一、overview

This series of products adopt surface-mounted modular technology, which greatly improves the anti-interference ability of the instrument. It has functions such as display, control, transmission, communication, and can be made into input signals for resistance, voltage, and current displacement sensors. It is suitable for the display and control of displacement detection signals. It can be widely used in fields such as electric power, metallurgy, chemical industry, petrochemical, papermaking and printing, brewing, tobacco, and aerospace bases. The output circuits all adopt optical isolation and have strong anti-interference ability. It can have a serial communication interface and can perform two-way communication with various devices with serial interfaces to form a network control system. It has a variety of standard external dimensions and can be applied to various measurement and control occasions. The whole machine adopts a snap-in structure, and the installation is very convenient.

● Scope of application

Intelligent dual-loop digital display displacement control instrument is an intelligent and high-precision digital display displacement control measuring instrument. When connected with displacement sensors and transmitters, it can form displacement measurement and control systems of various measuring ranges and specifications.

● Function and features

2-channel analog input

Automatic calibration and manual calibration functions.

Multiple protection, isolation design, strong anti-interference ability, high reliability, and stable acquisition.

Good software platform with secondary development capabilities to meet special functions. Advanced modular structure, combined with powerful instrument chips, makes function combination and system upgrade very convenient.

二、Main technical indicators:

Basic error: 0.2% FS, 14-bit A/D converter (maximum 18-bit A/D converter, please specify when ordering). Input signal: 2 channels of resistance potentiometer.

Sampling period: 0.1S (10-200 times/second, optional for users). Display: Double-row four-digit LED digital tube display.

Alarm output: The instrument can have multiple relay outputs. The relay contact capacity is AC220V/5A or AC220V/1A. It can have up to 16 relays. Upper limit and lower limit control can be selected. The control set value and return difference value can be freely set within the full range.

Transmitter output: 4～20mA, 0～10/20mA (load resistance ≤250 Ω. If the load is too large, it needs to be noted).

1-5V, 0-5V, 0-10V (load resistance ≥200KΩ). Adopting 12-bit digital D/A chip, isolated output.

Communication output: Isolated communication interface RS485/RS232. Baud rate 1200～9600bps.

Print output: RS232 interface, TTL interface.

Feed output: DC24V/30mA, DC12V/30mA

Temperature compensation: 0-50, automatic cold junction temperature compensation. Error: ±1℃.

Power supply: switching power supply 85～265VAC or DC24V or DC12V

Power consumption: 4W

Environmental temperature: (-20～70)℃ (After starting up and running for 30 minutes at normal temperature, it can gradually withstand the extreme temperature).   (0～50)℃ (Thermocouple signal input)

Relative humidity: ≤85%, no condensation. Avoid using in corrosive and flammable and explosive gases.

Panel sizes: 160mm×80mm, 96mm×96mm, 96mm×48mm, 72mm×72mm, 48mm×48mm

三、Terminal wiring

A、A/D Instrument with specification of 160×80×125 in size.

B Instrument with specification of 96×96×110 in size.

C Instrument with specifications of 96×48×110 in size.