Festo SDE1 Series User manual

Pressure sensor SDE1-…
Festo AG & Co. KG
Postfach
73726 Esslingen
Germany
[phone]
www.festo.com
Operating instructions 8048045
1511h
[8048047]
Original: de
Pressure sensor SDE1 English..........................................
1 Product description
The operating instructions describe the entire function range. The function range is
limited, depending on the product variant.
1.1 Structure
1
2
3
4
5
6
1Pneumatic connection
(design type-dependent)
2Electrical connection
(design type-dependent)
3B key
4Edit button
5A key
6Display
Fig. 1
1.2 Characteristics
Characteristic Value Description
Type SDE1 Pressure sensor
Pressure measuring
range
-V1, -B2, -D2,
-D6, -D10
è11 Technical data
Accuracy -G2 Accuracy 2 %
Pneumatic connection
and mounting
-R18 1) Male thread Rx
-R14 1) Male thread R¼
-MS4 For adapting to MS4-series service units
-MS6 For adapting to MS6-series service units
-H18 Relative pressure, female thread Gx, H-rail mounting
-W18 Relative pressure, female thread Gx, wall or surface
mounting
-FQ4 Push-in connector QS-4, front panel mounting
-HQ4 Push-in connector QS-4, H-rail mounting
-WQ4 Push-in connector QS-4, wall or surface mounting
Display -C LCD display with backlighting
-L Illuminated LCD display
Characteristic Code Type designation
Electrical output -P1 1 switching output PNP
-P2 2 switching outputs PNP
-PU 1 switching output PNP and 0…10 V analogue
-PI 1 switching output PNP and 4…20 mA analogue
-2I 2 switching outputs PNP and 4…20 mA analogue
-N1 1 switching output NPN
-N2 2 switching outputs NPN
-NU 1 switching output NPN and 0…10 V analogue
-NI 1 switching output NPN and 4…20 mA analogue
Electrical connection -M8 M8 plug connector
-M12 M12 plug connector
Electrical accessories -G Straight socket, cable 2.5 m
-G5 Straight socket, 5 m cable
-w Angled plug socket, 2.5 m
-W5 Angled plug socket, 5 m cable
1) For example, for mounting on an MS- or D-series service unit
Fig. 2
2 Security
Intended use
The pressure sensor SDE1 is intended for monitoring pressure in piping or terminals.
General safety information
– The product may only be used in its original status without unauthorised modi
fications.
– Only use the product if it is in an excellent technical status.
– The product is intended for use in industrial environments. Measures may need
to be implemented in residential areas for radio interference suppression.
– Take into consideration the operating conditions at the location of use.
– Observe the specifications on the rating plate.
– Comply with all applicable national and international regulations.
Disposal
– Observe the local specifications for environmentally friendly disposal.
Range of applications and certifications
In combination with the UL mark on the product, the information included in this
section is also applicable for compliance with the certification requirements of
Underwriters Laboratories Inc. (UL) for USA and Canada. Observe the following
English-language remarks from UL:
UL approval information
Product category code NRNT2 (USA)
NRNT8 (Canada)
File number E253738
Considered standards UL 508, 17th edition, C22.2 No. 14-95
UL mark
Fig. 3
Only for connection to an NEC/CEC Class 2 supply.
Raccorder uniquement a un circuit NEC/CEC Classe 2.
Technical data
Max. surrounding air temperature 50 °C / 122 °F
Fig. 4
This device is intended to be used with a Class 2 power source or Class 2 trans
former in accordance with UL1310 or UL1585.
As an alternative, an 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 maxim
um 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 in
stalled 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, connec
tion in parallel is not permitted.

3 Function and application
The pressure sensor SDE1 converts pneumatic pressure values into electrical sig
nals. Measurements are carried out using a piezoresistive sensor element with a
following electronic evaluation unit. Depending on the type, interfacing to the high
er-level systems is provided by 1 or 2 switching outputs and an analogue output.
Depending on the type and application, the differential pressure or relative pres
sure is measured.
The switching outputs can be configured as normally closed or normally open con
tacts. The switching points can be determined as threshold value or window com
parator.
