Appendix B3

Appendix B(3) Specifications for serial numbers from 141 and up                                                                                                                                                                                                                                     and meters having a serial number followed by a  U


·        Three resistance measurement ranges:1.9999 Kohms, 19.999 Ohms and 1999.9 milliOhms.

·        IP (Quadrature Component) measurement range:1.9999 and 199.99 ohms

·        Transmitter constant current choices:2.0 milliamps when on the 1999.9 ohm range or 20.0 milliamps when on the 19.999 ohm range or the 1.9999  ohm range

·        Input resistance: 200 Megohms

·        Power source: 4 standard “D” size alkaline batteries

·        Accuracy: Better than 0.1 percent plus or minus 3 least significant digits (LSD) over 0°C to 50°C ambient.

·        Switching frequency: 2.50 Hertz plus or minus 0.01 percent.  

·        No mechanical relays

·        Designed to operate with stainless steel electrodes. No nonpolarizing electrodes required to operate in either the resistivity or the IP mode.

·        Transmitter maximum compliance voltage: up to 640 peak-to-peak at 2 mA or 450 peak-to-peak at 20 mA (values for compliance voltage assume fresh batteries at room temperature)

·        Operating Temperature Range: -10 to +50 degrees Celsius (limited by LCD)

·        Storage Temperature Range: -20 to + 75 degrees Celsius

·        Housing: water tight, high-impact ABS plastic

·        Display device: 4.5 digit LCD Digital Panel Meter

·        Analog to digital converter: laboratory grade +/- 20,000 dual slope integrated 

·        Method of demodulation and detection: Synchronous Demodulation

·        Dimensions: 36.3 x 27.4 x 15.8 cm (14.3 x 10.8 x 6.2 inches)

·        Weight:    4.3 Kilos   (9.5 pounds)

·        Impact resistance: will sustain a drop of one meter to a concrete surface (vibration isolated printed circuit board)

·        Resistance (in phase or real) mode resolution:  0.1 milliohm

·        IP (quadrature component) mode resolution:  0.01 milliohm

·        Typical resistance mode capabilities: Provides accurate Wenner Array resistivities with “a” spacings of 1 foot to 1000 feet (current electrode separation of 1,800 feet or more).  

·        Typical induced polarization mode capabilities: Provides accurate Wenner Array IP phase readings with “a” spacings of 1 foot to over 200 feet (300 feet between current electrodes).  

·        Readings per set of batteries at room temperature: 1999.9 W range – 1,400 readings

                                                                                        19.999 W range – 750 readings

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