Weighing instrument LX-162

LX-162 type instrument is a high-performance belt scale control instrument developed and designed with reference to imported similar instruments. The instrument adopts imported 32-bit industrial CPU, 10 × 5 The man-machine interface with Chinese character LCD display and digital and functional compound key operation has multiple groups of mutually isolated input and output interfaces, and each interface has multiple anti-interference measures. In terms of functions, this instrument is characterized by practicality, intelligence, multifunction and ease of use, and is a kind of instrument with high cost performance among similar domestic products. Suitable for the control of various continuous and intermittent batching scales

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Product Details

Functional features

1. Adopt 32-bit ARM CPU with high reliability and fast running speed.

2. The intelligent control algorithm and intelligent function processing greatly simplify the parameter setting, making the instrument operation very simple.

3. The standard modbus communication interface is convenient for connection with other systems.

4. Multi key operation, convenient and fast.

5. The specially designed power circuit not only has high reliability, but also has a wider voltage adaptation range. The utility model overcomes the disadvantage that the common switching power supply is only suitable for low voltage operation, but not suitable for high voltage power supply operation higher than 260V.

6. Double sets of data storage circuits, all parameters are backed up and stored, and can be automatically recovered once the data is disturbed. At the same time, the instrument also has the functions of restoring factory settings, restoring backup, etc.

7. The ADC circuit with superior performance is adopted, which is not only fast and accurate, but also avoids the disadvantage that common programmable ADC circuits can not operate normally due to the loss of interference configuration files.

8. The pulse shaping circuit is added to the speed measurement input terminal to make the speed measurement result more accurate and stable.

9. More four functional modes are set for the instrument: quantitative control mode, quantitative control mode with automatic reset after startup, metering mode and automatic reset metering mode.

10. Flexible control mode. The instrument can set the flow rate and start the instrument through keyboard, communication or interface. In addition, the metering mode can be started at an optional speed.

11. In the way of punched plate flowmeter, the instrument has 4-point linearization processing.

12. It has volume operation mode. When the speed sensor or load sensor fails, the instrument can refer to the empirical data under normal conditions for open-loop control.

13. Manual operation function. This function can facilitate system testing.

14. The instrument has parameter setting function, interface test function, calibration function (zero calibration, chain code calibration and physical calibration), parameter backup and recovery function, etc. It supports keyboard to modify zero point and coefficient directly.

15. It has a real-time clock and can perform shift, daily and monthly accumulation processing. It can query and print the cumulative and total cumulative of each shift in a month.

16. Batch control function can be used in batching mode. When the feeding amount reaches the set value, the machine will stop automatically.

17. The standard RS485 communication interface implements the modbus RTU communication protocol, which can easily communicate with the configuration software without the need to customize a special driver. 18. Dual language display is added in V2.0 version, which can be displayed in Chinese and English through parameter selection.


technical parameter

1. Comprehensive metering accuracy of instrument: 0.03%

2. Analog input channel. 2-channel 16 bit ADC, conversion speed is 240 times/s, and active filter with cut-off frequency of 2-5Hz is adopted. Channel 1 is the input channel of the load sensor, with the sensor supply voltage of 5 or 10V and 6-wire or 4-wire wiring. Channel 2 is an external flow setting channel, which can input 0-20mA current signal with input impedance of 120 Ω.

3. Analog output channel. Three 16 bit analog output channels, with output signal of 0 - 20mA and load driving capacity of 500 Ω. Analog output signal is used for main control output, instantaneous flow output and auxiliary control output (dual speed regulation control).

4. Switching value output. Six channels of switching value output, using high-power triode OC output, can drive 100V/1A DC load. Switching value output includes startup, readiness, operation, cumulative pulse, alarm output, volume output, etc.

5. Switch input. 4 channels of switching value input channels, which are valid by pull-down input. Passive point of relay and input equipment of OC output mode can be used. Switch input can be used for speed measurement pulse input, startup, alarm reset, etc.

6. Flow unit: t/h, kg/h, or kg/m

7. Flow display range: 0-99999

8. Weight unit: t, kg

9. Cumulative weight display range 0 - 99999999910. Working power supply: 160 - 300V 50Hz, 10W

11. Working environment: - 10 - 50 ° C, 10 - 95% RH (no condensation)


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