3.1 Operating statuses
Operating status Function
RUN mode – Basic status after the operating voltage is switched on
– Display of the current measured value
SHOW mode – Display of the current settings
EDIT mode – Setting or modification of parameters
TEACH mode – Acceptance of the current measured value to determine switching points
Fig. 5
3.2 Switching functions
Threshold value comparator for monitoring of a pressure threshold
Function NO (normally open) NC (normally closed)
Switching function:
– 1 switching point (SP)
TEACH mode:
– 2 teach-in points (TP1, TP2)
– SP = ½ (TP1+TP2) TP1 TP2
HY
1
0
Out
p
SP TP1 TP2
SP
HY
1
0
Out
p
Fig. 6
Window comparator for monitoring of a pressure range
Function NO (normally open) NC (normally closed)
Switching function:
– 2 switching points
(SPmin, SPmax)
TEACH mode1):
– 2 teach-in points (TP1, TP2)
– TP1 = SPmin, TP2 = SPmax
HY HY
TP1=SPmin TP2=SPmax
1
0
Out
p
HY HY
TP1=SPmin TP2=SPmax
1
0
Out
p
1) SPmin = smaller pressure/vacuum value, SPmax = larger pressure/vacuum value, dependent on the
Teach sequence
Fig. 7
4 Installation
Installation to be carried out only by qualified personnel in accordance
with the operating instructions.
 Remove all transport packaging. The material used in the packaging has been
specifically chosen for its recyclability.
 Install the sensor so that condensation from the compressed air lines cannot
collect in it.
4.1 Mechanical
SDE1-…-R14/-R18
- R14: max. 12 Nm
- R18: max. 7 Nm
5 mm
1. 2.
3.
Fig. 8
SDE1-…-H
Fig. 9
SDE1-…-W
– Wall mounting hole pattern èFig. 32
1.
M3
2.
Fig. 10
SDE1-…-FQ4
– Size of the front panel cut-out in mm èFig. 11
1. Guide sensor from the front into the cut-out on the front panel.
2. Attach the clamping plate and press until the fastening slide clips in.
36.5 ±0.5
86 ±0.5
ss=2 ±1 mm
s < 2 mm: remove washers
Max. 0.5 Nm
Fig. 11 Fig. 12
4.2 Pneumatic
SDE1-…-H18/-W18 SDE1-…-HQ4/-WQ4/-FQ4
Max. 7 Nm
 Insert tube (outside diameter 4 mm)
into the push-in fitting.
 Observe connection of p1 and p2
(relative pressure p1 / differential
pressure p1 - p2).
Fig. 13 Fig. 14
4.3 Mechanical and pneumatic (SDE1-…-MS4/-MS6)
The sensor can be mounted to the following MS-series devices:
– DE, DL, EE, EM1, FRM, LFR, LR, LRB
Mounting adapter
1. Seal either the trunnion (a) or drill hole (b) with O-ring.
2. Push the mounting screws at the mounting brackets outwards and tighten.
1.
a
b
2.
T10
max. 0.5 Nm
Fig. 15

Mounting sensor
The sensor can be rotated 180°.
 Check moulded seal (c) for proper seating.
 Make sure the sealing surfaces between the sensor and adapter are clean.
1.
c
2.
T10
max. 1.0 Nm
Fig. 16
4.4 Electrical
Warning
Use only power sources which guarantee reliable electrical isolation of the oper
ating voltage in accordance with IEC/EN 60204-1. Consider also the general
requirements for PELV circuits in accordance with IEC/EN 60204-1.
 Connect sensor.
