Page 180 - Twomaster_General_Catalogue_2024_2025

General Catalouge - 2024 TWOMASTER STRING MONITORING

Product Parameter

CURRENT MEASUREMENT
Maximum Channels
4 Multiple, Maximum 32 Channels
Input Current Range -20A~+20A & -30A~+30A & -40A~+40A & -60A~+60A
Rated Current -10A~+10A
Zero Drift ±0.1A
Temperature Drift ±0.005A/
Accuracy 1%FS
VOLTAGE MEASUREMENT
Input Voltage Range 400~+1700V
Accuracy Class 1, 1%
Resolution 1V
TEMPERATURE MEASUREMENT
Number of Temperature Sensor 2
Sensor Type NTC
Measurement Range -40~+125
Accuracy ±2
Resolution 0.1
DIGITAL STATUS MONITORING
Number of Digital Status 4
Type Dry Contact
Input Voltage DC5V
LOCAL SCREENING
Display LCD, Histogram Display
Working Status Instructions 2 LEDs, Indicating Power & Communication Status
LOCAL OPERATION
Operating Content Operating Status Display and Parameter Setting
Local Operation Key 4nos
RS-485 COMMUNICATION
Communication Protocol Modbus-RTU
Communication Baud Rate 2400/4800/9600/19200/38400 bps
Parity 8N1, 8O1, 8E1
MAIN UNIT POWER SUPPLY PARAMETERS
Input Voltage 400~1700VDC
Maximum Input Current 0.1A
ENVIRONMENT
Operating Temperature -40 +85
Storage Temperature -40 +85
Operating Humidity 095%
EMC
Surge Immunity GB/T 17626.5-2008 class 4, common mode 4KV, d ierence mode 2KV
Electrical Fast Transient (EFT) Disturbance GB/T 17626.4-2008 class 4, common mode 4KV, d ierence mode 2KV
Electrostatic Discharge Test Immunity GB/T 17626.2-2006 class 3 , contact discharge 8KV, air discharge 15KV
Electromagnetic Radiation Immunity GB7251.1-2005, GB/T 17626.3-2006, 10V/m
Power Frequency Magnetic Field Immunity GB/T 17626.8-2006 class 3

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