3_可调式压力开关Type901p系列选型资料_english
Beck.
The adjustable
pressure switches Prescal®.
Pressure switch 901 Prescal®
with adjustable setting
Application
Adjustable pressure switch monitoring overpressure, vacuum or differential pressure of liquid and gaseous – also aggressive – media.
The pressure switch uses a scaled adjustment knob to enable
Arrangement of contacts
for 901.6x, 901.8x, only for 901.7x 901.9x
2 2
the adjustment of trip and reset pressure without the use of a 3
screwdriver. 1
Temperature range
Ambient temperature from –20° C to 85° C.
3
– P 1
Temperature of media from 85° C or 130° C depending on
material of pressure connection and diaphragm.
Diaphragm material
Depending on media NBR, Silicone, FKM (Viton®), EPDM. For 901.8x Silicone, others upon request.
Electrical rating
Values indicated for resistive load
AgNi-contacts: 6 (1.5) A/250 VAC 2 A/24 VDC
Gold-plated contacts: 100 mA/24 VAC
30 mA/24 VDC
AgNi-contacts up to 10 A/250 VAC can be supplied upon request.
Electrical connection
AMP connection 6.3 mm x 0.8 mm DIN 46244.
CE Conformity
each depending on technical specification: Low Voltage Directive 2006/95/EC; RoHS Directive 2011/65/EC; ATEX- Directive 94/9/EC; Gas Appliance Directive 90/396/EC (only for Type 901.61 to 901.65 with brass pressure connection).
Life
Minimum 106 cycles.
Damping
Restrictors alternatively with 0.3/0.5/0.8 mm diameter.
Accessories
Various mounting brackets and protection caps with IP 44, IP 54 and IP 65.
Mounting position
Mounting in any position, to be specified for settings below 100 mbar.
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 | |||
901.61– 65 | PA | PA, PPS | PA, PPS | PA, PVDF CuZn40, V2A | PA, PVDF CuZn40, V2A | CuZn40, V2A | CuZn40 | ||
901.66 – 68 | CuZn40, V2A | CuZn40, V2A | CuZn40, V2A | CuZn40 | |||||
901.71– 76 | PA | PA,PPS | PA,PPS | PA,PVDF CuZn40, V2A | PA, PVDF CuZn40, V2A | CuZn40, V2A | |||
901.77– 78 | CuZn40, V2A | CuZn40, V2A | CuZn40, V2A | CuZn40 | |||||
901.8x | PA | ||||||||
901.91–93 | CuZn40 | CuZn40, V2A | CuZn40, V2A | ||||||
PA = polyamide, PVDF = polyvinyldifluoride, PPS = polyphenylensulfide, CuZn40 = brass, V2A = stainless steel
For temperature above 85° C metal or PPS pressure connection is required. Upon request pressure connections of other sizes, other plastics or brass nickel-plated are available.
Viton® is a registered trademark of DuPont Dow Elastomers.
Prescal® is a registered trademark of Beck GmbH Druckkontrolltechnik.
Overpressure range
Type | Adjustment range for trip pressure from to | Tolerance band in % of | Switching differential | Maximum positive working pressure standard/extended | Maximum negative working pressure standard/extended | |
901.61 | 5 | 20 mbar | ± 10 % | 3 mbar | 0.5/4 bar | –/–1 bar |
901.62 | 10 | 50 mbar | ± 10 % | 5 mbar | 0.5/4 bar | –/–1 bar |
901.63 | 25 | 100 mbar | ± 10 % | 10 mbar | 0.5/4 bar | –/–1 bar |
901.64 | 50 | 250 mbar | ± 10 % | 20 mbar | 1/4 bar | –/–1 bar |
901.65 | 100 | 500 mbar | ± 10 % | 50 mbar | 1/4 bar | –/–1 bar |
901.66 | 250 | 1.000 mbar | ± 10 % | 150 mbar | 10 bar | –1 bar |
901.67 | 500 | 1.500 mbar | ± 10 % | 250 mbar | 10 bar | –1 bar |
901.68 | 1.000 | 3.000 mbar | ± 10 % | 500 mbar | 10 bar | –1 bar |
901.91 | 1.0 6.0 bar | ± 10 % | 0.5 – 2.0 bar | 25 bar | –1 bar | |
901.92 | 4.0 9.0 bar | ± 10 % | 0.5 – 2.0 bar | 25 bar | –1 bar | |
901.93 | 7.0 12.0 bar | ± 10 % | 0.5 – 2.0 bar | 25 bar | –1 bar | |
Vacuum range
901.71 | – 5 – 20 mbar | ± 10 % | 3 mbar | 0.5/4 bar | –1 bar |
901.72 | – 10 – 50 mbar | ± 10 % | 5 mbar | 0.5/4 bar | –1 bar |
901.73 | – 25 – 100 mbar | ± 10 % | 10 mbar | 0.5/4 bar | –1 bar |
901.74 | – 50 – 125 mbar | ± 10 % | 20 mbar | 0.5/4 bar | –1 bar |
901.75 | – 75 – 200 mbar | ± 10 % | 25 mbar | 1/4 bar | –1 bar |
901.76 | – 100 – 300 mbar | ± 10 % | 30 mbar | 1/4 bar | –1 bar |
901.77 | – 200 – 500 mbar | ± 10 % | 75 mbar | 1/4 bar | –1 bar |
901.78 | – 300 – 700 mbar | ± 10 % | 75 mbar | 1/4 bar | –1 bar |
Differential pressure range
901.81 | 5 20 mbar | ± 10 % | 3 mbar | 100 mbar | –100 mbar |
901.82 | 10 50 mbar | ± 10 % | 5 mbar | 100 mbar | –100 mbar |
Pressure switch 901 Prescal®
with adjustable setting
901.6x/7x 901.8x
Protection caps 6329 IP 44
50.5 |
Ø 45
13 |
45.5 |
53.5 |
Ø6.5 |
29 |
15 |
23 |
23 |
15 |
11 |
901.6x/7x 901.9x
Ø 45
Ø 45
901p_data_english03/2014 |
Technicaldatasubjecttochangewithoutpriornotice. |
Copyright©2014BeckGmbH |
13 |
45.5 |
16 |
50.5 |
12 |
22 |
22 |
12 |
35 |
50 |
6403 6404 6405
6374 IP 54 / 6375 IP 65
54 |
30 |
50 |
11 |
22 |
Beck GmbH Druckkontrolltechnik
P.O. Box 11 31
D-71140 Steinenbronn
