Materials Testing Machine / Materials Testing System / Comprehensive Materials Testing System

Introduction

The Materials Testing Machine is a device for measuring force and displacement for various materials as they are stretched, compressed, sheared, or bent. The machine features a built-in load cell (strain gauge transducer) capable of measuring up to 7100 N (1600 lb) of force, and an optical encoder module that measures the displacement of the load bar. A crank-and-gear system raises or lowers the load bar on two leadscrews. Force and displacement data can be recorded, displayed, and analyzed by PASCO Capstone data collection software via a PASPORT interface.

SPARKvue data collection software should not be used with this apparatus.

Do not discard the packaging in which the equipment is shipped, including the foam inserts. The packaging serves as a convenient solution for transportation and long-term storage.

Included Equipment

Equipment included in the Materials Testing Machine (ME-8236):

• Materials Testing Machine
• Calibration rod and nut
• Load bar round nut
• 2× safety shields

Note that PASCO Capstone and a PASPORT interface, such as the AirLink Interface (PS-3200), are required for data collection. These components are not included with the Materials Testing Machine (ME-8236) and must be purchased separately.

Equipment included in the Materials Testing System (ME-8230):

• All components included in the Materials Testing Machine
• AirLink Interface (PS-3200)
• PASCO Capstone Single User License
• 10× Aluminum Tensile Samples (ME-8231)
• 10× Brass Tensile Samples (ME-8232)
• 10× Annealed Steel Tensile Samples (ME-8233)
• 10× Acrylic Tensile Samples (ME-8235)
• 10× Steel Tensile Samples (ME-8243)

Equipment included in the Comprehensive Materials Testing System (ME-8244):

• All components included in the Materials Testing System
• Stress Strain Apparatus Coupons, Plastic (AP-8222)
• Stress Strain Apparatus Coupons, Metal (AP-8223)
• Materials System Storage Base (ME-8229)
• Bending Accessory (ME-8237)
• Flat Coupon Fixture (ME-8238)
• Shear Accessory (ME-8239)
• Photoelasticity Accessory (ME-8241)
• Structures Beam Fixture (ME-8242)
• Clevis Grip (ME-8245)
• 10-32 Adapter (ME-8246)
• Compression Accessory (ME-8247)
• Four-Point Load Anvil (ME-8249)
• Cast Beam Spares Set (ME-6983)
• Thin I-Beams (ME-7012)

Tensile Sample Information

Tensile samples are included with the Materials Testing System and are used for tensile strength testing. The samples include four metals (aluminum, brass, annealed steel, and steel) and two plastics (acrylic and polyethylene). All tensile samples have an overall length of 90 mm (3.5 in). The center section of each sample has a diameter of about 3.3 mm (0.131 in). The threaded ends are metric M12 × 1.75. Samples can also be ordered separately in packs of 10.

Diagram Description: Two dimensions are shown: 31.7 mm and 19 mm, likely related to sample dimensions or fixture spacing.

The table below shows typical values of tensile strength and Young's Modulus for the provided tensile samples.

*Tensile strength values for plastics depend on the rate at which the sample is stretched. Provided values were recorded with speeds of <5 mm/min; measured values may vary significantly at higher speeds.

Features

Diagram Description: An illustration of the Materials Testing Machine (ME-8236) with numbered components.

1. Leadscrews: Rotate in response to the motion of the crankshaft.
2. Velcro® material: Loop material on the front and back of the load bar. Hook material on safety shields. Used to secure shields during testing.
3. Load bar: Holds the top of tensile samples and other accessories.
4. 7100 N load cell: Measures and records vertical force data, and holds the bottom of tensile samples and other accessories.
5. Base
6. Crankshaft: Turn clockwise to move the load bar upward. Turn counterclockwise to move the load bar downward.
7. Sensor cable: Connects the apparatus to a PASPORT interface.
8. Safety shield: Attach to the Velcro® loop material on the front and back of the load bar. Always use shields when performing any experiment that could cause the sample to break!
9. Load bar round nut: Connects one end of a tensile sample to the load bar, or attaches an accessory or adapter to the bottom of the bar.
10. Calibration rod and nut: Used to determine how much the Materials Testing Machine itself flexes as force is applied in tension or compression experiments.

