Digital Terminal for Oil Level Gauge RS485 4-20mA Smart Substation Monitoring

Digital terminal for oil level gauge
 

Product Overview
 
The digital terminal is a new-generation intelligent device developed in compliance with the latest requirements of State Grid Corporation of China for digital remote-transmission products applied in smart substations. Operating on the principle of receiving 4-20mA signals from remote-transmission oil level gauges or other liquid level and displacement sensors, it enables real-time monitoring. It conducts two-way communication with monitoring terminals via RS485 wired transmission, and is equipped with local data storage, fault indication and verification functions.
 

Product Features
 

(1) Features strong anti-interference performance, high adaptability to diverse working environments, superior reliability and measurement precision.
(2) Supports dual output modes of RS485 and 4-20mA.
(3) Allows users to configure upper/lower limit alarm thresholds and critical alarm thresholds to realize dual protection; it can also output double-high and double-low alarm contacts.
(4) Automatically detects and archives oil level data, with a storage capacity of no less than 20,000 records, which can be retrieved anytime via USB interface.
(5) Equipped with on-site indication for communication anomalies, self-check failures and other malfunctions.
(6) Supports calibration without disassembly.
(7) Adopts low-temperature-resistant LCD screen for clear visual display both in daytime and nighttime.
(8) Adopts modular design, compatible with various liquid level and displacement sensors. It can serve as an alternative to similar wired acquisition systems with easy installation and maintenance.