UltraRAE Specific Compound Monitor
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- 3-16 times
faster analysis time UltraRAE is a quick, spot-check monitor, typically used by occupational health, safety and environmental personnel. The combination filter tube and PID remove the disadvantages associated with colorimetric tubes and gas chromatographs. Simply insert a RAE-Sep™ tube and get eigher a total vapor reading or a specific compund reading, such as benzene in petroleum vapor or methylene chloride in organic solvent vapors. Applications include tank entry pre-screening during petrochemical platnt maintenance, hazardous material response, marien spill response, and refinery down-stream monitoring. |
Principle of Operation
A photo-ionization detector (PID) is used for broad band screening down to very low ppm levels of volatile organic compounds (VOCs), for example, petroleum or solvent vapors. The UltraRAE not only uses traditional lamps but also a lower energy lamp (9.8 eV) for benzene monitoring (benzene ionization potential IP = 9.25 eV). A 9.8 eV lamp discriminates against other hydrocarbons with higher ionization potentials commonly found in petroleum vapors yet easily detects sub ppm levels of benzene. To screen for very low levels of potentially toxic VOCs, an empty glass tube is used. To read specific compounds, for example benzene, a patented RAE-Sep™ tube is added. This tube, containing absorbent materials, filters most of the other VOCs, such as toluene, that will interfere with the benzene reading. A RAE-Sep™ tube is simply broken at each end and inserted into the top of the monitor. By pressing the "Y" key, a strong, internal pump draws the air sample through the tube and the final result is shown on the display (after 30 to 75 seconds depending on the compound). A fresh tube is used for each measurement. These tubes also absorb humidity to allow for a very accurate reading on the UltraRAE. A bar code reader identifies the type of tube inserted. The data-logging feature then records the date and time of monitoring, the tube type, and the concentration. To obtain the accuracy at such low levels and the confidence in your results, we recommend calibration, prior to use. A simple, clean-air zero and span gas calibration takes less than 3 minutes.
Specifications
| VOC | Benzene | Halocarbons | |
| Range | 0 - 2000 ppm | 0 - 200 ppm | 0 - 200 ppm |
| Resolution | 0.1
ppm 0 - 99.9 ppm 1 ppm 100 - 1000 ppm |
0.1 ppm | 0.2 ppm |
| Response Time | 30 sec. | 75 sec. | Compound Dependent |
| Calibration Gas | 100 ppm isobutylene | 5 ppm benzene | Compound Dependent |
| UV Lamp | 9.8, 10.6 or 11.7 eV | 9.8 eV | 11.7 eV |
| Intrinsic Safety | UL, cUL Class 1, Division 1, Group A,B,C,D, EEx ia 11C T2 |
| Size | 7.75"(19.7 cm) L x 2.75"(7 cm) W x 1.5"(3.8 cm) H |
| Weight | 16 oz (455 gm) with battery pack |
| Detector | Photo-ionization sensor |
| Battery | Rechargeable, snap-in, field replaceable, NiCd battery pack |
| Battery charging | 10 hours charge through built-in charger |
| Operating Hours | 10 hours |
| Display | Large LCD, manual and alarm activated backlight |
| Accuracy | ¡¾10% of reading or ¡¾ 0.1 ppm when calibrated to 5 ppm benzene |
| RAE-SEP™ tube | Field
replaceable, bar coded, sealed at both ends for storage One year shelf life |
| Keypads | 1 operation key and 2 program keys |
| Alarm Setting | Adjustable alarm limit levels (Factory default 0.5 and 1 ppm) |
| Audible Alarm | 90 dB buzzer |
| Visual Alarm | Flashing red LED |
| External Alarm | Optional plug in pen size vibration alarm |
| Alarm Mode | Latching |
| Datalogging | 3000 points; includes sample number, average, peak, time/date, specific vapor. Header information includes monitor serial number, user ID and site number. |
| Communication | Down load data to PC and up load instrument setup from PC through RS-232 link to serial port on PC |
| Calibration | Two points field calibration of zero and 5 ppm benzene |
| Sampling Pump | Internal. Flow rate : 400 cc per minute, low flow alarm |
| Temperature | 0¨¬ to 40¨¬C (32¨¬ to 113¨¬F) |
| Humidity | 0 % to 95 % relative humidity (non-condensing) |
Additional
Technical Notes
TN
133 - Methylene Chloride-Specific Measurements using the UltraRAE (.pdf)
TN
127 - Benzene-Specific Measurements in Petroleum Hydrocarbons using
the UltraRAE (.pdf)
Users of UltraRAE
for benzene
- Military
- Pipelines
- Crude oil production
- Transportation - tankers, railways, aircraft, barges
- Refineries & refinery contractors
- Petroleum user - gasoline, diesel, jet fuel
- Steel - light hydrocarbon by-product from coking
- Petrochemical plants
- Benzene solvent users
- Environmental companies
- Hazadous Material (Hazmat) Response Teams
UltraRAE Ordering Information
Basic
Unit
- UltraRAE unit PID detector
- Rechargeable battery pack
- 2 x (5 pack) RAE-SEP™ benzene tubes
- ProRAE-7200 Software and computer interface cable
- AC/DC charging adapter
- Operation and maintenance manual
PGM-7200
Kit
As above plus:
- Calibration gas, 34 liter cylinder
- Regulator with Teflon tubing
- Tedlar bag
- Organic vapor zeroing kit
- Hard case