General Specifications

Transcription

1 General Specifications AXFA11 Magnetic Converter for Remote Flowtube The AXFA11 magnetic converter has been developed based on Yokogawa s decades long experience in magnetic flowmeters. The AXFA11 continues the tradition of high quality and reliability that has become synonymous with the Yokogawa name and in addition features an even higher level of performance and increased functionality. Retaining all the features and functions of the Admag series of converters, in addition the AXFA11 offers an enhanced dual frequency excitation method as an option for difficult applications as well as new diagnostics detect electrode coating. Combined with a flowtube utilizing the optional replaceable electrode design, the user benefits through the ability schedule maintenance for reduced process downtime and in turn a lower tal cost of ownership. FEATURES Optional enhanced dual frequency excitation method The user can select a 165 Hz high frequency component for very high concentration slurries ensure greater stability and quicker response. Minimum fluid conductivity of 1 S/cm With the newly designed AXF flow converter, improvements the input circuit now permit the measurement of fluids with conductivity as low as 1 S/cm. Diagnostics detect insulating coatings on the electrodes By constantly moniring the change in the impedance of the electrode circuit due the build-up of insulating coatings, the AXF converter will display 4 different levels of coating and provide an alarm function. Improved accuracy specification The standard performance specification for AXF is.35% of reading. Also available is an optional high accuracy calibration rated at.2% of reading. High speed pulse output The pulse output can be programmed up 1, pulses/ second for high-speed applications such as short batch processes. Easy Setup Parameters The most frequently used parameters are arranged in one location for easy, quick access. STANDARD SPECIFICATIONS Excitation Method: Standard dual frequency excitation: Size mm (.1 16 in.) Combined with AXF Remote Flowtube Enhanced dual frequency excitation: Size 25 2 mm (1. 8. in.) Combined with AXF Remote Flowtube (Option code HF2) Three line display with infrared switches The LCD indicar employs a large, backlit, full dot matrix display. One three lines are available and these can be programmed indicate a wide variety of display possibilities, including a bar graph for flow rate indication and a graphical representation of the extent which the electrodes may be coating. Infrared switches permit programming through the glass without the need open the enclosure cover. Yokogawa Corporation of America 2 Dart Road, Newnan, Georgia Tel.: Fax.: Copyright June 23 5th Edition June 27

2 Input Signal: Two Status Inputs: Dry contact Load resistance: 2 or less (ON), 1 kω or more (OFF) Signals: One Current : 4 2 ma DC (load resistance: 1 kω, including cable resistance) One Pulse : Transisr contact output (open collecr) Contact capacity: 3 V DC (OFF), 2 ma (ON) rate.1 1, pps (pulse/second) One Alarm : Transisr contact output (open collecr) Contact capacity: 3 V DC (OFF), 2 ma (ON) Two Status s: Transisr contact output (open collecr) Contact capacity: 3 V DC (OFF), 2 ma (ON) Communication Signals: BRAIN or HART communication signal (Superimposed on the 4 2 ma DC signal) Communication Line Conditions: Load Resistance: 25 6 Ω (including cable resistance) Distance from Power Line: 15 cm (6 in.) or more (Parallel wiring should be avoided.) BRAIN: Communication Distance: Up 2 km (5 miles), when polyethylene insulated PVC-sheathed cables (CEV cables) are used. Communication distance varies depending on the type of cable and wiring used. Load Resistance: 25 6 Ω including cable resistance Load Capacitance:.22 µf or less Load Inductance: 3.3 mh or less Input Impedance of Communicating Device: 1 kω or more (at 24 khz) HART: Communication Distance: Up 1.5 km (.9 mile), when using multiple twisted pair cables. Communication distance varies depending on the type of cable used. Load Resistance: 25 6 Ω including cable resistance Cable Length for Specific Applications: Use the following formula determine the cable length for specific applications: L (R C) (Cf 1,) C where: L = length in meters or feet R = resistance in Ω (including barrier resistance) C = cable capacitance in pf/m or pf/ft Cf = maximum shunt capacitance of receiving devices in pf/m or pf/ft Note: HART is a registered trademark of the HART Communication Foundation. 2 Data Security During Power Failure: Data (parameters, talizer value, etc.) srage by EEPROM. No back-up battery required. Indicar: Full dot-matrix LCD ( pixels) Lightning Protecr: A lightning protecr is built in the excitation current output, the current output, the signal common, and the pulse/alarm/status input and output terminals. If option code A is selected, the lightning protecr is built in the power terminals. Protection: IP67, NEMA4X Coating: Case and Cover: Polyurethane corrosion-resistant Coating Color: Silver gray (Munsell 3.2PB 7.4/ or its equivalent) Cover Mounting Screws: Polyurethane corrosion-resistant Coating Color: Mint green (Munsell 5.6BG 3.3/2.9 or its equivalent) Converter Material: Case and Cover: Aluminum alloy Mounting: 2-inch pipe, panel or surface mounting Electrical Connection: ANSI 1/2 NPT female Terminal Connection: M4 size screw terminal Grounding: Grounding resistance 1 Ω or less. When option code A is selected, Class C grounding (grounding resistance 1 Ω or less) shall be applied. Converter Interchange: In instances where the AXFA11 converter has been paired with a remote AXF flowtube and the converter is changed the AXFA14 converter, a flow calibration must be performed arrive at the meter facors for the new combination. The AXFA11 converter can be combined with remote flowtubes in sizes mm (.1 14 in.) Functions How Set Parameters: The indicar s LCD and three infra-red switches enable users set parameters without opening the case cover. Parameters can also be set by means of the HHT. Displayed Languages: English, Japanese, German, French, Italian, and Spanish. Instantaneous Flow Rate/Totalized Value Display Functions: The full dot-matrix LCD enables user selection of displays from one line three lines for: Instantaneous flow rate Instantaneous flow rate (%) Instantaneous flow rate (bar graph) Current output value (ma) All Rights Reserved. Copyright 23, Yokogawa Electric Corporation June 27

