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- digitalYEWFLO Fieldbus Type Vortex Flowmeter
digitalYEWFLO Fieldbus Type Vortex Flowmeter
Yokogawa’s proprietary filter (SSP) for digital signal processing analyzes vortex signals and automatically selects the optimum settings for the best possible measurement.
Product Information
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| Fieldbus is a two-way digital communication system. It is a revolutionary technology for configuring instrumentation control systems and a promising successor to the standard 4 to 20mA analog communication used in most field instruments today. By combining Fieldbus communications with digitalYEWFLO's ability to simultaneously output analog and pulse readings for flowrate, temperature, mass flowrate and total flowrate, a greater variety of powerful flow control applications are possible. |
Features: digitalYEWFLO Fieldbus Type Vortex Flowmeter
| - | Interoperability (ITK 5.0.1) | |
| FOUNDATION Fieldbus specifications (ITK 5.0.1) grant the interoperability of the field instruments. | ||
| - | Reduction of instrumentation cost | |
| The multi-drop wiring on the Fieldbus communication line contributes to the reduction of wiring cost. | ||
| - | Mass flow calculation | |
| Arithmetic (AR) function block expands the mass flow calculation function for the saturated steam, superheated steam, gases and natural gas by using external pressure/temperature input (/MV:internal temperature input) with a high accuracy. Additionally, in combination with DTM* brings to the high accurate mass flow calculation output, ex. natural gas process. | ||
| - | User-friendliness | |
| The common function block of field devices have the same operability, because of their common specification. The individual device setting (Transducer Block parameter setting) can be done simply by executing METHOD. | ||
| - | Independent flow and temperature calculations (multi-variable type: option) | |
| The multi-variable type (/MV: option) of digitalYEWFLO separately outputs flowrate output (AI1) and temperature output (AI2) . Two DI function blocks output the limit signal output both flowrate and temperature. | ||
| - | Advanced self-diagnostics | |
| The digitalYEWFLO has advanced self-diagnostics which can predict and identify anomalies in the process conditions, such as high pipeline vibration and abnormal flow. Also, the Fieldbus type digitalYEWFLO supports various alarm functions, such as high/low-limit alarms and alerts of block errors, based on the FOUNDATION Fieldbus specification. | ||
| - | Link Master function : BASIC at factory setting. | |
| digitalYEWFLO Fieldbus models support the Link Master function. This function enables backup of network manager and local control only by field devices. | ||
| - | PID function block (option) | |
| A PID function block (with the I-PD control algorithm) enables the field device to control the process. | ||
| - | Software download function (option) | |
| Software download function permits to update DY software via a FOUNDATION fieldbus. Typical use of this function is to add new features such as function blocks and diagnostics to existing devices. | ||
| * | DTM (Device Type Manager): the application which defines the Graphical User Interface (GUI) specific to the device. | |
Specifications: digitalYEWFLO Fieldbus Type Vortex Flowmeter
| All DY and DYA models are Fieldbus enabled (output code: F) and conform to the EN61326-1 Class A, Table 2 (For use in industrial locations), EN61326-2-3, EN55011 Class A Group 1 EMC standards |
| digitalYEWFLO Fieldbus Type Vortex Flowmeter | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Output signals | Digital communication signals compliant with the FOUNDATION™ fieldbus protocol | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Supply voltage | 9 to 32 V DC for general-purpose and flameproof types 9 to 24 V DC for intrinsically safe type (Entity model) 9 to 17.5 V DC for intrinsically safe type (FISCO model) |
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| Communications line | Supply voltage: 9 to 32 V DC Supply current: 15mA (maximum) |
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| Function specifications |
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| Hazardous area classifications | TIIS / FM / CENELEC / CSA / SAA | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Please see Features of digitalYEWFLO for common items. |
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