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| Brand | Thermo Fisher |
|---|---|
| Origin | USA |
| Manufacturer | Thermo Fisher Scientific |
| Product Type | Oscillating U-tube Densimeter (Note: Correction — actual principle is gamma-ray transmission, not oscillating tube |
| Instrument Category | Benchtop Laboratory / Industrial In-Line Density Meter |
| Detection Method | Non-contact Gamma-Ray Transmission Densitometry |
| Radiation Sources | Cs-137 or Co-60 |
| Density Measurement Principle | Attenuation-based gamma-ray transmission through process media |
| Temperature Operating Range | –40 °C to +75 °C |
| Environmental Rating | NEMA 4X / IP65 |
| Detector Configuration | Integrated or Remote (Split) |
| Multiplexing Capability | Up to 4 independent measurement channels per microprocessor unit |
| Analog I/O | 4 × 4–20 mA inputs, 2 × 4–20 mA outputs, 2 × 0–10 V inputs, 2 digital inputs, 2 relay outputs |
| Communication Interfaces | RS232 / RS485, 10/100 M Ethernet with ESD protection, USB |
| Power Supply | 115/230 V AC ±10%, 50/60 Hz or 24 V DC |
| Certified Compliance | IEC 60068-2-6 (sinusoidal vibration), IEC 60068-2-64 (random vibration), IEC 60068-2-27 (shock), IEC 60068-2-38 (temp/humidity cycling) |
| Radiation Safety | Lead-shielded source housing |
| activity range | 1–10,000 mCi (Cs-137) or 1,000–3,000 mCi (Co-60) |
| Brand | Thermo Fisher |
|---|---|
| Origin | USA |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Origin Category | Imported |
| Models | FD910, FD950, FD960, FD900, ID900, PD900 |
| Instrument Type | Oscillating U-tube Densimeter |
| Form Factor | Benchtop & In-line Process |
| Application Focus | Petroleum, Petrochemical, Chemical, LNG, and Power Generation |
| Density Range (Liquid) | 0–2100 kg/m³ |
| Density Range (Gas) | 0–1000 kg/m³ (FD900/ID900), 0–250 kg/m³ (PD900) |
| Accuracy (Liquid) | ±0.1 kg/m³ |
| Repeatability (Liquid) | 0.02 kg/m³ |
| Temperature Compensation | Integrated 4-wire PT100 (1/3 DIN) |
| Operating Temp (Liquid) | −50°C to +180°C |
| Operating Temp (Gas) | −200°C to +200°C |
| Pressure Rating | Up to 170 bar (FD900), 150 bar (ID900), 100–150 bar (PD900) |
| Enclosure Rating | IP65 / NEMA 4X |
| Hazardous Area Certifications | ATEX Ex ia IIC T4/T6, CSA Class I Div 1 Groups B, C, D, IECEx, NACE MR0175/ISO 15156 compliant |
| Output Options | 4–20 mA + HART (HME900), Frequency/Modulated Current (CM515), Dual-Channel PT100 |
| Calibration | NIST-traceable, performed in ISO/IEC 17025-accredited laboratory |
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