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This test case verifies the performance of our patented real‑time voltage‑display connector installed on a Sany hydraulic proportional pump.
We carried out full‑range testing from 10% pump displacement up to 100% full displacement. The built‑in voltage indicator clearly reflects real‑time voltage variation corresponding to different output flow.
This proves our voltage‑display plug can be widely applied to PWM proportional solenoid valves. On‑site technicians can directly read working voltage without extra multimeter tools, quickly judge whether the electric‑hydraulic proportional control signal is normal, greatly speeding up fault diagnosis and maintenance for construction machinery.
The plug is plug‑and‑play, perfectly retrofittable for original proportional coils. Custom‑made versions are available for different brands of excavator hydraulic pumps and proportional valves.