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LYT Series Temperature Signal Isolator
Suitable for on-site RTD and thermocouple temperature sensors, converting their resistance/mV signals into isolated 4-20mA or similar signals before transmitting them to PLC/DCS systems. Addressing the following scenario challenges:
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① Signal interference and data instability between instruments and systems.
② The interface signals between the instrument and the system are different, requiring signal conversion.
③ One-way signal transforms into multiple signals, supplying automated instruments and control systems.
LYG-...2 Series Output-Type Isolator
Suitable for scenarios where signal interference occurs between instruments and equipment during signal transmission in automated instrumentation, control systems, and actuation structures—leading to system instability and erratic data fluctuations. Also ideal for situations where signals from different devices or instruments need to be converted due to their varying characteristics. For example, when a single signal needs to be split into multiple channels to simultaneously feed different pieces of equipment. ⚪ Addressing loop interference caused by multi-point grounding. ⚪ Addressing electromagnetic interference and the intrusion of high-order harmonic signals. ⚪ System-side current/voltage output is sent to the field-mounted valve positioner. ⚪ Applicable on-site equipment: valve positioners, electrical converters
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Suitable for measuring the pressure values of liquids, gases, or steam, integrating switch control, local display, and remote signal transmission functions. Key operation to set action values and action modes. The switch output is a passive dry contact signal (SPDT). Commonly used for: 1. Air compressor start-stop control; 2. Pipeline pressure high and low limit alarm, interlocking start-stop of pumps, etc. The pressure switch directly outputs switch signals, and its function can achieve the output switch control of a pressure transmitter + PLC/control instrument. This product has the following features:
● Supports 330° rotation of the body
● Multiple switch output
● Local display of pressure values
● Supports delayed alarm
● Key setting of action values
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● Supports 330° rotation of the body
● Multiple switch output
● Local display of pressure values
● Supports delayed alarm
● Key setting of action values
Suitable for measuring the pressure of liquids, gases, or vapors in explosion-proof environments, this device allows local switching control for interlocking purposes, displays pressure values on-site, and can transmit signals remotely to the control system. Key operations enable users to set the actuation value and mode. The switch output is a passive dry-contact signal (SPDT). Common applications include: 1. Start/stop control for air compressors; 2. High- and low-pressure alarms in pipelines, triggering interlocked pump start/stop sequences, etc. The pressure switch directly outputs a switching signal, delivering functionality equivalent to that of a pressure transmitter combined with PLC/control instrumentation for switch-based control. This product features the following characteristics:
● Suitable for use in explosion-proof environments
●Multi-channel digital output
● Display pressure values directly on-site
● Multiple alarm methods can be set.
● Set action values with buttons
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● Suitable for use in explosion-proof environments
●Multi-channel digital output
● Display pressure values directly on-site
● Multiple alarm methods can be set.
● Set action values with buttons
Suitable for measuring the pressure of liquids, gases, or steam, this device integrates switch control, local display, and remote signal transmission functions into one compact unit. Key operations allow users to set the actuation value and mode. The switch outputs come in PNP and NPN formats. Common applications include: 1. Start/stop control for air compressors; 2. High- and low-pressure alarms in hydraulic station pipelines, as well as interlocked pump start/stop sequences. The pressure switch directly provides a switching signal, offering functionality comparable to that of a pressure transmitter combined with PLC/control instrumentation for switch-based control output. This product features the following characteristics:
● Multiple-channel digital output
● Display pressure value directly on-site
● Resistant to Pulsating Pressure Shock
● Set action values with buttons
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● Multiple-channel digital output
● Display pressure value directly on-site
● Resistant to Pulsating Pressure Shock
● Set action values with buttons
Suitable for measuring the pressure of liquids, gases, or steam, this device integrates switch control, on-site display, and remote signal transmission functions into one compact unit. Key operations allow users to set the actuation value and mode. The switch output provides either PNP or NPN switching signals. Common applications include: 1. Start/stop control for air compressors; 2. High- and low-pressure alarms in hydraulic station pipelines, as well as interlocked pump start/stop sequences. The pressure switch directly outputs a switching signal, offering functionality comparable to that of a pressure transmitter combined with PLC/control instrumentation for switch-based control. This product features the following characteristics:
● Multiple-channel digital output
● Supports display inversion
● Display pressure value directly on-site
● Supports delayed alarm
● Set action values with buttons
●330° Body Rotation
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● Multiple-channel digital output
● Supports display inversion
● Display pressure value directly on-site
● Supports delayed alarm
● Set action values with buttons
●330° Body Rotation
LPS-S1 Diaphragm-Type Pressure Switch
Suitable for measuring the pressure of liquids, gases, or steam, this device compares the measured pressure value with a setpoint to trigger high- and low-limit alarms. The output signal is a passive dry-contact relay (SPDT). Common applications include: 1. Start/stop control for air compressors; 2. High- and low-pressure alarm systems in pipelines, as well as interlocked pump start/stop mechanisms. The pressure switch directly outputs an on/off signal, offering functionality equivalent to that of a pressure transmitter combined with PLC/control instrumentation for switch-based control. With its simple design, it excels in local control scenarios within compact automation systems. This product features the following characteristics:
● Fully welded diaphragm, zero leakage
●Mechanical principle, no power supply required
● High-quality microswitch with minimal dead zone
● The process interface is versatile, and both flange and threaded connections can be customized.
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● Fully welded diaphragm, zero leakage
●Mechanical principle, no power supply required
● High-quality microswitch with minimal dead zone
● The process interface is versatile, and both flange and threaded connections can be customized.
