Sensorcon AV8 Instruction Manual

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Instruction Manual

for AV8 Inspector Models

KNOW YOUR ENVIRONMENT

Technical Specications

CO Range: 0 - 500ppm, display 0 to 1,999ppm

Resolution: 1ppm

CO Accuracy: +/-10%, 0 to 500ppm

Initial Response Time: < 5 seconds

T90 Response Time: < 20 seconds

Display: real-time continuous readings

Size: 3.2” x 2.2” x 0.86”

Weight: 4 ounces

Warranty: 2 years

Battery Life: 2 years (depending on alarm condition)

CO Alarm Set Points: 35ppm low, 200ppm high

Alarms: Vibrating (AV8 Inspector Pro), Audio and visual

Temperature Range: -4 to 122°F (-20 to 50°C)

Humidity Range: 20 - 90% (0 to 99% intermittent)

Introduction

Thank you for choosing the Sensorcon AV8 Inspector! We want to be your go to resource for all of your professional gas detection needs! Please contact us if you have any questions or concerns and we’ll do our best to make sure you’re 100% satisﬁed.

This manual covers the features, speciﬁcations and operating instructions for the AV8 Inspector and AV8 Inspector Pro carbon monoxide (CO) monitors.

Contact Information

Ofﬁce: 1-716-276-2975 [email protected] www.sensorcon.com

Hours of Operation

Monday through Friday: 8am to 4pm Note: East Coast Time Zone

Lanyard Loop & Clip

A clip is on the back of the device. Use this

to attach to your shirt or other location.

Where gas is measured. Keep it clean

and do not puncture the membrane.

LED Indicator Lights

These red lights will ﬂash when the gas

concentration is high enough for an alarm.

There are four lights around the LCD.

Shows CO gas concentration from

0 - 1,999 parts per million

Power / MUTE Button

Press & hold to turn the power ON or OFF.

Press to mute the buzzer for up to 5 Minutes.

Buzzer / Speaker

Makes a beeping sound when an alarm

is active. Do not puncture the membrane.

Sensor Inlet

LCD Display

Warranty

Each AV8 Inspector comes standard with a two year warranty on all of its parts. It is recommended that you calibrate the AV8 Inspector every six months to ensure the best accuracy possible. An EOL (End of Life) symbol will display on the LCD after two years of use. A successful calibration will remove the EOL notiﬁcation for an additional 180 days. Future successful calibrations can continue to be done as long as the electrochemical sensing element remains in good condition.

Maximum Operating Conditions

Temperature: -20°C to +50°C (-4°F to +122°F) Humidity: 20-90% R.H. (0-99% intermittent)

Practical Considerations

Short-term measurements (i.e. <1hr) in any humidity (0-99% R.H.) are ﬁne as long as condensation does not block the sensor inlet. Longer term exposure to extreme humidity or temperature outside the speciﬁed range can result in damage to the sensor. Please note that the LCD display and sensor will not function properly at colder temperatures outside of the speciﬁed operating range.

NOTE: Exposure to higher temperatures and humidity can damage the device.

MAX Button

Press to make the LCD display the maximum concentration measured

while the function is enabled.

Note: New readings will only be displayed

after a new high is encountered.

AV8 Inspector Features Comparison

Models:

Two Year Warranty

Water Resistant

Shockproof

Pre-set Alarms

Visual Alarm

Audio Alarm

CE Certiﬁed

Vibrating Alarm

Adjustable Alarms

24 Hour TWA

AV8 Inspector AV8-CO-01

AV8 Inspector Pro AV8-CO-03

 



Mounting Bracket

AV8 Inspectors come with a mounting bracket that allow it to be mounted to the Instrument panel or other location in the aircraft. Four screws or bolts are required to mount the AV8 bracket. Since mounting locations and scenarios will vary greatly, mounting hardware is

not included.

Battery Indicator

Displays when the battery is low and needs a replacement.

Time Weighted Average

HOLD

Displays a countdown for powering off or entering the calibration mode.

Pro

Displays when the HIGH alarm is exceeded (200ppm CO).

Displays the maximum 8 hour average in the last 24 hours (AV8 Inspector Pro model only).

Zero

Displays as 1st step during calibration to establish 0 ppm status.

Cal

Indicates the device is in calibration mode.

Arrow 1

Displays over MUTE to indicate when alarm is muted.

ALARM

Displays when the lower alarm level has been exceeded (35ppm CO).

Arrow 2

Displays over MAX to indicate the device is in MAX hold mode.

NOTE: Time Weighted Average (TWA) is a feature that is only available on the AV8 Inspector Pro Model.

Displays when the LOW alarm is exceeded (35ppm CO).

Check Box

Indicates a successful zero calibration.

Gas Icon

Displays when applying gas in calibration mode.

PPM

Displays on the screen when measuring gas.

DAYS

Indicates the number of days until calibration is due.

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Operating Instructions

1. Turning on the AV8 Inspector

Hold POWER/MUTE for 1 to 2 seconds to turn on. A 10 second count down timer allows the sensor to warm up before displaying real-time readings.

2. Muting audible alarms

If an alarm occurs and you want to mute the sound, brieﬂy press the POWER/MUTE button.

3. Shutting off the AV8 Inspector

Simply hold POWER/MUTE for 3 seconds to turn the device off. A count down from 3 will be displayed while you are shutting off the AV8 Inspector.

4. Turning on MAX mode

To enable MAX mode, brieﬂy press the MAX button. MAX mode will only show the highest, peak reading

encountered by the AV8 Inspector while the MAX mode is active. The display will only show another value once a new, higher reading is encountered.