Setup

Setting up the Materials Testing System involves securing the machine to a sturdy support and setting up data collection in PASCO Capstone.

ALWAYS wear adequate eye protection when using the Materials Testing Machine or its accessories.

Securing the Materials Testing Machine

There are two holes through the base of the Materials Testing Machine that can be used to bolt the machine to a sturdy support. The two 6 mm diameter holes are 15 cm apart, with one on each side of the label, as shown in Figure 1.

Figure 1 Description: An illustration showing the base of the Materials Testing Machine with two holes marked for mounting, along with labels indicating the PASCO logo and safety warnings.

Bolting the machine down will avoid the problem of the apparatus moving during a sample test. The Materials System Storage Base (ME-8229) is designed for two purposes: to provide a sturdy base to which the machine can be bolted, and to serve as a storage place for accessories, tools, and other items in the Comprehensive Materials Testing System.

The Storage Base includes two screws and two washers and has two threaded holes matching the spacing of the holes in the machine's base. To install the Storage Base:

1. Place the Materials Testing Machine onto the Storage Base, aligning the holes in the machine's base with the threaded holes in the Storage Base.
2. Place the washers onto the screws.
3. Insert one of the screws into a hole in the base of the machine and into the threaded hole in the Storage Base below.
4. Tighten the screw using your fingers.
5. Repeat Steps 3 and 4 for the other screw.
6. Use a 7/16 inch (11 mm) wrench to secure the screws in place.
7. Recommended: Use C-clamps (not included) to fasten the Storage Base to a sturdy bench or table.

The Materials Testing Machine and Storage Base can also be bolted directly to a table or bench, as shown in Figure 2. The Storage Base has holes at each of its corners to allow this type of connection.

Figure 2 Description: An illustration showing the Storage Base fastened to a table with a bolt and a C-clamp.

Software Setup

Follow the steps below to connect the Materials Testing Machine's sensors to PASCO Capstone and set up data collection.

To connect the apparatus to PASCO Capstone:

1. Turn on Capstone, then click Hardware Setup in the Tools palette.
2. Connect the AirLink (PS-3200) or another chosen PASPORT interface to Capstone. For instructions on doing this, see the interface's manual or the Capstone online help.
3. Plug the sensor cable on the apparatus into a PASPORT port on the interface. The program will automatically detect and recognize the Materials Testing Machine.

To set up data collection:

PASCO provides Capstone workbook files containing various pre-configured experiments for use with the Materials Testing System and its accessories. A list of these labs can be found at www.pasco.com/resources/lab-experiments/collection/35.

To create a new display, double-click the icon for the appropriate display type in the Displays palette, then click each <Select Measurement> box and select the desired measurement from the list.

Calibration

If the Materials Testing Machine were perfectly rigid, it would always give completely accurate measurements of force and displacement during compression and tension experiments. However, the machine is not perfectly rigid and will "flex" slightly while in use. To correct for this, a calibration procedure can characterize the machine's stiffness and adjust the raw position data, leaving only the displacement due to the distortion of the test sample. This "compliance calibration" information can be stored within the machine or in a Capstone file. Compliance calibration should always be applied during an experiment!

The calibration rod and nut can be used to calibrate the machine for compression or tension. The calibration rod will not change shape significantly. Thus, any displacement measured when using the rod is due to the flexing of the Materials Testing Machine itself. For example, a sample graph shows that the machine flexes by 0.2 mm per 3750 N of force while the calibration rod is being stretched. This "flex" amount must be subtracted to obtain accurate data.

PASCO provides a Capstone workbook file walking the user through creating a compliance calibration. To download this file, visit www.pasco.com/resources/lab-experiments/collection/35 and select Compliance Calibration Tutorial.

