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Soil Resistance Meters
Miller 400D Digital Soil Resistance Meter
by MC Miller Co.
Reads soil resistance at the push of a button.
Integrates with
Bluetooth-enabled PCs & PDAs for wireless data acquisition.
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MC Miller 400D |
MC Miller 400D with Bluetooth enabled PDA
(PDA sold separately) |
Advantages
- Digital resistance measurement range
from 0.01 Ω to 10 MΩ (auto-ranging).
- No need to select ranges or adjust dials
– resistance read at the push of a button.
- Bluetooth interface allows optional
data-logging via a Bluetooth-enabled PC (or PDA).
- Supplied with 4-Pin Wenner Method soil
resistivity survey program “ProCP Soil Resistivity.”
- Rugged, hard plastic case, safe to use
on wet ground, IP67 rated for dust and water intrusion.
- Accuracy:
0.01Ω to 1MΩ range: ±1.6% ±1 LS Display Digit ±0.01Ω
1MΩ to 10MΩ range*: ±5% ±1 LS Display Digit
- Resistance measurements are unaffected
by any stray interference signals that may be present in the earth
during readings, due to the use of narrow band-pass filters centered at
82.2 Hz (the unit’s operating frequency)
- Runs on a set of replaceable D-cell
alkaline batteries – no need to periodically recharge the unit or to
plug it into a power source.
- Performs 10,000 single readings on a
fresh set of batteries.
- Storage temperature range (with
batteries installed): -40°C to 50°C (-40°F to 122°F)
- Operating temperature range: -20°C to
54°C (-4°F to 129°F)
- Dimensions: 12" W x 10.5" L x 5.75" H
(30.5 cm x 26.7 cm x 14.6 cm)
- Weight: 8.6 lbs (3.9 kg)
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| Datalogging &
Software
Data-logging Capability
The Miller 400D Resistance Meter is
supplied with an “over-the-pipe” soil resistivity survey program known
as “ProCP Soil Resistivity”, which is based on the 4-Pin Wenner
Method.
 Software
Features & Benefits
- Errors associated with writing down
resistance meter readings and with subsequently calculating soil
resistivity values based on pin spacings are eliminated using the ProCP
Soil Resistivity program in conjunction with the Miller 400D Resistance
Meter.
- M. C. Miller’s ProCP Soil Resistivity
application (included) can be run on “off-the-shelf” PocketPC hardware
(Windows Mobile 5.0 or higher) or on a laptop PC. Hardware must be
Bluetooth-enabled.
- Reading locations are represented by
user-entered station numbers and readings are automatically position and
data/time stamped in cases where a GPS receiver is integrated with the
user’s handheld unit.
- Data can be stored for up to 4 electrode
(pin) spacings per reading location.Pin spacing values are user-entered
in “feet” or in “meters”.
- Resistance data directly acquired from
the Miller 400D are converted to soil resistivity values (expressed in
ohm.cm units) for each selected pin spacing value. Measured resistance
and calculated resistivity values are both stored per reading.
- Survey data are stored in XML files for
easy reading by other applications, including ProActive, M. C. Miller’s
Pipeline Integrity Data Management application. ProActive users are able
to easily integrate soil resistivity survey data with other
“over-the-pipe” survey data for enhanced data analysis. A conversion to
XLS file format (Excel Spreadsheet) option is also included.
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