光纤识别仪/Optical fiber Identifier:
广泛用于光缆施工及维护。利用宏弯技术对线路做测试，可以测量信号方向及功率，避免误操作导致线路中断。
Widely used in optical cable construction and maintenance. The use of macro bending technology To do non-destructive
testing. can measure the signal direction and power, to avoid misoperation resulting in interrupted lines.
宏弯测量，宏弯是利用光纤弯曲时泄漏出微弱的光信号,通过判断泄漏的方向和强度来检测光信号的方向和强度。不损伤光纤,不中断通信,并可以直接检测0.25mm裸光纤, 0.9mm紧套管光纤和2.5mm跳线。
Macro bending measurement, macro bends are the use of fiber-optic bending leak out when the weak optical signal, optical signal to detect the direction and intensity. Does not damage optical fiber, without interrupting communications, and direct detection of 25mm bare fiber, 0.9mm and 2.5mm fiber casing tight jumper.
音频识别，光纤识别仪可以检测光信号中加载的固定音频信号,270Hz,1KHz和2KHz，用以识别特定光纤,可以快速的找到需要的光纤。
Tone identification, Optical Fiber Identifier can detect optical signals in the tone signal
a fixed load, 270Hz, 1KHz and 2KHz, to identify a specific optical fiber, can quickly find
the necessary fiber.
低电量监测功能，光电话自带电量监测，当电池电量不足时会发出指示，来提醒用户更换电
池，以免使用中断。
Low battery monitoring function, when battery power is insufficient to issue instructions
to remind users to change batteries.
型号 | AFI400 | AFI420-(S-L) | |
波长响应范围/Wave respond | 750nm-1700nm | ||
损耗/P through insertion loss 0. 250um裸光纤/250um Optical fiber 1. 900um紧套管光纤/900um Optical fiber 2. 3mm直径尾纤/3mm Optical fiber | 1. 1.0dB 2. 1.0dB 3. 2.0dB | ||
适用光纤/Application of optical fiber | <3mm各类光纤/ <3mm optical fiber | ||
识别调制信号 | 270Hz/1KHz/2KHz | ||
光纤方向识别/Identification of modulated signals | 含此功能/Yes | ||
功率测量/Power Measurement | 含此功能/Yes | ||
显示方式/Display | LED数字显示/LED segment | ||
提示音/Tone | 含此功能/Yes | ||
低电量监测/Low power monitoring | 含此功能/Yes | ||
探测器类型/Detector te | 1mm InGaAs | ||
小探测功率/Minimum detection power 数据测试条件/Test conditions 1. 250um裸光纤/250um Optical fiber 2. 900um紧套管光纤/900um Optical fiber 3. 3mm直径尾纤/3mm Optical fiber 数据测试条件/Test conditions 4. 250um裸光纤/250um Optical fiber 5. 900um紧套管光纤/900um Optical fiber 6. 3mm直径尾纤/3mm Optical fiber | 1550nm 1. -35dBm 2. -35dBm 3. -30dBm 1310nm 4. -30dBm 5. -30dBm 6. -27dBm | ||
附带可视故障探测仪 | 无此功能/Without | 含此功能/Yes | |
中心波长 | 无此功能/Without | 650nm | |
输出功率 | 无此功能/Without | >1mW or >10mW | |
适用电池/Power supply | 5#碱性电池/Size AA Alkaline cell | ||
电池寿命/Battery life | >60H | ||
自动关机/Auto OFF | 含此功能/Yes | ||
工作温度/Operate temp | 0~+50 C | ||
储存温度/Store temp | -40~+70 C | ||
工作海拔 | <2500m | ||
重量（g） | 300g | ||
外形尺寸（mm） | 220mm*42mm*32mm | ||
使用康宁标准光纤，250um裸光纤取红、黄、橙、蓝、绿色及棕色涂敷层裸光纤，参数取各种颜色涂敷层的平均值，900um和3mm取白色和黄色标准
跳线。如果裸光纤涂敷层为黑色，光衰减很大或不能测量。
AFI420-S输出功率>1mW线路衰减小时可在5KM处看见红色激光,AFI420-L输出功率>10mW线路衰减小时可在10KM处看见红色激光。