3 Totalized value Tag No. Results of electrode coating diagnostics Totalizer Display Function: For forward/reverse ranges, the talized values of the flow direction (forward or reverse) and the flow rate are displayed on the indicar gether with the units. The difference values between the forward and reverse flow rate talized values can be displayed. The reverse flow rate is not counted for a forward single range. Damping Time Constant: Time constant can be set from.1 second 2. seconds (63% response). Span Setting Function: Span flows can be set in units such as volume flow rate, mass flow rate, time, or flow rate value. The velocity unit can also be set. Volume Flow Rate Unit: kcf, cf, mcf, Mgal (US), kgal (US), gal (US), mgal (US), kbbl (US)*, bbl (US)*, mbbl (US)*, µbbl (US)*, Ml (megaliter), m 3, kl (kiloliter), l (liter), cm 3 Mass Flow Rate Unit (Density must be set.): klb (US), lb (US), t (n), kg, g Velocity Unit: ft, m (meter) Time Unit: s (sec), min, h (hour), d (day) * US Oil or US Beer can be selected Pulse : Scaled pulse can be output by setting a pulse weight. Pulse Width:Duty 5% or fixed pulse width (.5,.1,.5, 1, 2, 33, 5, 1 ms) can be selected. Rate:.1 1, pps (pulse/second) Multi-range Function: Status input enables the switching of up four ranges. For aumatic range switching, the status of up four ranges can be shown via status outputs and on the indicar. Forward and Reverse Flow Measurement Functions: Flows in both forward and reverse directions can be measured. The status is shown via status outputs and on the indicar during reverse flow measurement. Totalization Switch: If a talized value becomes equal or greater than the set value, a status output is generated. Preset Totalization: A parameter setting or status input enables a talized value be reset a preset value or zero. % Signal Lock: Status input fixes the instantaneous flow rate display, current output, pulse output, and flow rate talization %. Alarm Selection Function: Alarms are classified in System Alarms (hard failures), Process Alarms (such as Empty Pipe, Signal Overflow and Coating Alarm ), Setting Alarms, and Warnings. Whether alarms should be generated or not can be selected for each item. The current output generated for an alarm can be selected from among 2.4 ma or less, fixed 4 ma, 21.6 ma or more, or HOLD. Alarm : Alarms are generated only for the items selected via the Alarm Selection Function if relevant failures occur. Self Diagnostics Functions: If alarms are generated, details of the System Alarms, Process Alarms, Setting Alarms and Warnings are displayed gether with descriptions of countermeasures. Flow Upper/Lower Limit Alarms: If a flow rate is greater or smaller than the set value, this alarm is generated. In addition, two upper limits (H, HH) and two lower limits (L, LL) can be set. If a flow rate is greater or smaller than any of the set values, the status is output. Electrode Coating Diagnostics Function: This function enables moniring of the coating of insulating substances the electrodes. Depending on the status, users are notified by a warning or an alarm via status outputs. If replaceable electrodes are used, they can be removed and cleaned if coating occurs. STANDARD PERFORMANCE Reference Conditions: Similar BS EN 2914 (1993); ISO914 (1991) Fluid Temperature: +1 C +3 C (+5 F +86 F) Ambient Temperature: +2 C +3 C (+68 F +86 F) Warm-up Time: 3 min Straight runs: Upstream > 1 DN Downstream > 5 DN Properly grounded Properly centered (Combined with AXF Remote Flowtube, at reference conditions) Pulse : PFA/Ceramics Lining: Size mm (in.) 2.5 (.1) 15 (.5) 25 (1.) 2 (8.) 25 (1) 4 (16) Flow Velocity V m/s (ft/s) V.3 (1).3 V 1 (1) (33) 1. mm/s V.15 (.5).5 mm/s V.15 (.5).5 mm/s.15 V 1 (.5) (33) V.15 (.5).15 V 1 (.5) (33) Standard (Calibration code B).35% of Rate.35% of Rate.5 mm/s.35% of Rate Flow Velocity V m/s (ft/s).15 V 1.18 (.5) (3.3).2mm/s 1 V 1 (3.3) (33) High grade (Calibration code C).2 T1.EPS Enhanced dual frequency excitation (Option code HF2): Standard accuracy + 1 mm/s 3 All Rights Reserved. Copyright 23, Yokogawa Electric Corporation June 27

