Flow Measurement for Pulp Stock Flow
Reduce risk of decreased paper strength and save costs in pulp and paper production
Stable flow measurement in pulp stock flow after LCR refiner
Pulp and paper suppliers measure the total flow of pulp stock after several (LCR) Low Consistency Refiners. LCR’s buff or curl the pulp fibers to help bond the fibers together creating a much stronger paper. Suppliers can have difficulty providing uniform flow of the stock through the refiner blades and continuous uniform fiber supply to the paper machine which may lead to an unstable flow measurement. The process may be switched to manual mode to maintain the correct paper strength due to the unstable flow measurement, which increases risks of decreased paper strength and quality.
Advanced Diagnostics of the Rosemount 8700 Magnetic flow meter transmitters improves stability of the flow measurement allowing the mill to run in automatic mode decreasing operation costs. By better controlling the process, waste is reduced, and higher paper strength is consistently achieved, resulting in a high-quality paper product.
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Product Solutions
With best-in-class performance, Rosemount 8732E Field Mount Magnetic Flow Meter Transmitters provide highly accurate and stable measurements in even the most critical applications. A dual-compartment transmitter housing provides isolation from the external environment, keeping the electronics free from moisture and other contaminants. Additionally, the advanced diagnostics and intuitive through-the-glass Local Operator Interface provide unparalleled process insight and management capabilities. The transmitter can be either integrally or remotely mounted for easy installation, maintenance and verification.
- Continually monitor meter health and performance without stopping the process with Smart Meter Verification
- Prevent moisture ingress with dual-compartment transmitter housing
- Improve process management with advanced Digital Signal Processing
Sensor compatibility
Compatible with Rosemount 8705, 8711, and 8721sensors. Compatible with AC and DC powered sensors ofother manufacturers.
Transmitter coil drive current
500mA
Flow rate range
Capable of processing signals from fluids that are travelingbetween 0.04 and 39 ft/s (0.01 to 12 m/s) for both forwardand reverse flow in all sensor sizes. Full scale continuouslyadjustable between –39 and 39 ft/s (–12 to 12 m/s).
Rosemount 8705 Flanged Magnetic Flow Meter Sensors provide long-lasting, reliable performance in even the most challenging applications. An all-welded construction provides a hermetic seal that protects against moisture and other contaminants. The sealed housing ensures maximum sensor reliability by protecting all internal components and wiring from even the most aggressive environments. A removable and replaceable terminal block enables easy repair in the field without the need to replace the entire meter.
- For maximum protection, a fully welded sensor housing provides a hermetic seal
- Avoid process shutdown with a removable and replaceable terminal block that enables repairs in the field
- Capture any potential process fluid leakage with optional secondary containment compartments to surround electrodes
Accuracy
Up to 0.15% of volumetric flow rate accuracy over 13:1 flow turndowns, 0.25% over 40:1 flow turndown
Line Sizes
½-36 inch (15-900 mm)
Liner Materials
PTFE, ETFE, PFA, Polyurethane, Neoprene, Linatex Natural Rubber
Intuitive Local Operator Interface with dedicated keys enhance ease of use and enables instant access to all diagnostic information. Ideal for hazardous environments or difficult-to-reach locations.
- Intuitive Local Operator Interface with dedicated keys for ease of use
- Maximize uptime with Smart Meter Verification which monitors meter health and performance without stopping the process
- Optimize control in noisy applications with High Process Noise diagnostic and Selectable Coil Drive Frequency options
Accuracy
Up to ±0.15% of volumetric flow rate accuracy over 13:1 flow turndowns, ±0.25% over 40:1 flow turndown.
Diagnostic
In Situ Meter Verification, Grounding & Wiring Fault Detection, High Process Noise Detection, Tunable Empty Pipe Detection, Transmitter Fault Detection, Sensor Fault Detection
Compatibility
All Rosemount manufactured Sensors: 8705, 8711, 8721, 8707
Universal capabilities allow E-Series transmitters to be compatible with AC and DC powered sensors from other manufacturers.
Universal capabilities allow E-Series transmitters to be compatible with AC and DC powered sensors from other manufacturers.
The 8782 Slurry Transmitter is ideal for high noise applications where the highest levels of performance are required. Incorporating our latest in advanced signal processing, the 8782 is able to stabilize an otherwise noisy process flow signal without having to compromise on responsiveness. Advanced signal processing and real-time diagnostics deliver measurement confidence and the ability to automatically control the loop leading to: improved product quality, a reduction in raw material cost, minimizing waste and re-work required, and more peace of mind.
- Optimize customizable signal processing settings in noisy applications with high process noise diagnostic and selectable coil drive frequency options
- Selectable levels of advanced signal processing allows for the elimination of signal spikes and noise while maintaining responsiveness
- Increase uptime with Smart Meter Verification which monitors meter health and performance without stopping the process signal
Reference Accuracy
±0.25% with optional ±0.15% high accuracy
Consult Product Data Sheet for full accuracy specifications
Consult Product Data Sheet for full accuracy specifications
Diagnostics
Standard: Grounding and wiring fault, tunable empty pipe, electrode saturation, reverse flow detection and general electronics and meter circuit diagnostics
Optional: Process diagnostics with coated electrode detection and high process noise detection
Optional: Smart Meter Verification Professional
Optional: Process diagnostics with coated electrode detection and high process noise detection
Optional: Smart Meter Verification Professional
Power Supply
AC: 90 to 250V AC, 50-60Hz
DC: 12 to 42V DC
DC: 12 to 42V DC
