Diaphragm Level Transmitter

What It Is

The YD‑322A is a submersible level transmitter designed for open tanks, reservoirs, and sumps. It uses a rugged diffusion silicon sensor and outputs a standard 4‑20mA signal proportional to liquid level. No complicated setup – just install it and start measuring.

Simple Key Features

• Submersible design – drop it directly into the liquid; works in water, chemicals, slurries, and more

• Stable and accurate – available in 0.1%, 0.2%, or 0.5% accuracy classes

• Standard output – 4‑20mA (also 1‑5V or HART on request)

• Rugged construction – corrosion‑resistant, waterproof, shockproof, and EMI‑protected

• Easy installation – thread, flange, or clamp connections available

• Local display option – add an LED or LCD display for on‑site reading

• Explosion‑proof versions – flameproof or intrinsically safe options for hazardous areas

Common Applications

• Open tank level monitoring (water, chemicals, oil)

• Reservoir and dam water levels

• Pharmaceutical and food processing vessels

• Mining slurry and wastewater

• Power plant and industrial automation

Why Choose This Transmitter

• Works out of the box – no complex programming

• Built to last – handles overpressure, lightning, and electrical noise

• Versatile – fits most open tanks with custom connection options

• Cost‑effective – good performance at a competitive price