The DFL-901 float level transmitter is one of the DDZ-III series instruments. Its transmission part adopts the lever principle and the method of measuring the angle of rotation to directly measure the buoyancy force of the inner cylinder in the liquid. The high-precision strain sensor obtains a measurement signal consistent with the level change, which is converted into a standard signal output of 4-20mA through a dedicated circuit.
Characteristics
1. The measurement range is 0-6m wide, and special requirements can measure 10m;
2. The measuring and sensing parts are isolated, corrosion-resistant, and resistant to high temperatures (400 ℃) and high pressures (22MPa);
3. Reliable transmission, flexible installation method, capable of measuring pressure on various tanks and open containers such as sewage tanks;
4. The measuring cylinder can be made into a hose to replace the input type liquid level transmitter, solving the problem of non-standard measurement after the head sensor of the input type liquid level transmitter is blocked.
Technical parameters
1. Working voltage: 24VDC
2. Output signal: 4-20mA two-wire system
3. Load resistance: ≤ 750 Ω
4. Measurement accuracy: 1.0%
5. Work pressure: 1.6, 2.5, 4.0, 6.4, 16, 22MPa
6. Working temperature: ≤ 120 ℃ ≤ 400 ℃ (high temperature type)
7. Wetting material: Carbon steel or 1Cr18Ni9Ti
8. Flange standard: JB/T82.1 Flat flange JB/T82.2-94 Convex flange (DN40)
9. Explosion proof grade: ia Ⅱ CT5
Product selection table: Float level transmitter

Example of selection: DFL-901A1TD2-0.9-5000; express
Measurement type: A - for liquid level measurement
Installation method: 1- Install the top flange of the inner float,
Measurement material: T - carbon steel,
Working temperature: D - less than 120 ℃,
Work pressure: 2-4.0MPa,
Medium density: 0.9g/cm3,
Range: 5000mm.
Overall dimensions

wiring diagram

+, - "indicates: 24VAC power supply and 4-20mA output
'S' represents range adjustment
Z "represents zero point adjustment