Alutal Measure & Trust

BJJY-?-B Overfill & Grounding Monitor

This system is used for overfill and grounding protection during a Top-Loading for truck or rail loading in petrochemical applications.

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The product

  • The system automatically and continuously monitor overfill sensors and grounding status during the loading operation;
  • Light indication and alarms provide visual and audible monitor for the overfill status during loading operation;
  • It will send status signal to loading controller or other automation system, loading shut down immediately shut down whenever overfill or grounding is monitored;
  • Alarm will remind the operator to put clamp back to the seat after loading is finished to make assurance for the safety;
  • Optional permissive and non permissive bypass conditions by the button on the truck plug.

Technical Specification:

Item Parameter
Overfill probe connection
Connections availible for API standards probe (including 2-wire and 5 wire)
Static Detection One way static grounding status detection
Display 2LED lights indicate for static adn overfill
Alarm Output 2 on/off alarming outputs, optional for normal open and normal close?Relay passive contact?
Signal output capacity? 0.4A 125V/AC, 2A 30V/DC
Voice Alert >90dB
Voltage 12V/DC, 24V/DC, 220V/AC
Power < 2W
Sense Resistor < 60 ohms
Alarm Response Time Alarm for grounding < 1 seg, Alarm for overfill < 0.4 seg
Ambient Temp. -40ºC ~ +80ºC
Electrical Entry 4-G3/4, 2-G1/2
Ex Rating Ex d ia [ia Ga] II C t6 Gb
Dimension 417 x 217 x 103 (Skid)


  • Built to function with all probes designed to the API standard, is compatible with all commonly used overfill protection and grounding systems.
  • Built-in lightning surge protection; 
  • Independent alarming for the electrostatic detection and the overfill protection;
  • Available for operation as an independent system or integration with your existing loading system; 
  • Optional permissive and non permissive bypass consitions by the button on the truck plug;
  • Supports 12 of 5-wire probes;
  • Easy installation for modular skid design

Installation Diagram:
During loading process, when the liquid level reaches the safe height where the overfill probe is located, the overfill signal is send to monitor and alarm will be activated

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ISO 9001

Certificada desde 2006


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