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Rev: 01  

P/N: 95343 

Page | 22  

Selecting Stabilization Parameters 

Select parameters for purging stabilization based on your site work plan or groundwater sampling & analysis 
plan (GWSAP or SAP) and considering any regulatory guidance or requirements. Each parameter can be selected 
individually. If the parameter is not displayed on the screen make sure it is enabled for measurement (See 
section 3.5.3), as only the parameters that are selected for measurement can be used for stabilization. If the 
parameter is shown on this screen but is not selected for stabilization, it will be displayed on the main screen 
but will not be taken into account for stabilization.  

Choosing Stabilization Criteria Range 

The PurgeScan stabilization function indicates when the selected purging parameters have stabilized based on a 
comparison of the current measured values with the two previous logged values, with all three values falling 
within the range selected for each parameter (the stabilization criteria). The selection buttons next to each 
parameter allow the user to either stabilize based on either a unit of measure or a percentage of the measured. 
This can be different for each parameter but each parameter can only have one selection of either units or 
percentage. The units or percentage that the user sets is generally based on the site specific work plan, 
groundwater sampling & analysis plan (GWSAP or SAP) and considering any regulatory guidance or 
requirements. When all of the selected parameters fall within the selected stabilization criteria, the system will 
show “Stabilization Achieved” in green text in the status bar at the bottom of the main screen. The logged file 
will also be annotated with the word “Stable” in the comments section. 

 

Trending Function

 

At the bottom of the screen there is a toggle switch allow the user to either turn ON or OFF the trending 
function. This optional function can be used to identify readings that are trending upward or downward to avoid 
“false” or early indication of stabilization. If the values are trending and changing by 50% or more of the 
stabilization criteria chosen, this function will prevent the software from indicating “Stabilization Achieved” even 
though the reading values fall within the stabilization criteria selected.  When trending stops and the values fall 
within the desired stabilization range, the software will indicate stabilization on the screen and the PurgeScan 
log will be annotated. 

PurgeScan Logging Interval 

The interval between logged readings can be user selected. This option is located at the top of the screen 
notated 

Interval

, with a drop down menu where the user can choose different preset times from 1-10 minutes in 

1 minute increments.  

3.6 Backup Logs 

The Backup Logs are saved onto the sonde as a backup to the PurgeScan logs. This is in the case of the tablet or 
PC being compromised and the user not being able to retrieve the logged data.  

Summary of Contents for MicroPurge MP25

Page 1: ...Operation Manual MicroPurge Flow Cell MP25 MP2T QED Environmental Systems Inc 2355 Bishop Circle West Dexter MI 48103 A Graco Company...

Page 2: ...y Table of Contents 1 Introduction 3 1 1 Components 3 2 MP25 and MP25T Sonde 4 2 1 MP25 and MP25T Sensor Parameter List 4 2 2 MP25 Sensors 4 2 3 MP25T Sensors 5 2 4 MP25 and MP25T Flow Cell Setup 5 2...

Page 3: ...on Criteria 21 3 6 Backup Logs 22 3 7 Other Operations 23 3 7 1Tablet Scroll Interval 23 3 7 2 Bluetooth Scan Filter 23 3 7 3 Save GPS Location 23 3 7 4 Software Version 23 3 7 5 Wipe Turbidity Sensor...

Page 4: ...6 5 Troubleshooting 26 6 Warranty 27 1 Introduction 1 1 Components 1 MP25 or MP25T Multi parameter Sonde with Storage Calibration Cup 2 Bluetooth Battery Module 3 3 meter waterproof cable 4 Bluetooth...

Page 5: ...ons to sampling pump tubing 2 MP25 and MP25T Sonde 2 1 MP25 and MP25T Sensor Parameter List 1 Temperature C 2 Temperature F 3 pH units 4 pH mV 5 Specific Conductivity S cm 6 Specific Conductivity mS c...

Page 6: ...Remove storage cup from sonde 2 Attach flow cell adaptor to end of sonde Only needed for MP25 MP25T has integral bayonet pins on the sonde bottom cap 3 Insert sonde adaptor into flow cell and push int...

Page 7: ...NOTE The flow cell is designed to be used in either a horizontal or vertical position Any gas bubbles in the flow stream are vented out of the cell and away from the sensors weather vertical or horizo...

