型號CE-IT絕緣裝置測試儀是一種全自動，高敏感的設備，用于測試埋地管道絕緣和隔離管道過路套管，以確定其有效性。CE-IT有一個液晶讀數(shù)顯示被測絕緣體英語的條件。聽到聲音信號時，CE-IT運行，脈動音測試周期完成時的速度增加。  
 

工作原理：

The actual resistance of a buried insulator depends on many factors, such as the environment in which the joint is located. In a very low resistivity environment, the normal resistance measurement for an insulating joint may be as low as 0.5 ohm. 埋地絕緣裝置的真實電阻取決于許多因素，諸如絕緣裝置所處的環(huán)境。在一個非常低的電阻率的環(huán)境中，一個絕緣接頭的正常電阻測量值可能是低至0.5歐姆。

Checking the insulating joint of a buried pipeline for current leakage is often a more reliable test than an internal resistance test. 通過檢測埋地管道絕緣裝置的漏電情況要比直接測量內部電阻要更為可靠。  漏電流的絕緣接頭比內部電阻的測試通常是一個更可靠的測試。