Graph Description: A graph showing Position (m) on the y-axis and Force (N) on the x-axis. It displays a polynomial fit curve and indicates a maximum force of 7023N. The fit parameters (A, B, C, D, E, F) and RMSE are listed.

Mount the calibration rod

To mount the calibration rod for tension:

1. Screw the short threaded end of the calibration rod into the top of the load cell.
2. Lower the load bar until the top of the calibration rod's long threaded end protrudes through the hole in the bar.
3. Screw the load bar round nut onto the top of the calibration rod. (See Figure 3.)

Figure 3 Description: An illustration showing the calibration rod mounted for tension experiments, with the rod screwed into the load cell and passing through the load bar, secured by the round nut.

4. Attach the Velcro® hook material on the two safety shields to the loop material on the front and back of the load bar. Adjust the shields' position so that they will block any fragments of the calibration rod if it accidentally breaks.

To mount the calibration rod for compression:

1. Screw the short threaded end of the calibration rod into the top of the load cell.
2. Screw the calibration nut onto the long threaded end of the calibration rod until the nut is at the bottom of the threaded section.
3. Lower the load bar until the bottom of the bar rests on the top of the calibration nut.
4. Attach the Velcro® hook material on the two safety shields to the loop material on the front and back of the load bar. Adjust the shields' position so that they will block any fragments of the calibration rod if it accidentally breaks.

Optional: Change the Sign

By default, the Materials Testing Machine treats force and position values during tension experiments as negative. To make this more convenient, the sign convention can be changed to positive before calibrating the sensor for tension experiments.

1. Select Hardware Setup from the Tools palette.
2. Click the Properties icon next to the sensor's name.
3. The "Change Sign" box in the Properties window is unchecked by default. This means position and force will both be positive as the load bar moves down (compression). For tension experiments, check this box to enable sign changing.
4. Click OK to exit the Properties window.

Calibration Options

To access the calibration options, select Calibration from the Tools palette. Ensure that "Materials Testing System: Compliance Calibration" is selected as the measurement type to be calibrated, then click Next. This will present five options:

• Import Calibration From Sensor: Import a compliance calibration stored on the sensor to the current Capstone file.
• Use Raw Values: Temporarily disable compliance calibration for the experiment.
• Manage Existing Calibration: Rename or delete a compliance calibration stored in the file, or upload it to the sensor.

The following sections explain some key uses of these functions.

Create a New Calibration

1. From the calibration options, select Create New Calibration and click Next. A graph display tracking Position versus Force will automatically be created.
2. If not already done, set up the apparatus for calibration, following the instructions from "Mounting the calibration rod". Ensure the bar is at a position where it is not yet exerting force on the rod.
3. Click Next.
4. When ready to collect calibration data, click Record . The program will automatically begin recording position and force data.
5. Rotate the crank to cause the load bar to exert force on the calibration rod. For tension tests, rotate clockwise to move the bar up. For compression tests, rotate counterclockwise to move the bar down.
6. Once your calibration covers the full range of expected force values, click Stop to end data recording. The graph display will automatically plot a best fit curve of the collected data.

Figure 4 Description: An illustration showing the calibration rod mounted for compression experiments, with the rod screwed into the load cell and the load bar resting on the calibration nut.

7. Click Next.
8. The program displays the Curve Fit Editor, allowing adjustment of the best fit curve. You can change the number of terms, enter an "Initial Guess" for coefficients, and lock or unlock coefficients.

If the curve fit was not successful, use trial and error in the Curve Fit Editor to adjust coefficients until the curve fit is successful. Click Update Fit to view the impact of each new coefficient.

9. Once a message says "Curve fit was successful", click Next.
10. Name your compliance calibration, then click Finish.

Calibration Options Summary:

• Create New Calibration: Create and save a new compliance calibration.
• Use Calibration: Enable a compliance calibration loaded into the Capstone file. If the dropdown menu is blank, no calibrations are saved.