4 4 Size 2.5 mm (.1 in.) 15 mm (.5 in.) Pulse High Standard grade Size 25 mm (1. in.) 4 mm (16 in.) F1.EPS 1..8 Standard Pulse.6 High grade F2.EPS Polyurethane Lining Size mm (in.) 25 (1.) 4 (16) 5 (2) 1 (4) 11 (44) 2 (8) 22 (88) 26 (14) Flow Velocity Standard V m/s (ft/s) (Calibration code B) V.3 (1.) 1. mm/s.3 V 1 (1.) (33).35 V.3 (1.) 1.75 mm/s.3 V 1 (1.) (3.3) mm/s 1 V 1 (3.3) (33).35 V.3 (1.) 2.2 mm/s.3 V 1 (1.) (3.3) mm/s 1 V 1 (3.3) (33).5 V 1 (3.3) 8.5 mm/s 1 V 1 (3.3) (33).85 T2.EPS Enhanced dual frequency excitation (Option code HF2): Standard accuracy + 1 mm/s Size 25 mm (1. in.) 4 mm (16 in.) Pulse High Standard grade F3.EPS Size 5 mm (2 in.) 1 mm (4 in.) 1..8 Pulse High Standard grade F16-1.EPS Size 11 mm (44 in.) 2 mm (8 in.) 1..8 Pulse High Standard grade F16-2.EPS Size 22 mm (88 in.) 26 mm (14 in.) Pulse High Standard grade F16-3.EPS Enhanced dual frequency excitation (Combined with AXF Remote Flowtube Optional code HF2): Standard + 1 mm/s Current : Plus.5% of Span Repeatability:.1 (V 1 m/s (3.3 ft/s)) mm/s (V < 1 m/s (3.3 ft/s)) Maximum Power Consumption: Combined with AXF Remote Flowtube: 2 W Insulation Resistance (*1): 1 MΩ between power terminals and ground terminal at 5 V DC 1 MΩ between power terminals and each output/ status input terminal at 5 V DC 2 MΩ between ground terminal and each output/ status input terminal at 1 V DC 2 MΩ between output/status input terminals at 1 V DC All Rights Reserved. Copyright 23, Yokogawa Electric Corporation June 27

