LD-5740 series four-loop measurement display controller

Overview:

LD-5740 series four-loop measurement and display controller collects, displays, controls, remotely transmits, communicates, and prints various signals, such as temperature, pressure, liquid level, and speed, to form a digital acquisition system and control system.

★ Four-screen LED digital display.

★ It can detect 4 measurement signals at the same time, and the measurement signals of each input channel do not interfere with each other.

★ With 36 kinds of signal input functions, each channel can input different signal types at the same time; 0.2% level measurement accuracy.

★ It can take 8 channels of alarm output function and 4 channels of transmission output function.

★ Support RS485, RS232 serial interface, using standard MODBUS RTU communication protocol.

★ The meter can be equipped with RS232C printing function, with manual printing, timing printing, alarm printing functions.

★ With DC24V feed output, power distribution for field transmitter.

★ The input, output, power, and communication adopt photoelectric isolation technology.

★ Parameter setting password is locked, parameter setting is saved permanently after power off, and it has the function of parameter recovery system original setting.

Instrument wiring diagram

Note:

1. In the above wiring diagram, if different functions are marked in the same group of terminals, only one of them can be selected. If RS485 and RS232 are on the same group of terminals, only one can be selected.

2. The terminal for unified transmission output is on the No. 1 output terminal.