9907-147 3个lcd | 2行16个字符

Description

9907-147 3个lcd | 2行16个字符

产品描述
型号9907-147使用磁性拾音器来监测底漆速度的超速条件。本系列设备易受电磁干扰、振动、潮湿和工作温度超出-25 ~ +60°C(-13 ~ +140°F)的影响。protect超速保护装置应安装在通风良好、有维修空间、远离阳光直射、远离大电流或高压设备的地方。

该脱电跳闸系统具有100 Hz至32 kHz的速度感应频率范围和±(0.05% x跳闸点在Hz +2 Hz)精度等级。超速检测功能由三个独立的速度传感单元执行，它们独立地监测速度并执行速度计算。这三个单元是三选二的配置，所以只有当至少两个单元检测到超速情况时，原动机跳闸继电器才会发生。

ProTech超速保护型号9907-147的触发点频率范围为250hz至25khz。跳闸设定点分别为每个单元编程(为了精确输出，它们必须编程相同)，使用操作界面。每个速度传感单元有一个接口。每一个都有:

两行16字符液晶显示
触控板
电位计
领导的指标
报警输出
编程和测试功能被锁定，以防止未经授权的更改。一键开关之间移动监控模式和程序模式连接到所有三个单位。

9907-147

9907-147  3个lcd | 2行16个字符

Product Description
Model 9907-147 uses magnetic pickups to monitor primer speed for overspeed conditions.  Devices in this series are susceptible to electromagnetic interference, vibration, moisture, and temperatures outside of the operating temp range of –25 to +60 °C (–13 to +140 °F). ProTech overspeed protection models should be installed in locations that allow adequate ventilation for cooling, space for servicing, and away from direct sunlight, and away from high-current or high-voltage devices.

This de-energize-to-trip system has a 100 Hz to 32 kHz speed-sensing frequency range and a ±(0.05% x Trip Point in Hz +2 Hz) accuracy rating. Overspeed detection functions are carried out by three individual speed-sensing units, which act independently to monitor speed and perform speed calculations. The three units are in a two-out-of-three vote configuration, so a prime mover trip relay will only occur if overspeed conditions are detected by at least two of the units.

The trip-point frequency range of ProTech overspeed protection model 9907-147 is 250 Hz to 25 kHz. Trip set points are programmed for each of the units separately (they must be programmed identically for accurate outputs) using the operator interfaces. There is one interface per speed-sensing unit. Each one has:

Two-line by 16-character LCD display
Touchpad
Potentiometer
LED indicators
Alarm output
Programming and testing functions are locked to prevent unauthorized changes. One key switch to move between MONITOR mode and PROGRAM mode is connected to all three units.