JRC JLN-900 Installation And Instruction Manual page 268

JLN-900 Speed Log
Calibration and Sea Acceptance test. NJC-80 Sig.Processor, Transducer (TRU)
and optional Sig.Distributor
Contents
1 Scope
2 Equipment needed
3 Test procedure for bottom track (ground speed)
3.1 SOG Transducer angle calibration..............................................................................13-3
3.2 Speed Calibration (SOG) ....................................................................................................13-4
4 Test procedure for the STW unit, WTU PCB.
4.1 The boundary layer.....................................................................................................13-6
4.2 Calibration factors STW.............................................................................................13-6
4.2.1
4.2.2
4.2.3
5 Test procedure for optional Sig.Distributor
5.1 System signal flow .....................................................................................................13-9
6 Final inspection
7 SAT protocol
8 Protocol Multiple point calibration
TRU Calibration ............................................................................................13-7
Draught calibration (Single point calibration) ...............................................13-7
Speed Depending Calibration (Multiple Point Calibration) ..........................13-8
13-2
13-3
13-3
13-3
13-6
13-9
13-9
13-10
13-12