YOKOGAWA AXG250 - User Manual

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Summary

Introduction and Manual Information

Manual Overview and Safety Symbols

Defines safety symbols (WARNING, CAUTION, IMPORTANT, NOTE) used in the manual.

User Manual Scope and Usage

Covers manual distribution, rights, warranty, and intended personnel for correct use.

Product Safety and Usage Guidelines

Details essential safety precautions and guidelines for the correct and safe operation of the product.

Explosion Protection Type Details

Technical Data for Explosion Protection

Lists applicable standards, certifications, and technical parameters for explosion protection types.

Cable Entry and Grounding Procedures

Explains cable entry types, markings, screw sizes, and grounding terminal connections.

Installation and Wiring Requirements

Covers wiring compliance, aperture sealing, insulation, hazardous location wiring, and grounding conductor.

Operation Safety Precautions

Guidelines for safe operation, including preventing sparks and handling covers with specific warnings.

Maintenance and Repair Policy

States that only authorized Yokogawa personnel can perform maintenance and repair.

Specific Conditions for Safe Use

Details specific conditions like impact avoidance, electrostatic charges, and installation categories for safe usage.

Summary

Introduction and Manual Information

Manual Overview and Safety Symbols

Defines safety symbols (WARNING, CAUTION, IMPORTANT, NOTE) used in the manual.

User Manual Scope and Usage

Covers manual distribution, rights, warranty, and intended personnel for correct use.

Product Safety and Usage Guidelines

Details essential safety precautions and guidelines for the correct and safe operation of the product.

Explosion Protection Type Details

Technical Data for Explosion Protection

Lists applicable standards, certifications, and technical parameters for explosion protection types.

Cable Entry and Grounding Procedures

Explains cable entry types, markings, screw sizes, and grounding terminal connections.

Installation and Wiring Requirements

Covers wiring compliance, aperture sealing, insulation, hazardous location wiring, and grounding conductor.

Operation Safety Precautions

Guidelines for safe operation, including preventing sparks and handling covers with specific warnings.

Maintenance and Repair Policy

States that only authorized Yokogawa personnel can perform maintenance and repair.

Specific Conditions for Safe Use

Details specific conditions like impact avoidance, electrostatic charges, and installation categories for safe usage.

The provided document is a user manual for the ADMAG TI Series AXG Magnetic Flowmeter, FM (USA) Explosion Protection Type. This manual, identified as IM 01E21A03-01EN, 1st Edition, provides essential guidelines for the safe and correct use of these magnetic flowmeters in hazardous locations, specifically those certified for explosion protection in the USA by FM (Factory Mutual).

Function Description

The ADMAG TI Series AXG Magnetic Flowmeter is designed to measure fluid flow. The "TI" in ADMAG TI stands for "Total Insight," indicating advanced diagnostic and operational capabilities. The AXG series specifically refers to magnetic flowmeters, which are suitable for measuring the flow of conductive liquids. The "FM (USA) Explosion Protection Type" designation means these devices are certified for use in environments where flammable gases, vapors, liquids, or combustible dusts may be present, ensuring safe operation by preventing ignition sources. The manual covers both integral flowmeters (where the sensor and transmitter are combined) and remote type flowmeters (where the sensor and transmitter are separate units).

Important Technical Specifications

The manual details critical technical specifications for the explosion-protected versions of the flowmeter, categorized by type (Integral Flowmeter, Remote Sensor, Remote Transmitter) and explosion protection code (FF2, FJ2, FT2).

Applicable Standards: The devices comply with a comprehensive set of FM and ANSI/UL standards, including:

FM 3600, FM3610, FM3615, FM3616, FM3810
ANSI/UL UL 50E, NEMA 250
ANSI/UL 60079-0, ANSI/UL 60079-7, ANSI/UL 60079-11, ANSI/UL 60079-18
ANSI/UL 61010-1, ANSI/UL 61010-2-30 The certification number is FM 17US0140X.

