Related Manuals for QED MicroPurge MP25
Summary of Contents for QED 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...
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Page 2: Table Of Contents
Safety Warnings Wear appropriate Personal Protective Equipment (PPE) including safety glasses when working with the QED MP25 or MP25T. Intended for use with groundwater wells and common sampling pump systems with flow control capability. MicroPurge Application MP25 & MP25T Manual MP25 &... - Page 3 3.2 Connecting your MP25 or MP25T for the first time ..................8 3.3 Home Screen ..............................9 3.3.1 Snapshot ..............................9 3.3.2 Find Another MP25 ..........................10 3.3.3 View PurgeScan Logs ..........................10 3.3.4 Settings ..............................10 3.4 Calibration and Calibration Logs ........................10 3.4.1 Calibration ..............................
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Page 4: Introduction
4.4 Turbidity ................................ 26 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 Battery Charger Rev: 01 P/N: 95343 Page | 3... -
Page 5: Mp25 And Mp25T Sonde
5. Calibration Stand 6. Flow Cup 7. Maintenance Kit 8. Sensor Guard 9. PTFE Thread Tape 1/4” 10. MP25 Flow Cell Adaptor 11. Assorted Fittings for flow cell connections to sampling pump tubing 2. MP25 and MP25T Sonde 2.1 MP25 and MP25T Sensor/Parameter List 1. -
Page 6: Mp25T Sensors
2.3 MP25T Sensors Turbidity Conductivity Temperature Dissolved Oxygen pH/ORP Reference pH /ORP Electrode 2.4 MP25 and MP25T Flow Cell Setup 2.4.1 Steps to connect the Flow Cell to the MP25 or MP25T 1. 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. - Page 7 4. Determine necessary flow cell inlet connection fittings based on pump discharge tubing type and size. 5. Connect the included flow cell flexible tubing from pump to flow cell and then from flow cell discharge to purge water collection bucket. NOTE: The flow cell is designed to be used in either a horizontal or vertical position.
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Page 8: Led Indicators
2.5 LED Indicators Both the MP25 and MP25T have three LED indicators mounted to the internal circuit board, to provide troubleshooting information to 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. -
Page 9: Cleaning And Storage
Red LED: Blinks five times at power-up when logging is enabled. 2.6 Cleaning and Storage Clean your instrument periodically with warm soapy water. Clean sensor stems with a soft brush. Laboratory-grade liquid detergent is preferred, but liquid dishwashing soap is fine. Do not use abrasives. Do not use solvents such acetone. Do not clean with gasoline, kerosene, or industrial cleaners. -
Page 10: Home Screen
3.3 Home Screen After successfully connecting your MP25 or MP25T to your Android Device, you will see a default list of parameters and data scrolling across the screen. The device is NOT logging data at this point, see section 3.4 to set up the PurgeScan Logging feature. -
Page 11: Find Another Mp25
3.3.2 Find another MP25 If this button is pressed after an MP25 or MP25T is connected it will disconnect the current device. This button can also be pressed if a user is trying to connect to an MP25 or MP25T and the device doesn’t show up on the list of Bluetooth devices. - Page 12 Selecting Calibration Standards For best results, choose a calibration standard whose value is close to what you expect to see in the water you’re measuring. For example, calibrate with a 1413 μS/cm Specific Conductance standard if you expect to see Specific Conductance readings between 500 and 1500 μS/cm in the field.
- Page 13 Conductivity/Specific Conductance (SpC) The MicroPurge MP25 system uses the four-electrode method to determine water electrical conductivity. Two pairs of graphite electrodes are situated in a stable geometry. A constant voltage is...
- Page 14 applied to one of each electrode pair, and the amount of current required to maintain that voltage is measured. As the conductivity of the water increases, the current increases. The MP25 reports conductivity as Specific Conductance (conductivity standardized to 25°C). The conductivity sensor is also used to calculate Total Dissolved Solids (TDS) and Salinity from the conductivity value.
- Page 15 1. Remove the reference cap by unscrewing it from the reference sleeve using a coin edge and discard the old reference electrolyte. 2. Fill the sleeve completely with fresh pH reference electrolyte (KCl saturated with silver chloride). Tap the body of the MP25 sonde a few times to dislodge any bubbles. 3.
