Differential pressure online density meter

NegotiableUpdate on 05/20

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

The core working principle of the pressure differential online densitometer is based on the formula P=ρ gh for liquid static pressure difference. There are two pressure sensors (or pressure relays) inside the instrument, which are installed at a fixed vertical distance (h). The sensor measures the pressure difference (Δ P) generated by the liquid column, and with the known local gravity acceleration (g) and height (h), the density (ρ) of the liquid can be calculated. To ensure accuracy, devices usually have built-in temperature sensors (such as PT1000) that automatically compensate for changes in medium temperature. ‌

Product Details

Differential pressure online density meterIts core working principle is based on the formula P=ρ gh for liquid static pressure difference. There are two pressure sensors (or pressure relays) inside the instrument, which are installed at a fixed vertical distance (h). The sensor measures the pressure difference (Δ P) generated by the liquid column, and with the known local gravity acceleration (g) and height (h), the density (ρ) of the liquid can be calculated. To ensure accuracy, devices usually have built-in temperature sensors (such as PT1000) that automatically compensate for changes in medium temperature. ‌

performance parameters
accuracy class	Level 0.5
Environmental temperature impact	≤±0.2%/10℃
long-term stability	≤± 0.2%/URL (12 months)
The impact of installation location	The influence of any installation position can be corrected through zero point fine-tuning
Static pressure influence	≤± 0.1%/range/1.0Mpa
response time	0.25s
Power supply impact	≤±0.005%/URL/V
vibration impact	≤±0.25%/URL/g
Operating Temperature	-40~315℃
environment/Storage temperature	-40~70℃
use/Storage humidity	≤95%RH
Radiation interference (shell)	30MHz-1000MHz
Conducted interference (power port)	0.15MHz-30MHz
surge immunity	220V
power supply	24V DC
Load range	Current type load resistorRL（≤Us-Umin）/0.03
Instrument diagnostic function	When the instrument malfunctions, output an alarm current
Display variables	Percentage, current, main variable（g/cm³、kg/m³）
HART communication requires voltage	（18.5-24）V
Shell material	Cast aluminum baking paint (default), stainless steel304, stainless steel 316L
Protection level	IP65
Sensor diaphragm	316L (default) HC、 Tantalum, 316L gold-plated
Sensor filling fluid	Silicone oil (default), fluorine oil, high-temperature silicone oil, vegetable oil
The relationship between power supply voltage and load	load resistorRL calculation formula: RL=(Vs-12)/0.025（Ω） RL load resistance value (Ω) Vs - Power Supply Voltage (V)