Yokogawa Corporation of America2 Dart Road, Newnan, Georgia U.S.A. 30265
GS 04Q01B01-01E©Copyright 2018
3rd Edition
GeneralSpecificationsGS 04Q01B01-01E-A
Yokogawa Y-Flow® YFFC Orifice Flow Computer
OverviewYokogawa’s low power orifice flow computer offers flexible I/O points and superior data collection with a wide range of connectivity options. By combining Yokogawa’s EJX910A multivariable transmitter (DP and SP) and Y-Flow® YRTU, the accuracy and stability specifications make the Y-flow a superior product with market. Whether you are measuring gas flow for custody transfer or need wellhead control and monitoring, Yokogawa offers both the performance and stability required in the most rigorous environment.
• API Chapter 21 compliancy• AGA 3 & 5 capability• AGA 8 (Detailed & Gross Methods I & II) & NX-19• Single and Bi-Directional (total vol. + avg. vol.)
measurement• Multiple run capability • Solar panel with battery back-up or AC powered with
battery back-up• Wide array of wireless connectivity options (Cellular,
wireless radio and satellite)• Pole mount, wall mount or direct mount options• Wide variety of enclosure size options
Yokogawa EJX910A Multivariable Transmitter Accuracy SpecificationsSpecifications for the EJX910A are condensed for the purpose of this document. Please see GS01C25R01-01EN for more detailed information.
The EJX910A uses the established DPharp pressure sensor technology that allows for simultaneous measurement of differential pressure and static pressure (absolute or gauge) from one sensor. Out of all the Yokogawa pressure transmitters, the EJX910A has the best accuracy for combined DP and SP measurement, which makes it an excellent choice for flow calculations with a YRTU.
Reference Accuracy
(Includes terminal-based linearity, hysteresis, and repeatability)
• DP Up to ±0.04% of span standard• SP ±0.1% of span (Absolute)
Long Term Stability (All normal operating conditions, including overpressure effects)
• DP ±0.1% of URL per 10 years Turndown• DP 200:1• SP 25:1
Measurement Span/Range DP inH20 SP psia
MSpan 2 to 400 145 to 3300
Range -400 to 400 0 to 3300
HSpan -10 to 2000 145 to 3300
Range -2000 to 2000 0 to 3300
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All Rights Reserved. Copyright © 2016, Yokogawa Electric Corporation. Subject to change without notice. GS 04Q01B01-01E©Copyright 2018
3rd Edition
YFFC Technical SpecificationInput Power Supply
• Input Power: 12-30 VDC• One (1) power supply/rechargeable battery input with
screw terminals• Integrated solar panel charger supporting up to 20W solar
panel
Power Monitoring and Battery Backup • Supply voltage monitoring through A/D with low supply
voltage alarm• 3.6 VDC lithium ion battery backup for database, history,
audit trial, time/date and RAM• 20W on board battery charger, 90W maximum
• 32AH solar panel battery (optional)
Performance• Processor: ARM Dual Core 32 bit @ 48 Mhz• SRAM Memory: 32MB• SPI Flash Memory: 32MB
• A/D: 16-bit with optional HART filtering
Display Options• 4 line alphanumeric display with push button keypad
Enclosure ARCA-JIC Series NEMA 4X Non-Metallic, UL 50
Compliant. Designed to NEMA 3R after milling and external
mechanisms are added. Stainless steel lockable latch & continuous hinge with FIP
door gasket.
cULus Approval: E488925 (Type 1)
