measurements_2014.pptx
TRANSCRIPT
Measurements
Soundings; Ullages; Draught Marks
Purpose
Ship Safety
Equipment monitoring
Engine performance monitoring
Cargo monitoring
Ship Safety
Battery Levels for Ships Radio & GMDSS
Unmanned Machinery Space monitoring
Trim and List indicators
Draught Surveys
Equipment Monitoring
UMS equipment on Bridge
Machinery Rounds
Comparing actual readings with UMS readings
Be diligent and conscientious – record units alongside every figure
Cargo Monitoring
Draught survey
Soundings
Ullage measurements
Inert gas supply
Reading Level Guages
Beware of Parallax Error
Parallax is a displacement or difference in the apparent position of an object viewed along two different lines of sight, and is measured by the angle or semi-angle of inclination between those two lines.
Pressure Measurements
Bourdon Tube Pressure Gauge
Manometer
Temperature Gauges
Thermometersa. Mercuryb. Alcohol solutionc. Bi-metallicd. Burdon tube
Level Measurements
Soundings
Ullages
Sight Glasses
Dipsticks
Sounding
Ullage
Draft Marks
Forward – Painted on both sides of the Stem
Aft – Painted on both sides in line with the Rudder Stock
Amidships – On both sides near the Loadline markings
Load Lines & Draught Marks
W
TF
F
S
T
WNA
All lines are 25mm in thickness
Deck line
300mm
450mm
540mm
230mm 230mm
2
9 M 8
6 8
4 WL 6
11M
Fwd Aft
2
9 M 8
6 8
4 WL 6
10M
Fwd Aft
8
6
4 WL
11M 2
9 M
8
6
FwdAft
http://www.youtube.com/watch?v=eeLL1kt2KiU
http://www.youtube.com/watch?v=s0QgeIrSuBs
d s
d l
d p60%
Level trim
Level trim
Service tr imM ean draught d l
100%
Draught and Trim
Flow MeasurementWorks on Rate over a time period
DensityUsed for the calculation of Dock Water Allowance &Density of liquid cargos