Rosemount electromagnetic flowmeter

Name: Rosemount electromagnetic flowmeter
Brand: Shenyang STO Instrument Co., Ltd
Availability: InStock

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Overview

Step 1: Flow Sensor Type Application Precautions Accuracy Options Caliber Coil Drive Power 8705 Standard Process Design 0

Step 1: Type of flow sensor

type	Application precautions	Precision options	caliber	Coil driving power
8705	Standard Process Design	0.25% standard accuracy 0.15% high precision	15 - 900 mm 0.5-36 inches	pulsed dc
8711	Compact and lightweight	0.25% standard accuracy 0.15% high precision	4 - 200 mm 0.15-8 inches	Pulse DC
8721	Specially designed for food and beverage as well as life sciences, certified by 3-A and EHEDG	0.5% standard accuracy 0.25% high precision	15-100 mm 0.5-4 inches	Pulse DC
8707	The best choice for working conditions with high slurry flow rate and noise in pulp and paper, metallurgy and mining	0.5% standard accuracy 0.25% high precision	80 - 900 mm 3-36 inches	large signal pulsed dc

Step 2: Lining Material Selection

Lining	explanatory note	Temperature range	Type and caliber
PFA (perfluoroalkoxy)	The best fluorinated polymer Excellent chemical resistance and wear resistance. Suitable for any application.	-20 to 350 ° F (-29 to 177 ° C)	Flange style 15 - 350 mm 0.5-14 inches	wafer type 4 - 8 mm 0.15-0.3 inches
PTFE (polytetrafluoroethylene)	Better fluorinated polymers More economical than PFA. Excellent chemical resistance, but poorer wear resistance than PFA.	-20 to 350 ° F (-29 to 177 ° C)	Flange style 15 - 900 mm 0.5-36 inches	wafer type 15 - 200 mm 0.5-8 inches
ETFE (ethyl polytetrafluoroethylene)	Good fluorinated polymer The chemical resistance and wear resistance are similar to PTFE, but the maximum temperature resistance is lower and the price is expensive.	-20 to 300 ° F (-29 to 149 ° C)	Flange style 15 - 400 mm 0.5-16 inches	wafer type 15 - 200 mm 0.5-8 inches
polyurethane	Usually suitable for clean water (without chemicals). It has anti-wear properties for the application of slurry with small particles.	0 to 140 ° F (-18 to 60 ° C)	Flange type 15 - 900 mm 0.5-36 inches
Chloroprene rubber	Usually applicable to freshwater and seawater. Has anti-wear properties for slurries with small particles.	0 to 185 ° F (-18 to 85 ° C)	Flange type 80 - 1800 mm* 1.5-72 inches
Natural rubber	Usually suitable for mineral slurry, it has anti-wear properties for larger particles.	0 to 158 ° F (-18 to 70 ° C)	Flange type 80 - 900 mm 1.5-36 inches

Step 3: Electrode type and material selection

	electrode type	Application precautions
	Button style	Standard electrode design. Suitable for most applications, especially those where wear has become a concern. Good resistance to adhesion can be improved by adjusting the size of the flow sensor appropriately.
	bullet-shaped	Used in situations where adhesion is a concern and there are no solid substances present. Bullet head electrodes should not be used in abrasive or slurry applications, as particles will cause increased process noise on the electrode.

Electrode material		Application precautions
316L stainless steel		Standard electrode material. Avoid using stainless steel in concentrated acid applications compared to most low concentration aqueous solutions.
Hastelloy 276		Used in medium to high concentrations of acid where stainless steel cannot be used. Used in applications with high chloride content, such as seawater.
platinum (80% platinum, 20% iridium)		It is an ideal choice for liquid applications in the pulp and paper industry. It is also an ideal choice for backup electrodes that cover almost all applications in factories. Suitable for almost every process fluid.
tantalum		It is an ideal choice for measuring the flow rate of high concentration acids such as hydrochloric acid and hydrofluoric acid.
titanium		It is an ideal choice for high concentration corrosive (alkaline) applications such as sodium hydroxide and potassium hydroxide.

Step 4: Select the transmitter

type	explanatory note	Precision options	power supply	User Interface Output Protocol (LOI)
8732	Integrated or split installation	0.25% standard accuracy 0.15% high precision	AC/DC	HART ®、 FF fieldbus optical switch LOI or display only
8712	Split wall mounted	0.25% standard accuracy 0.15% high precision	AC/DC	HART specific button LOI
8712H big signal	Split wall mounted. Only compatible with 8707 sensors.	0.5% standard accuracy 0.25%	115V AC	HART Special button LOI

Step 5: Diagnosis and Enhancement Function

type	explanatory note	Applicability
Standard diagnosis	Transmitter hardware malfunction; Transmitter software malfunction; Sensor coil malfunction; Air traffic control inspection	All 8700 transmitters
D1	High precision option (0.15%)	8732 and 8712 models
AX	Enhanced DI/DO capability	8732 and 8712 models

HART⁄FF
DA1⁄D01	The diagnostic kit includes: grounding and wiring fault detection, high process noise detection.	8732 and 8712 models
DA2⁄D02	Diagnostic kit includes: 8714i built-in instrument calibration	8732 and 8712 models

Technical Parameter
caliber	15mm -1200mm (0.5 inches -48 inches)
Lining material	Polytetrafluoroethylene, chloroprene rubber
Electrode material	Stainless steel, nickel alloy
Flange standard	ANSI、EN、GB、AS4087、AS2129、JIS、AWWA
Flange rating	Up to 300 #/PN40/4.0Mpa/PN35/Table E/10K/Class D
accuracy	Standard 0.5%; Optional high-precision 0.25%
Installation method	Integrated installation/Split installation/Wall installation
Transmitter output	4-20 mA digital electronic components (HART protocol)
power supply	AC (90-250 V AC, 50–60 Hz); DC (12–42 V DC)
Process diagnosis	Air traffic control, grounding/wiring inspection, high process noise Coating electrode detection
Intelligent instrument self calibration	Instrument integrity