ELECTRA-flo 5 Series Catalog Sheet
Precision Airflow MeasurementAn ONICON BrandELECTRA-flo5 SeriesTHERMAL AIRFLOWMEASUREMENTSYSTEMThe E-flo 5 Seriesrepresents thestate-of-the-art inelectronic airflowmeasurement.The 5 Series hasthe features andperformancerequired by thechallengingapplications foundin todays complexHVAC systems.DOC-0002701www.airmonitor.comRev. D
ELECTRA-flo 5 SeriesTHERMAL AIRFLOW MEASUREMENT SYSTEMPrecision Airflow MeasurementAn ONICON BrandFEATURESAccommodates (32) Thermal Sensing Pointsper ArrayMore sensing points means more accuratemeasurements in challenging “real world” ductconfigurations.Serial Communication Bus Between IndividualSensors and TransmitterAllows individual probes to be daisy chained togetherin the field - Saves time and money by simplifying theinstallation!DESCRIPTIONAir Monitor’s ELECTRA-flo 5 Series Thermal DispersionAirflow Measurement instruments accurately measureairflow in a wide variety of commercial HVAC applicationsand installations.At the heart of each ELECTRA-flo/S5 thermal probe arrayis pairs of precision matched thermistors installed inaerodynamic apertures. These sensor aperture assembliesare specifically designed to reduce the effects of angularflow distortions found within ducted air distributionsystems. The design, construction, and calibration of eachthermistor sensor pair ensures the accuracy and long termreliability of the measurement system.APPLICATIONSPermanently installed airflow measurement systems providethe real time, actionable information required for the safe,code compliant and efficient operation of today’s highperformance buildings.Building Airflow Distribution Systems - Including supply,return, exhaust, relief and dedicated outdoor air systems(DOAS) applications.Ruggedized, Hermetically Sealed Sensors Precision Thermistors And Heating Circuit Are FullyEncapsulatedProvides a high degree of protection from theenvironment and allows the sensor assembly to becleaned without damage.Dedicated ELECTRA-flo G5 Transmitter with DisplayEach airflow measurement system comes completewith a transmitter that is factory matched andconfigured, guaranteeing system performance.True Dual Channel Version AvailableThe ELECTRA-flo G5 Dual Transmitter provides twoseparate airflow measurements in one transmitter.Duct size and sensor allocation is set independentlyfor each channel.Fan Inlet Airflow Measurement - Single inlet, dual inlet orfan wall installations.CALIBRATIONIndividual sensors receive a multi-point, NIST* traceablecalibration of air velocity and temperature across the entireoperating range.* National Institute of Standards and Technology800.247.3569Page 2airmonitor.com
ELECTRA-flo 5 SeriesTHERMAL AIRFLOW MEASUREMENT SYSTEMPrecision Airflow MeasurementAn ONICON BrandSPECIFICATIONS*ELECTRA-flo G5 CONDITIONSAMBIENTTEMPERATUREINPUT POWER24 VACI/O SIGNALSELECTRONICSENCLOSURESingle or dual channel operationSupports up to 32 individual thermal dispersion airflow sensorsProvides airflow velocity, flow and temperatureSupports multiple airflow measurement system typesProvides three (3) field characterization methods-20 F to 180 F (Storage), -20 F to 140 F (Operating)HUMIDITY0 to 99% RH, non-condensing24 VDC20 - 28 VDC, 16 - 50 W, varies based on # of sensors20 - 28 VAC, 16 - 90 VA, varies based on # of sensors (# of sensors x 1.1 VA)Two (2) analog outputs, selectable based on configurationAVAILABLE