– Maximum permissible cable length: 30 m
– Maximum tightening torque of plug connector: M8 = 0.3 Nm, M12 = 0.5 Nm
SDE1-… (1 output)
Pin / wire colour Allocation
3-pin M8 4-pin M12
1 / brown (BN) Operating voltage +24 V
2 / - -not connected
3 / blue (BU) 0 V
4 / black (BK) Switching output OutA
Fig. 17
Circuit diagrams
SDE1-...-P1 SDE1-...-N1
Fig. 18
SDE1-… (2 or 3 outputs)
Pin / wire colour Allocation
4-pin M8 4-pin M12 5-pin M12
1 / brown (BN) Operating voltage +24 V
2 / white (WH) Switching output
OutB or analogue
output OutB
Switching output
OutA
Switching output
OutB
3 / blue (BU) 0 V
4 / black (BK) Switching output
OutA
Switching output
OutB or analogue out
put OutB
Switching output
OutA
5 / grey (GY) - - Analogue output OutC
Fig. 19
Circuit diagrams
SDE1-...-P2 SDE1-...-N2
SDE1-...-PU-M8 SDE1-...-NU-M8
SDE1-...-PU-M12 SDE1-...-NU-M12
SDE1-...-PI-M8 SDE1-...-NI-M8
SDE1-...-PI-M12 SDE1-...-NI-M12
SDE1-...-2I-M12
Fig. 20
5 Commissioning
Commissioning is to be carried out only by qualified personnel in accord
ance with the operating instructions.
5.1 Symbols on the display
The design of the display is type-dependent.
Type SDE1-…-C SDE1-…-L
Description LCD display with backlighting Illuminated LCD display
Display
Fig. 21
Symbols on the display Description
SDE1-…-C SDE1-…-L
Out A Out B Out A Out B Switching output OutA / switching output OutB
/ / Switching output set / not set
Threshold value comparator
Window comparator
[SP] Switching point
[SP] [min] Lower switching point
[SP] [max] Upper switching point
[HY] Hysteresis
[NO] Contact (normally open)
[NC] Contact (normally closed)
[min] Minimum measured pressure since switch-on or the
last reset
[max] Maximum measured pressure since switch-on or the
last reset

Symbols on the display Description
SDE1-…-C SDE1-…-L
[lock] [lock] Security code active (blocked against unauthorized
parameterisation)
Segments illuminated: Graphic display of the cur
rent measured value related to the maximum meas
ured value of the measuring range
[min] [max] Display flashes: Minimum/maximum value is reset.
-Segments flash: Hysteresis value is displayed.
-Segment 5 flashes: Value of switching point SP or
SP.L is displayed.
-Segment 8 flashes: Value of switching point SP.H is
displayed.
-Segment 1 flashes: Minimum value min or P.Lo is
displayed.
-Segment 10 flashes: Maximum value max or P.Hi is
displayed.
Fig. 22
5.2 Switch on sensor (RUN mode)
 Switch on the operating voltage.
èThe current measured value is displayed. The sensor is in the basic status
(RUN mode).
The basic status can be reached from other modes through:
– pressing Edit button for 3 seconds
– expiration of a monitoring time (Timeout)
5.3 Displaying parameters (SHOW mode)
Requirement: The sensor is ready for operation (RUN mode).
 Press the A-key for switching output OutA or the B-key for switching output OutB.
èThe first parameter is displayed.
The respective subsequent parameter can be displayed by pressing the A key or B
key (menu structure èFig. 23).
Menu structure for SHOW mode
Measured value indicator (RUN mode)
OutA or OutB
(Switching output)
_|¯|_ _|¯
SP min SP
SP max
HY HY
NO/NC NO/NC
Measured value indicator (RUN mode)
A or B key
Fig. 23
5.4 Displaying minimum/maximum value
Requirement: The sensor is ready for operation (RUN mode).
1. Press the A key and B key simultaneously.
èThe lowest pressure value since the last switch-on or reset is displayed.
2. Press the A key and B key simultaneously.
èThe highest pressure value since the last switch-on or reset is displayed.
3. Press the A key and B key simultaneously.
èSwitch to the RUN mode.
The following options exist for resetting from the minimum and maximum values:
– Press the A key and B key simultaneously for longer than 2 seconds.
– Switch off the operating voltage.
5.5 Configuring switching output (EDIT mode)
Note
Changing the switching behaviour of the switching outputs in the EDIT mode is
effective immediately.
The process is the same for configuring the switching outputs for OutA and
OutB. In the following, the process is described using the switching output
OutA (menu structure èFig. 24).
Requirement: The sensor is ready for operation (RUN mode).
1. Press the Edit button.
èIf the security code is activated: [Lock] flashes.
