119 Specifications

Particulate Sensor

Specifications

Particulate Sensor

Method

Photometer

APPENDIX

A

Particulates

Display Range

0.000- 200.0 mg /m 3

(Non-condensing)

0 to 20,000 µg/m 3

0.1 – 10 µm

Display Resolution Accuracy/Repeatability

0.001

1

±15% (Calibrated to

Arizona road dust;

ISO 12103-1, A2 Fine

Test Dust)

N/A *See note below

Particulate Sensor - General

Size

Impactor- mechanical

0.1 µm to 10 µm* (* Note : The photometer can detect particles up to 100 µm; however, accuracy is reduced for sizes greater than 10 µm It may not be as accurate.)

Top-mounted, rotary impactor particulate filter

Impactor settings

Measures

PM2.5, PM4, PM10 or PM at 1.67 Liter/minute flow rate

Real-time aerosol/dust concentration using a 90º optical light scattering photometer to report total mass concentration (mg/m 3 or µg/m 3 ) of particulate matter

Gravimetric sampling

Dust correction factors

 Flow: ± 5%, after calibration

 Back-pressure @ gravimetric cassette

 ≥ 5 kPa

 ≥ 20 inches of water @ 1.67 L/min

Up to 8 User-defined particulate correction factors. To correct for variation from

“Arizona Road Dust”.

Life expectancy/Warranty 5,000 hours (for the laser photo-meter)/1 year warranty

Volatile Organic Compounds (VOCs) Gas Detector (PID Sensor)

Method & Detector

Low sensitivity PID

High sensitivity PID

 10.6 electron-Volt Photo-

Ionization Detector

Display Range

0.00 to 2,000 ppm or mg/m 3 ; (Non- condensing)

0 – 50,000 ppb* or

μg/m 3 ; (Non-condensing)

Display Resolution

0.01 ppm

1 ppb

Accuracy/Repeatability

±5% / 2%; (relative

Isobutylene) at cal value

±5% / 2%; (relative

Isobutylene) at cal value

Life expectancy/Warranty 2,000 hours in clean air environment (replaceable bulb and grid)/ 1 year warranty

EVM Series User Manual