B pushbuttons.
3. Press the Edit button to confirm the selection.
[SP] and/or [SP] [min] flashes.
4. Select the desired switching point using the A/B pushbuttons.
5. Press the Edit button to confirm the selection.
Only with window comparator switching function:
[SP max] flashes.
 Set the desired value for (SPmax) with the A/B pushbuttons.
 Press the EDIT button to confirm the set value.
[Hy] flashes.
6. Set the desired value for the hysteresis (Hy) using the A/B pushbuttons.
7. Press the Edit button to confirm the set value.
[NO] or [NC] flashes.
8. Select the switching element function (NO/NC) with the A/B pushbuttons.
9. Press the EDIT button to confirm the set value.
The SDE3 is in RUN mode.
Carry out a test run with various pressures to ascertain whether the SDE3 switches
as desired (switching function, switching points and hysteresis).
Set special menu [SPEC]
The following settings can be undertaken in the special menu:
– Filter option [ON/OFF] (smoothing of the measured value)
– Removal of the security blocking [Lock] with security code
This is how you reach the special menu:
The SDE3 is in EDIT mode and [Out A] flashes; èChapter Start EDIT mode.
1. Press the A or B pushbutton until the menu (SPEC) is selected.
[SPEC] flashes.
2. Press the Edit button to confirm the selection.
[Option] flashes and the filter option (ON/OFF) can be set.
a) Set filter option
3. Set the desired value for the filter option (ON/OFF) using the A/B
pushbuttons.
ON: Smoothing of the measured values (In A/B) is active, time constant
approx. 500 ms
OFF: Smoothing of the measured values (ln A/B) is inactive
4. Press the Edit button to confirm the selection.
[Lock] flashes. The security code can be set.
b) Setting the security code
The settings can be protected from unauthorised access by setting a numerical
code which is up to 4 digits in length. The security code must be entered each time
the settings are changed (EDIT mode and TEACH mode).
Note
Keep the security code where it can be found. If the security code has been
forgotten èChapter 6.1 Resetting SDE3 to factory setting.
5. Set the desired security code with the A/B pushbuttons.
6. Press the Edit button to confirm the selection.
The SDE3 is in RUN mode.

5.4 TEACH mode
The switching points can be learned in TEACH mode.
Note
The process is the same for teaching the switching outputs Out A (A button) and
Out B (B button). In the following, the process is described using the switching
output Out A.
Fig. 18
1. Before teaching in EDIT mode, select the desired switching function
(threshold value or window comparator) èChapter 5.3 EDIT mode.
Threshold value comparator Window comparator
The (taught) switching point is derived
from the average value of both measured
values
SP = 1/2 (TP1 + TP2)
Special case: SP = TP1 = TP2
The taught switching window is derived from the
measured values:
SPmin = smaller teach point (TP1 or TP2)
SPmax = larger teach point (TP1 or TP2)
Position of the teach points (example): Position of the teach points (example):
Fig. 19
For teaching the switching variables:
2. Apply the first measuring pressure (relative/differential pressure p1-p2and/
or pB-pA)
3. First press the A pushbutton and then also the Edit button.
Switching output symbol [A] and [TeachIn] flash. The measured value is
assumed as the first teach point (TP1).
In case of active security blocking, [Lock] flashes.
Only in case the security lock is active [Lock]:
 Press the A/B pushbuttons until the chosen security code is set.
 Press the Edit button.
Switching output symbol [A] and [TeachIn] flash. The measured value is assumed
as the first teach point (TP1).
4. Apply the first second pressure (relative/differential pressure p1-p2 and/or
pB-pA).
5. First press the A pushbutton and then also the Edit button.
The second teach point is taken over and the new switching point (SP) or the
switching points (SPmin and SPmax) become valid.
The SDE3 is in RUN mode.
Conduct a test run with variable pressures to see whether the SDE3 switches as
desired.
6 Operation
Attention!
Excessive internal heat will damage the SDE3.
 Avoid high cycle rates with large pressure amplitudes.