- Page 16 Turbidity Turbidity is measured as the fraction of an infrared light beam that is scattered at 90° to that beam. More particles in the water mean more of that light is scattered, so the turbidity reading is higher. Any material that accumulates on the optical surfaces of the turbidity sensor such as solids and gas bubbles is indistinguishable from particles suspended in the water, so most turbidity sensors have wipers to clean the optical...
- Page 17 The cap can also be inverted and used as a temporary lid for calibration of parameters such as DO % saturation in saturated air or water. The QED flow cell kit includes a unique calibration stand that slips over the edge of the carrying case and holds the inverted sonde as shown in the photo below.
- Page 18 Entering calibration data 1. Enter Calibration Standard into the text field and hit done on the keypad. 2. Pour Calibration Standard into storage/calibration cup until sensors are fully submerged. 3. Wait for the value to appear on lower right corner of dialog box. This typically takes about one minute but could take slightly longer.
- Page 19 Sensor Response Factor (SRF) The Sensor Response Factor is created based off the calibration that was executed. This will tell the user how near or far each individual sensor is out of specification, and may need possible replacement if number is far enough out of specification.
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Page 20: Calibration Logs
3.4.2 Calibration Logs Every MP25 sonde has a dedicated data file called CAL.LOG. The CAL.LOG will show all calibrations 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 calibration was accepted, the SRF, and a few other details. -
Page 21: Purgescan® Logging And Setup
3.5 PurgeScan® Logging and Setup 3.5.1 PurgeScan Logging Setup and Interval PurgeScan Logging File Name To set up the PurgeScan log, the user will go to the PurgeScan Menu, under the Settings menu. After menu has been accessed a dialog box will appear prompting to name the new logging file. It is common to use the Well ID and Date, but the file can be named anything seen fit. -
Page 22: Configure Stabilization Criteria
3.5.4 Configure Stabilization Criteria Rev: 01 P/N: 95343 Page | 21... -
Page 23: Backup Logs
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. -
Page 24: Other Operations
3.7 Other Operations 3.7.1Tablet Scroll Interval This setting controls the scrolling interval of the data the user sees across the screen of the device. This does NOT control the PurgeScan Logging interval, which can be found in Section 3.4. 3.7.2 Bluetooth Scan Filter This setting the user can filter out unnecessary Bluetooth devices under the Find Another MP25 Menu. -
Page 25: Wipe Turbidity Sensor
3.7.5 Wipe Turbidity Sensor When taking turbidity measurements or using the PurgeScan stabilization function on the MP25T system, if you notice that turbidity values are rising significantly but the water in the flow cell does not appear to be increasing in turbidity, bubbles forming from dissolved gases in the groundwater may be interfering with the sensor. -
Page 26: Selecting A Storage Location For Purgescan Log Files
3.7.6 Selecting a storage location for PurgeScan Log Files When saving the PurgeScan Logs, the user has the choice to save the files to either the internal memory of the tablet, or onto an SD if installed in the device. Under the Tablet/Phone menu the button will show either Use Phone Storage or Use SD card if available, the selection that is currently shown when the Tablet/Phone menu is open, is where the logs will be saved. -
Page 27: Specific Conductance, Salinity, And Tds
MP25's current Certificate of Compliance is available on request. 4.4 Turbidity QED's MP25T is compliant with GLI method 2 EPA approved method, and ISO 7027:1999(E). GLI Method 2 is recognized by EPAas an approved method in Section 141.74 of the Federal register Vol. 59 No. 232 (December 5, 1994). - Page 28 3. Separately Sold Parts, Spare Parts Kits and Repairs - Separately sold parts and spare parts kits are warranted for ninety (90) days. Repairs performed by QED are warranted for ninety (90) days from date of repair or for the remaining term of the original warranty, whichever is longer.
- Page 29 Purchaser's return of the claimed defective Product to QED, after receiving authorization to do so from QED. In no event shall claimed defective Products be returned to QED without its authorization. If the Product is determined not to be defective within the terms of this warranty, then all costs for repair, parts and labor that are authorized by Purchaser shall be borne by Purchaser.
- Page 30 4. Send the malfunctioning component, after authorization by QED, to: QED Environmental 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 Systems Inc.
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