OPTIONSDISPLAY Aluminum, NEMA 1Stainless steel, NEMA 4X without viewing windowAluminum , NEMA 1 with conduit connection boxFiberglass, NEMA 4X with viewing window2.75" x 2" TFT color LCDPROGRAMMINGMenu driven user interface via four (4) push buttonsELECTRICALCONNECTIONSPOWERRemovable terminal block for use with 14 to 18 AWG wireI/ORemovable terminal block for use with 14 to 22 AWG OMMUNICATIONSAVAILABLE OPTIONSRemovable terminal block for use with 14 to 22 AWG wire NEMA 1 enclosure, two (2) mini-DIN connectors XMTR to probes andtwo (2) ½" conduit openings NEMA 4X enclosure, two (2) liquid tight cord grips and two (2) ½" conduit openingsRS485, BACnet MS/TP or MODBUS RTUUL60730BTLCertified to BACnet standard ISO 16484-5 rev. 1.12FCCMeets part 15 Subpart B, Class A device requirementsELECTRA-flo/S5 Thermal Dispersion Probe ArrayPERFORMANCESENSOR DESIGNSENSOR CAPACITYSENSOR ACCURACYIndividual sensor accuracy: 2% of reading from 0 - 5000 FPMVELOCITY RANGEDucted mounted installations: 0 - 5000 FPMStation mounted probe arrays: 0-5000 FPM (0-4000 FPM with straightening cell)Fan inlet installations: 0-10,000 FPMSYSTEM ACCURACYComplete system accuracy: 3% of reading over published velocity rangePrecision matched, hermetically sealed thermistors with laser trimmed resistive heating elementDedicated 16 bit A/D processing of each sensor signalSensor node consists of two (2) thermistors mounted in a dedicated flow conditioning aperatureTEMPERATUREACCURACY 0.1 F over operating range of -20 F to 140 FPROBEMaximum of 8 sensors per probeTRANSMITTERMaximum of 32 sensors per transmitter, shared between both channels* SPECIFICATIONS subject to change without notice.800.247.3569Page 3airmonitor.com
ELECTRA-flo 5 SeriesTHERMAL AIRFLOW MEASUREMENT SYSTEMPrecision Airflow MeasurementAn ONICON BrandSPECIFICATIONS CONTINUED*ELECTRA-flo/S5 Thermal Dispersion Probe Array (Continued)SENSOR DENSITYDUCT & STATIONMOUNTEDThree (3) sensor density levels specifiable based on configurationAVAILABLE OPTIONS 6063 anodized aluminum, 1⅛" diameter with NEMA 1 enclosure 6063 anodized aluminum, 1⅛" diameter with NEMA 4 enclosureand IP68 liquid tight cord grips 6063 anodized aluminum, 1⅛" diameter with NEMA 4 enclosureand ½" conduit connections 300 series stainless steel, 1⅛" diameter with NEMA 4X enclosureand ½" conduit connectionsFAN INLETSingle or dual sensor configuration per inlet availableOPERATINGCONDITIONSFLUID TEMPERATURE-20 F to 140 FWIRINGCONNECTIONSAVAILABLE OPTIONSPROBEMATERIALS OFCONSTRUCTIONDUCT MOUNTEDPROBE ARRAYSSTATIONMOUNTED PROBEARRAYSHUMIDITY0 to 99% RH, non-condensing Mini-DIN, NEMA 1 only Conduit opening with terminal blocks IP68 liquid tight cord gripMOUNTING OPTIONS Rectangular duct, external or internally mounted Rectangular duct, standoff mount Circular duct, external or internally mountedCONSTRUCTIONOPTIONS 14 ga. galvanized steel with 11/2" flange 18 ga. stainless steel with 11/2" flange Aluminum honeycomb airflow straightening cellELECTRA-flo/FI Thermal Dispersion Fan Inlet Probe ArrayPERFORMANCESENSOR DESIGNSENSOR CAPACITYSENSOR DENSITYPROBEMATERIALS OFCONSTRUCTIONSENSOR ACCURACYIndividual sensor accuracy: 2% of reading from 0 - 5000 FPMVELOCITY RANGEFan inlet installations: 0-10,000 FPMSYSTEM ACCURACYComplete system accuracy: 3% of reading over published velocity range¹Precision matched, hermetically sealed thermistors with laser trimmed resistive heating