5 Withstand Voltage (*1): 135 V AC between power terminals and ground terminal for two seconds 16 V AC between excitation terminals and ground terminal for two seconds 2 V AC between excitation terminals and each output/status input terminal for two seconds CAUTION *1: Before performing the Insulation Resistance Test or the Voltage Breakdown Test, disconnect the ground terminal if the power terminal has a lightning protecr (option code A). Following the relevant test, wait for more than 1 seconds after the power supply has been turned off before removing the cover. After testing, be sure use a resistance for discharge and return the short bar its correct position. Screws must be tightened a rque of 1.18 N-m or more. After closing the cover, the power supply can be resred. Safety Requirement Standards: EN611 Altitude at installation site: Max. 2 m above sea level Installation category based on IEC11: Overvoltage category II ( II applies electrical equipment which is supplied from a fixed installation-like distribution board.) Pollution degree based on IEC11 Pollution degree 2 ( Pollution degree describes the degree which a solid, liquid, or gas which deteriorates dielectric strength or surface resistivity is adhering. 2 applies a normal indoor atmosphere.) EMC Conformity Standards: EN61326 EN61-3-2, EN AS/NZS 264 NORMAL OPERATING CONDITIONS Ambient Temperature: 4 C +6 C ( 4 F +14 F) Indicar s operating range: 2 C +6 C ( 4 F +14 F) Ambient Humidity: 1% Lengthy continuous operation at 95% or more is not recommended. Power Supply: Power supply code 1: AC specifications Rated power supply: 1 24 V AC, 5/6 Hz (Operating voltage range: V AC) DC specifications Rated power supply: 1 12 V DC (Operating voltage range: 9 13 V DC) Vibration Conditions: Level of vibration in conformity with IEC (SAMA ).5 G or less (frequency 5 Hz or less) ACCESSORIES Fuse (T2.5A, 25 V): 1 pc. *Time lag fuse Mounting bracket: 1 set MODEL AND SUFFIX CODE AXFA11 Magnetic Flowmeter Remote Converter: 5 Model Suffix Code Description AXFA11 Use G Magnetic Flowmeter Remote Converter General-Purpose Use For AXF Remote Flowtube of size mm (.1 in. 14 in.) Signal and Communication Power Supply Electrical Connections Indicar -D -E ma DC, BRAIN Communication 4 2 ma DC, HART Communication 1 V 24 V AC or 1 12 V DC ANSI 1/2 NPT female 1 With Indicar / Option code (See the Table of Optional Specifications) T3.EPS Signal Cable: Model AXFC Note: The cable is constructed with double shielding over the two conducrs, and uses heat-resistant vinyl as the outer covering material. Finished diameter: 1.5 mm (.413 in.) Maximum temperature: +8 C (+176 F) Unneccessary order the above cable for submersible type flowtube because the flowtube is wired with 3 m (98 ft) cable. Excitation cable is supplied by the cusmer Recommended Excitation Cable: Use Polyvinyl chloride insulated and sheathed control cable or Polyvinyl chloride insulated and sheathed portable power cables or equivalents. Outer Diameter: mm ( in.) Nominal Cross Section: mm 2 Note: Avoid locations with high vibration (with a vibration frequency of 5 Hz or more), which may cause damage the equipment. All Rights Reserved. Copyright 23, Yokogawa Electric Corporation June 27