Applying and Storing Calibration

Once a new compliance calibration is created, it can be applied by choosing Use Calibration, selecting the calibration name, and clicking Finish.

Store a Calibration on the Sensor

After creating a new calibration, store it on the sensor:

1. From the calibration options, select Manage Existing Calibration, then click Next.
2. Ensure the desired calibration is selected in the dropdown box.
3. Select Save Calibration In Sensor and click Next.
4. Select which calibration slot to overwrite with the new calibration.
5. Click Finish.

The sensor can store up to four compliance calibrations. Unused slots are listed as "Empty Calibration" followed by a number (0-3).

Import an Existing Calibration

1. From the calibration options, select Import Calibration From Sensor.
2. Select the name of a compliance calibration stored on the sensor from the dropdown list.
3. Click Finish to import the selected calibration to the current Capstone file.

Tension Force Data Collection

Once a successful compliance calibration is performed, data collection can begin. Tensile strength testing is a simple experiment requiring the machine, a tensile sample, and the load bar round nut.

Mount a Tensile Sample

1. Select a tensile sample, then place the shorter threaded section into the threaded hole in the top of the load cell.
2. Screw the sample into place until the top edge of the short threaded section is flush with the top of the load cell.
3. Using the crank handle, lower the bar until the longer threaded section of the sample protrudes through the hole in the center of the bar.
4. While holding the tensile sample so it does not turn, screw the round nut onto the longer threaded section until the sample is held tightly in place.
5. Attach the two safety shields to the front and back of the load bar. Adjust the shields' position to block any fragments from the sample.
6. Turn the crank handle clockwise to raise the load bar until resistance is felt, then turn it back counterclockwise by about a quarter turn.

Figure 5 Description: An illustration showing a tensile sample mounted in the machine, secured by the load bar and round nut.

Seat the Sample and Set a Pre-load

To obtain the best data, a test sample should be slightly stretched and relaxed to properly "seat" it and remove slack, and a pre-load should be set.

1. In Capstone, create a graph display of Position versus Force, and a digits display of Force.
2. With the sample mounted, ensure the load bar round nut is slightly loose and not applying force.
3. Click Record .

If the position and force data on the graph do not start at zero, check the sensor properties by opening the Hardware Setup tool and clicking the Properties icon next to the sensor's name. Ensure the "Zero Sensor Measurement at Start" checkbox is checked.

4. Slowly turn the crank clockwise until the force reading is approximately 100 N. Note the position and force data being plotted.
5. With data still recording, slowly turn the crank back counterclockwise, watching the digits display. Continue until the force is between 10 and 20 N, then stop. Do NOT let the force go back to 0 N.
6. Turn the crank clockwise again to increase the force to the same level as before. Observe how the second plot of data compares to the first on the graph.
7. If the second plot of data "tracks" on top of the first plot, the sample is properly seated. If not, repeat the process of applying and unloading force until two consecutive plots track on top of each other (this may take several repetitions).
8. Return the crank to a position where 100 N of force are on the sample, then click Stop .

Since the Materials Testing Machine is set to automatically zero itself the next time recording begins, this puts a pre-load of 100 N on the sample, which improves data quality.

Apply a Tension Force

1. If not already done, create a display in Capstone to measure desired quantities.
2. Click Record to begin collecting data.
3. Turn the crank clockwise to move the load bar upward, applying a tension force to the tensile sample. Observe the data.
4. When the sample breaks, or when the maximum force covered by the compliance calibration is reached, stop recording data.

Comprehensive Materials Testing System Components

The following sections outline the use of various components included in the Comprehensive Materials Testing System (ME-8244). These products can also be ordered separately. For information on collecting data with these components, see the experiment library at www.pasco.com/resources/lab-experiments/collection/35.

