PASCO PS-3217 Manual de usuario

Instruction Sheet

012-16215A

800-772-8700 www.pasco.com

Wireless Oxygen Gas Sensor

PS-3217

Included Equipment

Part Number

Wireless Oxygen Gas Sensor

Oxygen Gas Sensing Element

PS-3606

250 mL Sample Bottle

SE-6938

Micro USB Cable

PS-3584

Required Equipment

SPARKvue or PASCO Capstone software

Introduction

The Wireless Oxygen Gas Sensor measures oxygen gas

concentration in percent (%) and parts per million (ppm)

oxygen. The sensor also measures temperature, relative

humidity, and absolute humidity. It can be used to study

cellular respiration, photosynthesis, air quality, oxygen

cycling, and the rate of oxygen production in chemical

reactions.

Using the sensor for the first time

Perform the steps below when using the sensor for the

first time. Detailed steps of each procedure are found in

separate sections of the instruction sheet.

1. Install the sensing element.

2. Charge the battery.

3. Connect the sensor to software.

4. Calibrate the sensor.

PS-3217 Wireless Oxygen Gas Sensor

012-16215A

To install the sensing element

1. Unscrew the stopper from the sensor by turning

the stopper counterclockwise.

2. Remove the sensing element from the storage

bottle, then connect it to the sensor (Figure 1).

CAUTION: Make sure that the temperature and

humidity sensor does not get wedged under the

sensing element.

3. Screw the stopper back on the sensor.

NOTE: The sensing element only needs to be installed

when using the sensor for the first time. The sensing

element will not need to be removed until replacement is

necessary (at least two years).

Figure 1. Installation of the sensing element.

To charge the battery

1. Connect the micro USB cable to the micro USB

port on the sensor then connect the other end of

the cable to a USB charger.

2. Allow the battery to charge for at least three

hours. The battery status LED will turn green

when fully charged.

NOTE: The sensor can remain connected to a power

source when fully charged without damaging the

battery. The sensor automatically stops charging the

battery when fully charged.

To connect the sensor to software

The sensor automatically connects with the software

when connected to a device via USB. Use the procedures

below to connect the sensor to the software via Bluetooth.

SPARKvue

1. Press and hold the power button until the

Bluetooth status LED starts flashing red.

2. Open SPARKvue and select Sensor Data.

3. Under Connected Devices, select the sensor that

matches your device ID.

PASCO Capstone

1. Press and hold the power button until the

Bluetooth status LED starts flashing red.

2. Open Capstone and click Hardware Setup.

3. Select the sensor that matches your device ID.

To calibrate the sensor

The sensor should be calibrated before using the sensor

for the first time. It is not necessary to calibrate the sensor

each time the sensor is used. Calibration is recommended

if the O2Concertation reading for an atmospheric sample

is greater than ±1% from 20.9%.

SPARKvue

1. Collect an atmospheric air sample (see the

Collecting Samples procedure).

2. Connect the sensor to SPARKvue and set up

data collection.

3. Select the Hardware Setup icon.

4. Select the Calibration icon.

5. Select Calibrate.

6. Select OK to confirm calibration.

Wireless Oxygen Gas Sensor

012-16215A

PS-3217

PASCO Capstone

1. Collect an atmospheric air sample (see the

Collecting Samples procedure).

2. Connect the sensor to Capstone.

3. In the Tools palette, click Calibration.

4. Select Concentration then click Next.

5. Select One Standard (1 point slope) then click Next.

6. Click Set Current Value to Standard Value.

7. Review the calibration then click Finish.

Collecting Samples

To collect an atmospheric air sample

NOTE: It is recommended to perform this procedure

outside of a building to collect a fresh sample.

1. Hold the sample bottle upright and open to the air.

2. Insert the stopper of the sensor into the bottle to

seal the bottle.

To collect expired air or other gas samples

1. Place the sensor inside a plastic bag.

2. Press any atmospheric air out of the bag.

3. Use a tube to fill the bag with the gas sample.

4. Secure the bag closed round the tube to contain

the gas sample and exclude atmospheric air.

WARNING: Do not allow the sensor to contact liquids.

CAUTION: Do not clean the sampling bottle in a

dishwasher or autoclave.

LED Status

The status LEDs operate as follows:

Bluetooth LED Status

Red blink Ready to be connected to software

Green blink Connected to software

Yellow blink Remotely logging data

Battery LED Status

Red blink Battery needs to be replaced soon

Green solid Battery is fully charged

Yellow solid Battery is charging

Storage

Under 20.9% ambient O2, the lifetime of the sensing

element is estimated to be 2 years or longer. The lifetime

of the sensing element will be affected by several factors,

including storage temperature, pressure, and availability

of oxygen. It is recommended to cover the stopper with

the included sample bottle or sensing element storage

bottle when not in use. This will limit its exposure to

oxygen and maximize the lifetime of the sensing element.

How the sensor works

The oxygen sensing element is a galvanic fuel cell with a

gas permeable membrane at one end. The fuel cell

contains an electrolyte, anode, and cathode. When

oxygen enters the fuel cell through the membrane, a

chemical reaction between the metallic cathode and

anode and the electrolyte occurs. This chemical reaction

produces a voltage. The voltage produced is proportional

to the concentration of oxygen present.

Wireless Oxygen Gas Sensor

012-16215A

PS-3217

Suggested Experiments

•Photosynthesis

•Cellular Respiration

•Oxygen cycling

•Enzyme Activity

•Fermentation

•Monitoring Air Quality

Specifications

Range 0 to 100 % O2concentration

0 to 1,000,000 ppm

Resolution 0.01 % oxygen

Repeatability ±0.5% oxygen

Accuracy ±1% O2(constant

temperature and pressure)

±5% O2(when outside

operating temperature range)

Operating temperature 0 to 40 °C

Relative humidity range 0 to 100%, non-condensing

Sensing element life 2+ years

Sensing element warranty 1 year

Battery warranty 1 year

Technical Support

For assistance with PASCO products, contact PASCO at:

Address: PASCO scientific

10101 Foothills Blvd.

Roseville, CA 95747-7100

Phone:

916-462-8384

Web:

www.pasco.com

Email:

support@pasco.com

Product End of Life Disposal Instructions

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

that it will be recycled in a manner that protects human

health and the environment. To find out where you can

drop off your waste equipment for recycling, please

contact your local waste recycle/disposal service, or the

place where you purchased the product.

The European Union WEEE (Waste

Electronic and Electrical Equipment) symbol

(to the right) and on the product or its

packaging indicates that this product must not

be disposed of in a standard waste container.

Warranty, Copyright, and Trademarks

Limited Warranty For a description of the product

warranty, see the PASCO catalog.

Oxygen Gas Sensor Instruction Sheet is copyrighted with

educational institutions for reproduction of any part of this

manual, providing the 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.

Trademarks PASCO and PASCO scientific are

trademarks or registered trademarks of PASCO scientific,

in the United States and/or in other countries. All other

brands, products, or service names are or may be

trademarks or service marks of, and are used to identify,

products or services of, their respective owners. For more

information visit www.pasco.com/legal.

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