Beck 901 EX Series, Operating Instructions Manual, Page: 12 / 18

Appendix
Technical data and dimensioned drawing
Beck GmbH
Druckkontrolltechnik
Ferdinand-Steinbeis-Straße 4
71144 Steinenbronn
Operating instructions – Pressure Switch – Model - 901...EX Rev.10
Page 12 of 18
9.1.1 Pressure switch 901
Factory-set pressure setting
Pressure connection
Type Tube connection
Threaded connection
5.0 mm 6.5 mm 10.0 mm
M 10 x1 G 1/8 G 1/4 G 1/2
901.1…EX PA PA, PPS PA, PPS PA, PVDF,
CuZn40, V
2
A
PA, PVDF,
CuZn40, V
2
A
PVDF,
CuZn40, V
2
A
CuZn40
901.2…EX PA PA, PPS PA, PPS PA, PVDF,
CuZn40, V
2
A
PA, PVDF,
CuZn40, V
2
A
PVDF,
CuZn40, V
2
A
CuZn40
901.30 EX PA
901.41 EX PA, PPS PA, PPS PA, PVDF,
CuZn40, V
2
A
PA, PVDF,
CuZn40, V
2
A
CuZn40, V
2
A CuZn40
901.51 EX CuZn40 CuZn40, V
2
A CuZn40, V
2
A
PA = polyamide, PVDF = polyvinyldifluoride, PPS = polyphenylensulfide, CuZn40 = brass, V
2
A = stainless steel
Overpressure range
Type Factory-set
trip pressure
between and
Standard switching
differential
lower end upper end
of range of range
Tolerance
band in % of
trip pressure
Maximum
positive
working
pressure
standard/
extended
Maximum
negative
working
pressure
standard/
extended
901.1...EX
5 mbar 200 mbar 2.5 mbar 50 mbar ±10 % 0.5/4 bar –/–1 bar
200 mbar 1000 mbar 50 mbar 150 mbar ±10 % 1/4 bar –/–1 bar
901.41 EX 500 mbar 3000 mbar 200 mbar 600 mbar ±10 % 10 bar –1 bar
901.51 EX 1.0 bar 12 bar 0.2 bar 1.5 bar ±10 % 25 bar –1 bar
Vacuum range
Type Factory-set
trip pressure
between and
Standard switching
differential
lower end upper end
of range of range
Tolerance
band in % of
trip pressure
Maximum
positive
working
pressure
standard/
extended
Maximum
negative
working
pressure
standard/
extended
901.2…EX – 5 mbar
– 200 mbar 2.5 mbar 50 mbar ±10 % 0.5/4 bar –1 bar
– 200 mbar – 900 mbar 50 mbar 150 mbar ±10 % 1/4 bar –1 bar
Differential pressure range
Type Factory-set
trip pressure
between and
Standard switching
differential
lower end upper end
of range of range
Tolerance
band in % of
trip pressure
Maximum
positive
working
pressure
standard/
extended
Maximum
negative
working
pressure
standard/
extended
901.30..EX 5 mbar 50 mbar 2.5 mbar 25 mbar ±10 % 100 mbar –100 mbar