Pressure Controller LN20-300
High Precision Pressure Controller (Low Range)
Product Introduction
Equipped with high-performance sensors and a digital circuit board, the LN20 series of pressure controllers provides higher accuracy and performance pressure control, and can accurately control the entire process by adjusting the setpoint, and supports the Profibus protocol in addition to the standard Modbus protocol.
Product Applications
Applications: semiconductor production, scientific research experiments, biomedicine, energy and chemical industry, leak testing, fuel cells, vacuum coating and process control, etc.
Product Overview
The LN20 series pressure controller/gauge is a straight-through design with a measurement range from 100KPa to 10MPA (absolute and gauge). Differential pressure transmitters are also available. This series of instruments has high accuracy and good repeatability, and is divided into two types: front pressure control and back pressure control.
The LN20 series comes standard with a pressure sensor and a digital circuit board that provides high accuracy, fast stability, and reliable pressure control, and this PC digital board has all the functions needed to control the pressure. In addition to the standard RS485 output signal, the LN20 also provides analog input/output signals, which can be adjusted to precisely control the entire process. The LN20 series pressure controller can be equipped with an integrated control valve or a split control valve. It is a proportional solenoid control valve with ultra-fast and smooth control.
Product parameters
| Technical parameters | Accuracy (including linearity and hysteresis) | ±0.5%F.S | |
| Pressure to range ratio | manometer | 1:50 | |
| Pressure controllers | 1:20 | ||
| repeatability | ≤0.1% | ||
| Sensor response time | 0.2s | ||
| Control stability | ≤±0.05% F.S (Measurement condition: 1 L/min N2) | ||
| Operating temperature | -10~+70 | ||
| Temperature sensitivity | 0.1%FS/ | ||
| Leakage rate | 1×10-9 Pa m³/S | ||
| Bearing influence(90° variation) | <0.03 KPa (Absolute/Gauge Sensor) | ||
| <0.6 KPa (differential pressure sensor) | |||
| Warm-up time | Negligible | ||
| Mechanical components | Material | stainless steel | |
| Process connections | G3/8" | ||
| Sealing material | Viton/Nitrile/Neoprene/Others | ||
| Ingress Protection (Housing) | IP40 | ||
| Electrical characteristics | power supply | 15~24Vdc | |
| Digital output | RS485/RS232, profibus protocol | ||
| Electrical connections | DB9 | ||
LN20-300 Pressure Controller (Low Range: ≤300KPa)
Product selection
| Serial number | LN20 |
| Product type | [C] Pressure controller [M] Manometer |
| Type of pressure | [A] absolute pressure [G] gauge pressure |
| Withstand voltage range | [M] 3MPa [Z] 10MPa (manometer only) |
| On-site display of the condition | [N] Without LCD [X] With LCD display |
| Pressure range | [100K] 100KPa [300K] 300KPa |
| The medium to be measured | See the density reference table for details |
| Flow input signal | [A1] 0~5VDC [A2] 4~20mA [A3] 1~5VDC |
| Output signal | [B1] 0~5VDC [B2] 4~20mA [B3] 1~5VDC |
| Supply voltage | [5] ±15VDC [4] 24VDC |
| Methods of Communication | [8] RS485 [2]RS232 [P] Profibus |
| Sealing material | [V] fluoroelastomer [T] Nitrile rubber [N] neoprene [Y] others |
| Use connectors | [A] φ3 [B] φ6 [F] 1/8" [G] 1/4" [Y] Others Contact the manufacturer |
| Example of model selection | LN20 M A M N 100K 007 A1 B1 5 8 V F |
