Extech Instruments 461893 User manual

User's Manual
Digital Photo Tachometer
Model 461893

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Introduction
Congratulations on your purchase of the Extech 461893 hoto Tachometer. This device provides
non-contact measurements over a wide range (5 to 100,000 R M). A reflective mark on the object
to be measured is used as a target for the meter's integral light beam. Careful use of this meter will
provide years of reliable service.
Specifications
General Specifications
Meter circuitry Custom one-chip LSI microprocessor
Time base Quartz crystal
Display 5-digit (99999 count) 0.4" (10mm) multi-function LCD
Measurement 5 to 99,999 R M in 2 ranges
Range select Automatic
Data Recording LAST / MIN / MAX readings stored for later recall
Sampling time 1 second (over 60 rpm)
Target distance 2 to 6" (50 to 150mm) depending on ambient light
Operating Temperature 32°F to 122°F (0°C to 50°C)
ower Supply 4 x 1.5V 'AA' batteries
ower Consumption Approximately 150 mA
Weight 8.8 oz. (250 g) including battery
Size 6.7 x 2.8 x1.5" (170 x 72 x 37mm)
Accessories Reflective tape (23") and carrying case
Range Specifications
Measurement Range Resolution Accuracy
R M 5 to 999.9 R M
1,000 to 99,999 R M
0.1 R M
1 R M
+(0.05% + 1 digit)
+(0.05% + 1 digit)

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Meter Description
1. Photo source
2. LCD Display
3. emory record button
4. Battery compartment on rear
5. easure button
Meter Operation
RPM Measurements
1. Apply a small piece of reflective tape to the object under test as shown below.
2. Point the meter's photo source at the tape on the object and press the easure button. Hold the
meter from 2 to 6" (50 to 150mm) from the reflective tape depending on ambient light.
3. Check that the onitor icon flashes on the LCD indicating that the meter is sensing a reflection
from the tape. If the monitor does not appear check that the light source is hitting the reflective
tape at a 90
o
angle.
4. Release the easure button when the display stabilizes (2 seconds approx.). Note the LCD
RP reading.
5. If the RP value is < 50, apply additional pieces of reflective tape (four pieces are shown
below). Divide the LCD reading by the number of reflective tapes to compute the actual RP
(Actual RP = Reading / 4).
Photo Tachometer
Rotating object
Reflective tape
Light source
and reflection

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Memory Record and Recall
The meter automatically records the Minimum and Maximum readin s. These represent the lowest
and hi hest readin s measured from the moment the Measure button is pressed to the moment it is
released. The Last readin is also recorded; this is the last measurement taken before the Measure
button is released. These stored readin s can be displayed on the LCD usin the Memory button as
described below:
1. Press once and hold: The Last readin is displayed followed by "LA"
2. Press a ain and hold: The Maximum value is displayed followed by the word "UP"
3. Press a ain and hold: The Minimum value is displayed followed by "dn"
Special Measurement Considerations
1. The non-reflective area of the object under test must always be reater than the reflective tape
area.
2. If the shaft of the object under test is reflective, it should be covered with black tape or paint
before attachin reflective tape.
Battery Replacement
The low battery indication appears as "LO" on the display. To replace the batteries:
1. Slide the rear cover off the battery compartment in the direction indicated by the arrow.
2. Replace the four 1.5V 'AA' batteries and the battery compartment cover.
3. Remove the batteries if the instrument will be stored for lon periods of time.

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Warranty
FLIRSystems, Inc. warrantsthisExtech Instruments brand device to befree of defects in parts and workmanship for one year
from date of shipment (a six month limitedwarranty appliesto sensorsand cables). If it should becomenecessary to return the
instrument for serviceduring or beyond thewarranty period, contact theCustomer Service Department for authorization. Visit
the website www.extech.com for contact information. A Return Authorization (RA) number must be issued beforeany product is
returned. The sender isresponsible for shipping charges, freight, insurance and proper packaging to prevent damagein transit.
Thiswarranty does not apply to defects resulting from action of theuser such asmisuse, improper wiring, operation outsideof
specification, improper maintenanceor repair, or unauthorized modification. FLIRSystems, Inc. specifically disclaimsany implied
warrantiesor merchantability or fitnessfor a specific purpose and will not beliablefor anydirect, indirect, incidental or
consequential damages. FLIR’stotal liability is limited to repair or replacement of theproduct. The warranty set forth above is
inclusive and no other warranty, whether written or oral, isexpressed or implied.
Calibration, Repair, and Customer Care Services
FLIRSystems, Inc. offersrepair and calibration servicesfor the Extech Instrumentsproductswe
sell. NISTcertification for most products isalso provided. Call the Customer Service Department for
information on calibration servicesavailable for thisproduct. Annual calibrationsshould be
performed to verify meter performance and accuracy. Technical support and general customer
service isalso provided, refer to the contact information provided below.
Copyright © 2013 FLIRSystems, Inc.
All rights reserved includingthe right of reproduction in whole or in part in any form
www.extech.com
Support Lines: U.S. [phone]; International: [phone]
Technical Support: Option 3; E-mail: [e-mail]
Repair & Returns: Option 4; E-mail: [e-mail]
Product specificationsare subject to change without notice
Please visit our website for the most up-to-date information
www.extech.com
FLIRCommercial Systems, Inc., 9 Townsend West, Nashua, NH03063 USA
ISO9001 Certified

