Identification Of Instruments - Man B&W S50MC-C8-TII Project Manual

MAN B&W

Identification of Instruments

The instruments and sensors are identified by a
position number which is made up of a combina-
tion 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 Viscosity switch
VT Viscosity 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 supervision
20xx ECS to/from safety system
2xx ECS to/from remote control system
22xx ECS to/from alarm system
30xx ECS miscellaneous input/output
40xx Tacho/crankshaft position system
4xx Engine cylinder components
50xx VOC, supply system
5xx VOC, sealing oil system
52xx VOC, control oil system
53xx VOC, other related systems
Table 18.07.01: Identification of instruments
MAN B&W MC/MC-C, ME/MEC/MEGI/ME-B engines
54xx VOC, engine related components
80xx Fuel oil system
8xx 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 Miscellaneous 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
Repeated signals
Signals which are repeated for example for each cylin-
der or turbocharger are provided with a suffix number
indicating the location, '' for cylinder , etc.
If redundant sensors are applied for the same measur-
ing point, the suffix is a letter: A, B, C, etc.
Examples:
TI 8005 indicates a local temperature indication (ther-
mometer) 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 locat-
ed in the control air supply for remote indication, alarm
for low pressure and slow down for low pressure.
MAN Diesel
18.07
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