QJ57B-4 Multi-channel Resistance Monitor

1. Functionality:
Real-time, continuous, and precise multi-channel automatic measurement of resistance values.
Compatible with temperature sensors (Note: The original text may contain errors or incomplete information).
Supports USB data storage, with files in the U-disk being in Excel format.

2. Interfaces and Communications:
Equipped with an Ethernet port, providing a communication protocol.
Can work in coordination with fatigue testing machines, providing real-time feedback on monitoring results.

3. Measurement Parameters:
Measurement Range: 20mΩ, 200mΩ, 2Ω, 20Ω, 200Ω, 2KΩ, 20kΩ.
Range Selection: Manual range and automatic range.
Accuracy: ±0.05%.

4. Test Channels:
Number of Test Channels: 60 channels.

5. Alarm Function:
Rt Value Setting: Upper and lower limits can be set independently for 60 channels.
Alarm Condition: An alarm is triggered and a "shutdown" option is available when the Rt value exceeds the set upper or lower limit.