Translation of the original instructions
© 2020 all rights reserved to Festo SE & Co. KG
1
About this document
1.1
Applicable Documents
All available documents for the product
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2
Safety
2.1
General safety instructions
–
Only use the product in original status without unauthorised modifications.
–
Only use the product if it is in perfect technical condition.
–
Only use media in accordance with the specifications
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Technical data.
–
Observe labelling on the product.
–
Note that changes to the switching status (EDIT mode) become effective
immediately.
2.2
Intended use
The product is intended for monitoring the pressure of compressed air and inert
gases in the piping.
2.3
Training of qualified personnel
Work on the product should only be conducted by qualified personnel.
3
Service
Contact your regional Festo contact person if you have technical questions
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4
Product overview
4.1
Function
The sensor converts pneumatic pressure values (relative pressure) into electrical
signals, which can be used for control or regulating functions. Measurements are
carried out using a piezoresistive sensor element with a downstream electronic
evaluation unit. The connection to the higher-level system is established via a
switching output.
The switching output can be configured to monitor a threshold value or a pressure
range. The PNP or NPN and the normally open (N/O) or normally closed (N/C) out-
put can be optionally set in this process.
4.1.1
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
Tab. 1
4.1.2
Switching functions
Threshold value comparator for monitoring of a pressure threshold _|¯
Function
N/O (normally open)
N/C (normally closed)
Switching function:
–
1 switching point (SP)
TEACH mode:
–
2 teach points (TP1, TP2)
–
SP = ½ (TP1+TP2)
TP1 TP2
HY
1
0
Out
p
SP
TP1 TP2
SP
HY
1
0
Out
p
Tab. 2
Window comparator for monitoring of a pressure range _|¯|_
Function
N/O (normally open)
N/C (normally closed)
Switching function:
–
2 switching points (SP.Lo,
SP.Hi)
TEACH mode
1)
:
–
2 teach points (TP1, TP2)
–
TP1 = SP.Lo, TP2 = SP.Hi
HY HY
TP1=SP.Lo TP2=SP.Hi
1
0
Out
p
HY HY
TP1=SP.Lo TP2=SP.Hi
1
0
Out
p
1) SP.Lo = lower pressure/vacuum value, SP.Hi = higher pressure/vacuum value, dependent on the Teach
sequence
Tab. 3
4.2
Configuration
4.2.1
Product design
1 Display
2 A pushbutton
3 EDIT pushbutton
4 B pushbutton
5 Pneumatic port
6 Electrical connection
Fig. 1 Product design
5
Installation
5.1
Mechanical and pneumatic
NOTICE!
An unfavourable mounting position may impair the function of the product.
•
Mount the sensor so that condensation from the compressed air lines cannot
accumulate in the device.
•
Install the sensor so that it cannot be heated above the maximum permissible
operating temperature (plan for convection possibilities).
–
Remove all transport packaging. The material used in the packaging has been
specifically chosen for its recyclability.
–
Avoid applying force to the sensor housing during mechanical and pneumatic
assembly.
SPAN-B-…-G18M/R18M
•
Seal connecting thread.
Fig. 2 Example with G18M
8140082
SPAN-B
Pressure sensor
8140082
2020-06
[8140084]
Operating instructions
Festo SE & Co. KG
Ruiter Straße 82
73734 Esslingen
Germany
+49 711 347-0
www.festo.com