6 6 OPTIONAL SPECIFICATIONS FOR AXFA11 REMOTE CONVERTER Item Specification Code Lightning Protecr A lightning protecr is built in the power terminals. Burn Out Down NAMUR NE43 Compliance Active Pulse Stainless Steel Mounting Bracket AM11 Replacement Bracket Stainless Steel Tag Plate Epoxy Resin Coating The output level is set ma during a CPU failure and is set 2.4 ma or less during an alarm. Standard products are delivered with a setting 25 ma during a CPU failure and 21.6 ma or more during an alarm. signal limits: ma Failure alarm down-scale: The output level is set ma during a CPU failure and is set 2.4 ma ( 1%) or less during an alarm. Failure alarm up-scale. The output level is set 25 ma during a CPU failure and is set 21.6 ma (11%) or more during an alarm. Active pulses are output in order drive an external electromagnetic or electronic counter directly using the converter s internal power supply. (Nullfies the standard transisr contact pulse output.) voltage: 24 V DC ±2% Pulse specifications: The drive current of 3 15 ma Pulse rate:.1 2 pps (pulse/second); Pulse width: 2, 33, 5, or 1 ms Provided with a JIS SUS34 (AISI 34 SS/EN equivalent) stainless steel mounting bracket in lieu of the standard carbon steel bracket. Provided with a special mounting bracket for replacing an AM11 converter with an AXFA11. Screwed JIS SUS34 (AISI 34 SS/EN equivalent) stainless steel tag plate. Choose this option when an SS tag plate is required in addition the standard nameplate with the tag number inscribed on it. Epoxy resin coating instead of standard polyurethane resin coating. The color is same as standard type. CSA Mark CSA Mark for general purpose AXF converters and flow tubes. CGP T5.EPS Terminal Configuration I+ I CURRENT OUT SO1+ SO2+ COM STATUS OUT AL+ AL C SA A B SB ALARM OUT SIGNAL SHORT BAR N/ L/+ POWER SUPPLY EX1 EX2 EXCIT ATION P+ P SI1+ SI2+ COM PULSE OUT STATUS IN T6.EPS Terminal Wiring Terminal Symbols SIGNAL ALARM OUT STATUS OUT CURRENT OUT C SA A B SB AL+ AL- SO1+ SO2+ COM I+ I- Description Flow signal input Alarm output Status output (Two output) Current output 4 2mA DC Terminal Symbols STATUS IN PULSE OUT EXCITATION POWER SUPPLY Sl1+ Sl2+ COM P+ P- EX1 EX2 L /+ N/- Description Status input (Two input) Pulse output Excitation current output Power supply Functional grounding Protective grounding (Outside of the terminal) T7.EPS All Rights Reserved. Copyright 23, Yokogawa Electric Corporation June 27

7 7 EXTERNAL DIMENSIONS Remote Converter AXFA11 Pipe mounting 18(7.9) 4-ø6 Hole (Surface mounting hole) 12(4.72) Unit: mm (approx. inch) 65 (2.56) 21(8.27) 194(7.64) (2) (2) (2) (2) (67) (2.64) 24 (.94) (67) (2.64) 29 (1.14) 49 (1.93) Weight 3.2 kg (7.1 lb) Panel mounting 1 1(.4.39) (Panel thickness) 1(3.94) Mounting Screw (M6 1(3.94)) 172(6.77) Panel cuut 23(7.99) 182(7.17) 15 (4.13) R3 MAX Surface mounting *1 Mounting Screw(M6) 18(.71) 65 (2.56) *1: These screws must be provided by user. 194(7.64) 62 (2.44) T8.EPS Remote Converter AXFA11 /RK (AM11 Replacement Bracket) Pipe mounting 133.5(5.26) (2) (2) (2) (2) 49 (1.93) 29 (1.14) 24 (.94) (8.5) (3.17) T9.EPS (8.5) (3.17) Bracket for replacement T1.EPS All Rights Reserved. Copyright 23, Yokogawa Electric Corporation June 27

8 8 Dedicated Signal Cable AXFC-4-L A E B A B 55(2.17) Unit: mm (approx. inch) (5.91) 8(.31)Max (5.91) C G 9(3.54) 9(3.54) F SA SB C (WHITE) (BLACK) (RED) D (WHITE) (BLACK) (RED) CONVERTER 8(.31)Max. 2(.79) L(SPECIFIED LENGTH) AXFC ø1.5(.41) FLOW TUBE Model AXFC-4 D E F G 7(2.76) 25(.98) 5(1.97) 6(2.36) AXFC--L F4.EPS CAP ø1.5(.41) AXFC L(SPECIFIED LENGTH)+34(13.39)(LENGTH for END TREATMENT) F5.EPS ORDERING INFORMATION Note 1: When ordering a remote flowtube and a remote converter, specify the flow span, unit, pulse weight, and talizer display pulse weight. Note 2: Some options, if ordered, require the relevant specifications be supplied. 1. Model, specification and option codes. 2. Tag number Each tag number can be specified up 16 characters in a combination of letters (upper or lower case), numbers, - and.. If specified, the tag number is inscribed on the product s name plate and tag plate (if optional code SCT is selected). For HART procol, up 8 characters can be specified. All Rights Reserved. Copyright 23, Yokogawa Electric Corporation June 27