Enclosure Vibration Test Sweep frequency endurance test on x,y, and z axis from
10 Hz-2000Hz; with Endurance Dwell test for 15 mins at 0.5G. Based on IEC60654-3.
Operating Temperature• -40C to 70C (-40F to 160F)
Communications Options• Standard: Two (2) Serial RS-232/RS-485• One (1) Ethernet port, (1) USB Host Port, (1) USB Device
Port• Wireless Communication: Cellular (CDMA/GSM), Radio
(spread spectrum licensed & unlicensed frequency), Satellite (LEO &GEO)
• Protocols: MODBUS TCP/IP, MODBUS Serial, ERC Hex ASCII (native)
Input and Output (I/O)• Analog Inputs: Four (4) universal analog inputs, 0-5VDC or
4-20mA (Requires 250 ohm resistor)• RTD Inputs: One (1) temperature probe• Digital Input/Output: Two (2) form A/C pulse input, Two (2)
form C relays, Two (2) DI, Two (2) DO
Optional I/O Extender Board• Two (2) Serial RS-232/RS-485• Four (4) universal analog inputs• One (1) analog output• One (1) RTD temperature probe• Two (2) form A/C pulse input• Three (3) DI, Three (3) DO• Opto 22 G4 Voltage Signal Conditioner
Approval• UL and cUL Class I Div II Group A,B,C,D
Software• Field Manager
Warranty• 4 years limited warranty
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All Rights Reserved. Copyright © 2016, Yokogawa Electric Corporation. Subject to change without notice. GS 04Q01B01-01E©Copyright 2018
3rd Edition
Model Codes
Model
R/YFFC EFM- Flow Computer
Multi-variable Transmitter; Range
-A7 400“ 0.04% 3300G 0.1%
-A8 +/- 400“ 0.04% 3300G 0.1%
-A9 2000“ 0.04% 3300G 0.1%
-B1 +/- 2000“ 0.04% 3300G 0.1%
Temp 1
X1 None
A1 6‘
A2 10‘
A3 15‘
Mounting
X1 None
A1 Pole Mount
A2 Direct Mount
A3 Wall Mount
LCD Display
X1 None
A2 4 Line
A3 Keypad & 4 Line
Laptop Connection
X1 None
A1 RS232 (MS)
A2 USB
A3 Ethernet
Com Gear 1
-X1 None
-A1 Freewave FGR
-A2 Freewave MM2
-A3 Freewave MM2-P-T
-A9 MDS EL805
-B1 Iridium 9602
-B2 Multi-Tech V
-B3 Multi-Tech A
-B5 MDS Kit
-B6 Freewave FGR Kit
Connection 1
X1 None
A1 Omni (Stubby)
A2 Bulkhead
Ext Serial Port
X1 None
A1 1 ESP
A2 2 ESP
Com Gear 2
X1 None
A1 Freewave FGR
A2 Freewave MM2
A3 Freewave MM2-P-T
A9 MDS EL805
B1 Iridium 9602
B2 Multi-Tech V
B3 Multi-Tech A
B5 MDS Kit
B6 Freewave FGR Kit
Connection 2
X1 None
A1 Omni (Stubby)
A2 Bulkhead
E3 Processor
-A3 Full (Both) E3UES
Relays; Form C
X1 None
A1 (1) Form C
A2 (2) Form C
Battery (with tray, wire & fuse) Note
X1 None
A2 7AH
A3 17AH 1
A4 32AH 2
Sample MS Code:R/YFFC-A7A1A1A2A2-X1X1X1X1X1-A3A1A2X1X1-X1X1A1X1X1-X1A4/X1
Notes:Note 1: 17 Ah Battery requires minimum 12x10x6 enclosureNote 2: 32 Ah Battery requires minimum 14x12x7 enclosureNote 3: Increase the enclosure size by 2
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All Rights Reserved. Copyright © 2016, Yokogawa Electric Corporation. Subject to change without notice. GS 04Q01B01-01E©Copyright 2018
3rd Edition
Solar
X1 Not Attached
Pressure 1
X1 None
A6 50G
A8 200G
B2 500G
B5 1500G
B7 3000G
C2 150HG
C4 300HG
Pressure 2
-X1 None
-A6 50G
-A8 200G
-B2 500G
-B5 1500G
-B7 3000G
-C2 150HG
-C4 300HG
Analog Out
X1 None
A1 Analog Output (3 chan)
SPM Signal Protection Module
X1 None
A1 (4) 8 VDC
A2 (4) 35 VDC
A4 8 & 35
A6 35 & 35
Sample MS Code:R/YFFC-A7A1A1A2A2-X1X1X1X1X1-A3A1A2X1X1-X1X1A1X1X1-X1A4/X1
Notes:Note 1: 17 Ah Battery requires minimum 12x10x6 enclosureNote 2: 32 Ah Battery requires minimum 14x12x7 enclosureNote 3: Increase the enclosure size by 2
A8 3 Modules - 8 VDC 3
A9 3 Modules - 2x8 ; 1x35 VDC 3
B2 3 Modules - 1x8 ; 2x35 VDC 3
B4 3 Modules - 35 VDC 3
Extender
X1 None
A1 (4) 8 VDC
Temp 2
X1 None
A1 6‘
A2 10‘
A3 15‘
Optos
-X1 None
-A1 Red (DC Out)
-A2 Wht (DC In)
-A3 Yel (AC In)
-A4 Blk (AC Out)
-A5 Red \ Red
-A6 Red \ White
-A7 White \ White
Enclosure; Dimensions in Inches
A4 10x10x6
A5 12x10x6
A6 14x12x7
A7 16x14x8
A8 18x16x10
Power Option
/X1 None
Y-Flow Accessories
M1274XE RS- 232 Serial PC Cable; 10 ft
M1274XF RS- 232 Serial PC Cable; 15 ft
M1274XG RS- 232 Serial PC Cable; 25 ft
M1274XH USB to Serial Adapter Cable
M1274XJ USB 2.0 A-Male to B-Male 10 ft
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All Rights Reserved. Copyright © 2016, Yokogawa Electric Corporation. Subject to change without notice. GS 04Q01B01-01E©Copyright 2018
3rd Edition
YFFC Dimensional Drawing
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All Rights Reserved. Copyright © 2016, Yokogawa Electric Corporation. Subject to change without notice. GS 04Q01B01-01E©Copyright 2018
3rd Edition
E3 Processor Board Wiring
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All Rights Reserved. Copyright © 2016, Yokogawa Electric Corporation. Subject to change without notice. GS 04Q01B01-01E©Copyright 2018
3rd Edition
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