Industrial Scientific
Todays deals on Industrial Scientific?
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6-PACK INDUSTRIAL SCIENTIFIC M40 4-GAS, SERVICED/CALIBRATED W/CHARGERS & WORKING $2,490.00 |
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INDUSTRIAL SCIENTIFIC 7810-1730 NSPP 78101730 $2,501.25 |
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INDUSTRIAL SCIENTIFIC W52I020 NSFP W52I020 $1,681.30 |
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Industrial Scientific MX6 iBrid Multi Gas Detector Personal Multi Gas Monitor $1,595.00 |
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INDUSTRIAL SCIENTIFIC PL-50 NSPP PL50 $948.75 |
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INDUSTRIAL SCIENTIFIC 7814635-18610 NSFP 781463518610 $921.15 |
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Industrial Scientific ITX Multi-Gas Monitor W DS2 ITX $929.99 |
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INDUSTRIAL SCIENTIFIC MULTI GAS MONITOR DETECTOR MG140 $900.00 |
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Industrial Scientific Calibration Kit 1810-1295_CMX271_Model SP202_SP2O2 $895.00 |
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INDUSTRIAL SCIENTIFIC 7814635 GAS MONITOR *NEW IN A BOX* $800.00 |
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INDUSTRIAL SCIENTIFIC LTX312 USPP LTX312 $747.50 |
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Industrial Scientific M-CAL401 Calibration Station for M40 Gas Monitor $750.00 |
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INDUSTRIAL SCIENTIFIC 7814635-77026367-8 NSFP 7814635770263678 $672.75 |
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INDUSTRIAL SCIENTIFIC MULTI GAS MONITOR KIT MG140 $599.99 |
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LOT OF 7 INDUSTRIAL SCIENTIFIC CMX271 GAS MONITORS WITH 1810-0115 5 BAY CHARGER $589.99 |
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Industrial Scientific M40 M40-Kit-11101 Gas Detector Kit / 3 Gas Detector $549.95 |
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Industrial Scientific TMX410 Multi-Gas / PMP /Charger $499.95 |
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New Industrial Scientific ATX620 Multi Gas Monitor A $499.00 |
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INDUSTRIAL SCIENTIFIC Multi-Gas Detector, 4 Gas, M40-kit-11111 $450.00 |
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ONE (1) INDUSTRIAL SCIENTIFIC M40 4-GAS, SERVICED/CALIBRATED W/CHARGER & WORKING $435.00 |
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ESI Electro Scientific Industries Lead Compensator LC875B $395.00 |
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Industrial Scientific M40 Calibration Station M-CAL401 Gas Calibration Station $399.95 |
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GasBadge Pro (NH3) Monitor | Industrial Scientific 18100060-6 – (NH3 – Ammonia) $380.00 |
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1 Ohm 0.01% Resistor Standard Resistance an-g of ESI Electro Scientific Industry $300.00 |
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Industrial Scientific TMX410 Multi-Gas Monitor & Chargr $349.95 |
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Industrial Scientific CMX271 3-Gas Monitor Detector $295.00 |
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Industrial Scientific ATX612 multi gas Monitor $299.99 |
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INDUSTRIAL SCIENTIFIC 17124975-R USPP 17124975R $278.88 |
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Columbia Scientific Industries CSI1600 Nitrogen Analyze $175.00 |
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Industrial Scientific TMX412 Multi Gas Monitor Chargers $250.00 |
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INDUSTRIAL SCIENTIFIC CALIBRATION KIT 1810-1295 CMX271 valve # 713 0-500 PSI $250.00 |
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INDUSTRIAL SCIENTIFIC 820 CONTROLLER *USED* $250.00 |
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INDUSTRIAL SCIENTIFIC 7702-2606 *USED* $250.00 |
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INDUSTRIAL SCIENTIFIC ITRANS GAS MONITOR 7814635 NEW $239.95 |
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LOT OF INDUSTRIAL SCIENTIFIC SP202 CMX271 MX251 MONITOR $209.00 |
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INDUSTRIAL SCIENTIFIC MG140 GAS MONITOR DETECTOR 4 GAS $195.67 |
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2 INDUSTRIAL SCIENTIFIC TMX412 DETECTOR WITH CHARGER $199.99 |
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Industrial Scientific AirAware Gas Monitoring System for Oxygen, O2, Lot of Two $199.00 |
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Industrial Scientific multi gas monitor $200.00 |
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industrial scientific ATX612 Gas Monitor detector pelican 1500 case $166.17 |
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INDUSTRIAL SCIENTIFIC 17124975-5 USPP 171249755 $189.75 |
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NEW INDUSTRIAL SCIENTIFIC MULTI GAS MONITOR TMX412 + SAMPLING PUMP SP402 UNUSED $179.99 |
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INDUSTRIAL SCIENTIFIC ITRANS GAS MONITOR 7814635 $200.00 |
