Pressure switches with variable set point - 901 PRESCAL series
  • Pressure switches with variable set point - 901 PRESCAL series
  • Pressure switches with variable set point - 901 PRESCAL series
  • Pressure switches with variable set point - 901 PRESCAL series
  • Pressure switches with variable set point - 901 PRESCAL series
  • Pressure switches with variable set point - 901 PRESCAL series

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Manufacturer: Beck

Pressure switches with variable set point - 901 PRESCAL series

Technical data

Ambient temperature: -20...85°C
Temperature of media: 85°C or 130°C depending on material of pressure connection and diaphragm
AgCdO-contacts: 6A(1,5)/250VAC
  2A/24VDC
Gold-plated contacts: 100mA / 24VDC
  30mA / 24VDC
AgNi-contacts: up to 10 A/250 VAC can be supplied upon request
Diaphragm material: Depending on media NBR, Silicone, FKM (Viton®), EPDM; for 901.8x Silicone; others upon request
Electrical connection: 6,3x0,8mm DIN 46244
Life: Minimum 10 x 10 6 cycles

Overpressure range
Type Adjustment range for trip pressure Tolerance Switching differential Maximum positive working pressure Maximum negative working pressure
from up to
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 1000 mbar ±10 % 150 mbar 7 bar -1 bar
901.67 500 1500 mbar ±10 % 250 mbar 7 bar -1 bar
901.68 1000 3000 mbar ±10 % 500 mbar 7 bar -1 bar
901.91 1 6 bar ±10 % 0,5-2 bar 25 bar -1 bar
901.92 4 9 bar ±10 % 0,5-2 bar 25 bar -1 bar
901.93 7 12 bar ±10 % 0,5-2 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

Arrangement of contacts

Pressure connection

Type Tube connection Threaded connection
5,0 mm
FS		 6,5 mm
FS		 10,0 mm
FS		 M10x1 G1/8 M10x1 G1/8 G1/4 G1/2
901.61-65 PA PA
PPS		 PA
PPS		 PA
PVDF		 PA
PVDF		 CuZn40 CuZn40 CuZn40 PVDF CuZn40
901.66-68           CuZn40 CuZn40 CuZn40 PVDF CuZn40
901.71-76 PA PA
PPS		 PA
PPS		 PA
PVDF		 PA
PVDF		 CuZn40 CuZn40 CuZn40  
901.77-78           CuZn40 CuZn40 CuZn40 PVDF CuZn40
901.8x           CuZn40 CuZn40 CuZn40  
901.91-93             CuZn40 CuZn40 PVDF CuZn40

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.

Dimensions [mm]

901.6x/7x
WYŁĄCZNIKI CIŚNIENIOWE ZE ZMIENNĄ NASTAWĄ SERII 901 PRESCAL wymairy 901.6x/7x		 901.8x
WYŁĄCZNIKI CIŚNIENIOWE ZE ZMIENNĄ NASTAWĄ SERII 901 PRESCAL wymiary 901.8x		 901.6x/7x
WYŁĄCZNIKI CIŚNIENIOWE ZE ZMIENNĄ NASTAWĄ SERII 901 PRESCAL wymiary 901.6x/7x		 901.9x
WYŁĄCZNIKI CIŚNIENIOWE ZE ZMIENNĄ NASTAWĄ SERII 901 PRESCAL wymiary 901.9x

Protection caps - dimensions [mm]

6321 IP 10
 63 IP44
WYŁĄCZNIKI CIŚNIENIOWE ZE ZMIENNĄ NASTAWĄ SERII 901 PRESCAL wymiary 63 IP 44		 6371 IP 54 / 6372 IP 65
WYŁĄCZNIKI CIŚNIENIOWE ZE ZMIENNĄ NASTAWĄ SERII 901 PRESCAL 6371 IP54/6372 IP 65		 6374 IP 54 / 6375 IP 65
WYŁĄCZNIKI CIŚNIENIOWE ZE ZMIENNĄ NASTAWĄ SERII 901 PRESCAL wymiary 6374 IP54/6375 IP65

