Multi-Variable Differential Pressure Transmitter (ALDPT-MV)
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Multi-Variable Differential Pressure Transmitter (ALDPT-MV)
Specifications
Sizes: Any
Accuracy: ±0.2%, ±0.075% of reading
Process Temperature: 4-752°F(-20- 400)°C
Application: Where multiple parameter measurement such as flow, DP, temperature, mass flow is required from one instrument
Styles: Multi-variable Differential Pressure
Measuring range: Based on DP of 0 -2Mpa (290 PSI)
Metering tube: SS #316L, Hastelloy C, Tantalum
Outputs & Electronics: 4~20 mA square root output, HART, MODBUS
Connection: “-18 NPTF & "-20 UNF, no drain or with drain top, side or bottom of flange
Process Medium: 3 or 5-way valve manifold for primary DP flow element (ACONE), 2" pipe mounting brackets, O2 cleaning, capillaries (many fill fluids)
The ALDPT-MV measures three separate process variables simultaneously and provides dynamic calculation of fully compensated mass flow rate for steam and liquids as well as standard volume flow for gases. It measures differential pressure and absolute pressure from a single sensor and process temperature from a standard PT 100 Resistance Temperature Detector (RTD). Flow calculation includes compensation of pressure and/or temperature as well as more complex variables such as discharge coefficient, thermal expansion, Reynolds number and compressibility factor.
The ALDPT-MV includes flow equations for steam, gases and liquids so that one model is all you need in your system. It can also measure static pressure with either integral or remote electronics and has an optional HART output. Many plants calculate mass flow in a host computer using a simplified mass flow equation. The ALDPT-MV provides full compensation of over 25 different parameters to achieve a 5X improvement in flow performance compared to uncompensated DP flow. The ALDPT-MV is ideally suited to work with SMC’s ACONE primary flow elements.
| Differential Pressure Measuring Range: | 0~200Pa to 0~2000 kPa |
| Absolute Pressure Measuring Range: | up to 40 MPa |
| Temperature: | –50 ~ 650 °C |
| Fluid Media: | liquid, gas and steam |
| Accuracy Grades: | 0.2%, 0.5% of reading |
| Process Connection: | Flange with ⁄ -20 UNF mounting threads and ¼-18 NPT female ports on both sides |
| Turn-down: | 100:1 |
| Drift (Micro): | 0.1%FS/3 years |
| Relative humidity: | 0 ~ 100% RH |
| Sensor damping: | 0.1~1.6 sec |
| Protection: | IP 67 |
| Response Time: | 0.1 sec |
| Amplifier damping: | 0 to 60 seconds adjustable |
| Storage Temperature: | -20 ~ 85 °C |
| Weight: | 3.5 kg |
| Sensor Body and Flange Materials : | SS #316L |
| Diaphragm Materials: | 316L stainless steel / Hastelloy C / Gold plated on 316L / EFP plated on 316L / Tantalum |
| Nuts & Bolts Materials: | SS# 304 |
| Power Supply: | 24 VDC supply, R≤(Vs-12V)/Imax kΩ, Imax=23 mA / Max. Voltage to 42VDC, Min. to 12VDC; 15VDC(with display) / 230Ω to 600Ω for digital communication |
| Approvals: | Isolated explosion ExdIIBT5 or ExdIICT6 |
| Process Connection Materials: | SS #316 |
| Fill Fluid: | Silicone oil/Fluorinated oil |
| O-ring: | Perbunan(NBR) / Viton (FKM) / Teflon(PTFE) |
| Electrical Enclosure Materials: | Aluminum with epoxy resin coat; gasket: Perbunan (NBR) |
| Output Signals: | 4~20 mADC , MODBUS, HART |
Refer to the link for more details: https://www.smartmeasurement.com/multi-variable-differential-pressure-transmitter/
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