Air Monitor Corporation ELECTRA-flo Ultra Reference guide

ELECTRA-flo Probe Arrays - Ultra
INSTALLATIONPROCEDURE
WARRANTY
AirMonitorCorporation(hereinafterreferredtoas"Seller")warrantsthatatthetimeofshipment,productssold
pursuant to this contract will be free from defects in materials and workmanship, and will conform to the
specificationsfurnishedorapprovedinwritingbySeller.Nowarrantyisgiventhatdeliveredproductswillconform
to catalog sheets, data sheets, and the like, which are subject to change without notice.
Seller will repair or replace, at its option, any products listed under this warranty which is returned freight pre-
paidtoSellerandwithintheearlierofthree(3)yearsafterstart-uporthirty-nine(39)monthsaftershipment,prove
upon test and examination by Seller to be defective within the terms of this warranty. The warranty period for
anyitemrepairedorreplacedshallbeforthetimeremainingonthewarrantyperiodfortheoriginalcomponents.
Purchaser shall notify Seller in writing of such defect within sixty (60) days of discovery of the defect.
This warranty does not extend to any product sold by Seller which has been the subject of misuse, neglect,
accident,damageormalfunctioncausedbyinterconnectionwithequipmentmanufacturedbyothers,improper
installationorstorage,orusedinviolationofinstructionsfurnishedbySeller,nordoesitextendtoanyproduct
which has been repaired or altered by persons not expressly approved by Seller.
Seller shall not be liable for any special or consequential damages or for loss of damage directly or indirectly
arising from the use of the products.
Thewarrantysetforthaboveisinlieuofallotherwarrantieseitherexpressorimpliedandconstitutesthefullextent
ofAirMonitorCorporation'sliabilitytothecustomer,oranyotherpartyforbreachofwarranty. THEREARENO
EXPRESSWARRANTIESEXCEPTASSETFORTHHEREIN. THEREARENOIMPLIEDWARRANTIESOF
MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE, WHICH ARE PARTICULARLY
DISCLAIMED.
INSPECTION&HANDLING. TheELECTRA-floProbeArraysshouldbecarefullyinspectedfordamagepriortoinstallation.
Reportdamage to your FreightDepartment, orcontact deliverycarrier.
Almost any means of handling can be utilized depending on the length of the probes. Probes may be handled
while in any position; however, it is important not to drop or mishandle the probes such that damage is done to the
sensing holes, tubular members, signal connection fittings, end studs, or mounting plates.

ELECTRA-flo Probe Arrays – Ultra – Installation Procedure
LOCATION OF PROBES.
• When installing the ELECTRA-flo probes, select a location that meets or exceeds the Minimum Installation
Requirements.
• Whenmore than the combined upstream and downstreamminimum requirement forundisturbed straight duct is
available, distribute the excess duct length in proportion to the minimum requirements.
• Avoid locating the probes where they will be exposed to condensing moisture, such as downstream of a coil or
humidifier.
• ContactAir Monitor's Applications Engineering Department forguidancewhentheintended installation location
does not meet the Minimum Installation Requirements.
MINIMUM INSTALLATION REQUIREMENTS.
Turbulent Airflow. The aerodynamic design of the ELECTRA-flo sensor aperture will permit accurate flow
measurement in the presence of moderate air turbulence. The distances from air turbulence producing fittings,
transitions, etc., shown below are required to assure accurate airflow measurement.
Stratified Airflow. The ELECTRA-flo should be mounted so that the probe crosses any stratified airflow - not
parallel to the flow. This mounting arrangement will permit the probe to sense the wide range of velocities present in
stratifiedairflow.
Airborne Contaminants. The levels of air filtration and cleanliness associated with commercial HVAC systems
are satisfactory for the ELECTRA-flo. Applications containing airborne contaminants or condensing moisture may
impair measurement accuracy and functionality.
Minimum Requirements. The ELECTRA-flo locations shown below are the minimum clearance required from
airturbulence producing sources. Wherever possible, the ELECTRA-flo should be installed where greater runs of
straight duct or clearances exist.
- 2 -

ELECTRA-flo Probe Arrays – Ultra – Installation Procedure
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INSTALLATION CONFIGURATIONS. Depending upon the size of the duct, the quantity of probes will range
between one and four per probe array. Based upon the quantity of probes in a particular array, use one of the
following generic layouts for determining proper probe spacing and configurations.

ELECTRA-flo Probe Arrays – Ultra – Installation Procedure
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GENERAL PROBE INSTALLATION
• Allprobes for an array arepackaged together when shipped from the Factory. The probes and the transmitter for a
particular measurement location can be identified by means of the ESID # on the end of each probe, transmitter
package, and the transmitter itself.
• Each probe has an airflow arrow on the mounting plate to assist in correct installation relative to the direction of
airflow in the duct.
• For rectangular ducts, the standard arrangement is for the probe(s) to be mounted on the short side (height) of the
duct, with the probe(s) running parallel with the long dimension (width) of the duct. Refer to Page 3 to determine
probespacing.
• For circular ducts with more than one probe, the probes must be staggered along the axis of the duct to provide
clearance as they cross over each other in the center. The radial dimension (R) on the outside of a duct of known
diameter(D) with N (quantity) of probes can be determined bythe following formula:
•For probes larger than 72", do not attempt to install with just one person.
•For probes 96" or more in length, refer to the next page.
N
2
D14.3
R=
The ESID # on the Transmitter and on the Probe(s) must match.
DO NOT MIX AND MATCH
Confirm the number of Probes needed for each Transmitter by
referring to the provided Factory Set-Up Sheet.
CAUTION: DO NOT BEND PROBES