elementEach sensor node consists of two (2) thermistors mounted in a dedicated flow conditioning aperatureEach sensor node is completely sealed and impervious to waterTEMPERATUREACCURACY 0.1 F over operating range of -20 F to 140 FFAN INLETSingle or dual sensor configuration per inlet availableTRANSMITTERMaximum of 32 sensors per transmitter6063 anodized aluminum, 1⅛" diameter with remote NEMA 4X poly enclosureOPERATINGCONDITIONSFLUID TEMPERATURE-20 F to 140 FWIRINGCONNECTIONSAVAILABLE OPTIONS Watertight integral plenum rated cable attached to probe Conduit opening with terminal blocksFAN INLETHUMIDITY0 to 100% RH, condensingStainless steel tube in tube telescoping support struts and stainless steel mounting bracketsNote¹ Field characterization required to achieve 3% system accuracy* SPECIFICATIONS subject to change without notice.800.247.3569Page 4airmonitor.com
ELECTRA-flo 5 SeriesTHERMAL AIRFLOW MEASUREMENT SYSTEMPrecision Airflow MeasurementAn ONICON BrandELECTRA-flo 5 Series ThermalAirflow Measuring StationsThe ELECTRA-flo/S5-MM or CM consist of S5 Series probe arraysmounted in prefabricated stations. Stations guarantee the configurationand level of performance specified is installed. The use of prefabricatedstations simplifies the installation process – stations mount directly to ductsvia flange connections.The stations feature S5 probes externally mounted and pre-wired,simplifying the installation process. The G5 transmitter can be mounteddirectly on the station or located remotely.The E-flo/S5 stations are manufactured with or without air straighteningcells (honeycomb).ELECTRA-flo/S5-MM Stations 0-4000 FPMELECTRA-flo/S5-CM is provided with aluminum Honeycomb cell. Theair conditioning cell reduces the amount of straight duct run required indifficult installation locations.The 3003 series aluminum cell features honeycomb construction, providinga robust, corrosion resistant air flow straightening system - allowingunsurpassed performance in difficult installation configurations.The honeycomb design provides extremely low airflow resistance whilemaximizing its’ flow conditioning ability in difficult installation locations.To add more flexibility, the Dual Channel version of the G5 transmitterallows different styles of probe arrays, such as prefabricated stations, faninlets or field inserted probe arrays, to be connected to a single transmitter– reducing installation time and cost.ELECTRA-flo/S5-CM Stations 0-5000 FPME-flo-CM Station Airflow Resistance450040003500Airflow Velocity, .35Resistance to Airflow, inches w.c.800.247.3569Page 5airmonitor.com
ELECTRA-flo 5 SeriesTHERMAL AIRFLOW MEASUREMENT SYSTEMPrecision Airflow MeasurementAn ONICON BrandELECTRA-flo/FI Probe Array forFan Inlet InstallationsThe ELECTRA-flo 5 Series family also includes the ELECTRA-flo/FI, a systemof thermal probes and the associated hardware specifically designed foruse in both single and dual inlet fan applications. The adjustable mountingbrackets allow for easy installation of the sensors, and the transmitterinterface provides a simple field characterization routine, allowing quicksystem set up in the field.ELECTRA-flo/FA Fan Wall(Array) for Multiple Fan InletInstallationsThe ELECTRA-flo/FA is designed to be installed in the environment foundwithin the AHU itself, allowing for an easy and clean installation in fan wall(array) applications. Due to the ELECTRA-flo/FA’s sensor architecture, upto 32 individual fans can be measured by simply daisy chaining all of thefan inlet sensors back to a single transmitter. Utilizing the native BACnetserial communication capability found in the ELECTRA-flo G5 Transmitter,individual fan performance information can be brought back to the BMS.ELECTRA-floThermal Airflow Transmitter800.247.3569ESCUPENTDNPage 6airmonitor.com
