
WATER QUALITY
INSTRUMENTS
19
QED MP20 Flow Cell
Successful, consistent low-ow ground water sampling is
based on knowing when purge water indicator parameters
stabilize. This ensures that sampling begins only when
the samples are truly representative of water in the
surrounding aquifer.
Until now, deciding when stabilization had been achieved
was complex; it required you to monitor multiple
ground water quality parameters simultaneously and
make repeated calculations to determine whether
the uctuations in each parameter had fallen within
acceptable limits. The MP20 Flow Cell changed this process
forever. Microprocessor-based PurgeScan technology
performs the monitoring and calculations automatically,
clearly signaling when stabilization has occurred with
audio and visual alerts.
This makes low-ow sampling easier, more accurate, and
more ecient, too, as it frees your time to perform other
sampling tasks while purging is underway. You can do it
the right way, collecting the most accurate samples, and
saving time and money.
Beyond its exclusive PurgeScan feature, The MP20
Flow Cell has been designed to continuously monitor
groundwater quality parameters in-line, such as pH,
temperature, redox potential, conductivity and turbidity
(optional sensor) during purge.
The MicroPurge MP20 Flow Cell purge water quality
monitor leads the eld in performance, convenience,
completeness and warranty. On top of all that, QED’s
exclusive PurgeScan technology automatically signals
when stabilization has been achieved for selected water
quality parameters and stores key data points.
Flow Cell
Specications
Meter Specications:
Display 9 cm
Weight 1 kg
Memory 100 data frames (200 opt.)
Rating Waterproof NEMA 6 [IP67]
Power 3 x C batteries
Battery Life 12 hours
Temperature -5 - 50°C
Cable 1.83 m
Flow Cell Specications:
Volume 175 mL
Material rigid urethane
Fitting Type soft-tube “clamp-free”
Fitting Size(s)
Inlet 1/4 in. I.D. x 3/8 in. O.D.
Outlet 3/8 in. I.D. x 1/2 in. O.D.
Venting Modes horizontal and vertical
Sonde Connection bayonet-style twist mount
Sonde Specications
Size 8 x 23 cm
Weight 0.6 kg
Typical Sensor Performance Specications:
Temperature 0.01°C
Range -5 to 50°C
Accuracy ± 0.2°C
Resolution 0.01°C
DO
Range 0 to 20 mg/l
0 to 100 mS/cm
Accuracy ± 0.2 mg/l
±1% of reading ± 1 count
Resolution 0.01 mg/l
4 Digits
pH
Range 2 to 12 units
Accuracy ± 0.2 units
Resolution 0.01 units
ORP
Range -999 to 999 mV
Accuracy ± 20 mV
Resolution 1 mV
Turbidity (MP20DT Only)
Range 0 to 1,000 NTU
Accuracy ± 5% of reading
Resolution ± 1 NTU 1 NTU
Salinity (calculated)
Range 0 to 70 PSS
Accuracy ± 1% of reading
Resolution ± 1count 0.01 PSS
Ordering Information
QEDMP20 MicroPurge Basics Flow Cell for pH, dissolved oxygen
(DO), conductivity, ORP (redox), and temperature.
Includes calibration and maintenance supplies and
carry case.
QEDMP20D As above with Download
QEDMP20DT As above with turbidity
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