F126-EL marketing page: Precision Digital Corporation

F126-EL marketing page: Precision Digital Corporation

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Fluidwell F126-EL - Flow Computer

Overview	Application	Terminal Connections	Wiring Diagrams

Hazardous Area Application	Specifications	Ordering Information	Documentation

F126-EL-FLOWCOMPUTER

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Features

Calculates compensated flow rate, total and accumulated total.
Displays actual line temperature.
Selectable on-screen engineering units; volumetric or mass.
7 digit resettable total.
11 digit accumulated total.
Analog signal output.
Very compact design for panel mount, wall mount or field mount applications.
Operational temperature -30 up to 80°C (-22 up to 178°F).
Rugged aluminum field mount enclosure IP67/NEMA 4X.
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 or battery powered, 8 - 24V AC/DC or 115 - 230V AC power supply.
Sensor supply 3.2 / 8.2 / 12 / 24V DC.

Signal Input - Flow

Reed-switch.
NAMUR.
NPN/PNP pulse.
Sine wave (coil).
Active pulse signals
(0)4-20mA.
0 - 10V DC.

Signal Input - Temperature

PT100 - 2 or 3 wire.
(0)4-20mA.
0 - 10V DC.

Applications

Applications where net flow calculation at base conditions is desired without the influence of thermal product expansion.

Signal Output

(0)4-20mA / 0 - 10V DC according to
compensated flow rate.

OVERVIEW

Introduction

The flow computer Model F126-EL has been developed to calculate corrected liquid volume at normal conditions for generic products. The corrected volumetric flow is calculated by using the thermal expansion coefficient algorithm stored in the flow computer. The reference temperature can be defined as desired, e.g. 15°C, 20°C or 60°F. A typical application is flow calculation of water, fuel or chemicals at base conditions. A wide selection of options further enhance this models capabilities, including Intrinsic Safety and full Modbus communication.

Display

The display has large 17mm (0.67”) and 8mm (0.31”) digits which can be set to show flow rate, total and temperature. On-screen engineering units are easily configured from a comprehensive selection. The accumulated total can register up to 11 digits and is backed-up in EEPROM memory every minute.

Configuration

All configuration settings are accessed via a simple operator menu which can be pass-code 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 failure.

Analog Output Signal

The calculated flow rate is re-transmitted with the (0)4-20mA or 0 - 10V DC output signal. The output signal is updated ten times per second with a filter function being available to smoothen out the signal if desired. The output value is user defined in relation to the flow rate, e.g. 4mA equals to 15Nm3/Hr and 20mA equals to 2000Nm3/Hr. The output signal can be passive, active or isolated where the passive output type will loop power the F126-EL as well.

Signal Input

The flow computer measures the uncorrected volumetric flow and actual line temperature. The F126-EL will accept most pulse and analog input signals for flow. For temperature measurement, 2 or 3 wire PT100 elements or sensors with a (0)4-20mA / 0 - 10V DC output signal can be used.

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 F126-EL is supplied in a GRP panel mount enclosure, which can be converted to an IP67 / NEMA 4X GRP field mount enclosure by the addition of a back case. 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

F010 Application Overview

ENCLOSURE

Aluminum & GRP Mount Enclosure

Loop-Powered General Purpose Indicator Enclosures

TERMINAL CONNECTIONS

Terminal Connections

WIRING DIAGRAMS

Wiring Diagram F126-P-(AP)-CH-EL-PB-TP *Supply voltage: 1.2 / 3.2V DC to sensor	Wiring Diagram F126-P-AP-CH-EL-PX-TA *Supply voltage: 1.2 / 3.2V DC to sensor
Wiring Diagram F126-P-AI-CI-EL-PD-TA *Supply voltage: 1.2 / 3.2 / 8.2 / 12 / 24V DC to sensor	Wiring Diagram F126-A-AA-CB-EL-PM-TP *Supply voltage: 3.2 / 8.2 / 12 / 24V DC to sensor

HAZARDOUS AREA APPLICATIONS

The F126-EL-XI has been ATEX approved by 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 four barriers in IIB applications or one barrier in IIC applications. Full functionality of the F126-EL remains available, including 4-20mA output according to the flow rate and Modbus communication (type CT). Power supply type PD-XI offers a 8.2V sensor supply e.g. for one Namur sensor and a temperature sensor. A flame proof enclosure with rating ATEX

II 2 GD EEx d IIB T5 is available as well.