ELECTRA-flo 5 SeriesTHERMAL AIRFLOW MEASUREMENT SYSTEMPrecision Airflow MeasurementAn ONICON BrandAdditional Products in theELECTRA-flo FamilyELECTRA-flo/SDThermal Dispersion airflow measurement for use in small duct applications,from 4" to 16". Ideal for direct VAV control in critical space applications.ELECTRA-flo/SD Thermal Airflow Probeand TransmitterVOLU-trol/E Thermal Measurement and Control StationUtilizes ELECTRA-flo 5 Series Thermal Dispersion sensing technology withan integrated damper to continuously measure and control ducted airflow.The VOLU-trol/E features aluminum dampers with blade seals certified toClass 1A leakage rates as defined by AMCA. The VOLU-trol/E is well suitedfor many VAV applications.VOLU-trol/E Thermal Measurementand Control Station800.247.3569Page 7airmonitor.com
ELECTRA-flo 5 SeriesTHERMAL AIRFLOW MEASUREMENT SYSTEMPrecision Airflow MeasurementAn ONICON BrandMODEL SELECTION GUIDEModel Number Coding E-flo G5-AB-CDEF (-SPC)Electra-flo G5 TransmitterA Feature Set1 Thermal dispersion airflow transmitter with backlitgraphical LCD, two (2) programmable analog outputsand RS485 serial communication.2 Dual channel thermal dispersion airflow transmitter withbacklit graphical LCD, two (2) programmable analogoutputs and RS485 serial communication.B Enclosure1 NEMA 1 enclosure2 NEMA 4X SS enclosure without viewing window3 NEMA 4X fiberglass enclosure with viewing window4 NEMA 1 enclosure with conduit connection boxC Outputs0 None2 Two (2) analog outputs and one (1) alarm outputD Communications0 None1 RS485, BACnet MS/TP or MODBUS RTUE Input Power1 24 V AC/DCF Wiring Connection1 Mini-DIN, XMTR to probe, 10ft2 Mini-DIN, XMTR to probe, 25ft3 Mini-DIN, XMTR to probe, 50ft4 Mini-DIN, XMTR to probe, 100ftSPC Special Config000 None101 SS TagsModel Number Coding E-flo/S5-AA-BBCC-DEF (-SPC)E-flo/S5 Thermal Dispersion Airflow Measurement System, Probe Array OnlyAA Probe Mounting StyleE Max Probe Length Dimension (Diameter) InlineR1 External mount, rectangularwith Probe (inches)R2 Internal mount, rectangularA 8 to 12R3 Internal stand-off mount, rectangularB 13 to 18C1 External mount, circularC 19 to 24C2 Internal mount, circularD 25 to 30E 31 to 36BB Number of SensorsF 37 to 4201 One (1) sensor in arrayG 43 to 48nn Number of sensors in array, up to 32 maxH 49 to 54I 55 to 60CC Number of ProbesJ 61 to 6601 One (1) probe in arrayK 67 to 72nn Number of probes in array, up to 8 maxL 73 to 84M 85 to 96D Material of Construction ProbesN 97 to 1081 6063 Annodized Al., 11/8" dia. with NEMA 1 castO 109 to 120aluminum enclosureF Wiring Connections Probe to Probe2 6063 Annodized Al., 11/8" dia. with NEMA 4 cast1 Mini-DIN, NEMA 1 (where D 1 only)aluminum enclosure, IP68 liquid tight cord grips3 Conduit w/ terminal blocks (where D 1, 3, 4)3 6063 Annodized Al., 11/8" dia. with NEMA 4 cast4 IP68 liquid tight cord grips (where D 2 only)aluminum enclosure, 1/2" conduit connections4 300 Series SS, 11/8" dia. with NEMA 4X SS enclosure,SPC Special Configuration1/2" conduit connections000 None101 SS TagsNotes1. Maximum number of sensors (nodes) / probe is 82. Internal stand off mount in circular ducts is NOT allowed800.247.3569Page 8airmonitor.com
