Lafayette 16011, 16012 User Instructions

Models 16011 & 16012 User’s Manual

Models 16011 & 16012

AESTHESIOMETERS

U

SER INSTRUCTIONS

3700 Sagamore Parkway North
P.O. Box 5729 • Lafayette, IN 47903 USA
Tel: [phone] • 800.428.7545
Fax: [phone]
E-mail: [e-mail]

www.lafayetteinstrument.com

Fax: [phone] . www.lafayetteinstrument.com . E-mail: [e-mail]

© 2004 by Lafayette Instrument Company, Inc. All Rights Reserved- Rel. 2.19.04

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Lafayette Instrument Aesthesiometer s

Table of Contents:

System Description 3
Operation 3
Ordering Information 4

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3700 Sagamore Parkway North . PO Box 5729 . Lafayette, IN 47903 USA . Ph: 765-423-1505

Model 16012

Models 16011 & 16012 User’s Manual

DESCRIPTION:

The Model 16011 Aesthesiometer is a basic sensory device designed to measure a subject’s
perception of the cutaneous two-point threshold. The unit is designed with calibrated Vernier
construction for accurate measurements and strong brass tips insulated with a coating of vinyl to
minimize the influence of temperature on touch and/or pain thresholds. In addition, the Model
16012 incorporates a single third point adding to the flexibility of the unit since it is now possible to
alternate between single and double point stimulation without changing the vernier setting.

OPERATION:

1. Blindfold the subject and set the two points of the Aesthesiometer close together.

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2. Both points are touched to the skin simultaneously and the subject is requested to report
whether he feels one or two points.

3. The separation of the points should be gradually made larger until the subject reports two
points. (As a check, only one point should be touched on some trials either by separating the
Model 16011 points so that only one can be used or by using the convenient third point of the
Model 16012.)

4. The distance separating the points can be read directly from the calibrated scale on the
Aesthesiometer, giving an accurate measure of the subject’s two point threshold based on his
reported sensations.

When different areas of the skin are tested in this manner, it will be found that the two point
thresholds differed markedly. For example, the threshold is very small on the tip of the
tongue and quite large on the upper arm and parts of the back.

If the procedure is repeated a number of times on the same subject using the same skin area, it
will be found that the distance separating the two points become smaller and smaller,
indicating an increase in sensitivity brought about by practice.

Transfer effects can be studied by giving the subject one or two trials on one arm to determine
the threshold there, then giving him a large number of trials on the corresponding area of the
other arm, and then again determining his threshold on the first arm. It will be found that
there is a large increase in sensitivity in the first arm, even though there was no practice there,
brought about by the transfer effect from the second arm.

Fax: [phone] . www.lafayetteinstrument.com . E-mail: [e-mail]

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Lafayette Instrument Aesthesiometer s

Lafayette Instrument Aestesiometers

Models 16011 & 16012 User’s Manual

Ordering Information:

All phone orders must be accompanied by a hard copy of
your order. All must include the following information:

1) Complete billing and shipping addresses

2) Name and department of end user

3) Model number and description of desired item(s)

4) Quantity of each item desired

5) Purchase order number or method of payment

6) Telephone number

DOMESTIC TERMS

There is a $50 minimum order. Open accounts can be extended
to most recognized educational institutions, hospitals and
government agencies. Net amount due 30 days from the date
of shipment. Enclose payment with the order; charge with
VISA, MasterCard; or pay COD. We must
have a hard copy of your order by mail or fax. Students,
individuals and private companies may call for a credit
application.

INTERNATIONAL PAYMENT INFORMATION

There is a $50 minimum order. Payment must be made in
advance by: draft drawn on a major US bank; wire transfer to

our account; charge with VISA, MasterCard;

or confirmed irrevocable letter of credit. Proforma
invoices will be provided upon request.

RETURNS

Equipment may not be returned without first receiving a Return
Goods Authorization Number (RGA).

When returning equipment for service, please call Lafayette
Instrument to receive a RGA number. Your RGA number will
be good for 30 days. Address the shipment to: Lafayette
Instrument Company, 3700 Sagamore Parkway North,
Lafayette, IN 47904, U.S.A. Shipments cannot be received at
the PO Box. The items should be packed well, insured for full

value, and returned along with a cover letter explaining the
malfunction. Please also state the name of the Lafayette
Instrument representative authorizing the return. An estimate
of repair will be given prior to completion ONLY if requested
in your enclosed cover letter. We must have a hard copy of
your purchase order by mail or fax, or repair work cannot
commence.

WARRANTY

Lafayette Instrument guarantees its equipment against all defects
in materials and workmanship to the ORIGINAL PURCHASER
for a period of one (1) year from the date of shipment, unless
otherwise stated. During this period, Lafayette Instrument will
repair or replace, at its option, any equipment found to be
defective in materials or workmanship. If a problem arises,
please contact our office for prior authorization before returning
the item. This warranty does not extend to damaged equipment
resulting from alteration, misuse, negligence or abuse, normal
wear or accident. In no event shall Lafayette Instrument be
liable for incidental or consequential damages. There are no
implied warranties or merchantability of fitness for a particular
use, or of any other nature. Warranty period for repairs or
used equipment purchased from Lafayette Instrument is 90 days.

DAMAGED GOODS

Damaged equipment should not be returned to Lafayette
Instrument prior to thorough inspection.

When a shipment arrives damaged, note damage on delivery
bill and have the driver sign it to acknowledge the damage.
Contact the delivery service, and they will file an insurance
claim. When damage is not detected at the time of delivery,
contact the carrier and request an inspection within 10 days of
the original delivery. Please call the Lafayette Instrument
Customer Service Department for a return authorization for
repair or replacement of the damaged merchandise.

3700 Sagamore Parkway North
P.O. Box 5729 • Lafayette, IN 47903 USA
Tel: [phone] • 800.428.7545
Fax: [phone]
E-mail: [e-mail]

www.lafayetteinstrument.com

3700 Sagamore Parkway North . PO Box 5729 . Lafayette, IN 47903 USA . Ph: 765-423-1505

Lafayette Instrument Co. Europe

4 Park Road, Sileby,
Loughborough, Leics., LE12 7TJ. UK.
Tel: [phone]
Fax: [phone]
E-mail: [e-mail]