长沙LPS-N6 Smart Pressure Switch
● Multiple-channel digital output
● Display pressure value directly on-site
● Resistant to Pulsating Pressure Shock
● Set action values with buttons
Category:
Product Description
Product Overview Product overview
The LPS-N6 series electronic pressure switch is an axial-type pressure switch featuring a display panel with an angled orientation, allowing for vertical or horizontal installation while ensuring the display remains visible. Functionally, it can accurately measure pressure in field pipelines and pressure vessels, offering local display, switch-action output, and remote signal transmission—making it ideal for downstream control and data acquisition. The local switch output comes as a dry-contact SPDT or PNP/NPN switching signal, while the analog output supports a 4-20mA current signal. Compared to mechanical pressure switches, this model provides exceptionally convenient adjustment of setpoints. Additionally, it offers flexible alarm configurations, including single-point alarms, upper/lower limit alarms within the specified range, and alarms triggered when the pressure falls outside the defined limits. This versatile device is widely used in industries such as petroleum, chemical processing, metallurgy, water treatment, hydraulic systems, and lubrication equipment—anywhere precise pressure control is required.
Performance Metrics TECHNICAL PARAMETERS
Power supply: 18–32 VDC, typical value: 24 VDC
Measurement media: oil, water, gas, and other media compatible with stainless steel;
Measurement ranges: Negative pressure type: -0.1 to 0 MPa; Differential pressure type: 0–2 kPa; Positive pressure type: 0–60 MPa; (Custom options available for higher requirements)
Measurement accuracy: 0.25%FS; 0.5%FS; (Higher accuracy available upon request)
Overload Capacity: 2x Full-Scale Pressure:
Analog output: 4-20mA;
Switch outputs: 2-channel PNP/NPN switches;
Contact capacity: 250VAC, 3A / 24VDC 1.5A;
Load capability: Current type ≤ 500Ω, voltage type ≥ 250 kΩ;
Threaded connection: M20×1.5 (customizable based on site requirements);
Electrical interface: M12×1 connector;
Temperature Drift Coefficient: Within the specified operating temperature range, for every 10°C change in ambient temperature, the output variation is ≤ ±0.05% of the full scale; annual drift < ±0.3%.
Long-term stability: ±0.1%FS/year;
Housing material: Stainless Steel 304SS
Housing Protection: IP65
Explosion-proof rating: Exd IIC T6Gb;
Operating temperature: -20～85°C
Storage temperature: -40～100°C
Relative humidity: 0–95% RH
External dimensions APPEARANCE OF SIZE
Installation Requirements INSTALLATION
1. The pressure transmitter can be directly installed on the pipe component to be measured. For ease of installation and maintenance, it is recommended to install a shut-off valve between the pipe component and the pressure transmitter. In cases involving vibration or surge
Striking the larger environment allows for mechanical decoupling by installing a hose at the pressure transmitter connector.
2. A sealing ring should be installed between the pressure transmitter connector and the pipe fitting or shut-off valve. For flush-head pressure transmitters, the internal thread depth of the pipe fitting or shut-off valve must exceed 25 mm.
Generally, the pressure transmitter should be installed vertically, facing upward relative to the horizontal plane. During installation, use a wrench to tighten the transmitter by turning the hexagonal nut at its base—avoid directly twisting the upper part of the transmitter.
Note:
1. Do not use sharp objects or hard materials to poke the pressure port, as this may damage the sensor’s pressure diaphragm. Additionally, since the pressure diaphragm is permanently welded to the housing, the device will become irreparable.
Furthermore, intentionally pressing the diaphragm, as well as product quality issues caused by abnormal usage conditions such as media containing particles, static overloads, or dynamic pressure shocks, are explicitly excluded from our warranty coverage. Therefore, users must take extra care to protect the diaphragm during both installation and operation.
2. For areas prone to frequent lightning strikes, it is recommended to install lightning protection devices along the lines.
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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