Configuration example IIB and IIC
F126-P-(AP)-(CT)-EL-PC-TP-XI - Battery powered unit

F010: Configuration example

Configuration example IIB and IIC
F126-P-AP-(CT)-EL-PX-TP-XI - Output loop-powered

F010: Configuration example IIA - IIB and IIC - F010-P-PX-XI-(ZB) - Basic power supply 8-30 VDC

Configuration example IIB and IIC
F126-A-AF-(CT)-EL-PD-TA-XI - Power supply 16 - 30V DC

F010: Configuration example IIA - IIB and IIC - F010-P-PX-XI-ZB - Basic power supply 8-30 VDC

Configuration example IIB
F126-A-AF-CT-EL-(PC)-(PD)-(PL)-TA-XI
Power supply 16 - 30V DC, battery or loop-powered

F010: Configuration example IIA - IIB and IIC - F010-P-PD-XI-ZB - 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 PB: Long life Lithium battery - life-time depends upon settings and configuration - up to 5 years.
Type PC: Intrinsically Safe long life lithium battery - life-time depends upon settings and configuration - up to 5 years.
Type PD: 8 - 24V AC / DC ± 10%. Power consumption max. 10 Watt. Intrinsically Safe: 16 - 30V DC; power consumption max. 0.75 Watt.
Type PF: 24 VAC / DC ± 10% Power consumption max. 15 Watt
Type PL: Input loop-powered from sensor signal 4-20mA (type “A”) - requires types AI or AF.
Type PM: 115-230 VAC ± 10%. Power consumption max. 15 Watt
Type PX: 8 - 30V DC. Power consumption max. 0.5 Watt.
Type ZB: 12 - 24V DC ± 10% or type PD / PF / PM.Power consumption max. 1 Watt.
   Note: PB/PF/PM Not available Intrinsically Safe.
   Note: PF/PM The total consumption of the sensors and outputs may not exceed 400mA @ 24V.
   Note: For Intrinsically Safe applications, consult the safety values in the certificate.

Sensor Excitation

Type PB/PC/PX: 3.2V DC for pulse signals and 1.2V DC for coil pick-up.
Note This is not a real sensor supply. Only suitable for sensors with a very low power consumption like coils (sine wave) and reed-switches.
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).
Note In case PD-XI and signal A or U: the sensor supply voltage is according to the power supply voltage connected to terminal 1. The sensor supply of the second analog input is fixed 8.2V DC.
Type 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. Backup of running totals every minute. 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

Flowmeter 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.
Type A: (0)4-20mA. Analog input signal can be scaled to any desired range within 0 - 20mA.
Type U: 0 - 10 VDC. Analog input signal can be scaled to any desired range within 0 - 10 VDC.
  Accuracy: Resolution:14 bit Error < 0.025mA / ± 0.125% FS. Low level cut-off programmable.
  Span: 0.000010 - 9,999,999 with variable decimal position
  Update time: Four times per second.
  Voltage drop: Type A: max. 2.5 VDC @ 20mA.
  Load impedance: Type U: 3kΩ.
  Relationship: Linear and square root calculation.
   Note: For signal type A and U: external power to sensor is required; e.g. type PD.

Temperature

Accuracy: Resolution: 14 bit. Error < 0.025mA / ± 0.125% FS Low level cut-off programmable.
  Update time: Four times per second.
Type TA: (0)4-20mA. Analog input signal can be scaled to any desired range within 0 - 20mA.
  Span: 0.000010 - 9,999,999 with variable decimal position.
  Offset: 0.00 - 99,999.99 K.
  Voltage drop: 2.5V @ 20mA.
Type TP: 2 or 3 wire PT100.
  Range: -100°C to +200°C (-148°F to 392°F).  Accuracy: 0.1°C (0.18°F).
  Option ZV: Range: -200°C to +800°C (-328°F to 1832°F). Accuracy 0.5°C (0.9°F).
Type TU: 0 - 10V DC. Analog input signal can be scaled to any desired range within 0 - 10V DC.
  Span: 0.000010 - 9,999,999 with variable decimal position.
  Offset: 0.00 - 99,999.99 K.
  Load impedance: 3kΩ.
   Note 1 For signal TA and TU: power supply to temperature sensor is required; e.g. PD.

