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Secure Dual Stage Batch Controller
The 515-BT01 application is a secure dual stage batch controller for reliable and accurate delivery of preset quantities of petroleum and other products. The frequency flow input can accept a quadrature signal for ISO 6551 level B pulse security. The temperature and/or density inputs allow for volume correction to reference conditions.
The instrument can be set to prompt for a valid ID-Tag and/or a Permissive input before a delivery can be commenced. The ID-Tag number is stored as a part of the logged transaction record and can be used to link deliveries to external databases.
A selection of fluid types include a range of crude and refined petroleum fluids. Temperature compensation for other general fluids is also available via thermal expansion coefficient or a user defined table.
Calculations
The gross volume total and flow rate are derived from accurately measured frequency and the number of recieved pulses:
• Volume = pulses/k-factor
• Volume flow = frequency/k-factor
The volume correction calculations are based on the ASTM D1250-04 and API Table 54 standard for the following products:
• Crude Oils
• Lube Oils
• Refined Products
• Light Hydrocarbon Liquids (LPG)
Volume correction for other fluids can be calculated by the following means:
• General Coefficient of Expansion
• Preprogrammed User Table
Features
Volume correction for petroleum products, general and user-defined fluids
Accepts temperature and/or density inputs for volume correction
Allows quadrature flow input to ISO 6551 level B pulse security
Allows batching on Gross, Net, or Mass total
Single or Dual stage control
Preset, manual On-Off modes or upload modes
Easy access to batch and density presets
No-flow, leakage and overflow error detection
Remote RUN/STOP/RESET
Allows for permissive with prompt
ID Tag Validation, security and storage
Allows for non-linear correction
Storage of 1000 transactions with time and date stamp
Selection of second language and user tags
Selectable protocols on serial ports including Modbus RTU and Printer output
Backlit display with LCD backup Typical plant diagram
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