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MiniSting™ R1
Product Documents
Product FAQ (134.1 KB) Product Specifications (2.86 MB)The MiniSting™ R1 is a high-powered, induced polarization (IP) and electrical resistivity instrument used for testing grounding grids, soil resistivity testing for corrosion protection design, and more. This single-channel tool is engineered to be the best tool for manual resistivity jobs—ease of use, low cost, and high accuracy make it ideal for low-manpower explorations and educational and training demonstrations.
Use Cases:
The MiniSting™ is versatile enough for both water and earth uses, including:
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Vertical Electrical Sounding (VES)
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Performing the IEEE Fall-Off-Potential (FOP) method
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Groundwater Investigation
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Cathodic Protection Design
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Grounding Studies
Features:
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This high-powered, lightweight tool has a built-in rechargeable NiMH battery—you can get a day’s worth of manual surveying from one charge. The system includes a battery charger.
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An easy-to-use, menu-driven system. Recorded data is saved in the internal memory and at a convenient time downloaded to a computer for further processing. Our utility software, The Administrator, is included with the MiniSting™ as well as a serial download cable with a USB adapter. The Administrator software is used for data download.
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Rugged construction. Whether you’re working in the swamp or the desert, the MiniSting™ is versatile enough to withstand harsh climates and provide accurate data.
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The MiniSting™ reports in feet or meter: For example, the Wenner 4-pin method is typically specified for Wenner spacing in feet, but the reporting is required in Ohm Centimeter. Simply set the MiniSting™ for feet before surveying, and switch to meter after the survey before you download the data. Then move the decimal point two steps to the right to get Ohm Centimeter. This instrument can be configured in several ways depending on what you are measuring.
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Pairs seamlessly with AGI tools for immediate results. For example, you can get more from your data when you pair the MiniSting™ with the EarthImager 1D—in addition to empirical calculations, you’ll also get modeled calculations that represent true resistivity, layer thickness, and depth to each layer so you can use your results and immediately take next steps with certainty.
The MiniSting™ is preprogrammed in manual measurement mode for the following arrays:
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Wenner*
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Schlumberger*
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Dipole-Dipole*
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Pole-Dipole*
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Pole-Pole*
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Mise-A-La-Masse*
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Self-Potential (SP)*
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Resistance
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Azimuthal
*Visit the glossary to learn more
This product is qualified for 100% financing. Learn more.
Related Products
Product Documents
Product FAQ (134.1 KB) Product Specifications (2.86 MB)Not sure what you need for your survey?
Product Details
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Measurement Modes |
Apparent resistivity, resistance, voltage (SP), induced polarization (IP), and battery voltage. |
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Measurement Range |
400 Kohms to 0.1 milliohms (resistance). 0-500 V full-scale voltage autoranging. |
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Measuring Resolution |
Max 30 nV—depends on voltage level. |
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Screen Resolution |
4 digits in engineering notation. |
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Output Current |
1-2-5-10-20-50-100-200-500 mA. |
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Output Voltage |
The user can switch between high and low voltage limit for the transmitter (800 Vp-p or 320 Vp-p voltage limit). Actual electrode voltage depends on transmitted current and ground resistivity. |
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Input Gain Ranging |
Automatic. Always uses full dynamic range of receiver. |
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Input Impedance |
>20 MOhm. |
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Input Voltage |
Max 500 V. |
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SP Compensation |
Automatic cancellation of SP voltages during resistivity measurement. Constant and linearly varying SP cancels completely. |
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Type Of IP Measurement |
Time domain chargeability (M). Six time slots measured and stored in memory. |
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IP Current Transmission |
ON+, OFF, ON-, OFF. |
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IP Cycle Times |
1, 2, 4, and 8 s. |
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Measure Cycles |
Running average of measurement displayed after each cycle. Automatic cycle stops when reading errors fall below user set limit or user set max cycles are done. |
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Cycle Times |
Basic measure time is 1.2, 3.6, 7.2, or 14.4 s, as selected by user via keyboard. Autoranging and commutation adds about 1.4 s. |
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Signal Processing |
Continuous averaging after each complete cycle. Noise errors calculated and displayed as percentage of reading. Reading displayed as resistance (dV/I) and apparent resistivity (Ohmm). Resistivity is calculated using user-entered electrode distances. |
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Noise Suppression |
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Total Accuracy |
Better than 1% of reading in most cases (lab measurements). Field measurement accuracy depends on ground noise and resistivity. Instrument will calculate and display running estimate of measuring accuracy. |
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System Calibration |
Calibration is done digitally by the microprocessor based on correction values stored in memory. |
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Supported Configurations |
Resistance, Schlumberger, Wenner, dipole-dipole, pole-dipole, pole-pole, azimuthal, mise-a-la-masse, SP (absolute), and SP (gradient). |
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Data Storage |
Full resolution reading average and error are stored along with user-entered coordinates and time of day for each measurement. Storage is effected automatically. |
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Memory Capacity |
More than 3,000 measuring points can be stored in internal memory. |
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Data Transmission |
RS-232C channel included to dump data from instrument to PC on user command. USB adapter is included for data download to a USB port. |
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User Controls |
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Display |
Alphanumeric LCD display (four lines x 20 characters) with night-light. |
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Connectors |
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Power Supply |
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Operating Time |
Depends on conditions. Internal circuitry in auto-mode adjusts current to save energy. At 20 mA output current and 10 kOhm electrode resistance, more than 2,000 cycles are available from a fully charged battery pack. |
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Battery Charger |
Dual-stage charger with switchable input (115/230 V AC at 50-60 cycles). |
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Weight |
6.6 kg (14.5 lb.). |
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Dimensions |
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