Overview:

● Material: Cast steel housing with 9 mm tempered glass observation window

● Explosion-Proof Rating: Exdb I Mb

● Applications: Monitoring and protection of battery locomotives and other underground battery packs in coal mines

● Standards: Q/YZY006 YBZ Series Explosion-Proof Battery Monitoring Instrument

Key Technical Specifications:

● Accuracy Class:

   o Voltage Monitoring: 0.5 class

   o Capacity Monitoring: 5 class

● Operating Temperature: -20℃ ~ +40℃

● Relative Humidity: ≤95% (+25℃)

● Protection Rating: IP54 (GB/T4208 compliant)

● Vibration Resistance: ≤50 m/s²

● Power Supply Voltage: 27–240 V DC

● Operating Current: ≤80 mA

● Voltage Monitoring Range: 27–240 V DC

● Battery Electrode-to-Ground Resistance Range: 10–240 kΩ

● Motor-to-Ground Resistance Range: 1–80 kΩ

● Explosion-Proof Marking: Exdb I Mb

● Alarm Indication: Red LED (flashing at 2 Hz) + buzzer (stops after 5 min)

● Explosion-Proof Structure: Cast steel enclosure, explosion-proof housing, 9 mm tempered glass window, IP54 protection, cable entry device compliant with GB/T3836.1 standards (requires mining cables with outer diameter 8–12 mm)

● Weight: 6 kg

Functions:

● Displays battery pack working voltage with 0.5 class accuracy.

● Displays electrode-to-ground insulation resistance. If resistance falls below the set value, a red LED flashes and a buzzer alarm is triggered (stops after 5 min).

● When the locomotive controller is in the “0” position, the motor-to-ground insulation resistance is displayed. If below the set value, a red LED flashes and a buzzer alarm is triggered (stops after 5 min).

● Displays remaining battery capacity. If capacity falls below the set value, a red LED flashes and a buzzer alarm is triggered (stops after 5 min). After a 15 min delay, a relay is activated.