Sib Geofiz Pribor Ltd
“to” — maximum permissible noise value;
“?” — result of comparison with a permissible noise value, “X” means a reject item;
“Rlkg” — leakage resistance;
“from” — minimum permissible leakage value;
“?” — result of comparison with a permissible leakage value, “X” means a reject
item;
“R” — DC resistance;
“from” and “to” — range of permissible resistance values;
“?” — result of comparison with a permissible resistance value, “X” means a reject
item;
“FN” — natural frequency;
“from” and “to” — range of permissible natural frequency values;
“?” — result of comparison with a permissible natural frequency value, “X” means a
reject item;
“Dmpg” — damping;
“from” and “to” — range of permissible damping values;
“?” — result of comparison with a permissible damping value, “X” means a reject
item;
“Sens” — sensitivity;
“from” and “to” — range of permissible sensitivity values;
«?» — result of comparison with permissible sensitivity values, “X” means a reject
item;
“THD” — total harmonic distortion;
“to” — maximum permissible THD value;
“?” — result of comparison with a permissible THD value, “X” means a reject item;
“Z” — string impedance;
“Tmsr” — temperature at the time of testing.
The self-diagnostics spreadsheet
contains the following columns:
“Date” — self-diagnostics performance date;
“Time” — self-diagnostics performance time;
“THD” — total harmonic distortion of the Tester measuring channel;
“eTHD” — even harmonics;
“oTHD” — odd harmonics;
“?” —result of comparison with the maximum permissible THD value 0.2%, “X”
means a negative result;
“Offset” — DC offset of the Tester measuring channel;
“?” — result of comparison with the maximum permissible offset value 6.0 mV, “X”
means a negative result;
“Noise ”— inherent noise of the Tester measuring channel;
“?” — result of comparison with the maximum permissible inherent noise value 1.0
mV, “X” means a negative result;
“R” — measured value of the resistance of standard 1000 Ohm resistor;
“?” — result of comparison with the permissible range from 990 to 1010 Ohm, “X”
means a negative result;
“Rlkg” — measured value of the resistance of standard 10.0 MΩ resistor;
“?” — result of comparison with the permissible range from 9.5 to 10.5 MΩ, “X”
means a negative result;
“Z” — measured value of the impedance of standard 1000 Ohm resistor;
“?” — result of comparison with the permissible range from 990 to 1010 Ohm, “X”
42