Page 8: ...o the user The LEDs can be seen through the gap in the label in the same window as the serial number when the sonde is connected to the application Green LED Blinks every one second to indicate adequa...

Page 9: ...necting your MP25 or MP25T for the first time The MP25 and MP25T are Bluetooth capable devices so the user can wirelessly display and log their data Below is how the user will connect their MP25 or MP...

Page 10: ...rval the time between live readings can be set It s easiest to use the same interval for the Tablet Scroll Interval as you use for the PurgeScan Logging Interval to avoid confusion but this isn t requ...

Page 11: ...left corner is the name of the log file when pressed a list of other logs will appear and can be viewed These files will be downloaded onto the selected File Save Location see Section 3 7 6 on how to...

Page 12: ...d 0 001 Molar 147 Micro S brackish saltwater borderline brackish water typical freshwater very pure fresh glacial water Reference Electrode calibration not required N A replace pH electrolyte solution...

Page 13: ...for zero oxygen as well as saturation To calibrate the zero point follow the same steps as above for air saturated water DO using one of the three following methods Method 1 use a commercially prepare...

Page 14: ...point pH calibration The two point calibration is most common using a pH 7 buffer and a pH 4 buffer if expected values are below 7 or pH 10 buffer if expected values are above 7 If you are measuring i...

Page 15: ...e voltage drop across the platinum membrane of an ORP electrode The ORP sensor on the MP25 system is the 1 mm silver colored dot you can see when looking down at the pH sensor The pH ORP reference ele...

Page 16: ...cy of very low turbidity readings Make sure you use enough calibration standard solution to cover the sensor s optical volume generally filling to near the top of the calibration cup when installed on...

Page 17: ...t of the entire turbidity sensor 6 NEVER rotate the wiper arm manually This will strip the gears inside the wiper mechanism which would require replacement of the entire turbidity sensor Setting up th...

Page 18: ...g box This typically takes about one minute but could take slightly longer 4 Hit OK 5 After this point the application will bring up another dialog box to calibrate to a second standard if applicable...

Page 19: ...lized etc You can elect to accept any SRF value and continue with calibration Calibrating barometric pressure for Dissolved Oxygen DO There are two ways to calibrate the Barometric Pressure BP on the...

Page 20: ...tions completed on the sonde during its lifetime In this file are the time and date of the calibration the parameter calibrated the reading before the calibration was accepted the reading after the ca...

Page 21: ...moves the check mark and disables that parameter Only select parameters for sensors that are installed If a parameter is selected and the MP25 or MP25T does not have that sensor installed the data wil...

Page 22: ...Rev 01 P N 95343 Page 21 3 5 4 Configure Stabilization Criteria...

Page 23: ...ater sampling analysis plan GWSAP or SAP and considering any regulatory guidance or requirements When all of the selected parameters fall within the selected stabilization criteria the system will sho...

Page 24: ...er the Find Another MP25 Menu This will make connecting to the MP25 or MP25T more convenient 3 7 3 Save GPS Location This feature will allow the user to save the physical GPS location of the tablet be...

Page 25: ...flow cell does not appear to be increasing in turbidity bubbles forming from dissolved gases in the groundwater may be interfering with the sensor When this button is pressed the wiper located on the...

Page 26: ...ature data from Table 4500 O found in the 19th Edition of Standard Methods for the Examination of Water and Wastewater 4 1 2 Salinity Correction of DO mg L The function used to calculate oxygen solubi...

Page 27: ...nd Jenkins 4 3 CE Testing and Certification The MP25 System has been tested and complies with CE requirements in effect at time of manufacture A copy of the MP25 s current Certificate of Compliance is...

Page 28: ...llers and Water Level and Drawdown Meters are warranted for one 1 year Hose reel and caps are warranted for ninety 90 days Tubing used in a Portable System is covered by a ninety 90 day material and w...

Page 29: ...installing or maintaining the Product in a manner other than in accordance with QED s written recommendations uses or applications other than the intended use or application as indicated in the manua...

Page 30: ...ronmental Systems Inc 2355 Bishop Circle West Dexter MI 48130 Toll Free North America 800 624 2026 Company Main 734 995 2547 Fax 734 995 1170 Web www qedenv com Email info qedenv com QED Environmental...

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