6.1 Resetting SDE3 to factory setting
(even if the security code cannot be found)
Note
By resetting to factory settings, the current settings are lost.
 If required, make a note of these settings before resetting.
To reset the SDE3 to the factory setting, proceed as follows:
1. Switch off the operating voltage.
2. Press all three setting elements (A pushbutton, B pushbutton, Edit button)
simultaneously and keep them depressed.
3. Switch the operating voltage off and then on again.
The SDE3 is in RUN mode.
7 Maintenance and care
 Switch off the following energy sources before cleaning the exterior of the
device:
– Operating voltage
– Compressed air/vacuum
 If necessary, clean the SDE3 from the outside.
Soap suds (max. +60 °C), petroleum ether and all non-abrasive cleaning agents
may be used.
8 Disassembly
1. Switch off the following energy sources before disassembly:
– Operating voltage
– Compressed air/vacuum
2. Disconnect the respective connections from the SDE3.
3. Disassemble the SDE3 as follows:
Disassembly for ...
H-rail or wall mounting Plate mounting Front panel mounting
1
2
1. Lift the SDE3.
2. Tip the SDE3 forward.
 Loosen both screws. 1. Loosen both screws.
2. Press down the mounting
slide with a screwdriver.
3. Lift off the clamping plate.
Fig. 20

9 Fault clearance
Malfunction Possible cause Remedy
No indication on
display
No supply voltage Switch on
supply voltage
Faulty electrical connection Correctly wire the SDE3
(èChapter 4.3 Electrical
system)
SDE3 defective Send SDE3 to Festo
Incomplete display Display defective Send SDE3 to Festo
Incorrect measured
value
Only for SDE3-...D, SDE3-...M,
SDE3-...Z:
Pneumatic connections swapped
Connect tubing of SDE3 correctly
(èChapter 4.2 Pneumatic
system)
SDE3 operated with non-permitted
medium
Replace the SDE3 and operate
only with compressed air
Settings cannot be
edited (Lock)
Access protection active Enter security code
(èChapter 5.3 section
Setting the security code).
Outputs do not
switch correspon
ding to the setting
Short circuit or overload at
corresponding output
Eliminate short circuit/overload
SDE3 defective Send SDE3 to Festo
Pressure indicator
flashes
Pressure outside measuring range Comply with permissible
measuring range
Pressure above permissible maximum
value (SDE3 damaged)
Replace SDE3
Er012) SDE3 defective Send SDE3 to Festo
Er091) Measuring range undershot with In A Comply with permissible
measuring range. After the
permissible maximum values are
exceeded, exchange SDE3.
Er101) Measuring range exceeded with In A
Er111) Measuring range undershot with In B
Er121) Measuring range exceeded with In B
Er172)3) Undervoltage Maintain operating voltage
1) 7-segments display flashes. Error display in SHOW mode (èChapter 5.2 SHOW mode)
2) 7-segments display flashes. The currently smallest error number is shown
3) Outputs are reset automatically (0 signal)
Fig. 21
10 Accessories
Please select the corresponding accessories from our catalogue.
èwww.festo.com/catalogue/SDE3
11 Technical data
Type SDE3 -V1 -B2 -D2 -D6 -D10 -D12
General information
Certification RCM, c UL us – Recognized (OL) 1)
CE marking (èDeclaration
of conformity)
In accordance with EU EMC Directive
Information on materials Copper- and PTFE-free, RoHS-compliant
Input signal/measuring element
Measured variable Differential pressure, relative pressure (according to type èFig. 3)
Pressure
measuring range
[bar]
Start value … end
value
0 … –1 –1 … +1 0 … 2 0 … 6 0 … 10 0 … 12
Pressure
measuring range
Start value … end
value
[MPa]
0 … –0.1 –0.1 … 0.1 0 … 0.2 0 … 0.6 0 … 1 0…1.2
Overload range
Start value … end
value
Start value … end
value
(for SDE3-...Z)
[bar]
0 … 5
0 … 5
1 … 5
1 … 5
2 … 6
2 … 6
6 … 15
6… 16
10 … 15
10 … 20
12 … 15
12 … 20
Overload range
Start value …
end value
Start value …
end value (for
SDE3-…Z)
[MPa]
0…0.5
0…0.5
0.1…0.5
0.1…0.5
0.2…0.6
0.2…0.6
0.6…1.5
0.6…1.6
1…1.5
1…2
1.2…1.5
1.2…2
Operating medium Compressed air according to ISO8573-1:2010 [7:4:4]
Temperature of me
dium
[°C] 0 … 50
Ambient
temperature
[°C] 0 … 50
Output, general 2)
Accuracy ±FS
(èFig. 23 with ex
amples)
[%] Max. 2 (at T= 20 … 25 °C)
Max. 3 (at T= 0 … 50 °C)
Repetition
accuracy ±FS
[%] Max. 0.3
Switching output
Switch-on time3) [ms] 3 (typical)/6 (max.)
