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MAN B&W 18.07
Identification of Instruments
The instruments and sensors are identified by a
position number which <strong>is</strong> made up of a combination
of letters and an identification number:
Measured variables
First letters:
DS Density switch
DT Density transmitter
FT Flow transmitter
FS Flow switch
GT Gauging transmitter (Index, load)
LI Level indication, local
LS Level switch
LT Level transmitter
PDI Pressure difference indication, local
PDS Pressure difference switch
PDT Pressure difference transmitter
PI Pressure indication, local
PS Pressure switch
PT Pressure transmitter
ST Speed transmitter
TC Thermo couple (NiCr�Ni)
TE Temperature element (Pt 00)
TI Temperature indication, local
TS Temperature switch
VS V<strong>is</strong>cosity switch
VT V<strong>is</strong>cosity transmitter
WI Vibration indication, local
WS Vibration switch
WT Vibration transmitter
XC Unclassified control
XS Unclassified switch
XT Unclassified transmitter
ZS Position switch
ZT Position transmitter (proximity switch)
ZV Position valve (solenoid valve)
Location of measuring point
Ident. number:
xx Manoeuvring system
2xx Hydraulic power supply system
4xx Combustion pressure superv<strong>is</strong>ion
20xx ECS to/from safety system
2 xx ECS to/from remote control system
22xx ECS to/from alarm system
30xx ECS m<strong>is</strong>cellaneous input/output
40xx Tacho/crankshaft position system
4 xx Engine cylinder components
50xx VOC, supply system
5 xx VOC, sealing oil system
52xx VOC, control oil system
53xx VOC, other related systems
Table 18.07.01: Identification of instruments
54xx VOC, engine related components
80xx Fuel oil system
8 xx Lubricating oil system
82xx Cylinder lube oil system
83xx Stuffing box drain system
84xx Cooling water systems
85xx Compressed air systems
86xx Scavenge air system
87xx Exhaust gas system
88xx M<strong>is</strong>cellaneous functions
90xx Project specific functions
xxxx�A Alternative redundant sensors
xxxx� Cylinder/turbocharger numbers
ECS: Engine Control System
VOC: Volatile Organic Compound
Functions
Secondary letters:
A Alarm
AH Alarm, high
AL Alarm, low
C Control
H High
I Indication
L Low
R Recording
S Switching
X Unclassified function
Y Slow down
Z Shut down
Page of
Repeated signals
Signals which are repeated for example for each cylinder
or turbocharger are provided with a suffix number
indicating the location, ‘ ’ for cylinder , etc.
If redundant sensors are applied for the same measuring
point, the suffix <strong>is</strong> a letter: A, B, C, etc.
Examples:
TI 8005 indicates a local temperature indication (thermometer)
in the fuel oil system.
ZS 2�A C and ZS 2�B C indicate that there are
two position switches in the manoeuvring system, A
and B for control of the main starting air valve position.
PT 850 I AL Y indicates a pressure transmitter located
in the control air supply for remote indication, alarm
for low pressure and slow down for low pressure.
MAN B&W MC/MC-C, ME/ME�C/ME�GI/ME-B engines 198 45 85�1.5
MAN Diesel