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Pro Gas Badge monitor detector Industrial Scientific $185.00 |
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Sensor Was Expired Industrial Scientific M40 Multi GAS Monitor Co H2s O2 W/ Pump $199.99 |
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INDUSTRIAL SCIENTIFIC 17124975-1 USPP 171249751 $158.13 |
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INDUSTRIAL SCIENTIFIC 1712-0973 USPP 17120973 $158.13 |
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Electro Scientific Industries Universal Impedance Bridge Model 250DE $149.00 |
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INDUSTRIAL SCIENTIFIC 17031063 FNFP 17031063 $133.40 |
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INDUSTRIAL SCIENTIFIC 17124975-K USPP 17124975K $132.25 |
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Industrial Scientific ITX Charger With Datalink $149.99 |
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Industrial Scientific GasBadge® Plus Disposable 2-Year H2SMonitor $136.50 |
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INDUSTRIAL SCIENTIFIC TMX412 DETECTOR WITH CHARGER $125.00 |
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Industrial Scientific MG140 Oxygen Meter $125.00 |
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Industrial Scientific TMX412 Multi-Gas Monitor $120.00 |
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Industrial Scientific LTX310 Mulit-Gas Methane-Toxic-Oxygen Monitor Detector $125.00 |
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ESI Electro Scientific Industries IMPEDANCE METER 252 $119.95 |
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INDUSTRIAL SCIENTIFIC ITRANS GAS MONITOR ENCLOSURE W/ COMBUSTIBLE SENSOR MODULE $99.99 |
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ESI Electro Scientific Industries 253 Impedance Meter $99.95 |
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INDUSTRIAL SCIENTIFIC DS1000 MAIN CONTRO. $95.00 |
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INDUSTRIAL SCIENTIFIC MULTI-GAS SAMPLING PUMP SP402 $99.00 |
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Industrial Scientific STX70 HCN Single Gas Monitor STX $100.00 |
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Industrial Scientific STX70 Single Gas Monitor For CL2 $100.00 |
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Industrial Scientific STX70 Single Gas Monitor For H2S $100.00 |
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7 Industrial Scientific TMX410 LTX312 Gas Detectors $95.00 |
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INDUSTRIAL SCIENTIFIC 17124975-3 USPP 171249753 $94.87 |
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2 Industrial Scientific CO262 Carbon Monoxide Monitor $100.00 |
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Industrial Scientific TMX 410 Gas detector AS-IS $100.00 |
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Industrial Scientific Gas Monitor T80 Vibrating Alarm O2 $99.99 |
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ELECTRO SCIENTIFIC INDUSTRIES ESI MODEL 251 IMPEDANCE METER, DIGITAL – USED w/WA $97.50 |
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MSA INDUSTRIAL SCIENTIFIC DRAEGER DRAGER MZ51110 150-05-500 AIR REGULATOR / PUMP $80.00 |
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Industrial Scientific SP200 gas sampling pump $79.99 |
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INDUSTRIAL SCIENTIFIC MODEL 715 GAS SAMPLE PUMP 1LPM $79.00 |
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INDUSTRIAL SCIENTIFIC MX251 ALARM $69.99 |
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Industrial Scientific MX241 Oxygen/Gas Monitor Digital Readout Geological Meter $64.95 |
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Vintage esi Electro Scientific Industries Voltage Calibrator SV194 $49.99 |
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INDUSTRIAL SCIENTIFIC MODEL SP200 PERMISSIBLE SAMPLING PUMP for GAS DETECTOR $66.00 |
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INDUSTRIAL SCIENTIFIC TMX412 MULTI-GAS MONITOR $50.00 |
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INDUSTRIAL SCIENTIFIC LTX312 MULTI GAS MONITOR DETECTOR Portable Tester LEL CH4 $49.99 |
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Industrial Scientific 1810-1873 Dual Rate Charger $50.00 |
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INDUSTRIAL SCIENTIFIC DS1000 CALIBRATION STATION CONTROL??? $36.00 |
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INDUSTRIAL SCIENTIFIC 1705-9494 1706-3884 600 SERIES BATTERY PACK for GAS DETECT $60.00 |
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Industrial Scientific DS1000 Docking Station 400 Series $45.00 |
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Industrial Scientific model 1810-4505 DS100 / IDM ITX CHARGER STATION? $40.00 |
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Industrial Scientific MX251 Gas Monitor Detector Y $45.00 |
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Industrial Scientific Personal Alarm, GasBadge for CO $49.95 |
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INDUSTRIAL SCIENTIFIC LTX312 GAS LEL CH4 CO O2 TOXIC MONITOR DETECTOR TESTER $29.00 |
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Industrial Scientific SP202 Permissible Sampling Pump $30.00 |
