LANDMAPPER-ERM-04 HANDHELD Electrical Resistivity (ER), Conductivity (EC), And Potential (SP) MEASURING DEVICE

LandMapper measures electrical parameters of soils and other semi-solid media - electrical resistivity (ER), conductivity (EC) and potential (EP). Device is compact, portable and can be used for non-attended measurements (monitoring). Measured parameters can be viewed on display as well as stored in internal non-volatile memory.

a. Range of measurements…………………………ER= 0.1-1 106 Ohm m ………………… EC= 1 10-6 - 10 Sm-1 (ERM-04 only)……………………………………………EP= -1 to +1 V (0.01 mV)
b. User-selectable ER/EC/SP modes of measurement.
c. Error of measurements is typically less than 1%. LandMapper automatically tunes to the range of measuring parameters for maximal accuracy.
d. The current of consumption no more……………………………………………………7.0 mA
e. Output voltage, no more…………………………………………………………………………5 V
f. Internal Impedance………………………………………………………2.5 MOhm
g. Measurements comparable with DC methods, frequency……………………1.25 Hz
h. User-defined K (geometrical coefficient)……………………………………………0.1 up to 99.9
i. Quantity of (changeable) K-coefficients..…………………………………………………..(9) 10
j. Quantity of data storage locations……………………………………………1000 Possibility to direct recording of measurement into specific memory cell in the field, reviewing and re-recording measurements
k. Real-time stamp to the accuracy of……………………1 sec Synchronization of the internal clock of the device with atomic clock through PC
l. Autonomous monitoring of ER/EC/EP at user-selected interval ………………………………… 1, 2, 5, 15, 30 min …………………………………… 1, 2, 4, 6, 12, 24 h.
m. Computer connection……………………….USB
n. Range of operation temperatures……………………from - 10 up to + 40 C0 or 14 to 100 F
o. Air humidity no more than……………………………………85 %
p. Weight of the device no more……………………… 250 g or 8 oz