Bending Accessory (ME-8237)

The Bending Accessory includes a plunger, a base with two adjustable support anvils, a small hex key, and two mounting screws. The plunger mounts on the bottom of the load bar using the load bar round nut. The base for the anvils screws onto the top of the load cell.

1. The spacing between the support anvils can be adjusted. Use the hex key to loosen the screws holding the anvils, slide them to the desired distance, and tighten the screws.
2. Insert the threaded rod attached to the plunger into the bottom of the hole in the load bar, as shown in Figure 6. Hold the plunger in place.
3. Use the round nut to secure the plunger on the load bar.
4. Remove the screws from the anvil base, then position the base on top of the load cell.
5. Align the threaded holes in the base with the threaded holes near the top of the load cell. Insert the screws and tighten them with the hex key.
6. Place a sample for testing on the two support anvils, as shown in Figure 6.
7. Attach the two safety shields to the front and back of the load bar. Adjust the position of the shields if needed.
8. Turn the crank counterclockwise to lower the load bar and apply a force to the sample via the plunger.

Figure 6 Description: An illustration showing the full setup of the Bending Accessory on the Materials Testing Machine, including the plunger, base, anvils, and sample.

Flat Coupon Fixture (ME-8238)

The Flat Coupon Fixture includes two coupon clamps and a "tee-handle" wrench with a 3/8" socket. One clamp fits into the load cell, the other into the load bar. These clamps mount a Stress Strain Apparatus Coupon (plastic AP-8222 or metal AP-8223) for tensile strength measurements.

Diagram Description: Illustration of the Flat Coupon Fixture with labels for Fixed jaw, Movable jaw, and Hex nut.

1. Loosen, but do not remove, the hex nut on each clamp. The jaws are spring-loaded.
2. Screw the clamp with the shorter threaded section into the load cell.
3. Raise the threaded section of the other clamp up through the hole in the load bar, then use the round nut to hold this upper clamp in place. Do NOT completely tighten the round nut yet.
4. Carefully place one end of a coupon between the jaws of the bottom clamp.
5. While holding the moveable jaw aligned with the fixed jaw, use the wrench and socket to tighten the hex nut.

Each coupon is fragile. Do NOT let the moveable jaw twist out of alignment with the fixed jaw, as this might bend the coupon.

Figure 7 Description: An illustration showing a metal coupon being mounted with the Flat Coupon Fixture. Labels include Front piece, Back piece, Metal coupon, Upper clamp, Lower clamp, Holes, Mounting screws.

6. Rotate the upper clamp so it aligns with the lower clamp.
7. Adjust the position of the load bar to carefully place the free end of the coupon between the jaws of the upper clamp.
8. While keeping the moveable jaw aligned with the fixed jaw, tighten the upper clamp's hex nut with the wrench and socket.
9. While holding the upper clamp parallel to the lower clamp, tighten the round nut slightly to remove any slack in the coupon.
10. Attach the two safety shields to the front and back of the load bar. Adjust the position of the shields if needed.

With the coupon installed, tension experiments similar to those with tensile samples can be conducted.

Shear Accessory (ME-8239)

The Shear Accessory consists of two pieces of hardened steel (front and back), held by screws. A package of Shear Samples (ME-8240) and mounting screws are included. The front piece slides vertically relative to the back piece, which mounts on the load cell. The pieces have matching holes of four different diameters (0.067 in, 0.099 in, 0.130 in, 0.161 in) to fit sample rods of 1/16 in, 3/32 in, 1/8 in, and 5/32 in. Shear Samples include three 1/8 in rods each of aluminum, brass, and mild steel.

Do NOT use any samples with a hardness greater than mild steel, as doing so may damage the Shear Accessory!

1. Using the two mounting screws, attach the back piece of the Shear Accessory to the top of the load cell. Tighten the screws with the included hex key.
2. Raise the front piece by hand as far as it will go. This aligns the holes in the front piece with the matching holes in the back piece.
3. Insert the test sample through the pair of holes that best matches its diameter.