Explosion Protection Types and Codes:

Integral Flowmeter (Explosionproof - FF2):
- Type of Protection: CL I/II/III GP ABCDEFG, IS CL I GP ABCD, T6...T3
- Enclosure: Type 4X
Explosionproof with Output IS Circuit (FJ2 and FT2):
- Type of Protection: CL I/II/III GP ABCDEFG, IS CL I GP ABCD, AIS CL I/II/III GP ABCDEFG, T6...T3
- Enclosure: Type 4X
Remote Sensor (Explosionproof - FF2):
- Type of Protection: CL I/II/III GP ABCDEFG, IS CL I GP ABCD, T6...T3
- Enclosure: Type 4X
Remote Transmitter (Explosionproof - FF2):
- Type of Protection: CL I/II/III GP ABCDEFG
- Enclosure: Type 4X
Remote Transmitter (Explosionproof with Output IS Circuit - FJ2 and FT2):
- Type of Protection: CL I/II/III GP ABCDEFG, AIS CL I/II/III GP ABCDEFG
- Enclosure: Type 4X

Electrical Specifications:

Power Supply:
- 100 to 240 Va.c. (50/60 Hz)
- 100 to 120 Vd.c.
- 24 Va.c. (50/60 Hz)
- 24 Vd.c.
- Um: 250 V (Maximum input voltage for intrinsically safe circuits)
Current I/O: 4 to 20 mA, 32 Vd.c. max.
Digital I/O: 30 Vd.c. max., 200 mA max.
Fieldbus I/O: 32 Vd.c. max., 15 mA max.

Environmental and Process Conditions:

Ambient Temperature:
- Integral Flowmeter and Remote Sensor: Varies based on process connection, lining, and temperature class, as detailed in Table 2.1 and Table 2.2. Ranges from -40°C to +60°C.
- Remote Transmitter: -40°C to +60°C (Temperature class: T6)
Process Temperature: Varies based on model, size, process connection, and lining, as detailed in Table 2.1 and Table 2.2. Ranges from -40°C to +150°C.
Maximum Working Pressure: "Fluid Temperature and Pressure" charts (Figures F0201.ai to F0206.ai) illustrate the usable range of the sensor based on fluid temperature and pressure, also limited by the flange pressure rating.
Enclosure: Type 4X, indicating protection against ingress of dust, rain, sleet, snow, external ice formation, and corrosion.

Sensor and Lining Details (Table 2.1): The manual provides a detailed table mapping model numbers (AXG###, where ### indicates size), process connection types (Wafer, Flange, Clamp, Union, Butt Weld Joint), and lining materials (PFA Lining, Ceramics Tube) to specific temperature tables (A through J) for both Integral Flowmeters and Remote Sensors.

Sizes: Ranging from 2.5 mm (0.1 in.) to 400 mm (16 in.).
Lining Materials: PFA Lining and Ceramics Tube.

Intrinsically Safe (IS) Circuit Parameters (Control Drawings DIE016-A92, pages 01-04): For models with IS output circuits (FJ2, FT2), detailed control drawings specify the intrinsic safety parameters:

Iout1/Iout2 (Associated Apparatus):
- Ui: 30 V
- Ii: 300 mA
- Pi: 1.25 W
- Ci: 4.84 nF (Iout1), 14.6 nF (Iout2)
- Li: 12 µH
P/Sout1/P/Sout2 (Associated Apparatus):
- Ui: 30 V
- Ii: 300 mA
- Pi: 1.25 W
- Ci: 14.6 nF
- Li: 12 µH
Fieldbus (FISCO/Entity):
- Ui: 30 V
- Ii: 380 mA
- Pi: 5.32 W
- Ci: 5 nF
- Li: 10 µH

These parameters define the maximum voltage (Ui), current (Ii), power (Pi), capacitance (Ci), and inductance (Li) that the intrinsically safe circuit can safely handle without causing ignition in a hazardous atmosphere. Associated apparatus connected to these circuits must have compatible parameters (Uo ≤ Ui, Io ≤ Ii, Po ≤ Pi, Co ≥ Ci + Ccable, Lo ≥ Li + Lcable).

Usage Features

The manual emphasizes strict adherence to safety precautions and installation guidelines for explosion protection.

Safety Markings and Symbols:

WARNING: Indicates a hazard that could result in injury or death.
CAUTION: Indicates a hazard that could result in damage to the product or system.
IMPORTANT: Denotes information to avoid damage or system failure.
NOTE: Provides essential information for understanding operation and features.
Symbols: Protective grounding, functional grounding, alternating current, direct current, and a general caution symbol referring to the user manual.

