1、 Scope of application
The 89T2 frequency meter is divided into two types: magneto electric and electromagnetic. It is suitable for installation on display panels and large switch boards of various control systems and distribution systems to indicate relevant electrical parameters, such as AC/DC current, voltage, power factor, power, synchronization value, frequency, deployment voltage, and overload current. The product performance meets the GB7676-98 standard.
2、 Main technical parameters
Accuracy levels: 1.5 and 2.5; Usage conditions: -20~+50 ℃; Relative humidity: ≤ 85%; Voltage resistance effect: ± 15% change in self frequency constant value, causing an indication error not exceeding the basic error; Mechanical performance: able to withstand acceleration up to 30 meters per second, impact frequency of 80-120 times per minute, and two-hour transportation shock; Working position: Used in a vertical direction