Flow Computers
- Natural Gas
- Industrial Gases
- Steam
- Open Channel
- Petroleum
- Process Fluids
Energy Computers
- Heating Systems
- Chilled Water
- Thermal Fluids
Blending
- In line Blending and Ratio Control
Flow Rate Control
- Flow rate control (with or without batching)
Batch Control
- Batching
- Filling IBCs and Drums
- Bottle Filling
Intelligent Interface
- Flow to SCADA & DCS systems
Tank Level and Contents
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Features
- Compatible with most flow and level devices
- Large backlit LCD display
- RS 232 with optional
additional 485 port*
- Modbus RTU
- Logic inputs
- Up to four relay outputs
- Two isolated 4 –20 mA or pulse outputs
- Real time clock datalogging
- Optional ATEX approved enclosure
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Overview
Take one clever instrument, create a simple yet foolproof method of configuring it and then blend with a select range of downloadable flow, process and level applications.
The result is the most user friendly, flexible, easy to install flow and level computer you have ever used. |
with temperature compensation for engines and boilers
with tuneable P+I algorithm.
and vessel filling with one or two stage valves.
with intelligent PI control desgned for flow applications
for heating and chilling systems; uses IAPWS-IF97 for the water properties and is also suitable for glycol, brine and common thermal fluids.
flows to suit a wide range of channels, flumes and weirs
measurement with linearization for non linear tanks. |
Functionality
using turbine, orifice and other devices in accordance with either AGA-3 or ISO5167. Compressibility then calculated using AGA-8 or SGERG.
with frequency or analogue input, linear to flow or in accordance with ISO5167. Calculations in accordance with IAPWS-IF97 for superheated steam, saturated steam and saturated water.
using ideal gas law or Redlich-Kwong equations.
providing rate, total and cumulative total.
using the latest revised ASTM standards, includes crude oil, refined fuel oils LPG and lubricants. |
The front panel display shows the current values of the input variables and the results of the calculations. A list of the variables for this application and their type (total or rate) is shown at the end of this document along with the available units of measurement. The instrument can be supplied with a real-time clock for data logging of over 1000 entries of the variables as displayed on the main menu.
There are three communication ports available as follows:
• RS-232 port (standard)
• RS-485 port (advanced option)
• Infra-red port (on front panel)
The ports are available for remote data reading, printouts and for initial application loading of the instrument.
The opto-isolated outputs can retransmit any main menu variable. The type of output is determined by the nature of the assigned variable.
Totals are output as pulses andrates are output as 4-20mA signals. One output is standard, a second output is available as an option.
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Hazardous Areas……..No Worries
All 500 series instruments are suitable for installation in Zone 1 explosion proof environments to ATEX requirements
Instruments can be fully configrured and operated whilst in the hazardous area
Instruments can be password protected to prevent against unauthorized in-field changes
Batch Control Made Easy !
10 pre-selectable batch quantities
Any Flowmeter type (mass or volume)
Real time logging built-in
No flow, leakage and overflow error
Modbus communication allows remote batch set and reporting
By integrating an intelligent PI control function into the 515, it’s possible to precisely control the flow rate, to control flow rates whilst batching and to ratio blend two fluids together. Clever functions like holding the output value on start stop and batching applications means that even small volumes can be blended without problems.
Ratio total trim correction means that batched quantities are always perfectly in ratio producing far higher quality product, plus with the datalogging facility, you have a detailed audit trail.
Net Oil Flow Computer
The 515 FN01 application calculates the net oil content in petroleum production fluids containing water. The net oil volume is corrected to a reference temperature according to ASTM D1250-04.
The instrument uses the frequency signal from a mass flowmeter along with temperature and density analog inputs. Reference densities for the oil and water are used in conjunction with live density and temperature values to determine the water cut.
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Relay Outputs
The relay alarms can be assigned to any of the main menu variables of a rate type. The alarms can be fully configured including hysteresis. Two relays are standard with an additional two available in the advanced option.
The 500 Series is being used more often in conjunction with SCADA systems and reading the unused analog 4-20mA inputs via Modbus is a convenient way to get access to extra data.
Similarly, the logic inputs can be used the same way providing valuable data like whether the pump is running or locked out, the status of valves etc
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Specifications General
Specifications are subject to change without notice.
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Operating Environment
Temperature
Humidity
Power Supply
Consumption
Protection
Dimensions |
-20°C to +60°C (conformal coating)
+5°C to +40°C (no coating)
0 to 95% non condensing (conformal coating)
5% to 85% non condensing (no coating)
95...135 V AC, 190...260 V AC or 12...28 V DC
Typically 6W
Sealed to IP65 (Nema 4X) when panel mounted
147 x 74 x 167mm (W x H x D) |
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Display
Type
Digits
Characters
LCD Backup |
Backlit LCD with 7- digit numeric display and
11-character alphanumeric display.
15.5mm high
6mm high
Last data visible for 15min after power down |
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Non-volatile Memory
Retention
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> 30 years |
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Approval
Interference
Enclosure |
CE compliance
ATEX, FM, CSA and SAA approved enclosures available for hazardous areas |
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Real Time Clock (Optional)
Battery Type
Battery Life |
3 volts Lithium button cell (CR2032)
5 years (typical) |
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Frequency Input (General)
Range
Update Time
Cutoff frequency
Configuration
Non-linarity |
0 to 10kHz
0.3 sec
Programmable (default at 0.25Hz)
Pulse, coil or NPS input
Up to 10 correction points |
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Pulse
Signal Type
Threshold |
CMOS, TTL, open collector, reed switch
1.3 volts |
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Coil
Signal Type |
Turbine and sine wave, 15mV p-p minimum |
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NPS
Signal Type |
NPS sensor to Namur standard |
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Analog Inputs (General)
Update Time
Configuration
Non-linearity |
< 1.0 sec
RTD, 4-20mA, 0-5V and 1-5V input
Up to 20 correction points (flow inputs |
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RTD Input
Sensor Type
Range
Accuracy |
PT100 to IEC 751, Four Wire
-100°C to 300°C
0.1°C typical |
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4-20mA Input
Accuracy |
0.05% full scale (20°C) |
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0-1 or 1-5 Volts Input
Accuracy |
0.05% full scale (20°C |
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Logic Inputs
Signal Type |
CMOS, TTL, open collector, reed switch |
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Relay Output
No. of Outputs
Voltage |
2 relays plus 2 optional relays
250 volts AC, 30 volts DC maximum. 3A maximum |
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Communication Port
Ports
Protocols |
RS-232 port, RS-485 port (optional), Infra-red port
ASCII, Modbus RTU, Printer (RS232) |
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Transducer Supply
Voltage
Current
Protection |
8 to 24 volts DC, programmable
70mA @ 24V, 120mA @ 12V maximum
Power limited output |
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Isolated Output
No. of Outputs
Configuration |
1 configurable output (plus 1 optional)
pulse or 4-20mA output |
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Pulse Output
Signal Type
Switching
Width |
Open collector
200mA, 30 volts DC maximum
Programmable: 10, 20, 50, 100, 200 or 500ms |
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4-20mA Outpu
Supply
Resolution |
9 to 30 volts DC external
0.05% full scale
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