SonTek, a Xylem brand
38
RiverSurveyor S5/M9 System Manual (February 2013)
3. Magnetic influence (Q0 H9 V9 M211):
Failed Calibration. Please Repeat Calibration!
Calibration duration = 110 seconds
M211.00 = Magnetic influence is unacceptable
Q0 = Non-uniform magnetic field
H9 = Complete horizontal rotation
V9 = High pitch/roll
Recommendation(s):
Magnetic influence needs to be reduced in order to calibrate compass.
a.
Consider calibrating compass in another physical location away from any large ferrous
objects above/below the water surface (i.e. reinforced concrete piers or bridges, large metal
boats/buildings, pipelines, large ships, etc…). Measurements should be made in locations with
similar magnetic influences as the location of the compass calibration.
b.
Check area in vicinity of instrument for smaller ferrous objects (i.e. hand tools, hardware,
cell phones, keys, etc…) and remove those objects or increase the distance between the small
ferrous objects and instrument
4. Magnetic influence with low pitch/roll (Q4 H9 V2 M157):
Failed Calibration. Please Repeat Calibration!
Calibration duration = 110 seconds
M157.00 = Magnetic influence is unacceptable
Q4 = Non-uniform magnetic field
H9 = Complete horizontal rotation
V2 = Low pitch/roll
Recommendation(s):
Magnetic influence needs to be reduced in order to calibrate compass.
a.
Consider calibrating compass in another physical location away from any large ferrous
objects above/below the water surface (i.e. reinforced concrete piers or bridges, large metal
boats/buildings, pipelines, large ships, etc…). Measurements should be made in locations with
similar magnetic influences as the location of the compass calibration.
b.
Check area in vicinity of instrument for smaller ferrous objects (i.e. hand tools, hardware,
cell phones, keys, etc…) and remove those objects or increase the distance between the small
ferrous objects and instrument
5. Clean Cal (Q9 H9 V7 M21):
Passed Calibration
Calibration duration = 110 seconds
M21.00 = Magnetic influence is acceptable
Содержание SonTek River Surveyor M9
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Страница 150: ...SonTek a Xylem brand 140 RiverSurveyor S5 M9 System Manual February 2013 Figure 126 Island Edge...