Use a sample long enough to extend about a quarter inch (~6 mm) beyond the front and back pieces. This makes it easier to remove sample remnants without obstructing the shield.

4. Adjust the position of the load bar so that it rests on the top surface of the front piece.
5. Attach the two safety shields to the front and back of the load bar. Adjust the position if needed.
6. When ready, turn the crank handle counterclockwise to move the load bar downward, applying a shearing force to the sample.

Diagram Description: An illustration of the Shear Accessory mounted on the machine, showing the front and back pieces and the sample in place.

Photoelasticity Accessory (ME-8241)

The Photoelasticity Accessory demonstrates the photoelastic phenomenon in clear plastic samples. Viewing samples through crossed polarizers reveals color patterns showing stress distribution. The accessory includes two rectangles of polarizer material that attach to the Materials Testing Machine's load bar Velcro® loop material. For best results, use a light source shining through the polarizers from behind.

Diagram Description: An illustration of the Photoelasticity Accessory setup, showing polarizers attached to the load bar.

The Photoelasticity Accessory also includes a Photoelastic I-Beam Set (ME-7011) with 24 #3 beams and 24 #4 beams. These beams are similar to those in PASCO Structures Systems but have no holes in the web area. They can be mounted using the Structures Beam Adapter (ME-8242). Viewing through the polarizers allows study of stress distribution. The #3 I-beam is 11.5 cm long, and the #4 I-beam is 17 cm long.

Structures Beam Adapter (ME-8242)

PASCO offers various beams for the Materials Testing Machine, including I-beams and other structural elements. The Structures Beam Adapter holds a beam for testing under tension and compression. It consists of two clamps and a hex key. Each clamp has two jaws; one is removable to allow beam insertion. The threaded ends of the clamps fit into the load bar and load cell.

Diagram Description: An illustration showing the two clamps of the Structures Beam Adapter, labeled "Clamp for load bar" and "Clamp for load cell".

1. Using the included hex key, remove the screws that hold the two parts of each clamp together.
2. Put one end of a structures beam (e.g., a #3 I-beam) into one half of the load bar clamp (with the longer threaded section).
3. Use the screws to reattach the other part of the load bar clamp.
4. Repeat Steps 2 and 3 to attach the load cell clamp (with the shorter threaded section) to the other end of the beam, as shown below.

Diagram Description: An illustration showing the Structures Beam Adapter clamps attached to the ends of a structures beam.

5. Screw the threaded end of the load cell clamp into the hole in the top of the load cell.
6. Using the crank handle, lower the load bar until the threaded end of the load bar clamp extends through the hole in the bar.
7. Use the round nut to secure the load bar clamp in place.
8. Attach the two safety shields to the front and back of the load bar. Adjust their position if necessary.

The mounted structures beam can now be subjected to compression or tension forces.

Clevis Grip (ME-8245)

The Clevis Grip allows tensile testing of samples with hooked ends or through holes. Each grip includes a pin that secures the sample in place. The diameter of each clevis pin is 0.187 in (0.47 cm). Each pin has small, spring-loaded spheres near its end to keep it from slipping out of the clip.

The grip with the longer threaded section mounts in the load bar and is secured with the round nut. The grip with the smaller threaded section and hex nut mounts in the load cell. (See Figure 8.)

Figure 8 Description: An illustration showing a spring secured in place using the Clevis Grip.

As with all other tests, remember to use the safety shields when performing experiments!

Compression Accessory (ME-8247)

The Compression Accessory is designed to compress samples. It consists of two one inch (2.54 cm) diameter platforms providing a sturdy base for compression samples. The platform with the shorter threaded end should be mounted into the load cell, and the platform with the longer threaded end should be mounted into the load bar and secured with the round nut.

The Compression Accessory also includes twenty Compression Samples (ME-8248). These polyethylene cylinders are approximately 0.5 in (1.3 cm) in diameter and 0.75 in (2 cm) in length.

