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

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Geometrics, Inc
.
G-856AX Operation Manual
42
Troubleshooting
Survey Difficulty Probable Cause Corrective Action
1. Magnetometer out of tune. 1. Retune magnetometer.
2. Very high gradients. 2. Move out of the area or try
switching to a short count.
3. Broken sensor cable. 3. Replace or fix cable.
4. Loss of sensor fluid. 4. Fill sensor with Shell SOL-71 to
about 1/2 cm from the top.
Low Signal Amplitude
(Display indicates less
than 4 volts)
5. Sensor coil axis parallel to
field. 5. Align sensor North-.South or in
the side-mount position.
1. 50-60 Hz interference. 1. Move away from interference.
2. Microphonic interference. 2. Avoid vibration mechanical
shock to sensor while surveying.
3. Broken sensor cable. 3. Replace or fix cable.
4. High gradients. 4. See Erratic Readout.
Field display shows
truncated digits (poor
signal to noise ratio) and 5
beeps heard when reading
taken
5. Generally weak signal. 5. Lengthen polarize time.
1. Magnetic storm or
micropulsations. 1. Try later, especially at night.
2. High geomagnetic
gradient. 2. Hold sensor perfectly still. Try
shortened count.
3. Magnetic objects on
operator. 3. Remove iron objects from
pockets, belt, etc.
4. Magnetic dirt on sensor. 4. Scrub or scrape magnetic
particles off sensor.
5. Review causes under "field
display shows truncated
digits.
Erratic Readout
6. Low battery voltage. 6. Replace batteries.
1. Poor battery contact. 1. Check for loose batteries. Bend
out contacts and clean.
2. Low battery voltage 2. Remove batteries, then repress
reset switch (SW2).
Displays do not light
3. Internal memory error. 3. Replace batteries.
No reading on
STATION/DAY display 1. Inter-board cable not
connected. 1. Check cable for proper
connection.
Low Battery Voltage
Indication 1. Low voltage. 1. Replace batteries.
1. STORE depressed when
no reading lit on the display.
1. Take new reading, press
STORE before displays go out.
2. FIELD depressed when
depressing TIME did not
precede it.
2. FIELD reading already
displayed. The FIELD key is used
to return to the first half of memory
line. See Chapter 1, "Recalling
from Memory".
Display reads "ERROR".
3. Incorrect or invalid key or
key sequence depressed. 3. Consult Chapter 1. Depress key
sequence again.
Display reads "data Err" 1. Internal memory error 1. Print out or transcribe all stored
data, then depress
ERASE ,
ERASE .