ELECTRA-flo Probe Arrays – Ultra – Installation Procedure
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INSTALLING PROBES 96" OR MORE IN LENGTH
ELECTRA-floprobearrays having probe lengthsbetween96" and 144" areprovidedwith a probe centersupport
assembly to structurally support against the effects of gravity, vibration, and the force of the moving airflow.
AllELECTRA-flo probes mustbe handled carefullyduring installation toavoid damaging any of the thermal sensors.
Dueto their greater cantilevered weight,larger probes will require two people during installation; one outside the duct
to insert the probe, and a second person inside the duct to support and guide the probe into its end support hole.
After the ELECTRA-flo probes are fully mounted in the duct, install the center support by connecting it to the
individualprobesusing the U-bolt hardwareprovided. The center support goeson the downstream sideofthe
ELECTRA-floprobes(seeFigurebelow):
– CAUTION –
DO NOT ATTEMPT TO INSTALL ELECTRA-FLO PROBES
LARGER THAN 72" WITH JUST ONE PERSON.
SUPPORTCLAMPDETAIL
Tighten the self-locking nuts so the center support is firmly attached to the probe(s), but not so tight as to deform
either the center support or the probes. Slide the center support mounting brackets outward so they come in
contact with the duct walls, then secure in place with the end support screws provided.
Finally, position the center support so that the clearance between the center support and the duct wall is the same
at both ends, then tighten the mounting bracket bolts. See Figure below:
MOUNTINGBRACKETDETAIL
FrontView Side View
FrontView Side View

ELECTRA-flo Probe Arrays – Ultra – Installation Procedure
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EXTERNALLY MOUNTED PROBES.
• Mounting requires a 1.25" hole on one side of the duct, and a 3/8" hole on the other side for the threaded end
support for ducts wider than 18". See FigureA below for mounting details.
FigureA
•External mount probes are shipped with a 1/4" thick neoprene mounting gasket.
INTERNALLY MOUNTED PROBES.
• Mounting requires a single 1/2" diameter hole to allow the signal cable to be run to the transmitter. See Figure B
belowfor mounting details.
FigureB

ELECTRA-flo Probe Arrays – Ultra – Installation Procedure
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CABLE CONNECTIONS.
• All cables to connect the probes and transmitter are included.
• Allprobeshave integral cablesterminatedwith positive lockingplug-in connectors.
• The cable length on each probe has been Factory selected based upon size of the duct and the quantity of
probes. Cables connecting probe to probe will range in length from 2' to 5'. The one probe that connects to the
transmitterwill have a standard length 10' cable, with optional 50'and 100' longcables.
• Multiple externally mounted probes connect to each other in a daisy chain methods, with the first or closest
probe in the chain connecting to the transmitter. See Figure below.
• Multiple internally mounted probes are connected in parallel to a central junction box mounted inside the duct,
with the junction box connecting to the transmitter. See Figure below.

ELECTRA-flo Probe Arrays – Ultra – Installation Procedure
TRANSMITTER INSTALLATION.
• The transmitter must be located so that the single cable from the probe array will reach the receptacle in the
bottom of the transmitter. Standard cable length is 10', with optional 50' and 100' cables available.
• Mount the transmitter to a vertical surface in an upright position. Avoid locations subject to excessive amounts of
vibration.
• The transmitter's enclosure has a NEMA 1 rating, requiring that it be mounted in a moderately clean indoor
environmentwithtemperaturerangesbetween–20ºFand140ºF.
• Consultthe ELECTRA-flo TransmitterO&M manual fordetails related topower and signalwire connections,
configurationoptions,andstart-up.
• Seedrawings below for transmitterdimensions and installation clearances.
Thermal Air Flow Transmitter
ELECTRA-flo
MIR ONITORA
CORPORATION
1050 Hopper Avenue • Santa Rosa, CA 95403 • 707-544-2706 • www.airmonitor.com
CUSTOMER SERVICE.AirMonitor Corporation provides in-house technical support forall our products:
Monday through Friday, 7 am to 5 pm (pst)
Phone:[phone]or1-800-AIRFLOW / Fax:[phone]
If after contacting the Customer Service Department it is determined that equipment will require return toAir Monitor
Corporationforfurtherrepair,a ReturnAuthorization number willbeissued.AConfirmationofReturnAuthorizationwith
shippinginstructionswill be sent via facsimile.Equipmenttobe returned toAirMonitor should be returnedin its original
shipping container if possible. If this is not possible, ensure equipment is packaged sufficiently to protect it during
shipment. Caution: All damage occurring during transit is the Customer’s responsibility.
List the Return Authorization (R/A) number on the packing list and clearly mark this number on the outside of each
shipping container. Costs associated with the return of equipment to Air Monitor Corporation are the customer’s
responsibilityregardless whethertherepair/returnisunderwarranty.Oncethe CustomerServiceDepartmentdetermines
that the equipment repair is under warranty, the item will be repaired and returned to the customer at no charge. If the
equipment is not under warranty, customer will need to approve a repair quote which will be invoiced along with return
shippingcharges.
INSTALL35A(07/07)