ELECTRA-flo 5 SeriesTHERMAL AIRFLOW MEASUREMENT SYSTEMPrecision Airflow MeasurementAn ONICON BrandMODEL SELECTION GUIDE CONTINUEDModel Number Coding E-flo/S5-AA-BBCC-DEF (-GHIJK)(-SPC)E-flo/S5 Thermal Dispersion Airflow Measurement System, Station Mounted Probe ArrayAA Probe Mounting StyleH Short Opening Dimension (inches)MM External mount in casing only, no straightening cellA 8 to 12CM External mount in casing with straightening cellB 13 to 18C 19 to 24BB Number of SensorsD 25 to 3001 One (1) sensor in arrayE 31 to 36nn Number of sensors in array, up to 32 maxF 37 to 42G 43 to 48CC Number of ProbesH 49 to 5401 One (1) probe in arrayI 55 to 60nn Number of probes in array, up to 8 maxJ 61 to 66K 67 to 72D Material of Construction ProbesL 73 to 841 6063 Annodized Al., 11/8" dia. with NEMA 1 castM 85 to 96aluminum enclosureN 97 to 1082 6063 Annodized Al., 11/8" dia. with NEMA 4 castO 109 to 120aluminum enclosure, IP68 liquid tight cord grips9 Indicates Circular Duct, See Diameter "E"3 6063 Annodized Al., 11/8" dia. with NEMA 4 castaluminum enclosure, 1/2" conduit connectionsI Flange Connection4 300 Series SS, 11/8" dia. with NEMA 4X SS enclosure,1 11/2" flange, 90 deg. formed, integral to casing1/2" conduit connections(where G R, all sizes)2 1" flange, 90 deg. welded to casing, 14 ga.E Max Probe Length Dimension (Diameter)(where G C, 24")Inline with Probe (inches)3 11/2" flange, 90 deg. welded to casing, 14 ga.A 8 to 12(where G C, 24" to 44")B 13 to 184 2" flange, 90 deg. welded to casing, 3/16" barstockC 19 to 24(where G C, 44")D 25 to 305 Beaded edge, with 18 ga. casing onlyE 31 to 36(where G C, 8" to 24")F 37 to 42G 43 to 48J Material of Construction CasingH 49 to 541 14 ga. galvanized steel (where G R)I 55 to 602 18 ga. galvanized steel (where G C)J 61 to 663 14 ga. stainless steel, Type 316 (where G R)K 67 to 724 18 ga. stainless steel, Type 316 (where G C)L 73 to 84M 85 to 96K Casing Width (depth) DimensionN 97 to 1081 8"O 109 to 1202 10"3 12"F Wiring Connections Probe to Probe4 14"1 Mini-DIN, NEMA 1 (where D 1 only)5 20"3 Conduit w/terminal blocks (where D 1, 3, 4)SPC Special Configuration4 IP68 liquid tight cord grips (where D 2 only)000 NoneG Station Configuration101 SS TagsR RectangularC CircularNotes1. Maximum number of sensors (nodes) / probe is 82. Internal stand off mount in circular ducts is NOT allowed800.247.3569Page 9airmonitor.com
Precision Airflow MeasurementAn ONICON BrandP.O. Box 6358 Santa Rosa, CA 95406 USA Tel 1 (800) airflow Fax 1 (707) 526-9970www.airmonitor.com amcsales@airmonitor.com
ELECTRA-flo 5 Series Thermal Airflow Measuring Stations 0 500 1000 1500 2000 2500 3000 3500 4000 4500 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 Airflow Velocity, FPM Resistance to Airflow, inches w.c. E-flo-CM Station Airflow Resistance ELECTRA-flo/S5-CM Stations 0-5000 FPM ELECTRA-flo/S5-MM Stations 0-4000 FP
Due to the ELECTRA-flo/FA’s sensor architecture, up to 32 individual fans can be measured by simply daisy chaining all of the fan inlet sensors back to a single transmitter. Utilizing the native BACnet serial communication capability found in the ELECTRA-flo G5 Transmitter, individual fan performance
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