YK_VC-120-002A High-precision DC Voltmeter and Ammeter Double Display 120V 485Modbus

YK_VC-120-002A High-precision DC Voltmeter and Ammeter Double Display 120V 485Modbus

Description:
- YK_VC-120-X is a meter with integrated DC voltage measurement and DC current measurement. NTC thermistor can be connected for temperature measurement, providing Chinese and English display switching, key prompt tone, and factory professional calibration. High measurement accuracy and wide range. With anti-reverse connection protection, the module will not work when the power supply is connected reversely, but it will not damage the circuit. LCD can measure and display current and voltage data at the same time. With alarm relay output and Modbus RTU protocol 485 communication interface, the module measurement data can be read back by other equipment for large-scale integration and industrial application.

Features:
- 5-bit voltage + 5-bit current
- Upper and lower limit alarm
- Relay alarm and buzzer alarm
- 485 interface/ModBusRTU Protocol
- NTC resistance temperature measurement
- Chinese and English dual interface

Parameter:
- Type: voltmeter and ammeter
- Power supply voltage: 6-28V with anti-reverse connection protection
- Static consumption: 70mA (TYP)
- Voltage measurement accuracy: 0.04%
- Current measurement accuracy: 0.04% (at 100mA, 1A, 2A)
  0.08% (at 5A)
- Communication: Modbus (RTU Mode)
- Communication power level: 485
- Serial setting: Baud rate9600, 8 data bits, without check, 1 stop bit
- Alarm mode: relay plus buzzer, current and voltage upper and lower limit alarm
- Display mode: LCD (Chinese English dual interface)
- Display rate: 2 times per second
- Size: 75 x 83.5 x 75 (L x W x H mm)
- Note: Maximum error=range x measurement accuracy

Alarm description:
- E1_HV: High Voltage
- E2_LV: Low Voltage
- E3_HC: High Current
- E4_LC: Low Current
- E5_HV & HC: High Voltage and High Current
- E6_LV & LC: Low Voltage and Low Current
- E7_HV & LC: High Voltage and Low Current
- E8_LV & HC: Low Voltage and High Current
- E92: Alarm within threshold in case of polarity reversal
- Note:
  The code is displayed in the upper right corner of the screen.
  Alarm polarity means that the regular measured value gives an alarm beyond two thresholds, while the converse means that the measured value gives an alarm within two thresholds. The default polarity is positive.

Package Included:
- 1 x YK_VC-120-002A voltage and ammeter
- 1 x NTC thermistor
- 1 x Manual

Note:
- Please carefully read the wiring instructions and strictly follow the wiring instructions.
- The voltage and current to be detected input by the module shall be AC and shall not exceed the specified value acquisition range.
- Avoid high temperature and humid environment. Protect the interface and circuit from moisture and oxidation.
- Avoid direct sunlight on the LCD screen for a long time to avoid aging.
- The product has been calibrated before shipment, so it is generally unnecessary to calibrate or zero the machine again.