简单介绍：
DB502高压直流绝缘测试仪
详情介绍：
产品描述
• Measuring Speed :<10msec
• Accuracy 0.01% in the main range
• Resistance Range: 10mO to 1GO
• Hum Rejection Mode
• Absolute or Deviation Measurements
• Measuring cables: Guarded 4-terminal up to 1m
• 12 Programmable Limits
• LIM Outputs, IEEE & RS232c interfaces as standard
• Contact check function
• Compatible with DB501/R
