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    Digital Tuning Fork Chemical Density Meter

    5 out of 5 based on 2 reviews | Write a review
    Cost-effective digital tuning fork density meter is used in chemical industry for measuring different chemical liquids, built-in temperature digital sensor, optional media temperature 0~100℃ or 0~150℃.
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    Low 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 different chemical liquids.


    • Model: ATO-APX301-CH
    • Application: Used in chemical industry
    • 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)

    Denisty meter dimensions

    Wiring diagram

    denisty meter wiring diagragm

    Tips: Advantages and disadvantages of tuning fork density meter

    • Advantages: Simple installation, plug and play, maintenance-free. The density of mixed media containing solids or air bubbles can be measured.
    • Disadvantages: The density meter is not ideal for measuring media that are easy to crystallize and scale.
    Existing reviews of Digital Tuning Fork Chemical Density Meter
    Density meter confirm
    Thank you Sameh!
    Just to confirm these meters cannot communicate via HART protocol correct.
    From: paddy | Date: 07/06/2023
    Was this review helpful? Yes No (0/0)
    ATO Responded
    These meters can communicate via the HART protocol.
    High quality density meter
    After buying and returning several of the the cheaper tuning fork models from other sites, I purchased this digital tuning fork chemical density meter. These tuning forks are a very good quality and finish. Five stars for this set of tuning forks!
    From: Shaina | Date: 22/11/2022
    Was this review helpful? Yes No (0/0)
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