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Back pressure type level switch LT1-LT1-ANNA
Back pressure type level switch LT1-RKC INSTRUMENT

Back pressure type level switch LT1
RKC INSTRUMENT

RKC INSTRUMENT's Response Status

Response Rate

100.0%

Response Time

10.1hours

Fast Response


About This Product

■Detect upper and lower limit levels of liquid with one tube

・Outputs the level when the tube tip touches the liquid surface as an alarm. ・If PFA tube is used, it can also be used with corrosive chemicals.

■High reliability

A semiconductor pressure sensor (back pressure sensor) is used in the sensor section. High reliability and reproducibility are achieved due to the structure without mechanical drive parts.

■No adjustment required

・Set the tube length to your desired length and you're ready to go. - Built-in orifice in the main body. If you supply air gas of 20±1kPa, it will automatically reach the specified purge flow rate for the main unit. *Other product numbers are available.

  • Product

    Back pressure type level switch LT1

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10 Models of Back pressure type level switch LT1

Click on the part number for more information about each product

Image Part Number Price (excluding tax) Power supply voltage Power display Mass Permissible ambient humidity Permissible ambient temperature Withstand voltage Insulation resistance Power consumption Detection tube length Detection tube inner diameter Sensitivity Response time Hysteresis Installation method Mounting position Output display Number of output points Output type Number of input points Input media consumption Input medium pressure Input medium Input pressure range Type
Back pressure type level switch LT1-Part Number-LT1-ANNA

LT1-ANNA

Available upon quote

DC21.6~26.4V (including power supply voltage fluctuation) (rated DC24V)

Green LED on

Approximately 250g

35~85%RH (no condensation)

0~50℃

Between power supply terminal and output terminal 2,300V AC for 1 minute

Between power supply terminal and output terminal 500V DC 20MΩ or more

Maximum 45mA or less (DC24V) *At maximum load

Max 5m

Φ4mm

Standard

0.2 seconds

Within 3 seconds

4 locations on the bottom (M3 screws)

Position higher than the measured liquid level

Green LED on

Excitation

Relay contact output 1c contact
AC250V 3A (resistive load), DC30V 3A

1 point

40~100ml/min

20~49kPa

Non-corrosive gas

0~49kPa

Main unit alone

Back pressure type level switch LT1-Part Number-LT1-BNNA

LT1-BNNA

Available upon quote

DC21.6~26.4V (including power supply voltage fluctuation) (rated DC24V)

Green LED on

Approximately 250g

35~85%RH (no condensation)

0~50℃

Between power supply terminal and output terminal 2,300V AC for 1 minute

Between power supply terminal and output terminal 500V DC 20MΩ or more

Maximum 45mA or less (DC24V) *At maximum load

Max 5m

Φ4mm

Standard

0.2 seconds

Within 3 seconds

4 locations on the bottom (M3 screws)

Position higher than the measured liquid level

Green LED on

De-energized

Relay contact output 1c contact
AC250V 3A (resistive load), DC30V 3A

1 point

40~100ml/min

20~49kPa

Non-corrosive gas

0~49kPa

Main unit alone

Back pressure type level switch LT1-Part Number-LT1-1M-A

LT1-1M-A

Available upon quote

DC21.6~26.4V (including power supply voltage fluctuation) (rated DC24V)

Green LED on

Approximately 250g

35~85%RH (no condensation)

0~50℃

Between power supply terminal and output terminal 2,300V AC for 1 minute

Between power supply terminal and output terminal 500V DC 20MΩ or more

Maximum 45mA or less (DC24V) *At maximum load

Max 5m

Φ4mm

Standard

0.2 seconds

Within 3 seconds

4 locations on the bottom (M3 screws)

Position higher than the measured liquid level

Green LED on

Relay output excitation type

Relay contact output 1c contact
AC250V 3A (resistive load), DC30V 3A

1 point

40~100ml/min

20~49kPa

Non-corrosive gas

0~49kPa

Connected type (bracket + main body) 1 unit connected
*Connection fittings are included.

Back pressure type level switch LT1-Part Number-LT1-1M-B

LT1-1M-B

Available upon quote

DC21.6~26.4V (including power supply voltage fluctuation) (rated DC24V)

Green LED on

Approximately 250g

35~85%RH (no condensation)

0~50℃

Between power supply terminal and output terminal 2,300V AC for 1 minute

Between power supply terminal and output terminal 500V DC 20MΩ or more

Maximum 45mA or less (DC24V) *At maximum load

Max 5m

Φ4mm

Standard

0.2 seconds

Within 3 seconds

4 locations on the bottom (M3 screws)

Position higher than the measured liquid level

Green LED on

Relay output de-energized type

Relay contact output 1c contact
AC250V 3A (resistive load), DC30V 3A

1 point

40~100ml/min

20~49kPa

Non-corrosive gas

0~49kPa

Connected type (bracket + main body) 1 unit connected
*Connection fittings are included.

