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10 Troubleshooting
10.1 Response to malfunctions
If malfunctions occur with unknown causes, exchange the pressure switch
u
with an original pressure switch.
The individual components of the pressure switch cannot be replaced
or repaired.
If you cannot remedy a malfunction, please contact one of the addresses, see the
back of the instructions.
11 Technical data
General
Specifications
Ambient and medium
-20°C to +80°C
temperature
Protection class ac-
IP65
cording to EN 60529/
IEC529
Pneumatics
Medium
Compressed air acc. to ISO 8573-1: 2010,
• Max. particle size: 40 µm
• Pressure dew point ≤ 3°C
• Oil content: max. 40 mg/m3
The pressure dew point must be at least 15°C below the ambient and medium temperatures
and must not exceed 3°C.
The oil content of compressed air must remain constant during the service life.
u Use only the approved oils from AVENTICS.
Switching pressure
• –0.9 bar to 1 bar (see g Fig. 8)
range
• 0.2 bar to 16 bar (min. switching pressure range 0.2 bar fall-
ing/0.5 bar rising) (see g Fig. 9)
Max. switching fre-
1.6 Hz
quency
Electronics
Min./max. operating
12 V–125 V DC
voltage
12 V–250 V AC
Further technical data can be found in our online catalog.
Standards and directives complied with
EN IEC 60079-0:2018
EN IEC 60079-15:2019
EN 60079-31:2014
11.1 Switching capacity
Type
Current type
Load type
PM1
AC
Resistive load
Inductive load
DC
Resistive load
Inductive load
2)
Reference cycle 30/min. reference temperature: +30°C, U = 30 V
3)
Inductive load: AC = cos ~ 0.7°; DC = L/R ~ 10 ms
AVENTICS™ PM1 | R412018626-BAL-001-AI | English
Explosive atmospheres – Part 0:
Equipment - General requirements
Explosive atmospheres – Part 15:
Equipment protection via type of ignition
protection "n"
Explosive atmospheres – Part 31:
Equipment - Protection against dust explo-
sion with housing "t"
Switching voltage [V AC]
30
48
60
125
Max. switching current [A]
3
3
3
3
3)
3
3
3
3
3
1.2
0.8
0.4
2)
2
0.55
0.4
0.05
12 Differential switching pressure characteristic
curve
+1,2
+1,1
+1,0
+0,9
+0,8
+0,7
+0,6
+0,5
+0,4
+0,3
+0,3
+0,1
p1 (-)
-0,1
[bar]
-0,2
-0,3
-0,4
-0,5
-0,6
-0,7
-0,8
-0,9
-1,0
-1,0
-0,8
Fig. 8: Differential switching pressure characteristic curve (-0.9 – 1 bar)
1
Rising
2
Falling
p1 (+)
Upper switching pressure with increasing pressure
p1 (-)
Lower switching pressure with decreasing pressure
p
(+) bar
1
16
15
14
13
12
11
10
9
8
∆ p
1
7
6
5
4
3
2
1
0
0
A)
Fig. 9: Differential switching pressure characteristic curve (0.2 – 16 bar)
A) p1 (-)
Min.
B) p1 (-)
Max.
250
p1 (+)
Upper switching pressure with increasing pressure
fn:2
p1 (-)
Lower switching pressure with decreasing pressure
Δ p1
Max. switching pressure difference or hysteresis
3
3
Example:
p1 (+) = 8 bar > p1(-) = 7.6 bar
Δ p1 = 0.4 bar
p1 (+)
[bar]
-0,6
-0,4
-0,2
+0,2
+0,4
p1 (-)
[bar]
2
4
6
8
10
12
1)
2)
p1 (+)
[bar]
+0,6
+0,8
+1,0
14
16
p
(-) bar
1
B)
11
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