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NEO BENZ

Photo-ionization Detector

MP186

User’s Guide

Version 1.01

November 2019

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Summary of Contents for MP186

Page 1: ...NEO BENZ Photo ionization Detector MP186 User s Guide Version 1 01 November 2019...

Page 2: ...ating Mode Overview 11 VOC Mode Main Menu 11 Benzene Tube Mode Main Menu 12 Benzene Tube Measurements 12 STEL Measurement 13 Benzene Tube Replacement 14 Configuration Mode 15 Navigating Config Mode 15...

Page 3: ...he instrument After running for several minutes the residual vapor in the detector chamber will be cleared and the reading should return to zero The battery of the instrument discharges slowly even if...

Page 4: ...een for benzene without a filtering tube and if a response over the alarm limit is detected a tube can be inserted to measure what fraction of the alarm response was actually due to benzene The 45 sec...

Page 5: ...an alarm transducer and four keys The keys are Left Key Right Key Up Key Down Mode Key NEO BENZ user interface Alarm LEDs Left Key Move Cursor Down Mode Key On Off Right Key Move Cursor Buzzer Up Key...

Page 6: ...s Indicates whether the pump is working or blocked Man Down Status Icon appears when Man Down alarm is enabled Lamp Status Lamp icon is shining when on and crossed out when off Bluetooth Enabled Local...

Page 7: ...and communicate with mPower Suite WARNING To reduce the risk of ignition of hazardous atmospheres recharge and replace batteries only in areas known to be non hazardous Use only mPower s rechargeable...

Page 8: ...sts include After self tests the instrument will show sensor information and instrument configuration information in sequence Once the startup procedure is complete and a numerical reading screen with...

Page 9: ...ent period the gas concentration is compared with the programmed alarm limits gas concentration alarm limit settings If the concentration exceeds any of the preset limits the loud buzzer and red flash...

Page 10: ...when datalogging is enabled In addition the following information is stored user ID site ID serial number last calibration date and alarm limits All data are retained even after the unit is turned of...

Page 11: ...meters The Configuration Modes are slightly different depending on whether one is entering from VOC Mode or Tube Mode Some parameters are not accessible on the instrument display and the mPower Suite...

Page 12: ...e press Down b When asked to start sampling press the Right key c Enter the temperature using the Up Down keys to increase or decrease and the Right Left keys to move the cursor Move to and press Up T...

Page 13: ...p F 14 to 21 23 to 30 32 to 39 41 to 48 50 to 66 68 to 86 88 to 122 Run Time 360 s 240 s 170 s 110 s 60 s 45 s 30 s i Monitor the color of the tube through the holder window during the measurement If...

Page 14: ...high VOC background and especially after a STEL measurement it is likely that the capacity of the tube to remove interfering chemicals is used up If the tube has turned from a bright orange to a pale...

Page 15: ...t the menu item Press the Left key to save and exit Entering Numerical Values For example to enter a numerical password Increase or decrease the number from 0 through 9 by pressing the Up key or Mode...

Page 16: ...from any of the Config Menu displays Config Mode Menus This table summarizes the Config Mode menus and sub menus Not all of these menus will be displayed if the option is not set up using mPower Suit...

Page 17: ...17 Fig 4 Flow chart for Configuration Mode...

Page 18: ...tor with fixed flow rate of about 0 5L min 500 cc per min to match or slightly exceed the flow rate of the instrument pump Alternatively the span gas can first be filled into a gas bag e g Tedlar bag...

Page 19: ...enter the temperature insert a tube and press Right The message Please Apply Gas is displayed Start the gas supply and by press the Up key to begin a 30 second span calibration countdown The calibrati...

Page 20: ...llion mg m3 milligrams per cubic meter g m3 micrograms per cubic meter mol mol mol per mol 10 6 per million Measurement Gas Measurement gases are organized in two lists Gas Library is a pre set list t...

Page 21: ...nd TWA Alarm limits in the same manner as described above for the High Alarm limit Note All default alarm limits depend on the measurement gas and are expressed in ppm Alarm Mode There are two selecta...

Page 22: ...er second begins Man Down Alarm Off On Press Right to make a selection followed by Left to save and exit Sensitivity This sensitivity of motion sensor can be set to Low Medium or High Low sensitivity...

Page 23: ...nd press Up to save and exit Monitor Mnt Setup Several settings can be accessed here including date and time pump parameters display parameters and selecting 3 point calibration Date and Time Date The...

Page 24: ...ed has its own Stall Threshold Set Pump Stall Threshold The Pump Stall Threshold is the current draw setting for a blocked pump alarm The default setting is 500 The actual real time pump current draw...

Page 25: ...enabled the instrument re zeroes automatically if the signal drifts below the last Zero Calibration for some time Such drift can occur 1 slowly as the lamp ages 2 a dust or oil film accumulates on the...

Page 26: ...configuration file from the instrument To switch between VOC and Benzene configuration screens change the instrument mode manually and then click Read 5 Edit the configuration parameters as desired a...

Page 27: ...27 mPower Suite Configuration Screen for Benzene Tube Mode...

Page 28: ...weight m w and correction factor for a 9 8 eV PID lamp The molecular weight is only needed when gas units of mg m3 are used if not leave the m w at 0 or 1 By clicking the Save User Gas box on the righ...

Page 29: ...mple time and instantaneous reading A new Single Datalog file is created each time the instrument is turned on or the configuration is changed The middle panel shows the file start time and number of...

Page 30: ...the same time that they appear on the PC list one can select the Rolling Graph option in the Monitor Set up configuration Select Stop when finished and Clear to discard the data when no longer needed...

Page 31: ...or clean the existing lamp as described below 3 Use a cotton swab wetted with methanol to clean the flat window surface of the lamp If greasy dirt is hard to remove using methanol the window can be po...

Page 32: ...should be roughly 250 350 cc min at low pump speed and 350 450 cc min at high pump speed when there is no air leakage and no tube in the holder When approaching the end of its useful operating life t...

Page 33: ...alibration Benzene tube gasket leaks Replace Filter Clean or replace sensor module Clean or replace lamp Calibrate the unit Replace entire tube holder Buzzer inoperative Buzzer disabled Bad buzzer Che...

Page 34: ...34 Contact Information mPower Electronics Inc 3046 Scott Blvd Santa Clara CA 95054 USA Phone 408 320 1266 Toll Free 866 mPower7 866 676 9377 Fax 669 342 7077 info mpowerinc com www mpowerinc com...

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