Low power differential pressure transmitter

Low power differential pressure transmitter

1. Overview

The pressure sensitive core of lc-818 series pressure transmitter adopts high-performance silicon piezoresistive pressure oil filled core. The internal ASIC converts the sensor millivolt signal into standard voltage, current or frequency signal, which can be directly connected with computer interface card, control instrument, intelligent instrument or PLC. The current output mode can be used for distance transmission. Lc-818 series has small volume, light weight, all stainless steel sealing structure, which can work in corrosive environment. The product is easy to install and has the performance of anti vibration and anti impact. It is widely used in process control, aviation, aerospace, automobile, medical equipment, HVAC and other fields.     

2. Technical index

Power supply: 24 VDC;

Output: 4 ~ 20mA;

Accuracy: 0.25% F.S;

3. Electrical connection

4.2 electrical connection of direct lead structure:

Current: brown wire: 24 VDC;

Blue line: current output.

Voltage: red line: 9VDC;

Blue line: power supply -;

Yellow line: voltage output +.

4. Installation method

(1) select the place easy to operate and maintain for installation;

(2) it should be installed as far away from the vibration source as possible;

(3) keep away from heat sources as far as possible

(4) it is suggested to connect the measuring pipe with valve;

(5) when installing, clamp it on the six sides of the transmitter with a wrench;

(6) during operation, the joint between Hirschmann joint and shell cannot rotate.

5. Precautions for use

(1) when handling and installing the transmitter, care should be taken to prevent the components from being damaged by impact, which will affect the performance of the circuit.

(2) there is an isolation diaphragm in the pressure inlet of the transmitter. Do not touch it artificially with foreign matters.

(3) please strictly follow the wiring method for electrical connection. Wrong wiring will cause damage to the amplifier circuit.

(4) please contact our company in case of any problem during the installation and use of the product. When the product is abnormal, please do not open it for repair without authorization, and contact the manufacturer in time.