Dielectric Technologies MGD-2002, Manual

Page 1: ...A Radiodetection Company Model MGD 2002 IB 417 Rev A Part No 84671 Dielectric Technologies RR 2 Box 756 Bridgton Commerce Center Bridgton ME 04009 877 247 3797 207 647 9495...

Page 2: ...ext 116 for a material return authorization number MRA The device should be boxed securely and contain information as to the person to contact with telephone number billing information and return ship...

Page 3: ...d Liquid Crystal Display LCD Page 12 e LCD Status Icons Page 13 Maintenance a Cleaning and Inspection Page 14 b Filter Replacement Page 14 c Clearing the Silica Gel Filter Page 15 d Battery Replaceme...

Page 4: ...ener 4 Plug the Universal power supply into a convenient AC wall outlet First then plug the other end into the device Second NOTE Charge battery for 2 hours before operating the Multi gas detector for...

Page 5: ...1 000 000PPM 100 Increment 25 PPM Selectivity Hydrogen H2 Helium He Resolution Low range 25 PPM High Range 0 2 Response Time 2 Seconds approx Audio Out Pulse Width Modulation LCD 128 Bit X 64 Bit Dot...

Page 6: ...ture However water will not only adversely affect this unit s operation but may cause severe damage Water found inside the unit will also void your warranty Use precautions when operating the detector...

Page 7: ...ve this level whether intentionally mixed or accidentally trapped in a confined space is highly explosive and unstable Since the MGD 2002 is capable of detecting both Hydrogen H2 and Helium He gas wit...

Page 8: ...s Detector is a 16 Bit microprocessor controlled precision instrument that operates on the principle of changing thermal conductivity to locate a specific tracer gas as well as quantify its local conc...

Page 9: ...to explain TC is it s ability to absorb heat or wisk away heat from a heat source An easy way to think about this is to remember how hot you feel when you sweat Air helps to cool your body temperature...

Page 10: ...gas it will draw in 100 CDA The micro processor is then told that the reading it s getting is to be refered to as Zero Using a known controlled volume of CDA 2 tracer gas Scientific grade is injected...

Page 11: ...hree independant filters one removes water vapor one removes chloroflourocarbons and the last removes large particulates MOISTURE FILTER Dielectric s revolutionary Patent Pending replacement filter ca...

Page 12: ...rough most filters with out detection or elimination Even in today s high tech environment the only way to eliminate methane is to burn it off Unfortunately in a hand held device burning off stray gas...

Page 13: ...he ON OFF button supplies power to the instrument Once the unit is turned on it will initialize then conduct a 30 second power on self test POST The instrument will turn off automatically when left un...

Page 14: ...environment MODE this button controls what is being dis played on the LCD By default the unit is in auto matic mode and will constantly show what the sens ing elements have detected in both concentra...

Page 15: ...on self test which will last for approximately 60 seconds Figure 3 on the left is displayed upon successful completion of the power on self test or when the unit has just been reset This display is s...

Page 16: ...crossed out If the unit is recharging the icon will change to a lightening bolt and back to a plug when complete MODE There are two possible modes of operation for this device either automatic A or ma...

Page 17: ...nd debris Dry thoroughly when done Filter Check the filters in handle before every use If the cartridge is pink or whitish in color replace the cartridge following the steps provided below The filter...

Page 18: ...with Compressed Dry Air or Dry Nitrogen Use the Needle probe connected to the front end of the probe handle and the Back Flushing Air Chuck assembly connected to the hose Figure 5 below The needle pr...

Page 19: ...nd The internal software will detect the presence of the charger and will turn off the detection capability while the unit is in charge To charge this device using the standard 12VDC auto adapter simp...

Page 20: ...se this device or the accuracy is strictly required the calibration should be a minimum of once per year If however the device is used infrequently or the accu racy is not as critical factory recalibr...

Page 21: ...er PN 84972 3 Probe Assembly PN 83325 4 7 2V Nickle Metal Hydride Battery PN 82492 5 Carrying Strap PN 84923 6 12VDC auto plug in adapter PN 84677 7 100 24VAC Universal AC charger PN 84673 W North Ame...

Page 22: ...ry PN 82492 3 Boot Housing PN 84210 4 12VDC auto plug in adapter PN 84677 5 100 24VAC Universal AC charger PN 84673 6 Eurpoean power cord PN 84674 7 Extension Rods 2 PN 83325 8 Needle Probe PN 84165 C...

Page 23: ...the repair without charge or the furnishing F O B Bridgton Maine of a similar part to replace any part which within one 1 year with the exception as noted above from date of shipment is proven to hav...