INFICON VACUUM SWITCH

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INFICON VACUUM SWITCH

INFICON Vacuum Switch is created for accurate and reliable detecting pressure. These durable electronic switches are used in a variety of vacuum applications, including pressure interlock. The vacuum switch come in two varieties: absolute (references vacuum) and differential (references ambient).

FEATURES

IP 44 protection
Relay output with potential free contacts
High-accuracy temperature compensated sensor
Application pressure range 1×10-9 mbar … 2 bar

ADVANTAGES

Corrosion resistant all stainless steel design
Robust design, cleanroom compliant
Easy installation with setpoints factory preset or field-adjustable

TYPICAL APPLICATIONS

Atmospheric pressure detection for all vacuum applications
Pressure interlock (power supplies, gas supplies, pumps, valves, actuators, etc.)
Vacuum to high vacuum

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ABSOLUTE VACUUM SWITCH

Setpoint relay
Type		1100 mbar	1000 Torr
Full Scale (F.S.)		1100	1000
Setpoint range		–	–
Admissible pressure	bar (absolute)	5	5
Relay output	Relay output	n.o., n.c., potential free	n.o., n.c., potential free
Contact rating		30	30
Setpoint accuracy	Torr	± 5	± 5
Temperature effect on zero and span	percent FS/°C	≤±0.02	≤±0.02
Response time	ms	≤45	≤45
Hysteresis	Torr	20	20
Electrical connection		D-Sub, 9-pin	D-Sub, 9-pin
Supply voltage	V (dc)	14 … 30	14 … 30
Power consumption	W	<0.5	<0.5
Admissible temperature
Operation (ambient)	°C	0 … 70	0 … 70
Storage	°C	–40 … 80	–40 … 80
Materials exposed to vacuum		stainless steel	stainless steel
Mounting orientation		any	any
Internal volume
DN 16 ISO-KF	cm³ (in.³)	2.81 (0.17)	2.81 (0.17)
4 VCR	cm³ (in.³)	0.93 (0.057)	0.93 (0.057)
Weight	g	140	140
Degree of protection		IP 40	IP 40
Sensor protection		Short circuit protection and reverse polarity protection	Short circuit protection and reverse polarity protection

DIFFERENTIAL VACUUM SWITCH

Setpoint relay
Type		-100 … +50 Torr	-100 … +50 mbar
Differential range (1)		–	–
Setpoint range		–99 … +46	–99 … +46
Admissible pressure	bar (absolute)	2	2
Relay output	Relay output	n.o., n.c., potential free	n.o., n.c., potential free
Contact rating		30	30
Setpoint accuracy	Torr	±0.75	±0.75
Temperature effect on zero and span	percent FS/°C	≤±0.02	≤±0.02
Response time	ms	≤45	≤45
Hysteresis	Torr	3	3
Electrical connection		D-Sub, 9-pin	D-Sub, 9-pin
Supply voltage	V (dc)	14 … 30	14 … 30
Power consumption	W	<0.5	<0.5
Admissible temperature
Operation (ambient)	°C	0 … 70	0 … 70
Storage	°C	–40 … 80	–40 … 80
Materials exposed to vacuum		stainless steel	stainless steel
Mounting orientation		any	any
Internal volume
DN 16 ISO-KF	cm³ (in.³)	2.81 (0.17)	2.81 (0.17)
4 VCR	cm³ (in.³)	0.93 (0.057)	0.93 (0.057)
Weight	g	140	140
Degree of protection		IP 40	IP 40
Sensor protection		Short circuit protection and reverse polarity protection	Short circuit protection and reverse polarity protection