As with all other tests, remember to use the safety shields when performing experiments!

Four-Point Load Anvil (ME-8249)

The Four-Point Load Anvil extends the capabilities of the Bending Accessory. When used with the Bending Accessory and the Materials Testing Machine, the anvil measures, records, and analyzes data on the tested sample's flexural plastic modulus and modulus of rupture.

To use the accessory, simply replace the plunger from the Bending Accessory with the Four-Point Load Anvil and follow the instructions as normal.

Diagram Description: An illustration of the Four-Point Load Anvil, labeled "MATERIALS FOUR-POINT LOAD ANVIL (FOR USE WITH ME-8237)".

Cast Beam Spares Set (ME-6983)

The Cast Beam Spares Set includes 30 "Rebar" members and 10 "molds". A Cast Beam is a model of reinforcement bars ("rebar") used in construction, and a mold is used to produce a model of a beam made of reinforced or prestressed "concrete". After aligning the rebar member with the mold, a mixture of fine sand, plaster, and water is poured into the assembled rebar beam and mold.

Diagram Description: An illustration showing a "Rebar member" and a "Mold" for the Cast Beam Spares Set.

After the mixture hardens and the mold is removed, the beam can be used as a #4 beam in any PASCO Structures Set or tested on the Materials Testing Machine, as shown in Figure 9.

Thin I-Beams (ME-7012)

The Thin I-Beams set consists of 48 thin I-beams, including 24 each of two sizes: #3 beams and #4 beams. These beams are similar to those in PASCO Structures Systems but have no holes in the web area. When used with the Materials Testing Machine, test results are more like those obtained for metal I-beams used in real construction.

Diagram Description: Illustrations of a "#3 beam" and a "#4 beam".

Maintenance

The apparatus requires minimal regular maintenance. The leadscrews must be kept clean and may need re-lubrication. Use a food-grade anti-seize grease containing PTFE (polytetrafluoroethylene, commonly known as Teflon®) to lubricate the leadscrews.

If problems arise with the Materials Testing Machine, contact PASCO scientific for technical support. Attempting to fix the equipment yourself is not recommended.

Software Help

The PASCO Capstone Help provides information on how to use this product with the software. Access it from within the software or online.

• Software: Help > PASCO Capstone Help
• Online: help.pasco.com/capstone

Specifications and Accessories

Visit the product page at pasco.com/product/ME-8244 to view specifications and explore accessories. You can also download experiment files and support documents from the product page.

Experiment Files

Download student-ready activities from the PASCO Experiment Library. Experiments include editable student handouts and teacher notes. Visit pasco.com/resources/lab-experiments/collection/35.

Technical Support

PASCO's knowledgeable and friendly Technical Support staff is ready to answer questions or walk you through any issues.

• Chat: pasco.com
• Phone: 1-800-772-8700 x1004 (USA) / +1 916 462 8384 (outside USA)
• Email: support@pasco.com

Limited Warranty

For a description of the product warranty, see the Warranty and Returns page at www.pasco.com/legal.

Copyright

This document is copyrighted with all rights reserved. Permission is granted to non-profit educational institutions for reproduction of any part of this manual, provided reproductions are used only in their laboratories and classrooms and are not sold for profit. Reproduction under any other circumstances, without the written consent of PASCO scientific, is prohibited.

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Product End-of-Life Disposal

This electronic product is subject to disposal and recycling regulations that vary by country and region. It is your responsibility to recycle your electronic equipment per your local environmental laws and regulations to ensure it will be recycled in a manner that protects human health and the environment. To find where you can drop off waste equipment for recycling, contact your local waste recycle or disposal service, or the place where you purchased the product. The European Union WEEE (Waste Electronic and Electrical Equipment) symbol on the product or its packaging indicates that this product must not be disposed of in a standard waste container.

CE Statement

This device has been tested and found to comply with the essential requirements and other relevant provisions of the applicable EU Directives.

FCC Statement

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.