YOKOGAWA AQ7290 Series Optical Time Domain Reflectometer OTDR

2. Network and Remote Control

Wired network (/LAN option): Supports 10BASE-T/100BASE-TX Ethernet, realizes PC remote control through TCP/IP protocol, and can transmit measurement data to the server.

Wireless network: Connect to a wireless LAN adapter (recommended model required), supporting access point mode (device as hotspot) or site mode (connected to existing WiFi), suitable for remote operation in Ethernet free scenarios.

LTE Dongle: Inserting an LTE adapter can connect remote devices through mobile networks, suitable for outdoor environments without WiFi/Ethernet.

Web server: PC browser input device IP address, can be accessed through "control mode" (remote device operation) or "view mode" (only view screen and download files), without the need to install dedicated software.

Safety and Maintenance

1. Safety regulations

Laser safety: When the equipment emits high-power laser (OTDR port, VLS port), it is forbidden to directly look at the port or disconnect the fiber during operation. If the fiber is not connected, the port cover should be covered to avoid eye damage.

Wiring safety: Before measurement, confirm that the fiber optic connection is correct (voltage line connected to voltage terminal, current line connected to current terminal). Do not touch the terminals during high voltage/high current output, and regularly check whether the terminals are overheated or loose.

Fault handling: If there is smoke, odor, or abnormal noise, immediately cut off the power and disconnect the load; When the output is automatically turned off (such as overload protection), troubleshoot and then turn it back on.

2. Maintenance and repair

Filter cleaning: Check and clean the rear air inlet filter every 3 months. If it is dirty, clean it with neutral detergent and let it dry naturally. Blockage can cause the equipment to overheat; The filter screen is damaged and needs to be replaced by contacting a Yokogawa dealer.

Self check function: Automatically perform self check (check fan, voltage/current range, internal circuit) when turned on, or manually trigger. If the self check fails, an error code will be displayed (such as E.901 indicating fan fault).

Calibration and replacement: It is recommended to calibrate once a year to ensure accuracy. Cooling fans (3 years), filters (1 year), and LCDs (approximately 40000 hours) should be replaced according to the recommended cycle, and maintenance should be carried out by Yokogawa certified personnel.

Storage conditions: When not in use for a long time, it should be stored in an environment with a temperature of -20~60 ℃ and a humidity of 10%~90% (no condensation), avoiding direct sunlight, vibration, or corrosive gases.