Mounting brackets - dimensions [mm]

6403 / 6464 / 6405

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Technical data

Ambient temperature: -20...85°C
Temperature of media: 85°C or 130°C depending on material of pressure connection and diaphragm
AgCdO-contacts: 6A(1,5)/250VAC
  2A/24VDC
Gold-plated contacts: 100mA / 24VDC
  30mA / 24VDC
AgNi-contacts: up to 10 A/250 VAC can be supplied upon request
Diaphragm material: Depending on media NBR, Silicone, FKM (Viton®), EPDM; for 901.8x Silicone; others upon request
Electrical connection: 6,3x0,8mm DIN 46244
Life: Minimum 10 x 10 6 cycles

Overpressure range
Type Adjustment range for trip pressure Tolerance Switching differential Maximum positive working pressure Maximum negative working pressure
from up to
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 1000 mbar ±10 % 150 mbar 7 bar -1 bar
901.67 500 1500 mbar ±10 % 250 mbar 7 bar -1 bar
901.68 1000 3000 mbar ±10 % 500 mbar 7 bar -1 bar
901.91 1 6 bar ±10 % 0,5-2 bar 25 bar -1 bar
901.92 4 9 bar ±10 % 0,5-2 bar 25 bar -1 bar
901.93 7 12 bar ±10 % 0,5-2 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

Arrangement of contacts

Pressure connection

Type Tube connection Threaded connection
5,0 mm
FS		 6,5 mm
FS		 10,0 mm
FS		 M10x1 G1/8 M10x1 G1/8 G1/4 G1/2
901.61-65 PA PA
PPS		 PA
PPS		 PA
PVDF		 PA
PVDF		 CuZn40 CuZn40 CuZn40 PVDF CuZn40
901.66-68           CuZn40 CuZn40 CuZn40 PVDF CuZn40
901.71-76 PA PA
PPS		 PA
PPS		 PA
PVDF		 PA
PVDF		 CuZn40 CuZn40 CuZn40  
901.77-78           CuZn40 CuZn40 CuZn40 PVDF CuZn40
901.8x           CuZn40 CuZn40 CuZn40  
901.91-93             CuZn40 CuZn40 PVDF CuZn40

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.

Dimensions [mm]

901.6x/7x
WYŁĄCZNIKI CIŚNIENIOWE ZE ZMIENNĄ NASTAWĄ SERII 901 PRESCAL wymairy 901.6x/7x		 901.8x
WYŁĄCZNIKI CIŚNIENIOWE ZE ZMIENNĄ NASTAWĄ SERII 901 PRESCAL wymiary 901.8x		 901.6x/7x
WYŁĄCZNIKI CIŚNIENIOWE ZE ZMIENNĄ NASTAWĄ SERII 901 PRESCAL wymiary 901.6x/7x		 901.9x
WYŁĄCZNIKI CIŚNIENIOWE ZE ZMIENNĄ NASTAWĄ SERII 901 PRESCAL wymiary 901.9x

Protection caps - dimensions [mm]

6321 IP 10
 63 IP44
WYŁĄCZNIKI CIŚNIENIOWE ZE ZMIENNĄ NASTAWĄ SERII 901 PRESCAL wymiary 63 IP 44		 6371 IP 54 / 6372 IP 65
WYŁĄCZNIKI CIŚNIENIOWE ZE ZMIENNĄ NASTAWĄ SERII 901 PRESCAL 6371 IP54/6372 IP 65		 6374 IP 54 / 6375 IP 65
WYŁĄCZNIKI CIŚNIENIOWE ZE ZMIENNĄ NASTAWĄ SERII 901 PRESCAL wymiary 6374 IP54/6375 IP65

Mounting brackets - dimensions [mm]

6403 / 6464 / 6405

Less
Read more
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