SENSORCON INSPECTOR - Carbon Monoxide And Hydrogen Sulfide Inspector Manual

Introduction

Thank you for choosing the Sensorcon 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 Basic, Industrial and Industrial Pro versions of Carbon Monoxide (CO) and Hydrogen Sulfide (H2S) meters.

Warranty

Each Inspector comes standard with a two year warranty on all of its parts. It is recommended that you calibrate the 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.

Inspector Features Comparison

Certifications

CE CERTIFIED
(All Models)

ETL CLASSIFIED (Industrial & Industrial Pro)

THIS DEVICE CONFORMS TO UL STD 913;
CERTIFIED TO CSA STD C22.2 NO 157
Intertek/ETL control number 4004813

SUBSTITUTION OF COMPONENTS MAY IMPAIR INTRINSIC SAFETY

Technical Specifications

DESCRIPTION OF THE DEVICE

• Lanyard Loop & Clip
  A clip is on back of the device. Use this to attach to your shirt or other location.
• Sensor Inlet
  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.
• LCD Display
  Shows gas concentration from 0 - 1,999 parts per million for CO and 0 - 400 parts per million for H2S
• 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.

• 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.

Description of the indicators on the display

• Battery Indicator
  Displays when the battery is low and needs a replacement.
• Time Weighted Average (PRO)
  Displays the maximum 8 hour average in the last 24 hours. (Industrial Pro model only)
• Zero
  Displays as 1st step during calibration to establish 0 ppm status.
• Cal
  Indicates the device is in calibration mode.
• HOLD
  Displays a countdown for powering off or entering the calibration mode.
• HI
  Displays when the HIGH alarm is exceeded (200ppm for CO and 15ppm for H2S).
• Arrow 1
  Displays over MUTE to indicate when alarm is muted.
• ALARM
  Displays when the lower alarm level has been exceeded (35ppm for CO and 10ppm for H2S).
• Arrow 2
  Displays over MAX to indicate the device is in MAX hold mode.
• LO
  Displays when the LOW alarm is exceeded (35ppm for CO and 10ppm for H2S).
• 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.

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

Operating Instructions

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

Advanced Operating Instructions

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 Basic and Industrial Inspector models, while the Industrial 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 (Industrial Pro Only)
   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 (Industrial Pro Only)
   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 for CO or 1 to 20ppm for H2S. Press POWER/MUTE as many times as needed to exit.

4. 
   Adjusting the Hi Alarm (Industrial Pro Only)
   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 for CO or 11 to 100ppm for H2S. Press POWER/MUTE as many times as needed to exit.

Calibration Instructions for Basic & Industrial Inspector

Calibration is done at the factory or by the customer using a gas regulator, some Tygon tubing and calibration gas (50ppm for CO and 15ppm for H2S). Go to https://sensorcon.com or call us at 1-716-276-3047 for more info.

Follow these steps below to calibrate the Basic or Industrial 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 for CO and 120 seconds for H2S. 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 Industrial Pro Inspector:

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 30second 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 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!
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 for CO and 120 seconds for H2S. 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.

CO Exposure Chart

EPA & NIOSH Concentration Guidelines

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

Hydrogen Sulfide
0.005ppm Average inside homes
10ppm NIOSH 8hr exposure limit
15ppm NIOSH 15min. exposure limit

Contact Information

Feel free to contact us should you have further questions.
425 Essjay Road, Suite 100
Buffalo, NY 14221
Office: (716) 566-2728
sales@sensorcon.com
www.sensorcon.com

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

Documents / Resources

References

• Sensorcon – Sensorcon - Sensing Solutions by Molex
• Sensorcon – Sensorcon - Sensing Solutions by Molex

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