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QED
MicroPurge® basicsTM
MP20 Flow
Cell |
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Simple, economical purge monitoring with automatic stabilization alert. |
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Water Quality Measuring with Integral Flow Cell and Automated Purge ScanTM Technology
-- Purge Scan tells you when the water quality parameters have stabilised.
Monitor up to 5 parameters (pH, ORP, DO, Conductivity/Salinity, Temperature) while purging or sampling a well with the MP20 Flow cell system. New Purge Scan technology allows you to sample with confidence thanks to visible & audible stabilisation alerts.
The MP20 meter is designed expressly to simplify calibration and operation in the field, by eliminating non-essential features. It displays all readings automatically and is lightweight and water-proof. |
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The sonde is a compact, low-profile design with rugged, easy-to-service probes. The flow cell is designed to collect and vent gas bubbles effectively, and to distribute purge flow evenly for quick measurement response and more accurate readings. The enclosure is of the Sealed Type, meaning that the sample does not come into contact with air. The whole package is protected by a 3-year warranty, backed by service and support from QED, the leader in low-flow sampling.
Until now, deciding when stabilization had been achieved was complex, requiring you to monitor multiple parameters and make repeated calculations. The new MP20 Flow Cell simplifies this part of the process. Microprocessor-based PurgeScanTM technology performs the monitoring and calculation, clearly signaling when stabilization has occurred. This allows sampling to begin only when the pump discharges samples representative of the formation water.
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Quick, precise measurements make low-flow sampling easy. The MP20 assures the user of collecting the most accurate samples, and save time and money on a groundwater sampling program. It also stores key data automatically, along with elapsed time of purging. |
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System
Specifications:
| Model No. |
MP20 |
| Dimensions |
18.5"x15"x6.5"
(47x38x17 cm) |
| Weight |
14 lbs (6.4 kg) |
| Storage |
100 Data Points |
| Stabilization |
Purge ScanTM Technology
(patent pending) |
| Case Material |
Structural Resin |
| Keypad |
5 Keys |
Meter Specifications:
| Display |
3.5" (9 cm) |
| Weight |
2.1 lbs (1 kg) |
| Memory |
100 Data Frames |
| Rating |
Waterproof NEMA 6 [IP67] |
| Power |
3 "C" batteries |
| Battery Life |
12 Hours |
| Temperature |
23 - 122°F (-5 - 50°C) |
| Cable |
6 foot (1.83 m) |
Flow Cell Specifications:
| Volume |
175 ml |
| Material |
Rigid urethane |
| Fitting Type |
Soft-tube "clamp-free" |
| Fitting Size(s) |
Inlet: 1/4" I.D. x 3/8"
O.D. Outlet: 3/8" I.D. x 1/2"
O.D.
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| Venting Modes |
Horizontal and Vertical |
| Sonde Connection |
Bayonet-style Twist Mount |
Sonde Specifications:
| Size |
3"x9" (8x23 cm) |
| Weight |
1.3 lbs (0.6 kg) |
Typical Sensor Performance Specifications:
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Range |
Accuracy |
Resolution |
| Temperature |
-5 - 50°C (23 - 122°F) |
± 0.20°C (0.36°F) |
0.01°C (0.018°F) |
| DO |
0 to 20 mg/l |
± 0.2 mg/l |
0.01 mg/l |
| Specific Cond. |
0-100 mS/cm |
±1% of reading ± 1
count |
4 Digits |
| pH |
0 to 14 units |
± 0.2 units |
0.01 units |
| ORP |
-999 to 999 mV |
± 20 mV |
1 mV |
| Salinity* |
0 to 70 PSS |
± 1 count |
0.01 PSS |
| *Calculated |
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PurgeScanTM Specifications:
Parameter
Stabilization range criteria
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pH - +/- .2 units
DO - +/- 0.2 mg/l
Conductivity- +/- 0.020 m S/cm
ORP- +/- 20 millivolts
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Stabilization basis
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3 consecutive readings
of selected parameters (one or more of above 4) within above
limits, at time interval selected, from 1 to 9 minutes. For
example, if 2 minutes is selected, then stabilization would be
signaled when 3 consecutive 2-minute intervals showed in-range
readings at the end of each interval, requiring 6 minutes. |
| Elapsed time since
Purge Scan initiated shows at the bottom of the screen. |
Full data sets are
stored at time 0, every 5 minutes, and the 3 consecutive
readings which satisfy the stabilization criteria.
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