4
3 Function and features
The pressure monitor detects the system pressure and switches the two
complementary outputs OUT1 (pin 4) / OUT2 (pin 2):
• In case of increasing pressure OUT1 closes / OUT2 opens when the set Set
value is reached�
• In case of decreasing pressure OUT1 opens / OUT2 closes when the set Reset
value is reached�
Applications
Type of pressure: relative pressure
Order no.
Measuring range
Permissible
overload pressure
Bursting
pressure
bar
MPa
bar
MPa
bar
MPa
PK6730
0���400
0���40
600
60
1 600
160
PK6731
0���250
0���25
400
40
1 000
100
PK6732
0���100
0���10
200
20
1 000
100
PK6734
0���10
0���1
25
2�5
300
30
Avoid static and dynamic overpressure exceeding the given overload
pressure�
Even if the bursting pressure is exceeded only for a short time the unit can
be destroyed (danger of injuries)!
If the cable length exceeds 30 m or if used outside buildings, there is a risk
of overvoltage pulses from external sources� We recommend to use the
unit in protected operating environments and to limit overvoltage pulses to
max� 500 V�
4 Installation
Before mounting and removing the sensor, make sure that no pressure is
applied to the system�
5 Electrical connection
The unit must be connected by a suitably qualified electrician�
Voltage supply to EN50178, SELV, PELV�
►
Disconnect power before connecting the unit�
