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Fluidwell F124 - Ratio Controller |
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Features
- Controls the desired ratio between a main and an additive flow.
- Displays flow rate A and B, alarms, ratio set point and actual ratio in percentage.
- Large 17mm (0.67") digits.
- Safety mode input to place the controller in a safe predefined position.
- Analog output to control a valve.
- Two alarm values can be entered in %: low and high ratio alarm.
- Bumpless switching between 3 operation modes: Hand, Local and Ratio.
- Green LED-backlight.
- Very compact design for panel mount, wall mount or field mount applications.
- Operational temperature -30 up to 80°C (-22 up to 178°F).
- Intrinsically Safe
 II 1 GD EEx ia IIB/IIC T4 T100°C.
- Explosion/flame proof II 2 GD EEx d IIB T5.
- Full Modbus communication RS232/485/TTL.
- Loop powered, 8 - 24V AC / DC or 115 - 230V AC power supply
Signal Input - Flow
- Reed-switch.
- NAMUR.
- NPN/PNP pulse.
- Sine wave (coil).
- Active pulse signals
Signal Input - Status
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Applications
In-line blending can be significantly affected by its control operations. The F124 ratio controller will show a strong influence of maintaining a good and constant quality of products and saves money on the blending components.
Signal Output
- (0)4-20mA / 0 - 10V DC control output.
- Two alarm outputs for low and high flow rate
alarm.
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OVERVIEW
Introduction
The F124 has been designed to ensure that two flows are kept at the same ratio even if the flows are changing. The F124 is a key product of the Fluidwell Process Controller family and is the alternative to replace existing pneumatic controllers in local control loops.
Operational
There are three operation modes:
Hand: the control output can be manually changed, there is no loop connection.
Local: the set point can be set and/or changed, corresponding with the process value of flow B.
Ratio: (normal operation) set the desired ratio in %, the process value corresponds with flow B/A.
Display
The display has large 17mm segments which show flowrate A and B, desired ratio and actual ratio. On-screen engineering units are easily configured from a comprehensive selection.
Configuration
All configuration settings are accessed via a simple operator menu which can be passcode protected. Each setting is clearly indicated with an alphanumerical description, therefore avoiding confusing abbreviations and baffling codes. Once familiar with one F-series product, you will be able to program all models in the series without a manual. All settings are safely stored in EEPROM memory in the event of sudden power loss.
Analog Output Signal
The valve of the additive flow is controlled via the (0)4-20mA or 0 - 10V DC output signal. The output signal is updated ten times per second. The output signal can be passive, active or isolated where the passive output type will loop power the F124 as well.
Signal Input
The F124 will accept most pulse input signals for flow or mass flow. The input signal type can be selected by the user in the configuration menu without having to adjust any sensitive mechanical dip-switches or jumpers.
Alarm Output
Two fixed alarm outputs are available to transmit the ratio alarm condition, 1 low and 1 high alarm output. The output signals can be a passive NPN, active PNP or an isolated electro-mechanical relay. If there is a no-flow the alarm output will be disabled.
Safety Mode
The F124 has a safety mode that keeps on transmitting a pre-defined value as long as the contact is made. After releasing the contact, the former value and function will be reinstalled.
Communication
All process data and settings can be read and modified manually or through the Modbus communication link (RS232 / RS485). Full Modbus functionality remains available for the Intrinsically Safe version (TTL).
Hazardous area
For hazardous area applications, this model has been ATEX certified Intrinsically Safe II 1 GD EEx ia IIB / IIC T4 T100°C with an allowed operational temperature of -30°C to +70°C (-22°F to +158°F). A flame proof enclosure is also available with the rating II 2 GD EEx d IIB T5.
Enclosures
Various types of enclosures can be selected, all ATEX approved. As standard the F117 is supplied in a GRP panel mount enclosure, which can be converted to a GRP field mount enclosure. Most popular is our rugged aluminum field mount enclosure with IP67 / NEMA 4X rating. Both European or U.S. cable gland entry threads are available.
APPLICATION OVERVIEW
ENCLOSURE
Aluminum & GRP Mount Enclosure
TERMINAL CONNECTIONS
WIRING DIAGRAMS
Wiring Diagram F124-P-AP-CH-OT-PX
*Supply voltage: 1.2 / 3.2V DC to sensor |
Wiring Diagram F124-P-AP-CH-PF
*Supply voltage: 1.2 / 3.2 / 8.2 / 12 / 24V DC to sensor |
Wiring Diagram F124-P-AA-CB-OA-PD
*Supply voltage: 1.2 / 3.2 / 8.2 / 12 / 24V DC to sensor |
Wiring Diagram F124-P-AI-CI-OR-PM
*Supply voltage: 1.2 / 3.2 / 8.2 / 12 / 24V DC to sensor |
HAZARDOUS AREA APPLICATIONS
The F124-XI has been ATEX approved by the KEMA for use in Intrinsically Safe applications. It is approved according to II 1 GD EEx ia IIB/IIC T4 T100°C for gas and dust applications with an operational temperature range of -30°C to +70°C (-22°F to + 158°F). It is allowed to connect up to six barriers in IIB applications or one barrier in IIC applications. Full functionality of the F124 remains available, including 8.2V sensor excitation for e.g. Namur sensors (type PD) and the Modbus communication type CT. A flame proof enclosure is available as well with rating ATEX II 2 GD EEx d IIB T5.
Configuration example IIB and IIC
F124-P-AP-OT-PX-XI - Output loop-powered unit
Configuration example IIB
F124-P-AP-CT-OT-PX-XI - Output loop-powered unit
Configuration example IIB
F124-P-AP-CT-OT-PD-XI - Power supply 16 - 30V DC
Configuration example IIB and IIC
F124-P-AF-CT-OT-PD-XI - Power supply 16 - 30V DC
SPECIFICATIONS
Display
Type: High intensity reflective numeric and alphanumeric LCD, UV-resistant.
Dimensions: 90 x 40mm (3.5" x 1.6").
Digits: Seven 17mm (0.67") and eleven 8mm (0.31") digits. Various symbols and measuring units.
Refresh Rate: User definable: 8 times/sec. - 30 secs - off.
Option ZB: Transflective LCD with green LED backlight. Good readings in full sunlight and darkness.
Note: ZB Only available for safe area applications
Operating Temperature
Standard unit: -30°C to +80°C (-22°F to +178°F).
Intrinsically Safe: -30°C to +70°C (-22°F to +158°F).
Power Requirements
Type PD: 8 - 24V AC / DC ± 10%.
Type PD-XI: 16 - 30V DC (Intrinsically Safe).
Type PF: 24 VAC / DC ± 10%
Type PM: 115-230 VAC ± 10%.
Type PX: 8 - 28V DC output loop-powered unit with analog
output signal type AP (or 8 - 24 V AC/DC if type AP
will not be used).
Sensor Excitation
Type PB/PC/PX: 3.2V DC for pulse signals and 1.2V DC for coil pick-up.
Type PD: 1.2 / 3.2 / 8.2 / 12 / 24V DC - max. 50mA @ 24V DC.
Type PD-XI: 1.2 / 3.2 / 8.2V DC - max. 7mA@8.2V DC and mains power supply voltage (as connected to terminal 1)
Type PF / PM: 1.2 / 3.2 / 8.2 / 12 / 24V DC - max. 400mA @ 24V DC.
Terminal Connections
Type: Removable plug-in terminal strip. Wire max. 1.5mm2 and 2.5mm2.
Data Protection
Type: EEPROM backup of all settings. Data retention at least 10 years
Pass-code: Configuration settings can be pass-code protected.
Environment
Electromagnetic compatibility: Compliant ref: EN 61326 (1997), EN 61010-1 (1993)
Hazardous Area
Intrinsically Safe Type XI: ATEX approval ref.: II 1 GD EEx ia IIB/IIC T4 T100°C. Maximum ambient +70°C (158°F).
Explosion-Proof Type XF: ATEX approval ref.: II 2 GD EEx d IIB T5. Dimensions of enclosure: 300 x 250 x 200mm (11.8" x 9.9" x 7.9") L x H x D.
Weight: Appr. 15kg/33 lbs
Casing
Window: Polycarbonate window.
Sealing: Silicone.
Control keys: Three industrial micro-switch keys. UV-resistant silicone keypad.
Panel Mount Enclosures
Dimensions: 130 x 120 x 60mm (5.12" x 4.72" x 2.36") - W x H x D.
Panel cut-out: 115 x 98mm (4.53" x 3.86") L x H.
Type HB: Die-cast aluminum panel mount enclosure IP65 / NEMA 4X
Weight: 600 grams/1.33 lbs
Type HC: GRP panel mount enclosure IP65 / NEMA 4X, UV-resistant and flame retardant.
Weight: 450 grams/1 lb
Signal Input
Type P: Coil / sine wave (minimum 20mVpp or 80mVpp - sensitivity selectable), NPN/PNP, open collector, reed switch, Namur, active pulse signals 8 - 12 and 24 VDC.
Frequency: Minimum 0Hz - maximum 7kHz for total and flow rate. Maximum frequency depends on signal type and internal low-pass filter. E.g. reed switch with low-pass filter: max. frequency 120Hz.
K-Factor: 0.000010 - 9,999,999 with variable decimal position
Low-pass Filter: Available for all pulse signals.
Option ZF: coil sensitivity 10mVpp.
External Input
Function: Safety input (terminal 15 - 16).
Description: Terminal input to activate the predefined safety ratio. Internally pulled-up switch contact - NPN.
Duration: Minimum pulse duration 100msec.
Analog Output
Function: Controlling the ratio between flow A and B.
Accuracy: 10 bit. Error < 0.05%. Analog output signal can be
scaled to any desired range.
Update time: Ten times per second
Type AA: Active 4-20mA output (requires PD, PF or PM)
Type AB: Active 0 - 20mA output (requires PD, PF or PM)
Type AF: Passive floating 4-20mA output for Intrinsically Safe applications (requires XI + PC or PD)
Type AI: Passive galvanically isolated 4-20mA output
Type AP: Passive 4-20mA output - not isolated. Unit will be loop-powered
Type AU: Active 0 - 10V DC output (requires PD, PF or PM)
Alarm/Pulse Output
Function: Low or high flow rate alarm output.
Alarm value limits: 0 - 100%.
Frequency: Max. 64Hz. Pulse length user definable between
7.8 msec up to 2 seconds.
Type OA: Two active 24V DC transistor outputs (PNP); max. 50mA per output (requires AA + PD, PF or PM).
Type OR: Two electro-mechanical relay outputs (N.O.) - isolated;
max. switch power 230V AC - 0.5A per relay
(requires PF or PM).
Type OT: Two passive transistor outputs (NPN) - not isolated. Max. 50V DC - 300mA per output.
Communication Option
Function: Reading display information, reading / writing all configuration settings.
Protocol: Modbus RTU.
Speed: 1200 - 2400 - 4800 - 9600 baud.
Addressing: Maximum 255 addresses.
Type CB: RS232
Type CH: RS485 2-wire
Type CI: RS485 4-wire
Type CT: TTL Intrinsically Safe.
Operational
Displayed functions:
• Ratio set point in %
• Actual ratio in %
• Flowrate A
• Flowrate B
• Low ratio alarm value
• High ratio alarm value
• Operation modes: Hand, Local or Ratio
• Safety mode
Flow Rate
Digits: 7 digits.
Units: mL, L, m3, Gallons, KG, Ton, lb, bl, cf, RND, ft3, scf, Nm3, Nl, igal - no units.
Decimals: 0 - 1 - 2 or 3.
Time units: /sec - /min - /hr - /day.
Control Parameters
Operation mode: Hand, Local, Ratio
Control action: Direct / Reverse
Proportional band: 0.1 to 999,9%.
Integral time: 0.1 to 6,000.0 s or OFF (0.0).
Safety output: -5.0 to 105.0% (0) = Run / (1) = Safety output.
Control output limiter: -5.0 to 105.0% for both high and low limits.
ORDERING INFORMATION
Standard Model Number Configuration: F124-P-AP-CX-EX-HC-IX-OT-PX-TX-XX-ZX
Sensor Input Signal
| P |
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Pulse input: coil, npn, pnp, namur, reed-switch |
Analog Output Signal
| AA |
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Active 4-20mA output - requires OA + PD, PF or PM |
| AB |
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Active 0 - 20mA output - requires OA + PD, PF or PM |
| AF |
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I.S. floating 4-20mA output - requires XI + PC or PD. |
| AI |
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Isolated 4-20mA output - requires PB, PD, PF or PM. |
| AP |
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Passive 4-20mA output, loop-powered unit |
| AU |
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Active 0 - 10V DC output - requires OA + PD, PF or PM |
Communication
| CB |
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Communication RS232 - Modbus RTU. |
| CH |
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Communication RS485 - 2-wire - Modbus RTU. |
| CI |
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Communication RS485 - 4-wire - Modbus RTU. |
| CT |
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Intrinsically Safe TTL - Modbus RTU. |
| CX |
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No communication |
Flow Equations
| EX |
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No flow equations |
Panel Mount Enclosures - IP65 / NEMA 4X
| HB |
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Aluminum enclosure |
| HC |
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GRP enclosure |
Outputs
| OA |
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One active transistor output - requires AA, AB or AU and PD, PF or PM. |
| OR |
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One mechanical relay output - requires PF or PM |
| OT |
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One passive transistor output - standard configuration |
Power Supply
| PD |
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16-30 VDC + sensor supply - with XI: 16 - 30V DC. |
| PF |
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24 VAC / DC + sensor supply |
| PM |
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115-230 VAC + sensor supply |
| PX |
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Basic power supply 8 - 30V DC (no real sensor supply). Unit requires external loop AP. |
Temperature Input Signal
| TX |
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No temperature input signal |
Hazardous Area
| XI |
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Intrinsically Safe, according ATEX. |
| XF |
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EExd enclosure - 3 keys |
| XX |
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Safe area only |
Other Options
| ZB |
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Backlight |
| ZF |
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Coil input 10mVpp |
| ZX |
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No options |
The bold marked text contains the standard configuration.
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DOCUMENTATION
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