Back pressure type level switch LT1-Part Number-LT1-1M-AA

LT1-1M-AA

Available upon quote

DC21.6~26.4V (including power supply voltage fluctuation) (rated DC24V)

Green LED on

Approximately 250g

35~85%RH (no condensation)

0~50℃

Between power supply terminal and output terminal 2,300V AC for 1 minute

Between power supply terminal and output terminal 500V DC 20MΩ or more

Maximum 45mA or less (DC24V) *At maximum load

Max 5m

Φ4mm

Standard

0.2 seconds

Within 3 seconds

4 locations on the bottom (M3 screws)

Position higher than the measured liquid level

Green LED on

Relay output excitation type

Relay contact output 1c contact
AC250V 3A (resistive load), DC30V 3A

1 point

40~100ml/min

20~49kPa

Non-corrosive gas

0~49kPa

Connected type (bracket + main body) 2 units connected
*Connection fittings are included.

Back pressure type level switch LT1-Part Number-LT1-1M-BB

LT1-1M-BB

Available upon quote

DC21.6~26.4V (including power supply voltage fluctuation) (rated DC24V)

Green LED on

Approximately 250g

35~85%RH (no condensation)

0~50℃

Between power supply terminal and output terminal 2,300V AC for 1 minute

Between power supply terminal and output terminal 500V DC 20MΩ or more

Maximum 45mA or less (DC24V) *At maximum load

Max 5m

Φ4mm

Standard

0.2 seconds

Within 3 seconds

4 locations on the bottom (M3 screws)

Position higher than the measured liquid level

Green LED on

Relay output de-energized type

Relay contact output 1c contact
AC250V 3A (resistive load), DC30V 3A

1 point

40~100ml/min

20~49kPa

Non-corrosive gas

0~49kPa

Connected type (bracket + main body) 2 units connected
*Connection fittings are included.

Back pressure type level switch LT1-Part Number-LT1-1M-AAA

LT1-1M-AAA

Available upon quote

DC21.6~26.4V (including power supply voltage fluctuation) (rated DC24V)

Green LED on

Approximately 250g

35~85%RH (no condensation)

0~50℃

Between power supply terminal and output terminal 2,300V AC for 1 minute

Between power supply terminal and output terminal 500V DC 20MΩ or more

Maximum 45mA or less (DC24V) *At maximum load

Max 5m

Φ4mm

Standard

0.2 seconds

Within 3 seconds

4 locations on the bottom (M3 screws)

Position higher than the measured liquid level

Green LED on

Relay output excitation type

Relay contact output 1c contact
AC250V 3A (resistive load), DC30V 3A

1 point

40~100ml/min

20~49kPa

Non-corrosive gas

0~49kPa

Connected type (bracket + main body) 3 units connected
*Connection fittings are included.

Back pressure type level switch LT1-Part Number-LT1-1M-BBB

LT1-1M-BBB

Available upon quote

DC21.6~26.4V (including power supply voltage fluctuation) (rated DC24V)

Green LED on

Approximately 250g

35~85%RH (no condensation)

0~50℃

Between power supply terminal and output terminal 2,300V AC for 1 minute

Between power supply terminal and output terminal 500V DC 20MΩ or more

Maximum 45mA or less (DC24V) *At maximum load

Max 5m

Φ4mm

Standard

0.2 seconds

Within 3 seconds

4 locations on the bottom (M3 screws)

Position higher than the measured liquid level

Green LED on

Relay output de-energized type

Relay contact output 1c contact
AC250V 3A (resistive load), DC30V 3A

1 point

40~100ml/min

20~49kPa

Non-corrosive gas

0~49kPa

Connected type (bracket + main body) 3 units connected
*Connection fittings are included.

Back pressure type level switch LT1-Part Number-LT1-1M-AAAA

LT1-1M-AAAA

Available upon quote

DC21.6~26.4V (including power supply voltage fluctuation) (rated DC24V)

Green LED on

Approximately 250g

35~85%RH (no condensation)

0~50℃

Between power supply terminal and output terminal 2,300V AC for 1 minute

Between power supply terminal and output terminal 500V DC 20MΩ or more

Maximum 45mA or less (DC24V) *At maximum load

Max 5m

Φ4mm

Standard

0.2 seconds

Within 3 seconds

4 locations on the bottom (M3 screws)

Position higher than the measured liquid level

Green LED on

Relay output excitation type

Relay contact output 1c contact
AC250V 3A (resistive load), DC30V 3A

1 point

40~100ml/min

20~49kPa

Non-corrosive gas

0~49kPa

Connected type (bracket + main body) 4 units connected
*Connection fittings are included.

Back pressure type level switch LT1-Part Number-LT1-1M-BBBB

LT1-1M-BBBB

Available upon quote

DC21.6~26.4V (including power supply voltage fluctuation) (rated DC24V)

Green LED on

Approximately 250g

35~85%RH (no condensation)

0~50℃

Between power supply terminal and output terminal 2,300V AC for 1 minute

Between power supply terminal and output terminal 500V DC 20MΩ or more

Maximum 45mA or less (DC24V) *At maximum load

Max 5m

Φ4mm

Standard

0.2 seconds

Within 3 seconds

4 locations on the bottom (M3 screws)

Position higher than the measured liquid level

Green LED on

Relay output de-energized type

Relay contact output 1c contact
AC250V 3A (resistive load), DC30V 3A

1 point

40~100ml/min

20~49kPa

Non-corrosive gas

0~49kPa

Connected type (bracket + main body) 4 units connected
*Connection fittings are included.

Click on the part number for more information about each product

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About Company Handling This Product

Response Rate

100.0%


Response Time

10.1hrs

Company Overview

RKC Instrument has been continually growing for over half a century and strives to be a solution provider of m...

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