Geometrics Memory-Mag G-856AX, Руководство по эксплуатации

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Geometrics, Inc
.
G-856AX Operation Manual
50
Reset Switch
Figure 23. Internal reset switch.
Specifications

Displays - Six digit display of magnetic field to resolution of 0.1 gamma or time
to nearest second. Additional three-digit display of station, day of year, and line
number.

Resolution - Typically 0.1 gamma in average conditions. May degrade to lower
resolution in weak fields, noisy conditions or high gradients.

Absolute accuracy - One gamma, limited by remnant magnetism in sensor and
crystal oscillator accuracy.

Clock - Julian clock with stability of 5 seconds per month at room temperature
and 5 seconds per day over the temperature range of -20 to +50 degrees Celsius.

Tuning - Push button tuning from keyboard with current value displayed on
request. Tuning range 20 to 90

T.

Gradient - Tolerates gradients to 1800 gammas/meter. When high Tolerance
gradients truncate count interval, maintains partial reading to an accuracy
consistent with data.

Cycle Time - Complete field measurement in three seconds in normal operation.
Internal switch selection for faster cycle (1.5 seconds) at reduced resolution or
longer cycles for increased resolution.

Manual Read - Takes reading on command. Will store data in memory on
command.

Memory - Stores more than 5700 readings in survey mode, keeping track of