Multifunctional electrical exploration receiver MERI-24 is designed to detect electromagnetic fields produced by electric current flow in the ground.
MERI-24 allows operations by the following methods:
• Resistivity method (the amplitude of signal’s fundamental harmonic is measured),
• Frequency sounding-IP (the amplitudes of signal’s harmonics as well as the differential phase parameters at the output of the electrical and magnetic sensors are measured over a wide frequency range),
• Natural field (the constant electrical fields are measured),
• EMKPK (the fields of commercial frequency and cathodic protection are measured for mapping and studies of underground pipeline conditions).
The receiver is equipped with a LCD display and a keyboard and is power supplied from built-in storage batteries or from an external power supply source. The receiver measures the input signal, processes it, displays the values of the defined parameters on the LCD and saves them in memory. MERI-24 is a lightweight meter, supplied with a special carrying bag that is why it is ideal for electrical profiling, electrical sounding and other survey methods that require constant controller relocation.
|Inherent noise level||<1 µV|
|Maximum input supply||<2 V|
|Input resistance||5 MOhm|
|Built-in nonvolatile memory||8 Mb|
|PC synchronization interface||USB 1.1|
|Maximum power consumption||2 W|
|Internal power supply source||6 V / 3 Ah|
|External power supply source||12 V|
|Minimum operating time from internal batteries||10 h|
|First frequency range||0.019, 0.038, 0.076, 0.153, 0.305, 0.610, 1.221, 2.441, 4.883, 9.766, 19.53, 39.06, 78.13, 156.3, 312.5, 625.0 Hz|
|Second frequency range||0.021, 0.032, 0.042, 0.063, 0.083, 0.125, 0.167, 0.250, 0.333, 0.500, 0.667, 1.000, 1.333, 2.000, 2.667, 4.000, 5.333, 8.000, 10.67, 16.00, 21.33, 32.00, 42.67, 64.00, 85.33, 128.0, 170.7, 256.0, 341.3, 512.0 Hz|
|Additional frequencies||50, 60, 100, 120 Hz|
|Operating temperature||-20 ... +60 °С|