Overview
This series of pressure transmission controllers is an intelligent digital pressure measurement and control product that integrates pressure measurement, display, output, and control. This product is a fully electronic structure, with a front end equipped with an isolation membrane filled oil pressure resistance pressure sensor. It is converted by high-precision A/D, processed by a microprocessor, displayed on site, and outputs one analog signal and five switching signals.
This pressure controller is flexible to use, easy to operate, easy to debug, and safe and reliable. Widely used in industries such as hydropower, tap water, petroleum, chemical, mechanical, hydraulic, etc., for on-site measurement, display, and control of fluid medium pressure
Characteristics
·Provide constant voltage and current excitation, which can be connected to various types of sensors (diffused silicon, ceramic capacitors, ceramic piezoresistive...)
·Output multiple standard analog signals (0/4-10/20mADC 0/1-5/10VDC)
·Can display four pressure values, four status parameters, and output standard analog signals
·Button calibration and on-site setting of various parameters for easy operation
·Multiple power supply options available (24VDC, 220VAC, 220VDC)
·1 to ± 5 relay outputs
·Ultra small temperature drift
·Applicable Φ 100 standard pressure gauge appearance

3、 Technical parameters

4、 Overall dimensions
5、 Installation
5.1 Mechanical connection:
This product can be directly installed on the hydraulic pipeline through a pressure pipe joint (M20 * 1.5) (other sizes of joints can be specified when ordering). In critical applications such as severe vibration or impact, pressure pipe joints can be mechanically decoupled through micro hoses.
Note: When the range is less than 100KPa, it must be installed vertically
5.2 Electrical connections

To prevent the impact of electromagnetic interference, the following precautions should be taken:
The line connection should be as short as possible, using shielded wires
Try to avoid directly approaching the wiring of user devices or electrical and electronic devices that cause interference as much as possible
If micro hoses are used for installation, the casing must be separately grounded
6、 Setting functions
6.1 Output
Example: To set relay 1 as the upper limit alarm output (normally open function) at 4Mpa for suction and below 3.95Mpa for disconnection,; Relay 2 has a lower limit alarm output (normally closed function) that opens at 10Mpa and absorbs below 9.95Mpa:
Enter menu: Settings
AL1H=4.00 AL1L=3.95
AL2H=9.95 AL2L=10.00
Press the "SET" button
● Display "LOCK" (prompt for password input)
Press the ▲ or ▼ keys to enter the password "1",
Press the "SET" button to confirm
Press the ▲ or ▼ keys to scroll up or down for menu selection (AL1H, AL1L, AL2H, AL2L,,,,,)
Press the "SET" button to enter the selected menu.
Press the ▲ or ▼ keys to change the settings
Press the "SET" key to confirm, and if necessary, use the ▲ or ▼ keys to select other menus for modification.
After the modification is completed, press the "SET" button to confirm saving and exit