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ADVANTAGES OF USING A LASERLIGHT SOURCE
• Measuring path up to 20 meterspossible, due to a narrow and intenselaser light beam.
• Excellent beam collimation (0,04 °) ‐no need to use lenses or mirrors in thetransmitter making the system reliableand simple
• Standard wavelength guarantees longtermaccuracy and stability
• The analyser can be transferred toanother location without factorycalibration.
• The alignment of the beam is easybecause the beam is narrow
PRINCIPLE OF OPERATION
The measuring system is based on the single passprinciple. The light beam crosses the measuring sectiononce only and the receiver unit measures and evaluatesthe light beam’s weakening caused by the dust content.The optical value will be shown as opacity % on analoguedisplay and digital display. Manual‐calibration check can bedone by using optical filter.
FEATURES OF THE MONITOR UNIT
• 4 operator selectable measuring ranges• Analogue and digital display• Settable alarm relay• 0 ... 1 V DC and 4 … 20 mA current outputs
TYPICAL APPLICATION
• Powerplants• Cement factories• Incinerators• Tunnels
• Minimum optics needed ‐ less maintenance• Optimal for stacks up to 20 meters• No moving parts‐minimal maintenance• Large operation range ( 0 ... 90 %)• Good stability and reliability
LASER LIGHT SOURCE‐ULTIMATE WAWELENGHT STABILITY, EXCELLENT COLLIMATION AND HIGH SENSITIVITYLASER LIGHT SOURCE‐ULTIMATE WAWELENGHT STABILITY, EXCELLENT COLLIMATION AND HIGH SENSITIVITY
ETG DUST MONITOR MODEL 3188
세일국제무역 Tel. 02-837-6974 · Fax. 02-859-2059 · e-mail : [email protected] · homepage : www.rbr.co.kr 2/2
RECEIVER UNIT
Light typeWavelenghtAmbient temperaturePurge flow requirementDimensions
Semicond laser655 mm, visible light‐20 ... +60° CMin. 10l/min25 x 80 x 145 mm, weight 1,0 kg
TRANSMITTER
CommunicationDisplay
ControlsAlarms and mode indicatorsOutputs/Inputs
EnvironmentalDimensions
Analogue, Windows‐base monitoring software as option availableAnalog display for optical density, 0 ... 100 % linear scale Digital display, 3‐digitLCD for mg/m3Range switch, calibration and alarm settingsRelay 115 or 230 VAC, 1A max, with led indicatorCurrent 4 ... 20 mA for real‐time D‐value/mg/m3 Voltage 0 ... 1 V DC for realtimetime D‐value/mg/m3Ambient temperature 0 ... 70° C, Power 115/230 VAC, 14 VASize: 180 x 215 x 130 mm, weight 1,5 kg
MONITOR UNIT
Range switch
Position
1234Option:(* Depends on the size and density of the particles, values given with the size of ave. 1 μm and 1 kg/dm³)
D‐value
0...0.030...0.10...0.30...1.00...3.0
Opacity %
0...6.70...200...500...900...99
Massrange *)mg/m³Dist. 1 mt
0...240...800...2400...8000...2400
Massrange *)mg/m³Dist. 2,5 mt
0...9,60...320...960...3200...960
Massrange *)mg/m³Dist. 5 mt
0...4,80...160...480...1600...480
MEASUREMENT FUNCTIONS AND RANGES
LASER LIGHT SOURCE‐ULTIMATE WAWELENGHT STABILITY, EXCELLENT COLLIMATION AND HIGH SENSITIVITY
ETG DUST MONITOR MODEL 3188
Detection
PowerAmbient temperaturePurge flow requirementDimensions
Optically matchedsemicond. detector, Ø50 mmFrom monitor unit‐20 +80°CMin. 30l/min170 x 110 x 125 mm,weight 1,25 kg
