Digital density meter XY-885

compactconcentrationfor liquids

Overview
YUNYI XY-885 Straight Tube Density Meter is a precision instrument designed for continuous, real-time measurement of fluid density in industrial processes. It measures online density, temperature, and concentration of two-component mixtures. Features include on-site display, remote transmission capability, DC power supply with positive/negative polarity self-adaptation, and touch-key operation. The straight tube design provides superior flow-through characteristics, easy cleaning, low maintenance, and robustness against vibration, flow rate variations, and pressure changes.

Key Benefits

• Truly Maintenance-Free Operation – Fully integrated "plug and play" digital measurement with no moving parts, ensuring continuous service without routine maintenance
• Flexible, Hassle-Free Installation – Compact footprint; no on-site calibration or debugging required; ready to use out of the box
• Unique Direct Insertion Design – Insertion lengths up to 80 meters available for installations with limited access
• Integrated Intelligent Electronics – Integral transmitter supports both analog and digital communications for system integration
• Rigorously Factory Tested – Each unit undergoes strict factory validation before shipment for guaranteed accuracy
• Versatile Installation Options – Suitable for continuous measurement in main pipelines, bypass loops, tanks, and vessels
• Superior Corrosion & Wear Resistance – Wide selection of corrosion-resistant and anti-abrasive wetted materials
• Exceptional Reliability & Safety – Optimized design resists interference from vibration and pressure fluctuations
• Automatic Temperature Compensation – Built-in compensation corrects density measurements for temperature variations

Product Features

• Factory calibrated — ready for immediate installation; no on-site calibration required
• Simultaneous measurement of online density, temperature, and two-component concentration
• Local digital display with intuitive touch-key interface
• Remote transmission capability for centralized monitoring and control
• DC power supply with positive/negative polarity self-adaptation to prevent wiring errors
• Suitable for viscous and non-Newtonian fluids, low-flow media, non-homogeneous mixtures, media entraining solids or gas, slurry, highly corrosive fluids, and cryogenic to ultra-high temperature applications

Technical Specifications
Parameter: Specification
Suitable Media: Cement slurry, mineral slurry, mortar, viscous and crystallization-prone liquids, gas-entrained liquids
Density Measurement Range: 0 – 4 g/cm³ (range configurable)
Temperature Range: Standard: -50°C to 250°C; Extended: -200°C to 300°C (available on request)
Pressure Rating: ≤ 4 MPa (higher pressure ratings available upon request)
Power Supply: 24 VDC / 500 mA
Analog Output: 4 – 20 mA
Frequency Output: 0 – 1 KHz
Digital Communication: Modbus RTU 485
Explosion Protection: Ex d II C T6 Gb (flameproof enclosure)
Ingress Protection: IP67

Wetted Materials (Selectable)

• 316L Stainless Steel
• Hastelloy C276 / C22
• Titanium Alloy (Ti)
• HB3
• Monel
• Zirconium
• High Nickel Alloy

Applications

• Viscous & Non-Newtonian Fluids — Accurate measurement with high-viscosity and shear-sensitive media
• Low-Flow Applications — Reliable readings at extremely low fluid velocities
• Non-Homogeneous Mixtures — Handles uneven fluid compositions without loss of accuracy
• Media with Entrained Solids or Gas — Resistance to bubble and particle interference
• Slurry & Mining Applications — Cement slurry, mineral slurry, mortar, and abrasive suspensions
• Highly Corrosive Fluids — Acids, alkalis, aggressive chemicals using corrosion-resistant wetted parts
• Extreme Temperature Service — From cryogenic (-200°C) to ultra-high temperature (300°C)

Typical Industry Applications

• Oil & Gas — Crude oil density monitoring, product interface detection, refined product quality control, custody transfer measurement
• Chemical & Petrochemical — Polymer solution monitoring, acid/base concentration control, monomer and solvent quality assurance
• Mining & Mineral Processing — Ore slurry density measurement, tailings management, flotation control
• Food & Beverage — Wort density in brewing, juice and syrup concentration, dairy product standardization
• Pulp & Paper — Black liquor, green liquor, white liquor density; cellulose slurry measurement
• Power Generation — Flue gas desulfurization slurry monitoring, lime milk concentration
• Pharmaceutical — Process monitoring for APIs, batch consistency verification
• Custody Transfer & Trade Handover — High-accuracy density measurement for billing and quality verification

Why Choose the XY-885 Straight Tube Density Meter?

• True In-Line Measurement — Direct continuous measurement without sampling or bypass loops where space permits
• Superior Flow-Through Characteristics — Straight, unobstructed flow path reduces pressure drop and eliminates dead zones
• Low-Pressure Drop Operation — Minimal flow restriction compared to U-tube or bent-tube designs
• Excellent Bubble & Solids Tolerance — Enhanced performance in gas-entrained and solid-laden fluids
• Self-Draining Design — Easy rinsing and cleaning between batches; ideal for hygienic applications
• Simplified Maintenance — Straight tube geometry allows easy mechanical cleaning; no complex tube geometry to trap residues

Caractéristiques / spécifications techniques

• Model: XY-885
• Manufacturer: YUNYI
• Density range: 0 – 4 g/cm³ (configurable)
• Temperature range: Standard -50°C to 250°C; extended -200°C to 300°C (on request)
• Pressure rating: ≤ 4 MPa (options for higher ratings)
• Power: 24 VDC / 500 mA
• Analog output: 4–20 mA
• Frequency output: 0–1 KHz
• Digital comms: Modbus RTU (RS485)
• Explosion protection: Ex d II C T6 Gb
• Ingress protection: IP67
• Selectable wetted materials: 316L SS, Hastelloy C276/C22, Titanium, HB3, Monel, Zirconium, High Nickel Alloy
• Suitable for: viscous, non-Newtonian, low-flow, non-homogeneous, slurry, corrosive and extreme temperature media