The KY-120F series products connect the electrical associated equipment between the industrial field instruments and the control room.

It effectively solves the interference problem of input-output-control system through the reliable isolation of industrial automation control system, and ensures the stable and reliable operation of the system. This series adopts the international leading PCB transformer isolation technology, combined with advanced and efficient digital circuits, which greatly improves the strength of product isolation, and further improves the anti-interference resistance of the detection and control loop. At the same time, the current, voltage, resistance, electric couple, frequency and other signals are converted and distributed, to meet the requirements of the industrial automation control system to a greater extent.

Performance parameters:

1. Power supply voltage: 20~30VDC

2.      Load capacity: ≤ 350 Ω (factory default, load specified)

3.      Response time: ≤ 10ms

4. Precision: 0.1%F.S.

5. Power consumption: 1.0W

6. Pressure resistance between input-output-power terminals: 2,500 VAC

7. Temperature Drift: 0.01%FS/1℃

8. Permitted atmospheric pressure during work: 80~106KPa

9. Inspection and calibration ambient temperature: 25 ± 2℃ 

10.  Use cable: 0.5~ 2.5 (mm²) Cable 

11.  Overall dimension: 16 × 116 × 110 (mm)

12.    quick wiring without screw fastening and terminals can be plugged

Measurement indicators:

Operating ambient temperature: -20℃ ~ + 60℃ Storage ambient temperature: -40℃ ~ + 80℃

Relative humidity allowed during work: 5~95%RH (without condensation)

Circuit schematic diagram:

Application industry:

It is widely applicable to industrial site PLC control and frequency converter control; intelligent building control, security engineering and other application systems, ground interference suppression, medical, industrial control product development; automatic selection control of industrial boiler furnace temperature; DA converter, industrial switchgear equipment control system; equipment operation commissioning and control; switching volume signal transmission, isolation, long-line transmission.

Product characteristics:

l All internal circuits are modulatively modular;

l Instrument shape card mounted structure, flame-resistant material casing, can be densely installed intensively, convenient for combination and disassembly;

l Push-in terminal, can be charged dial;

l Function: power distribution to field instruments; signal isolation and transmission; signal conversion; signal multiplex distribution; and alarm setting;

l Number of channels: single channel; double channel; one in two out; one in three out; one in four out;

l Power supply mode: independent DC power supply; second-line power supply;

l Matching the signal and field instruments;

l Switch and proximity switch input;

l Drive the power output of field valves and indicator lights and other field equipment;

l Current input of second-line and third-line production transmitter;

l DC current / voltage signal input and output;

l The thermocouple, thermal resistance temperature signal input.