2. Enter security code set with A key or B key.
3. Press the Edit button.
èThe parameter entry option is unblocked. [OutA] flashes.
4. Press the Edit button.
è[_I¯I_] or [_I¯] flashes.
5. Select the switching function with the A key or B key.
6. Press the Edit button.
èThe next adjustable parameter flashes.
7. With A key or B key, select the parameter or value.
8. Repeat points 6 and 7 until all parameters are set.
9. Press the Edit button.
èSwitch to the RUN mode.
5.6 Set the display unit and security code (EDIT mode)
Requirement: The sensor is ready for operation (RUN mode).
1. Press the Edit button.
èIf the security code is activated: [Lock] flashes.
2. Enter security code set with A key or B key.
3. Press the Edit button.
èThe parameter entry option is unblocked. [OutA] flashes.
4. With the A key, select the unit bar.
è[lock], [kPA], [psi] and [bar] flash.
5. Press the Edit button.
èThe currently set unit flashes.
6. Select the unit with the A key or B key.
7. Press the Edit button.
è[lock] flashes.
8. Enter security code with A key or B key. With [O], the security code is deac
tivated.
9. Press the Edit button.
èSwitch to the RUN mode.
5.7 Teach switching points (TEACH mode)
The process for teaching is the same for configuring the switching outputs
for OutA and OutB. In the following, the process is described using the
switching output OutA.
Requirement: The sensor is ready for operation (RUN mode).
1. Determine switching function
(è5.5 Configuring switching output (EDIT mode)).
2. Create pressure value 1.
3. Press the A key for the switching output OutA and also the Edit button.
With active security blocking: [lock] flashes.
4. Enter security code set with A key or B key.
5. Press the Edit button.
èThe parameter entry option is unblocked.
èThe current pressure value will then be adopted as the first teaching point
(TP1). [OutA] flashes.
6. Create pressure value 2.
7. Press the A key for the switching output OutA and also the Edit button.
èThe current pressure value is adopted as the second teaching point (TP2).
èSwitch to the RUN mode.

Menu structure EDIT mode1)
Measured value indicator (RUN mode)
OutA OutB lock / kPA / psi / bar
_|¯ _|¯, _|¯|_ _|¯ _|¯, _|¯|_ kPA kPA, psi, bar
SP / SP min 0…40…100 % FS2) SP / SP min 0…60…100 % FS2) lock 0=OFF, 1…1999
SP max 0…50…100 % FS2) SP max 0…70…100 % FS2)
HY 0…0.2…xx % FS2) HY 0…0.2…xx % FS2)
NO NO, NC NO NO, NC
Measured value indicator (RUN mode)
= Edit button
= A key or B key
bold = factory setting
1) The menu structure is depicted completely. Some menu options or setting values are not applicable, depending on the selected switching function.
2) The values refer to the respective measuring range. The display takes place in the selected unit.
Fig. 24
6 Operation
Note
Property damage due to high temperatures.
Extreme pneumatic conditions (high cycle rate with large pressure amplitude)
can heat the device over 80 °C.
 Select the operating conditions (in particular the ambient temperature, pres
sure amplitude, cycle rate, current consumption) such that the device does
not heat up above the maximum permitted operating temperature.
Restore factory settings
Restoring the factory settings causes the current settings to be lost.
1. Switch off the operating voltage.
2. Keep the A key and B key pressed down simultaneously.
3. Switch on the operating voltage.
4. Additionally press the Edit button.
èAll parameters are reset to the factory settings.
7 Maintenance and care
1. Switch off the energy sources (operating voltage, compressed air).
2. Clean sensor with non-abrasive cleaning agents.
8 Disassembly
1. Switch off the energy sources (operating voltage, compressed air).
2. Allow the sensor to cool off.
3. Separate connections from the sensor.
4. Loosen the mountings èFig. 25 to Fig. 28
SDE1-G2-MS SDE1-GS-R18/-R14
Fig. 25 Fig. 26
SDE1-G2-H/-W SDE1-GS-FQ4
1.
2.
Fig. 27 Fig. 28
9 Fault clearance
Malfunction Possible cause Remedy
No display No operating voltage or impermiss
ible operating voltage.
