YOKOGAWA ADMAG TI Series AXW Electromagnetic Flow Meter (25-450mm) Installation and Operation

YOKOGAWA ADMAG TI Series AXW Electromagnetic Flow Meter (25-450mm) Installation and Operation

Basic Information and Security Standards

1. Document scope and supporting materials

Applicable equipment: AXW series electromagnetic flowmeter (integrated+remote sensor), paired with AXW4A/AXG1A/AXFA11G remote transmitters, supporting multiple communication protocols such as BRAN, HART, Modbus, FOUNDATION Fieldbus, PROFIBUS PA, EtherNet/IP, etc.

2. Core security principles

The document clearly identifies risks through four levels of Warning, Caution, Important Notice, and NOTE, and the key safety requirements are as follows:

Personnel qualifications: Installation, wiring, and maintenance must be carried out by professional engineers or skilled personnel, and ordinary operators are prohibited from participating.

Electrical safety: Power off and wait for at least 20 minutes before wiring; The power supply voltage needs to match the rated value of the equipment (AC 100-240V/24V, DC 100-120V/24V); Unused cable entrances need to be sealed with dedicated plugs to avoid failure of protection level.

Explosion proof requirements: Explosion proof equipment requires additional reading of the corresponding explosion-proof manual (such as ATEX/IECEx/NEPSI certified version), and grounding must comply with the requirements of the explosion-proof system to avoid the generation of mechanical sparks.

Static electricity protection: Equipment components are susceptible to static electricity damage, and anti-static wristbands should be used during operation. Direct contact with circuit components is prohibited.

Environmental restrictions: ambient temperature -10~60 ℃ (refer to special manual for explosion-proof type), humidity 0~100% (avoid long-term high humidity of 95% or more); Avoid corrosive gases (such as H ₂ S, SO ₓ), strong vibrations, and direct sunlight.

Reception and Storage

1. Arrival inspection

Appearance and accessory verification: Upon arrival, visual inspection of transportation damage is required to confirm the standard accessories according to the model (as shown in the table below). If missing, please contact Yokogawa in a timely manner.

|Equipment type | Standard accessories (example) | Quantity|

|Integrated flowmeter | centering device, plug, cable sealing sleeve | 1 set/0-2 pieces/0-3 pieces|

|Remote Sensor | Centering Device, Cable Sealing Sleeve, Special Double Headed Bolt (Specific Model) | 1 set/0-2 pieces/2 pieces|

|Remote transmitter (such as AXW4A) | Installation bracket, plug, cable sealing sleeve | 1 set/0-2 pieces/0-5 pieces|

Model and specification confirmation: Verify the model, serial number, instrument coefficient, fluid specifications, etc. through the equipment nameplate (as shown in Figure 2.1-2.5) to ensure consistency with the order; The nameplate information can also be viewed through the parameter menu (refer to the corresponding communication type manual).

2. Storage requirements

Packaging: The original packaging should be retained for long-term storage, and the PTFE lining model should retain the accompanying particle board until it is removed before installation.

Environment: Storage temperature -10~70 ℃, humidity 5~80% RH (non condensing), preferably 25 ℃, 65% RH environment; Avoid exposure to rain, vibration, and impact, and install as soon as possible after transportation to the installation site to prevent rainwater infiltration.

Installation process and requirements

1. Preparation before installation: pipeline design principles

Requirements for straight pipe section: It must meet JIS B 7554 standard. The length of the upstream straight pipe section should be 5D~10D (D is the sensor diameter) depending on the upstream pipe fittings, and 2D~3D (as shown in Figure 3.1.1) downstream to avoid uneven flow distribution affecting measurement.

Fluid conditions: The pipeline should always be filled with liquid (when installed vertically, the fluid flows from bottom to top) to avoid bubbles (valves should be installed downstream first to prevent negative pressure from generating bubbles); The injection point of chemical agents should be downstream of the flow meter. If it is necessary to reserve a straight pipe section of more than 50D upstream to ensure uniform mixing.

Anti interference: Keep away from power equipment such as motors and transformers; The distance between multiple electromagnetic flow meters should be ≥ 5D (taking the larger diameter D); To avoid pipeline misalignment and tilting (as shown in Figure 3.2.2), new pipelines need to be flushed to remove foreign objects such as welding slag and sawdust.

2. Installation of sensors and transmitters

(1) Integrated/remote sensor installation

Classification installation:

**Wafer type (25-200mm) * *: It is necessary to use a centering device to ensure concentricity, and the bolt torque should be based on the flange grade (such as JIS 10K, ASME Class 150) according to Table 3.3.2; 50mm/2-inch submersible JIS 20K wafer requires special double headed bolts.

Flange type (25-450mm): The gasket needs to be provided by the user (except in special circumstances), and the use of wrapped gaskets is prohibited; Attention should be paid to avoiding negative pressure for PTFE lining models, and uneven force on the lining should be prevented during installation (refer to Table 3.3.6-3.3.7 for torque values).