Environmental Air Quality

Monitoring Sensor

GENERAL:

The E-10 Air Quality Sensor/Controller is the most important front runner required in ensuring indoor air quaility to its maximum. The E-10 Sensor generates a cumulative response to most detectable Volatile Organic Compound (VOC) pollutants present. This intellegent technique lends itself to many monitoring applications where pollutant mixing occurs or unknown pollutants may exist. The E-10 Sensor connects to the DLC Load Controller for motor operations and/or can be ordered with 0-5VDC outputs for connection to Building Management Systems (BMS) 4-20mA available on request. The E-10 Sensor operates on 12VDC, which is supplied from the DLC Load Controller or with our optional 12VDC power supply.

DESCRIPTION:

The E-10 Sensor with associated load controllers provides automatic "on demand" operation of air cleaning, ozone purifying and ventilating systems - proportional to concentrations of over 100 Total Volatile Organic Compounds (TVOCs). When the total pollutant concentration of an environment exceeds a preset level of the E-10 sensor, a signal is transmitted to the controller, thus enabling automatic control. As simply as a thermostat regulates heating/cooling, according to temperature, the E-10 sensor/controller automatically regulates indoor air quality according to pollution.

DETECTION:  

Gases detected include Diesel Engine & Combustible Engine Exhausts, Formaldehyde, Xylene, Toluene, Glutaraldehyde, Carbon Monoxide, Benzene, Acetones, Ammonia, Ketones, Tobacco Smoke, many other complex gases. 

(Contact factory for a list of other gases)

APPLICATIONS:

• Automatic, variable speed control of air cleaners that clean the air of gases and fumes outlined above

• Automatically modulate ozone generator output to Low-Medium-High and OFF control without allowing ozone in the occupied space

• Automatically control dampers, VAVs, Energy Recovery Ventilators

• Remote sensing/control of VOCs with DDC Systems (Direct Digital Control) 

• Room or building air monitoring to verify cleanliness

• HVAC Intake supply and exhaust air monitoring/control

• Indicator for adsorption filter media breakthrough for maintenance interval requirements of Carbon based air cleaners

• Variable speed of AC motors

FEATURES:

• Long-life multi-gas sensing element

• Micro-processor based

• No re-calibration required

• Solid State design

• Multiple configurations and outputs

• In-duct-mounted sensor

• Easy to install, operate and maintain

RESULTS:

• Ensure compliance

• Eliminate operating errors

• Reduce liability and health risk

• Optimize operating efficiency

• Enhance equipment value

• Energy efficient/lower operating costs

• Prolong equipment and filter life

• Maintain a healthy environment with improved Indoor Air Quality (IAQ)

GENERAL:

The E-10 datalog option provides a 0-5 VDC or 4-20mA analog signal proportional to Total Volatile Organic Compounds (TVOCs). The sensor output responds to instantaneous changes in air quality; an increase in voltage indicates an increase in TVOC levels. By connecting a datalogging device and tracking output over a period of time, the baseline for a particular environment can be found. If pollutants are introduced, the time and relative severity of the occurrence will be indicated as a rise in signal above the baseline. These anomalies can then be traced to potential pollution sources that were present at the time. Without the datalogging option, the sensors provide a TTL output, designed to be connected to the DLC Load Controller or other TTL Compatible controllers.

OPERATIONS:

The E-10 sensor powers up in "auto" mode. The green Ready LED will flash for three minutes indicating sensor warm-up. Thirty minutes should be allowed for full stabilization. It is recommended that the sensor be left on even when not in use to assure short stabilizing times. After the three minute warm-up, the sensor switches to the full Auto mode and the Green Ready LED stays "on". When a pollutant is detected, the Green LED will go out and the Red Signal LED comes "on". Once the pollutant has been disipated, the Red LED will go "out" and the Green LED will go "on" awaiting the next round of pollutant.

Click on the diagram below to download a file of this drawing

NOTE:

The E-10 is calibrated in clean air at 72 degrees F and 25% RH. The baseline voltage is set to 800 mVDC. Maximum output is 5.0 VDC. The baseline will slightly vary with changes in temperature and humidity. Both have the effect of increasing the sensor voltage approximately 5mV per degree F or % change in humidity.

E-10 DUCT MOUNT ENCLOSURE SENSOR SPECIFICATIONS:

When the E-10 sensor detects a Volatile Organic Compound (VOC) pollutant, a signal is transmitted to the DLC Load Controller. The Load Controller will send a TTL signal, based on VOC level to control an Ozone Generator or other air purification device that has a variable speed output or motor with a high, medium, low and stand by mode.

DLC LOAD CONTROL SPECIFICATIONS:

Size: 4.2 (107.7) X 4.0 (102.0) X 2.5 (63.5)

Case: .06 (1.72) Aluminum Enclosure

Output Type: TRIAC Controller AC Voltages

Main Output: 3 Adjustable Setpoints - 50% To 100%

Auxilary Outputs: On/Off Switching of Line Level

Weight: 5 Lbs.

Input: 120/240VAC 50/60 Hz 1 Watt

Signal Input: 3 Channel TTL Active Low

Output Current: 15 Amps

PRICING

E-10 In-Duct Air Quality Sensor $479.00

E-10 BMS Air Quality Sensor with 0-5VDC $489.00

DLC Load Controller (Please specify 110 or 240) $489.00