 Apply permissible operating
voltage.
No display Electrical connections swapped.  Connect the device in accordance
with the circuit diagram.
Device defective.  Replace device.
Incomplete display Display defective.  Replace device.
Incorrect pressure
display
Pressure failure  Eliminate pressure failure.
Only with SDE1-…-Q4: Pneumatic
connections swapped.
 Reconnect tubing to device
(è4.2 Pneumatic).
Device is operated with impermiss
ible medium.
 Replace device. Only operate with
compressed air.
Pressure indicator
flashes.
Measuring range exceeded.  Comply with the measuring range.
Switching output
does not react in
accordance with
the settings.
Short circuit or overload at the out
put.
 Eliminate short circuit or over
load.
Incorrect switching point taught
(e.g. at 0 bar)
 Repeat teaching.
Device defective.  Replace device.
Fig. 29
10 Accessories
Accessories èwww.festo.com/catalogue

11 Technical data
SDE1- -V1 -B2 -D2 -D6 -D10
General information
Certification RCM Mark, c UL us - Recognized (OL) 1)
CE marking (èDeclaration of conformity) In accordance with EU EMC directive
Note on materials Free of copper and PTFE
RoHS compliant
Input signal / measuring element
Operating medium Compressed air in accordance with ISO
8573-1:2010 [7:4:4], lubricated operation
possible
Temperature of medium [°C] 0 … +50
Ambient temperature [°C] 0 … +50
Output, general
Accuracy [% FS] ±2 at room temperature
±3 in the entire temperature range
Repetition accuracy [% FS] ± 0.3 (short time)
Switching output
Switch-on time [ms] Typical 5 / max. 10
Switch-off time [ms] Typical 5 / max. 10
Max. output current [mA] 150
Capacitive load maximum DC [nF] 100
Inductive protective circuit Present
Analogue output
Analogue output [V] 0 … 10
[mA] 4 … 20
Minimum operating quality under
influence of noise
[% FS] Max. drift at analog output < 5
Accuracy [% FS] ± 3 at room temperature
±4 in the entire temperature range
Max. load current of the voltage
output
[mA] 5
Max. load resistance of current out
put
[Ω] 300
Output, additional data
Protection against short circuit Pulsed
Electronics
Operating voltage range DC [V] 15 … 30
Idle current [mA] SDE1-…-C: Max. 35 (approx. 30 typ.)
SDE1-…-L: Max. 45 (approx. 40 typ.)
Ready-state delay [ms] Max. 450 (with suppression of incorrect switch-
on pulse)
Protection against polarity reversal For all electrical connections
Mechanicals
Mounting position Any, avoid condensation gathering in the sensor
Housing material PA, POM reinforced
Material of keys PA
Material of display PC
Display / operation
Switching pressure setting range bar -0.020
…
-0.998
-0.999
…
0.996
0.040
…
1.996
0.12
…
5.99
0.20
…
9.98
Hysteresis setting range bar 0.000
…
0.900
0.000
…
1.800
0.000
…
1.800
0.00
…
5.40
0.00
…
9.00
Immissions / emissions
Storage temperature [°C] –20 … +80
Degree of protection (in accordance with
EN 60529)
IP65
Protection class (in accordance with
DIN VDE 0106-1)
III
Resistance to shocks (in accordance with
EN 60068-2)
30 g acceleration with 11 ms duration (half-sine)
Vibration resistance (in accordance with
EN 60068-2)
10 … 60 Hz: 0.35 mm / 60 … 150 HZ: 5 g
1) Front panel built-in devices SDE1-…-FQ4-… have no UL certification.
Fig. 30
SDE1- -V1 -B2 -D2 -D6 -D10
Pressure measuring range
Starting value
[bar]
[MPa]
0
0
-1
-0.1
0
0
Pressure measuring range
Final value
[bar]
[MPa]
-1
-0.1
1
0.1
2
0.2
6
0.6
10
1
Overload range
Initial value
[bar]
[MPa]
-1
-0.1
Overload range
Final value
[bar]
[MPa]
5
0.5
5
0.5
6
0.6
16
1.6
20
2
Fig. 31
12 Hole pattern
Fig. 32