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PURGE STABILIZATION FLOW CELLS
MP20 MicroPurge Flow Cell
Measures purge water indicator parameters in-line; compact, more portable size (50% smaller than previous models).
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Purge Stabilization Flow Cell Specifications |
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| Model No. |
MP20 (standard)
MP20D (w/ real time clock / data download)
MP20DT (w/ real time clock / data download / turbidity)
(U.S. Patent Number 6,415,659)
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| Dimensions |
18.5 in. x 15 in. x 6.5 in. (47 x 38 x 17 cm) |
| Weight |
14 lbs. (6.4 kg) |
| Storage |
100 data points (200 opt.) |
| Stabilization |
Purge Scan™ technology (U.S. Patent Number 6,415,659) |
| Case Material |
structural resin |
| Keypad |
5 keys |
| Meter Specifications: |
| Display |
3.5 in. (9 cm) |
| Weight |
2.1 lbs (1 kg) |
| Memory |
100 data frames (200 opt.) |
| Rating |
Waterproof NEMA 6 [IP67] |
| Power |
3 "C" batteries |
| Battery Life |
12 hours |
| Temperature |
23-122°F (-5 - 50°C) |
| Cable |
6 ft. (1.83 m) |
| Flow Cell Specifications: |
| 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.
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| Venting Modes |
horizontal and vertical |
| Sonde Connection |
bayonet-style twist mount |
| Sonde Specifications: |
| Size |
3 in. x 9 in. (8 x 23 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) |
± 0.2°C (0.36°F) |
0.01°C (0.018°F |
| DO |
0 to 20 mg/l |
± 0.2 mg/l |
0.01 mg/l |
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0 to 100 mS/cm |
±1% of reading ± 1 count |
4 Digits |
| pH |
2 to 12 units |
± 0.2 units |
0.01 units |
| ORP |
-999 to 999 mV |
± 20 mV |
1 mV |
Turbidity
(MP20DT Only) |
0 to 1,000 NTU |
± 5% of reading ± 1 NTU |
1 NTU |
| Salinity* |
0 to 70 PSS |
± 1% of reading ± 1count |
0.01 PSS |
| *Calculated |
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| Purge Scan Specifications: |
| Parameter Stabilization range criteria* |
pH ± .2 units
DO ± 0.2 mg/l
Conductivity ± 0.020 mS/cm
ORP ± 20 millivolts
Turbidity ± 1 NTU |
| *NOTE: These are default ranges; settings are adjustable to meet site specifications. |
| Stabilization basis |
3
consecutive readings of selected parameters (one or more of above 5)
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. |
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Elapsed time since Purge Scan initiated shows at the bottom of the screen.
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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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Stabilization of purge water quality is signaled visually and audibly when 3
consecutive readings of selected quality parameters (one or more of
above 5) fall within the selected ranges. The time interval between
readings is selected from 1 to 9 minutes. For example, if 2 minutes is
selected as the interval between stabilization readings , then
stabilization would be signaled when 3 consecutive 2-minute intervals
showed in-range readings at the end of each interval, requiring 6 total
minutes of stabilized purge water quality. The elapsed time since Purge
Scan was initiated is displayed 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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