Digital Tuning Fork Density Meter for Liquids

Factory price digital tuning fork density meter is mainly composed of a transmitter, a vibrating fork body and a temperature measuring element, which can be used for measuring LiOH solution, sulfuric acid solution, lime slurry, NH3·nH2O, and urea ammonium nitrate solution.

Specification

• Model: ATO-APX301-LI
• Measuring Medium (Optional): LiOH Solution, Sulfuric Acid Solution, Lime Slurry, NH₃·nH₂O, Urea Ammonium Nitrate Solution
• Measuring Range: 0 – 2.5 g/cc (0 – 2500 kg/m³), 0~100.0%
• Calibration Range: 0 – 2.5 g/cc (0 – 2500 kg/m³), 0~100.0%
• Measurement Accuracy: ± 0.002 g/cc (± 2 kg/m³), ±0.5%
• Repeatability: ± 0.001 g/cc (± 0.2 kg/m³) ±0.1%
• Medium Temperature Range: -50℃ ~ +150℃
• Working Pressure (Optional): 0.2~0.3MPa, Max. Pressure ≤4MPa
• Fluid Viscosity Range: 0 – 600Cp
• Media Temperature (Optional): 0~100℃, 0~150℃
• Temperature Coefficient: ＜0.1 kg/m³/℃ (± 0.5%) After Correction
• Stress Effect: Negligible
• Built-in Temperature Sensor: Digital Sensor
• Wetted Material (Optional): 316 Stainless Steel, 316 Stainless Steel + PTFE, 316 Stainless Steel +PFA, 2205 Stainless Steel, Hastelloy Alloy C276, Titanium Alloy
• Electrical Connection (Optional): M20*1.5, G1/2, NPT1/2
• Connection Type (Optional): G1/2” Thread, DN50 Flanged, DN80 Flanged, 1/2” Trip Clamp, 2” Trip Clamp
• Fork Body Coating: Standard PTFE or PFA
• Power Supply: 24VDC, ≥50mA
• Analog Signal Output: 4-20mA, 0-1000Hz, RS485 Modbus, 4 Wires
• Output Accuracy (20℃): ± 0.1% of reading or ± 0.05% FS
• Output repeatability (-40~+85℃): ± 0.05% FS
• Protection Level: IP65
• Shell: Aluminum Alloy

Dimensions (Unit: mm)

Wiring diagram

Tips: What are the factors that cause the measurement error of the tuning fork density meter?

• Temperature: Temperature will affect the elastic modulus of the resonant element and other mechanical structures such as length and thickness changes.
• Liquid flow: Due to the frictional force of liquid flow, the pipe wall is subjected to shear force, which will affect the change of resonance frequency.
• Dirt pollution: If there is dirt inside, it will inevitably change the resonance period.