Operazioni Code Description
PDT PRESSURE DIFFERENTIAL TRANSMITTER
PSH PRESSURE SWITCH HIGH
PSHH PRESSURE SWITCH HIGH HIGH
PSHL PRESSURE SWITCH HIGH LOW
PSL PRESSURE SWITCH LOW
PSLL PRESSURE SWITCH LOW LOW
PT PRESSURE TRANSMITTER
TDT TEMPERATURE DIFFERENTIAL TRANSMITTER
TS TEMPERATURE SWITCH
TSH TEMPERATURE SWITCH HIGH
TSHH TEMPERATURE SWITCH HIGH HIGH
TSHL TEMPERATURE SWITCH HIGH LOW
TSL TEMPERATURE SWITCH LOW
TSLL TEMPERATURE SWITCH LOW LOW
AT ANALYSIS TRANSMITTER
EC Control boards (e.g. EMS, LLS, etc.)
EJ Interconnecting panels, Junction boxes
EL Auxiliary Service Panel (ASP), Lighting, Small Power, tracing distribution boards
ER Electrical Power Unit (EPU)
ES Motor Driver panel (e.g. VFD, VSD, Soft-Starter, etc.)