Explosion Protection Specifics:

Covers: Terminal box and display covers are locked with special hexagonal screws (nominal size 3). Power must be turned off before opening, and covers must be re-locked after closing.
Cable Entry: Stamped with "N" for ASME 1/2 NPT Female screw size.
Wiring: All wiring must comply with NFPA70 (US) and local electric codes. Unused apertures must be sealed with certified blanking elements.
Conduit Seals: "SEAL ALL CONDUITS WITHIN 18 INCHES" is required for hazardous locations. Dust-tight conduit seals are necessary for Class II or Class III environments.
Grounding: Grounding terminals are provided both internally and externally. The conductor must be secured to the terminal with appropriate torque. AXG/AXW Series Flowmeters and Remote Sensors/Transmitters must be grounded to an intrinsic safety ground system.
Heat Resistant Wiring: For ambient temperatures exceeding 50°C, external heat-resistant wiring with a maximum allowable temperature of 70°C or above must be used.
Over-voltage Category: The product must be installed as over-voltage category II.
Electrostatic Charging: A warning about potential electrostatic charging hazard is present, especially for non-metallic or coated parts, and for titanium electrodes/grounding rings which should be kept away from impacts and frictions.

Control Drawings: Detailed control drawings (DIE016-A92) are provided for Integral Type Flowmeters (FJ2, FT2) and Remote Type Flowmeters (FJ2, FT2) to guide installation in hazardous locations, specifying connections to associated apparatus and power supplies. These drawings are crucial for ensuring intrinsic safety and explosion protection compliance.

Maintenance Features

The manual highlights specific considerations for maintenance and repair, particularly concerning explosion protection.

Authorized Personnel:

Only personnel authorized by Yokogawa Electric Corporation are permitted to repair the equipment. This restriction is critical for maintaining the explosion protection integrity of the device.

Safety During Operation and Maintenance:

Mechanical Spark Prevention: Care must be taken to avoid generating mechanical sparks when accessing the product and peripheral devices in hazardous locations.
Warning Markings: Users must observe specific warning markings before opening covers:
- Integral Flowmeter and Remote Transmitter: "AFTER DE-ENERGIZING, DELAY 20 MINUTES BEFORE OPENING." This indicates a required waiting period after power removal to allow for de-energization and dissipation of stored energy, preventing ignition.
- Remote Sensor: "OPEN CIRCUIT BEFORE REMOVING COVER." This ensures that the circuit is de-energized before physical access, preventing electrical hazards.
Cover Re-locking: After any maintenance requiring cover removal, the covers must be securely re-locked with the special hexagonal screws to maintain the enclosure's integrity and explosion protection.

Product Alteration and Disposal:

No Modification: The product must not be modified. Any alteration could compromise its protection functionality and void Yokogawa's quality, performance, function, and safety guarantees.
Disposal: The product should be disposed of in accordance with local and national legislation and regulations, ensuring environmentally responsible practices and compliance with hazardous waste guidelines.

Documentation:

The manual emphasizes the importance of reading all applicable user manuals and general specifications (listed in IM 01E21A21-01Z1, "Read Me First") for comprehensive understanding of the product's operation and maintenance. These documents are available for download from the Yokogawa website or can be purchased from representatives.

YOKOGAWA AXG250 Specifications

General

Model	AXG250
Type	Electromagnetic Flowmeter
Nominal Size	250 mm
Fluid Temperature	-40 to 180°C (-40 to 356°F)
Process Connection	Flange
Communication	HART, BRAIN, FOUNDATION Fieldbus
Accuracy	±0.35% of rate or ±0.2% of rate (option)
Repeatability	±0.1% of rate
Fluid Conductivity	5 μS/cm or greater
Power Supply	100 to 240 V AC
Housing Material	Aluminum alloy
Lining Material	PFA, Hard Rubber
Electrode Material	Hastelloy, Titanium, Tantalum, Platinum
Ingress Protection	IP67, NEMA 4X
Explosion Proof	ATEX, FM, CSA, IECEx
Measurement Range	0 to 10 m/s
Output	4-20 mA