1. Entering the advanced features menus

Press the POWER/MUTE and MAX buttons at the same time for 5 seconds to access the advanced features series of menus. Only CAL mode is available for the AV8 Inspector, while the AV8 Inspector Pro will have four advanced features (TWA, CAL mode, Lo Alarm

SEt mode and Hi Alarm SEt mode). To exit, press POWER/MUTE as many times as required to exit.

2. Viewing TWA readings (AV8 Inspector Pro Only)

Pro

Press the POWER/MUTE and MAX buttons at the same time for 5 seconds to access the TWA screen which displays the maximum 8 hour exposure during the last 24 hours. To exit, press POWER/MUTE as many times as needed to exit.

3. Adjusting the Lo Alarm (AV8 Inspector Pro Only)

Pro

Press the POWER/MUTE and MAX buttons at the same time for 5 seconds to access the advanced features series of menus. Press POWER/MUTE twice to get to the Lo Alarm SEt screen.

Push or push and hold the MAX button to adjust the Lo Alarm to a setting from 5 to 100ppm CO. Press POWER/MUTE as many times as needed to exit.

4.) Adjusting the Hi Alarm (AV8 Inspector Pro Only)

Pro

Press the POWER/MUTE and MAX buttons at the same time for 5 seconds to access the advanced features series of menus. Press POWER/MUTE thrice to get to the Hi Alarm SEt screen. Push or push and hold the MAX button to adjust the Hi Alarm to a setting from 40 to 500ppm CO. Press POWER/MUTE as many times as needed to exit.

Calibration Instructions for the AV8 Inspector Advanced Operating Instructions

Calibration is done at the factory or by the customer using a gas regulator, some Tygon tubing and 50ppm CO calibration gas. Go to https://sensorcon.com or call us at 1-716-276-2975 for more info.

Follow these steps below to calibrate the AV8 Inspector:

1. Entering CAL mode

Press the POWER/MUTE and MAX buttons at the same time for 5 seconds to access the CAL screen.

2. Performing the ZERO cal

In a clean air environment, press the MAX button to begin ZERO calibration. A 30 second countdown timer will be displayed while zero calibration is being done. Once complete, the sensor will beep, quickly ﬂash CAL dn and then quickly ﬂash the BASELINE value just before continuously displaying the word GAS. If you want to continue on with the GAS calibration, skip to step

3. If you only want to perform ZERO cal and not the gas calibration, press POWER/MUTE to exit. no CAL will ﬂash on the screen before returning to normal operation.

Note: ZERO cal in a non-clean environment will cause errors in the readings!

3. Performing GAS cal

When ZERO cal is complete, use 1/4” OD, 1/8” ID Tygon tubing to attach the cal gas cylinder and regulator to the sensor inlet. Turn on the gas ﬂow (rate of 0.3 to

0.5L/min). Press the MAX button to start the GAS cal process. A timer will countdown from 60 seconds. Once the countdown has ﬁnished, the sensor will beep, quickly ﬂash CAL dn and then display the SENSITIVITY for 2 seconds before returning to normal operation. If there is an issue with the sensor calibration, the sensor will display err before returning to normal operation. If the sensor displayed err during calibration, please contact Sensorcon for further support.

Note: Do not service this device in a hazardous environment.

Calibration Instructions for the AV8 Inspector Pro:

1. Entering CAL mode

Press the POWER/MUTE and MAX buttons at the same time for 5 seconds to access the advanced features series of menus. Press POWER/MUTE once to get to the CAL screen.

2. Performing the ZERO cal

In a clean air environment, press the MAX button to begin ZERO calibration. A 30 second countdown timer will be displayed while zero calibration is being done. Once complete, the sensor will beep, quickly ﬂash CAL dn and then will show the BASELINE value. Pressing the MAX button will advance to the next screen displaying the word GAS. If you want to continue on with the GAS calibration, skip to step 3. If you only want to perform ZERO cal and not the gas calibration, press POWER/MUTE to exit. no CAL will ﬂash on the screen

3. Performing GAS cal

When ZERO cal is complete, use 1/4” OD, 1/8” ID Tygon tubing to attach the cal gas cylinder and regulator to the sensor inlet. Turn on the gas ﬂow (rate of 0.3 to

Note: Do not service this device in a hazardous environment.

before returning to the next advanced features series of menus. To return to normal operation, press POWER/MUTE two more times to exit.

Note: ZERO cal in a non-clean environment will cause errors in the readings!

CO Exposure Chart

Pro

CO Level Effect

1,600 PPM Dizziness in 20 minutes. Death in 1 hour.

1,000 PPM Loss of consciousness after 1 hour.

800 PPM Dizziness and headache after 45 minutes.

400 PPM Life threatening in and around 3 hours.

200 PPM Dizziness, nausea, fatigue *HIGH ALARM POINT STARTS*

100 PPM Sight headache after 1-2 hours.

50 PPM Maximum possible exposure in workspace.

35 PPM NIOSH 10 hour TWA *LOW ALARM SET POINT STARTS*

25 PPM Max TWA Exposure for an 8 hour work-day (ACGIH).

10 PPM Possible heath effects with long-term exposure.

0 PPM Normal fresh air with no CO.

EPA & NIOSH Concentration Guidelines:

Carbon Monoxide

0-5ppm Average inside homes 35ppm NIOSH 8hr exposure limit 200ppm NIOSH 15min. exposure limit

Feel free to contact us should you

have further questions.

Ofﬁce: 1-716-276-2975

[email protected]

www.sensorcon.com