Emerson AVENTICS PM1, Руководство по эксплуатации

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10 Troubleshooting
10.1 Response to malfunctions
u
If malfunctions occur with unknown causes, exchange the pressure switch
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
temperature -20°C to +80°C
Protection class ac-
cording to EN 60529/
IEC529 IP65
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
range • –0.9 bar to 1 bar (see g Fig. 8)
• 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-
quency 1.6 Hz
Electronics
Min./max. operating
voltage 12 V–125 V DC
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 Explosive atmospheres – Part 0:
Equipment - General requirements
EN IEC 60079-15:2019 Explosive atmospheres – Part 15:
Equipment protection via type of ignition
protection “n”
EN 60079-31:2014 Explosive atmospheres – Part 31:
Equipment - Protection against dust explo-
sion with housing “t”
11.1 Switching capacity
Switching voltage [V AC]
30 48 60 125 250
Type Current type Load type Max. switching current [A]
fn:2
PM1 AC Resistive load 3 3 3 3 3
Inductive load
3)
3 3 3 3 3
DC Resistive load 3 1.2 0.8 0.4
Inductive load 2) 2 0.55 0.4 0.05
2)
Reference cycle 30/min. reference temperature: +30°C, U = 30 V
3)
Inductive load: AC = cos ~ 0.7°; DC = L/R ~ 10 ms
12 Differential switching pressure characteristic
curve
[bar]
p1 (-)
[bar]
p1 (+)
[bar]
p1 (-)
[bar]
p1 (+)
+0,1
+0,3
+0,3
+0,4
+0,5
+0,6
+0,7
+0,8
-0,8
-0,7
-1,0
-1,0 -0,8 -0,6 -0,4 -0,2 +0,4 +0,6 +0,8 +1,0 +0,2
-0,9
-0,6
-0,5
-0,4
-0,3
-0,2
-0,1
+0,9
+1,0
+1,1
+1,2
1)
2)
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
16
p
1
(+) bar
∆ p
1
p
1
(-) bar
B) A)
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0 2 4 6 8 10 12 14 16
Fig. 9: Differential switching pressure characteristic curve (0.2 – 16 bar)
A) p1 (-) Min.
B) p1 (-) Max.
p1 (+) Upper switching pressure with increasing pressure
p1 (-) Lower switching pressure with decreasing pressure
Δ p1 Max. switching pressure difference or hysteresis
Example:
p1 (+) = 8 bar > p1(-) = 7.6 bar
Δ p1 = 0.4 bar
AVENTICS™ PM1 | R412018626-BAL-001-AI | English 11