LPS-F1 Diaphragm-Type Negative Pressure Switch
Pressure measurement suitable for negative-pressure applications, enabling high- and low-limit alarms by comparing the measured pressure value with a setpoint. The output signal is a passive dry-contact relay (SPDT). Common applications include: 1. Vacuum pump start/stop control; 2. Vacuum level monitoring and interlock systems for pipelines or containers. The pressure switch directly outputs a switching signal, delivering functionality equivalent to that of a pressure transmitter combined with PLC/control instrumentation for switch-based control. With its simple design, it excels in local control scenarios within compact-sized systems. This product features the following key characteristics:
● Fully welded diaphragm, zero leakage
●Mechanical principle, no power supply required
● High-quality microswitch with minimal dead zone
● The process interface is versatile, and both flanges and threads can be customized.
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● Fully welded diaphragm, zero leakage
●Mechanical principle, no power supply required
● High-quality microswitch with minimal dead zone
● The process interface is versatile, and both flanges and threads can be customized.
LPS-C1 Diaphragm Differential Pressure Switch
Suitable for differential pressure measurement in both explosion-proof and non-explosion-proof areas, this device compares the measured pressure difference with a set value to trigger high- and low-limit alarms. The output signal is a passive dry-contact relay (SPDT). Common applications include:
1. Filter clogging prevention control;
2. Differential pressure balancing control between two vessels.
The pressure switch directly outputs a dry-contact signal, enabling functionality equivalent to that of a pressure transmitter combined with PLC/control instrumentation for switch-based control. With its simple design, it excels in on-site control scenarios within compact systems.
This product features the following key characteristics:
● Fully welded diaphragm, zero leakage
●Mechanical principle, no power required
● High-quality microswitch with minimal dead zone
● The process interface is versatile, and both flanges and threads can be customized.
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● Fully welded diaphragm, zero leakage
●Mechanical principle, no power required
● High-quality microswitch with minimal dead zone
● The process interface is versatile, and both flanges and threads can be customized.
LPS-M1 Diaphragm-Type Pressure Switch
Suitable for applications involving corrosive, viscous, easily crystallizing, or substances prone to solidification and containing suspended solids. The diaphragm is internally filled with inert silicone oil, while the special-material diaphragm directly contacts the process medium. The silicone oil transmits pressure to the sensor, enabling high- and low-limit alarms by comparing the measured pressure value against preset thresholds. The output signal is a passive dry-contact relay (SPDT).
Common applications include:
1. Acidic tail-gas pressure monitoring and alarm systems;
2. Pressure control in reaction vessels, etc.
The pressure switch directly outputs a dry-contact signal, delivering functionality equivalent to that of a pressure transmitter combined with PLC/control instrumentation for switch-based control. With its simple design, this product excels in on-site control scenarios within compact systems.
Key features of this product include:
● Fully welded diaphragm, zero leakage
●Mechanical principle, no power supply required
● High-quality microswitch with minimal dead zone
● The process interface is versatile, and both flanges and threads can be customized.
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● Fully welded diaphragm, zero leakage
●Mechanical principle, no power supply required
● High-quality microswitch with minimal dead zone
● The process interface is versatile, and both flanges and threads can be customized.
LPS-S2 Diaphragm Pressure Switch
Suitable for measuring the pressure of liquids, gases, or steam, this device compares the measured pressure value with a setpoint to trigger high- and low-limit alarms. The output signal is a passive dry-contact relay (SPDT). Common applications include: 1. Start/stop control for air compressors; 2. High- and low-pressure alarm systems in pipelines, as well as interlocked pump start/stop mechanisms. The pressure switch directly outputs a switching signal, enabling functionality equivalent to that achieved by combining a pressure transmitter with PLC/control instrumentation for switch-based control. With its simple design, it excels in on-site control scenarios within compact automation systems. This product features the following characteristics:
● Fully welded diaphragm, zero leakage
●Mechanical principle, no power supply required
● High-quality microswitch with minimal dead zone
● The process interface is versatile, and both flanges and threads can be customized.
● Switching difference is adjustable
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● Fully welded diaphragm, zero leakage
●Mechanical principle, no power supply required
● High-quality microswitch with minimal dead zone
● The process interface is versatile, and both flanges and threads can be customized.
● Switching difference is adjustable
Pressure measurement suitable for negative-pressure applications—by comparing the measured pressure value with a setpoint, high- and low-limit alarms can be implemented. The output signal is a passive dry-contact relay (SPDT). Common applications include:
1. Vacuum pump start/stop control;
2. Vacuum level monitoring and interlock systems for pipelines or containers.
The pressure switch directly outputs a switching signal, enabling functionality equivalent to that of a pressure transmitter combined with PLC/control instrumentation for switch-based control. With its simple design, it excels in local control scenarios within compact systems.
This product features the following key characteristics:
● Fully welded diaphragm, zero leakage
●Mechanical principle, no power required
● High-quality microswitch with minimal dead zone
● The process interface is versatile, and both flanges and threads can be customized.
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● Fully welded diaphragm, zero leakage
●Mechanical principle, no power required
● High-quality microswitch with minimal dead zone
● The process interface is versatile, and both flanges and threads can be customized.
Tianjin Ling Yu Technology Co., Ltd.
Operator:86-22-58554679
Fax: 022-58285528
Manager Ding: 86-18902041592
WhatsApp：8618902041592
Complaint Hotline:86-15822286986
Factory Address: No.5 Yingbin Road, Xiqing District, Tianjin
E-mail:sales@lingyukeji.com
Purchasing Department E-mail:lykj_tj@163.com
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