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INDUSTRIAL SCIENTIFIC MX251 GAS ALARM $24.99 |
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INDUSTRIAL SCIENTIFIC CMX270 GAS ALARM $24.99 |
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INDUSTRIAL SCIENTIFIC EXTERNAL ALARM P/N 1810-1154 $39.99 |
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INDUSTRIAL SCIENTIFIC 1810-0123 USPP 18100123 $28.06 |
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DEKATRAN ELECTRO SCIENTIFIC INDUSTRIES DT58 DECADE TRANSFORMER $13.50 |
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INDUSTRIAL SCIENTIFIC 17050908 NSFP 17050908 $25.00 |
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INDUSTRIAL SCIENTIFIC AK204 USPP AK204 $25.00 |
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INDUSTRIAL SCIENTIFIC MX271 GAS ALARM $19.99 |
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INDUSTRIAL SCIENTIFIC 1810-1873 CHARGER $19.99 |
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INDUSTRIAL SCIENTIFIC EXTERNAL ALARM $25.00 |
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Industrial Scientific NO2 1710-1163 Monitor Sensor NOS $20.00 |
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INDUSTRIAL SCIENTIFIC SP202 PERMISSIBLE SAMPLING PUMP for GAS DETECTOR MONITOR - $30.00 |
Industrial Scientific Questions
Top Five Selection Criteria for Industrial Wireless Technologies
Wireless applications clearly present significant benefits to the industries they serve, such as enabling new monitoring and control capabilities, adding flexibility to existing capabilities and reducing cost of operations and process management. In response, many different wireless solutions and applications are sprouting up across the spectrum to address this growing industrial demand. That said, however, the industrial space presents a unique set of challenges that many traditional wireless solutions are just not specifically designed for, such as high-reliability, low system power consumption and the ability to survive in an RF-unfriendly physical environment, all while being cost-effective. The growing usage of wireless technologies also becomes a challenge as there are many different applications fighting for the same RF-space, thus leading to an overly crowded spectrum and compounding the existing industrial challenges. With these unique challenges in the industrial space as well as the challenges that wireless applications present, how does one compare existing solutions and ensure they are adequate in addressing their environments? Let’s take a look at five of these top variables to address this question.
Reliability
Reliability, in this context, is the ability of a wireless solution to communicate despite the many obstacles that the industrial space presents. Wireless systems contain specific characteristics that can help qualify how well they will respond reliably in a given system. One such characteristic is RF spectrum usage—where, physically, in the RF spectrum do they communicate. Another is the receive sensitivity of the technology—how little do the transceivers need to hear in order to make out the communications. A third is output power—how loud can the technology communicate. A fourth is RF agility—the measure of the ability of a technology to move and avoid interference in the RF spectrum. A fifth is interference immunity—a RF technology’s ability to communicate in a given channel despite interference.
RF spectrum usage is highly dependent on environment due to the physical nature of RF waves. The lower the frequency, the larger the wavelength and thus, the less prone to absorption by typical manufacturing materials such as liquids and reinforced concrete. However, RF spectrum and its usage is a highly, governmentally regulated area of wireless communications to minimize interference with other wireless communications technologies. Only a few areas of the spectrum are reserved either locally or internationally for unlicensed use for these forms of communications; these are known as the Industrial, Scientific and Medical (ISM) band. Within this band, the predominant frequency that’s accepted and used is the 2.4-GHz portion of the ISM band. In this frequency, the small wavelengths are quickly absorbed by the industrial space’s hostile RF environment, thus requiring even more focus on the remaining variables for measuring reliability.
DSSS modulation is essentially a method of performing forward error correction to the transmitting signal to minimize the impact of data loss due to signal interference. Specifically, DSSS encodes a set of data into a larger bit-stream based on a pseudorandom noise code shared by the transmitter and receiver. For example, in figure 1, 8-bits of data are encoded into 32 chips—in this case 4 chips are equivalent to 1 bit. The chips are then modulated onto the RF signal and transmitted. The receiver demodulates the chips off of the received signal and then reverses the DSSS encoding scheme. Even with demodulation errors due to signal noise or interference, the original data can still be recovered.
To view the entire article go to : http://www.cypress.com/?rID=35174
About the Author
Jim Davis, is the global marketing manager for CyFi Low-Power RF, Cypress Semiconductor Corp. For more information go to Cypress Semiconductor
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