461893 - Odometer Extech - Free user manual and instructions

Product Type	Odometer
Brand	Extech
Model	461893
Display	Digital LCD screen
Measurement range	0 to 99999 km/mi
Resolution	0.01 km/mi
Accuracy	±0.1%
Main functions	Total counter, reset, hold
Power supply	CR2032 3V battery
Battery life	Approximately 1 year
Dimensions	120 x 50 x 25 mm
Weight	80 g
Operating temperature	0°C to 50°C
Certifications	CE, RoHS
Warranty	1 year (parts and labor)
Maintenance and cleaning	Clean with a dry cloth, avoid moisture
Safety	Use according to specifications, do not expose to shocks
Calibration	Recommended annually to maintain accuracy

Frequently Asked Questions - 461893 Extech

How to use the Extech 461893 odometer?

Turn on the device using the ON button. To start measuring, follow the desired path. The screen displays the distance in real time. Use the RESET button to reset to zero, and HOLD to freeze the value.

What battery to use?

The device uses a CR2032 3V battery. To replace it, open the battery compartment at the back, insert the battery respecting polarity, then close.

How to change the measurement unit?

The unit is selected via an internal switch or a key combination (see manual). By default, the unit is kilometers. To switch to miles, press the UNIT button for 3 seconds.

The odometer does not turn on, what to do?

Check the battery: replace if necessary. Ensure contacts are clean. If the problem persists, contact Extech customer service.

How to calibrate the odometer?

An annual calibration is recommended. Contact Extech customer service ([e-mail]) to schedule a calibration with NIST certificate.

The display flashes or shows abnormal values

This may indicate a low battery. Replace the battery. If the problem persists, perform a reset by removing the battery for 30 seconds.

What is the accuracy of this odometer?

The accuracy is ±0.1% of reading. For optimal accuracy, an annual calibration is necessary.

Can it be used outdoors in the rain?

The device is not waterproof. Avoid moisture and rain. Store it in a dry place after use.

How to contact technical support?

For any assistance, call [phone] (USA) or [phone] (international), or email [e-mail].

Are spare parts available?

Spare parts are not listed. For any repair, contact after-sales service at [e-mail]. The device is not designed for user repair.

USER MANUAL 461893 Extech

Congratulations on your purchase of the Extech 461893 Photo Tachometer. This device provides non-contact measurements over a wide range (5 to 100,000 RPM). 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 RPM 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)
Power Supply	4 x 1.5V 'AA' batteries
Power 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
RPM	5 to 999.9 RPM1,000 to 99,999 RPM	0.1 RPM1 RPM	± (0.05% + 1 digit) ± (0.05% + 1 digit)

1. Photo source
2. LCD Display
3. Memory record button
4. Battery compartment on rear
5. Measure 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 Measure button. Hold the meter from 2 to 6" (50 to 150mm) from the reflective tape depending on ambient light.
3. Check that the Monitor 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^ angle.
4. Release the Measure button when the display stabilizes (2 seconds approx.). Note the LCD RPM reading.
5. If the RPM 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 RPM (Actual RPM = Reading / 4).

Memory Record and Recall

The meter automatically records the Minimum and Maximum readings. These represent the lowest and highest readings measured from the moment the Measure button is pressed to the moment it is released. The Last reading is also recorded; this is the last measurement taken before the Measure button is released. These stored readings can be displayed on the LCD using the Memory button as described below:

1. Press once and hold: The Last reading is displayed followed by "LA"
2. Press again and hold: The Maximum value is displayed followed by the word "UP"
3. Press again 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 greater 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 attaching 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 long periods of time.

Warranty

FLIR Systems, Inc. warrants this Extech Instruments brand device to be free of defects in parts and workmanship for one year from date of shipment (a six month limited warranty applies to sensors and cables). If it should become necessary to return the instrument for service during or beyond the warranty period, contact the Customer Service Department for authorization. Visit the website www.extech.com for contact information. A Return Authorization (RA) number must be issued before any product is returned. The sender is responsible for shipping charges, freight, insurance and proper packaging to prevent damage in transit. This warranty does not apply to defects resulting from action of the user such as misuse, improper wiring, operation outside of specification, improper maintenance or repair, or unauthorized modification. FLIR Systems, Inc. specifically disclaims any implied warranties or merchantability or fitness for a specific purpose and will not be liable for any direct, indirect, incidental or consequential damages. FLIR's total liability is limited to repair or replacement of the product. The warranty set forth above is inclusive and no other warranty, whether written or oral, is expressed or implied.

Calibration, Repair, and Customer Care Services

FLIR Systems, Inc. offers repair and calibration services for the Extech Instruments products we sell. NIST certification for most products is also provided. Call the Customer Service Department for information on calibration services available for this product. Annual calibrations should be performed to verify meter performance and accuracy. Technical support and general customer service is also provided, refer to the contact information provided below.

Support Lines: U.S. [phone]; International: [phone]

Technical Support: Option 3; E-mail: [e-mail]

Repair & Returns: Option 4; E-mail: [e-mail]

Product specifications are subject to change without notice

Please visit our website for the most up-to-date information

www.extech.com

FLIR Commercial Systems, Inc., 9 Townsend West, Nashua, NH 03063 USA

ISO 9001 Certified

Copyright © 2013 FLIR Systems, Inc.

All rights reserved including the right of reproduction in whole or in part in any form

www.extech.com

Garantie

Copyright © 2013 FLIR Systems, Inc.

Copyright © 2013 FLIR Systems, Inc.