Switch-off time3) [ms] 3 (typical)/6 (max.)
Max. Output
current
[mA] 100
Capacitive load
maximum DC
[nF] Max. 100
Voltage drop [V] Max. 1.5
Inductive protective circuit Adapted to MZ, MY, ME coils
Type SDE3 -V1 -B2 -D2 -D6 -D10 -D12
Measured value indicator
Display range
Start value …
end value
[bar]
–.000…
–.999
–.999…
1.000
0.000…
2.000
0.00 …
6.00
0.00 …
10.00
0.00 …
12.00
Start value…
end value
(Differential pressure
SDE3-...M)
–.999…
1.000
–2.00…
2.00
–2.00 …
2.00
–6.00…
6.00
–9.99 …
10.00
–12.0 …
12.0
Display range
Start value…
end value
[MPa]
–.000…
–.0999
–.099…
0.100
0.000…
0.200
0.00…
0.60
0.00…
1.00
0.00…
1.20
Start value
end value
(Differential pressure
SDE3-…M)
–.099…
0.100
–0.20…
0.20
–0.20…
0.20
–0.60…
0.60
–0.99…
1.00
–1.20…
1.20
Output, additional data
Short circuit protection Yes, pulsed
Overload protection Yes, pulsed
Electronics
Operating voltage
range DC
[V] 15 … 30
No-load supply
current
[mA] Max. 45
Ready-state delay [ms] Max. 500
Reverse polarity protection For all electrical connections
Electromechanics
Max. cable length [m] 30
Information on cable
sheath materials
PU
Information on plug con
nector housing materials
Brass (nickel-plated)
Mechanical system
Mounting position Any, avoid condensation gathering in the pressure sensor
Product weight [g] 37 (without adapter plate)
61 (key feature -FQ4 with clamping plate)
Note on materials
– Housing PA reinforced
– Pushbuttons TPE-U
– Display PC
– Supply ports POM, brass (nickel-plated)
Display/operation
Displayable units bar, psi, kPa, inch of mercury, inch of water
(depending on type èFig. 2)
Threshold value setting
range
0 % FS … 100 % FS
Hysteresis setting range 0 % FS … 90 % FS
Immissions/emissions
Operating
temperature range
[°C] 0 … +50
Storage
temperature
[°C] –20 … +80
Degree of protection IP65
Protection class III
Shock resistance Severity level 2 (as per EN 60068-2-27)
Vibration resistance Severity level 2 (as per EN 60068-2-6)
1) Does not apply to key feature -FQ4
2) % FS = % of the end value in the measuring range (full-scale)
3) If the filter function is not activated
Fig. 22
Example of accuracy
A: Start value
E: End value
Out: Display value
Fig. 23
Example for SDE3-D10 at p1= 5 bar (0.5 MPa):
Display value in case of accuracy ±2 % FS: 5 ± 0.2 bar (0.5 ± 0.02 MPa)
Example for SDE3-B2 at p1 = 0 bar (0 MPa):
Display value in case of accuracy ±3 % FS: 0 ± 0.06 bar (0 ± 0.006 MPa)

12 Appendix
Adapter plate hole patterns
Fig. 24