Analog Output

Function: Transmitting compensated flow rate.
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 or PM)
Type AB: Active 0 - 20mA output (requires PD or PM)
Type AF: Passive floating 4-20mA output for Intrinsically Safe applications (requires XI + PC, PL or PD)
Type AI: Passive galvanically isolated 4-20mA output - also available for battery powered models (requires PB, PD, PL or PM)
Type AP: Passive 4-20mA output - not isolated. Unit will be loop-powered
Type AU: Active 0 - 10V DC output (requires PD or PM)

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:
    • Compensated flow rate.
    • Compensated total and accumulated total
    • Actual line temperature.
    • Total can be reset to zero by pressing the CLEAR-key twice.

Total

Digits: 7 digits.
Units: L, m³, GAL, USGAL, KG, lb, bbl, no unit
Decimals: 0 - 1 - 2 or 3.
Note: Total can be reset to zero.

Accumulated Total

Digits: 11 digits.
Units/Decimal: According to selection for total.
Note: Can not be reset to zero.

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.

Line Temperature

Digits: 6 digits.
Units: °C, °F or K
Decimals: 1

Flow Equation

Type EG: Corrected gas volume.
  Formula: Qnormal = Q x (1 + α (Tnormal - T)) where α = thermal expansion coefficient.
  Normal pressure: Default: 1.013 bar.
  Normal temperature: Default: 273.15K (0°C / 32°F)

ORDERING INFORMATION

Standard Model Number Configuration: F126-P-AP-CX-EL-HC-IX-OX PX-TA-XX-ZX

To aid in the construction of a Fluidwell model number a model configurator must be used. The path to this Configurator is contained in the link shown below. However, it would help to first review the options shown below.

NOTE: If you require the product to be Intrinsically Safe (ATEX, IECEx, CSA or c-us), the options you choose should only include those options that carry the ATEX symbol next to them. The Configurator will not allow you to mix and match options, unless the product is to be used in a Safe Area.

Once a new model is generated using the Configurator, you will

see the price of the fully configured model
have an opportunity to purchase the product
have the capability to e-mail the configuration to us, yourself, or a third person

To launch the configurator, click here

Sensor Input Signal

A		(0)4-20mA input
P		Pulse input: coil, npn, pnp, namur, reed-switch
U		0 - 10 VDC input

Analog Output Signal

AA		Active 4-20mA output - requires PD or PM.
AB		Active 0 - 20mA output - requires PD or PM.
AF		I.S. floating 4-20mA output - requires XI + PC, PL or PD.
AI		Isolated 4-20mA output - requires PB, PD, PL or PM.
AP		Passive 4-20mA output, loop-powered unit
AU		Active 0 - 10V DC output - requires PD or PM.

Communication

CB		Communication RS232 - Modbus RTU.
CH		Communication RS485 - 2-wire - Modbus RTU.
CI		Communication RS485 - 4-wire - Modbus RTU.
CT		Intrinsically Safe TTL - Modbus RTU.
CX		No communication

Flow Equations

EL

Corrected liquid volume

Panel Mount Enclosures - IP65 / NEMA 4X

HB		Aluminum enclosure
HC		GRP enclosure

Outputs

OX

No output.

Power Supply

PB		Lithium battery powered
PC		Lithium battery powered - Intrinsically Safe
PD		16-30 VDC + sensor supply- with XI: 16 - 30V DC.
PL		Input loop-powered from sensor signal type “A” - requires AI or AF and OT.
PM		115-230 VAC + sensor supply
PX		Basic power supply 8 - 30V DC (no real sensor supply). Unit requires external loop AP

Temperature Input Signal

TA		(0)4-20mA input.
TP		PT100 input.
TU		0 - 10V DC input.

Hazardous Area

XI		Intrinsically Safe, according ATEX.
XF		EExd enclosure - 3 keys
XX		Safe area only

Other Options

ZB		Backlight
ZF		Coil input 10mVpp
ZV		PRTD-range -200°C / +800°C.
ZX		No options

The bold marked text contains the standard configuration.

DOCUMENTATION