Explosion proof Inline Liquid Density Meter

This compact MEMS liquid density sensor is ATEX II1G and IECEx Zone 0 certified for hazardous areas. It uses an omega-shaped silicon microchannel to measure liquid density via vibration frequency—denser liquids vibrate at lower frequencies. Measuring just 37 x 83 x 18.2 mm³, it fits into tight spaces and delivers real-time, high-precision results. A built-in platinum resistor compensates for temperature effects, and data is transmitted reliably via Modbus RTU.

Product Features

1. Modbus RTU communication
2. RS-485 point-to-point connection
3. Follows the Modbus serial communication specification
4. In-line measurement
5. Real-time measurement: Directly integrated into the process in operation
6. Instant data output: Measured values are output instantaneously
7. Fast media changeover: Enables quick change of measuring medium
8. Density measurement
9. Density range: suitable for density measurement of a wide range of liquids
10. Maximum measurement error: ±0.5 kg/m³
11. Repeatability: ±0.25 kg/m³
12. Suitable for liquids
13. hydrocarbon
14. Aqueous media
15. Concentration measurement is optional
16. Various types of sugars in water
17. Invert sugar in water
18. High fructose corn syrup
19. Methanol in water
20. Ethanol in water
21. Salt in water
22. Minerals in water
23. Hydrogen peroxide in water
24. Ethylene glycol in water
25. Butane in propane

Downloads

DLO-M2_ex Specification Sheet DLO-M2_ex Specification Sheet2

Specifications

Permissible density measurement range :600… 1000 kg/m³ (option: 0... 1200 kg/m³）
Permissible viscosity range :0.3… 5 mPa·s (option: 0.3... 50 mPa·s）
Allowable pressure of the medium:0… 20 bar (absolute)
Burst pressure: 80 bar (absolute)
Allowable particle size :Up to 30 μm
Allowable flow range :0… 10 l/h (with water as medium)
Vibration:Due to the high operating frequency of the microchannel, vibration (<20 kHz) has no effect on the measurement accuracy.
Import and export section :The inlet and outlet sections have no effect on the measurement accuracy.