461893-EN V1.4 8/13 6
Garantie
FLIRSystems, Inc. garantit que cet appareil Extech Instrumentsest exempt de défautsmatériaux et de fabrication pendant un
an à partir dela date d’envoi (une garantie limitée de six mois s’appliqueaux capteurset aux câbles). Si le renvoi de l’appareil
pour réparation devient nécessaire durant ou aprèsla périodedegarantie, contactezle serviceclient pour autorisation. Pour
obtenir lescoordonnées, visitez lesite Web suivant : www.extech.com. Un numéro d’autorisation deretour (AR) doit être délivré
avant tout retour de produit. L expéditeur prend à sa charge lesfraisd’expédition, le fret, l’assurance et l’emballage correct de
l’appareil afin deprévenir toute détérioration durant letransport. Cette garantie nes’appliquepasauxdommagesimputablesà
l’utilisateur, telsque l’usage impropre ou abusif, un mauvaiscâblage, une utilisation non conforme aux spécifications, un
entretien ou uneréparation incorrecte, ou toutemodification non autorisée. FLIRSystems, Inc. déclinera spécifiquement toute
garantieou qualité marchande ou aptitudeà l’emploi prévu, et nesera en aucun castenu responsable pour tout dommage
conséquent, direct, indirect ou accidentel. La responsabilité totaledeFLIRest limitée à la réparation ou au remplacement du
produit. La garantiedéfinieci-dessusest inclusiveet aucune autre garantie, écrite ou orale, n’est expriméeou implicite.
Calibrage, réparation et servicesaprès-vente
FLIRSystems, Inc. offre desservices de calibrage et de réparation pour lesproduitsExtech
Instrumentsque nouscommercialisons. Nous fournissonségalement une certification NISTpour la
plupart desproduits. Contactez notre service client pour toute information sur lesservices de
calibrage disponiblespour ce produit. Un calibrage doit être effectué chaque année pour vérifier
lesperformanceset la précision du mètre. Nousoffrons également une assistance technique et un
service à la clientèle. Veuillez vousreporter aux coordonnéesfournies ci-dessous.
Copyright © 2013 FLIRSystems, Inc.
Tousdroits réservés, y compris lareproduction partielle ou totale sousquelque forme que ce soit.
www.extech.com
Lignesd’assistance: États-Unis(877) 439-8324; international: [phone]
Service d’assistance technique: Option 3 ; E-mail : [e-mail]
Réparationset retours: Option 4 ; E-mail : [e-mail]
Lesspécificationsproduit sont sujettesà modificationssanspréavis.
Pour lestoutesdernièresinformations, veuillezvisiter notre site Web.
www.extech.com
FLIRCommercial Systems, Inc., 9 Townsend West, Nashua, NH03063 USA
Certifié ISO9001

461893-EN V1.4 8/13 7
Garantía
FLIRSystems, Inc., garantiza este dispositivo marca Extech Instruments para estar libre dedefectosen partes o mano de obra
durante un año a partir dela fecha deembarque (se aplica una garantía limitada deseismesespara cablesy sensores). Si fuera
necesario regresar el instrumento para servicio durante o después del periodo de garantía, llameal Departamento deServicio a
Clientespara obtener autorización. Visite www.extech.com para Información decontacto. Se debeexpedir un número de
Autorización deDevolución (AD) antesderegresar cualquier producto. El remitenteesresponsable delosgastosde embarque,
flete, seguro y empaque apropiado para prevenir dañosen tránsito. Esta garantía no se aplica a defectosresultantesdelas
accionesdel usuario como el mal uso, alambrado equivocado, operación fuera de las especificaciones, mantenimiento o
reparación inadecuada o modificación no autorizada. FLIRSystems, Inc., rechaza específicamente cualesquier garantías
implícitaso factibilidad decomercialización o idoneidad para cualquier propósito determinado y no será responsable por
cualesquier dañosdirectos, indirectos, incidentaleso consecuentes. La responsabilidad total deFLIRestá limitada a la
reparación o reemplazo del producto. La garantía precedente esinclusiva y no hayotra garantía ya sea escrita u oral, expresa o
implícita.
Serviciosde calibración, reparación y atención a clientes
FLIRSystems, Inc., ofrece servicios de reparación y calibración para losproductosque vendemos
de Extech Instruments. Ademásofrecemoscertificación NISTpara la mayoría de losproductos.
Llame al Departamento de Servicio al Cliente para solicitar información de calibración para este
producto. Para verificar el funcionamiento y precisión se debe realizar la calibración anual. Además
se provee Soporte Técnico y serviciosgeneralesal cliente, consulte la información de contacto en
seguida.
Copyright © 2013 FLIRSystems, Inc.
Reservadostodoslosderechos, incluyendo el derecho de reproducción total o parcial en cualquier medio
www.extech.com
Líneasde soporte: EE.UU. [phone]; Internacional: [phone]
Soporte Técnico Opción 3; correo electrónico: [e-mail]
Reparación / Devoluciones: Opción 4; correo electrónico: [e-mail]
Lasespecificacionesdel producto están sujetas a cambiossin aviso
Por favor visite nuestra página en Internet para la información másactualizada
www.extech.com
FLIRCommercial Systems, Inc., 9 Townsend West, Nashua, NH03063 USA
Certificado ISO9001