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BMT MESSTECHNIK GMBH

BMT MESSTECHNIK GMBH, Stahnsdorf, Germany. Tel. +49 - 3329 - 696 77 - 0, fax +49 - 3329 - 696 77 - 29

OSTI Inc., Monterey, California, USA Tel. +1 - 831 - 649 11 41, fax +1 - 831 - 649 11 51

SAMPLE GAS DEHUMIDIFIER DH6

Manual

Rev. 10/2020

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Summary of Contents for DH6

Page 1: ...HNIK GMBH BMT MESSTECHNIK GMBH Stahnsdorf Germany Tel 49 3329 696 77 0 fax 49 3329 696 77 29 OSTI Inc Monterey California USA Tel 1 831 649 11 41 fax 1 831 649 11 51 SAMPLE GAS DEHUMIDIFIER DH6 Manual Rev 10 2020 ...

Page 2: ...2020 2 MDH6EN 10 2020 Sample gas dryer DH6 Contents 1 General Description 3 2 Cautions Warnings 4 3 Installation 4 4 Electrical connection 5 5 Display 5 6 Error Messages 6 7 Low Concentration Version DH6 LC 7 8 Maintenance 8 9 Specifications 9 ...

Page 3: ... 279x140x64 mm HxDxW standing upright on one leg upright posi tion is inevitable because the condensate formed inside the cooler has to flow back into the off gas system On top of the reaction vessel or in a large diameter off gas tube the leg is plugged into a big SS fitting with PTFE seal The fitting can be screwed into a 3 8 NPT threaded bore hole or it can be welded into a bore hole 17 mm ID A...

Page 4: ...as connections make sure that the sample line does not contain ozone gas and is not under pressure Caution Before opening the lid of the electronics the user should ground himself by touching grounded points in order to prevent damage of the electronics by electrostatic discharge Précautions Avertissement L ozone est un gaz à forte toxicité Les concentrations d ozone passant par le refroidisseur s...

Page 5: ... of the 4 pole electric connector is as follows black 1 GND 24VDC cable shield white 2 24 VDC screw terminal brown 3 contact DRYER ERROR side green 4 contact DRYER ERROR The electronics are protected by a fuse rated 2A slow blow type TR 5 Wickmann It also has a reverse polarity protection which will not burn the fuse in case of the wrong polarity If connect ed to a BMT 964 OG off gas analyser no e...

Page 6: ...temperature is exceeded by more than 1 K The Error relay is not activated The LED is deactivated if the temperature reaches the set point tem perature hysteresis of 1 K The max power LED is activated upon maximum cooling power This does not necessarily mean any failure After power on both LEDs are activated for several minutes until the conditions for normal operation are met In normal operation a...

Page 7: ...The error relay is also in it s error position while the power to the DH6 is switched off 7 Low Concentration Version DH6 LC For measurement of very low concentration ozone e g in humid vent gas behind an ozone de struct the model DH6 LC is available It has an inner PTFE lining and a particle filter installed at its outlet assuring that the full length of tubing leading the sample gas to the ozone...

Page 8: ...ter of the tube at the bottom is 9 mm Have a look at the inside of the fitting and the SOBV if ordered as well Avoid the spilling of fluids outside of the gas path Before re assembling the dryer thoroughly inspect the O ring A damaged O ring may not be used again Re assembly of the DH6 must be done in reverse order followed by a leak test Further maintenance is not necessary In case of any problem...

Page 9: ... cooling power 4 5 W ΔT Tambient Tset 20 K power on to operational max 10 minutes ΔT Tambient Tset 20 K and recommended flow rate materials in contact SS PTFE PVDF inlet gas port tube with OD 12 mm 3 8 NPT thread with PTFE seals outlet gas port for FEP tubing 3 x 5 mm 1 8 x 3 16 or for FEP tubing 4x6 mm 1 4 x 5 32 or Swagelok 6 mm or display 4 digits LED power 24 VDC 40 W via separate power supply...

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