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GasTech Millenium Hydrocarbon, Инструкция по эксплуатации

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 5   

 

Infrared Absorption Spectrum for Methane 

 

 
 
 
 
The dual channel receiver is a single wafer, double filtered, dual receiver with an internal optical barrier.  
The elements are perfectly matched resulting in overall stability and superior performance throughout the 
entire temperature range.  
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
Using a dual channel receiver there is no need to use any special lenses or beam splitters to achieve the   
different measurement bands. 
 
The MILLENIUM utilizes a unique patent pending feature, the AutoAC

 circuit.  The AutoAC

 circuit is 

an automatic analog control circuit, which allows the MILLENIUM to be calibrated for any combustible 
hydrocarbon, provided that a calibration quality level of the gas is available.  This eliminates setting 
dipswitches or changing out sensors for different types of hydrocarbons, simply calibrate the unit with a 
calibration gas of the specific gas to be detected. 
 
The optics can be easily disassembled for cleaning.  This does not require powering the unit down and does 
not compromise the units’ explosion proof rating.  The device will self compensate for dirty optics until a 
point in which the optical surfaces are completely obscured.   
 
There are no consumable components contained in this product. 
 
 
 
 
  

Transmittanc

e

Wavelength

100%

0%

Absorption

Band

Reference

Band

Dual Channel

 

Receiver

 

Infrared Light

 

Source

 

Waveguide

 

Window

 

Window

 

Waveguide 

Collar 

Wiring 

Connections 

Hydrophobic Filter

Содержание Millenium Hydrocarbon

Страница 1: ...nstruction and Operation Manual GasTech Australia Pty Ltd 106 Westpoint Center 396 Scarborough Beach Rd Osborne Park 61 8 9242 1869 Fax 61 8 9242 1959 Email info gastech com au Web site www gastech com au Version 092501 A U S T R A L I A P T Y LT D ...

Страница 2: ...nty does not apply to items which by their nature are subject to deterioration or consumption in normal service Such items may include Fuses and Batteries Warranty is voided by abuse including rough handling mechanical damage alteration or repair This warranty covers the full extent of GTA liability and GTA is not responsible for removal replacement costs local repair costs transportation costs or...

Страница 3: ...Table of Contents I SPECIFICATIONS II GENERAL DESCRIPTION III OPERATION Installation and Startup IV CALIBRATION V MAINTENANCE VI PARTS LIST VII DRAWING SECTION ...

Страница 4: ... per minute flow rate Output analog 4 20 mA Source type max 1000 Ohm load at 24 VDC supply voltage Response Time T50 5 seconds T90 10 seconds Construction Sensor housing is nickel plated aluminum and stainless steel Optional stainless steel model available Class 1 Division 1 Groups B C and D Ingress rating IP54 Accuracy 3 LFL 0 to 50 LFL Lower Flammable Limit 5 LFL 51 to 100 LFL Operating Temperat...

Страница 5: ...i layered filtering system protects optics from dirt and water ingress Straight optical path eliminates the need for mirrors or reflective surfaces such as mirrors or beam splitters Performs well in the presence of high concentrations or constant background levels of hydrocarbons and in oxygen depleted atmospheres Highly resistant to poisoning and etching Standard 4 to 20 mA output current source ...

Страница 6: ...for any combustible hydrocarbon provided that a calibration quality level of the gas is available This eliminates setting dipswitches or changing out sensors for different types of hydrocarbons simply calibrate the unit with a calibration gas of the specific gas to be detected The optics can be easily disassembled for cleaning This does not require powering the unit down and does not compromise th...

Страница 7: ...acteristics of the immediate area must also be considered Movement of air may cause gas to accumulate more heavily in one area than in another The detector should be placed in the areas where the most concentrated accumulation of gas is anticipated For outdoor applications with strong wind conditions it may require the sensors to be mounted closer together and on the down wind side to the anticipa...

Страница 8: ...detector continuously checks for system faults or initiation of calibration and automatically changes to the appropriate mode The 4 to 20 mA output of the MILLENIUM is a non isolated current source Current Output and Corresponding Status Once the fault is cleared the MILLENIUM will atomatically resume normal operation Current Output Status 0 20 mA Normal measuring mode 0 0 mA Unit Fault 0 2 mA Ref...

Страница 9: ...al and continue operation as normal The MILLENIUM can be spanned in the field if the customer wishes to change the target hydrocarbon gas Please contact factory for additional equipment information and pricing for PC IR Link Package V MAINTENANCE The MILLENIUM does not normally require cleaning of the optics However if the unit is operating in a very dirty or dusty environment the optical path mig...

Страница 10: ...0280 Replacement Sensor MILLENIUM 190 1001 2001 Sensor Separation Kit 142 0877 Insulation Tube 142 0497 MILLENIUM Replacement Hydrophobic Filter 142 0297 MILLENIUM Wave Guide Tube 142 0570 MILLENIUM Wave Guide Tube Collar 142 0636 PC IR Link Kit ...

Страница 11: ...10 VII Drawing Section Figure Title Figure 1 Wiring Diagram MILLENIUM Figure 2 GTA Sensor Separation Kit ...

Страница 12: ...RAM MILLENIUM SENSOR FIGURE 1 WHITE Calibration Data RED 24 VDC BLACK 24VDC DC Common BLUE 4 TO 20 mA Out OutOUTPUT 6 5 inches 165mm 2 6 inches 66mm 3 4 NPT THREAD Earth Ground Stud 10 32 A U S T R A L I A P T Y LT D ...

Страница 13: ...12 WIRE ENTRY FOR SENSOR 3 4 NPT WIRE ENTRY FOR RETURN TO SEC 2000 3 4 NPT NOTE HOUSING RATED FOR CLASS 1 DIV 1 GROUPS B C AND D SEC SENSOR SEPARATION KIT FIGURE 2 A U S T R A L I A P T Y LT D ...

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