API RP 1004:2003 pdf download

API RP 1004:2003 pdf download.Bottom Loading and Vapor Recovery for MC-306 & DOT-406 Tank Motor Vehicles.
5.4.2 Electrical Connection to the Loading Island
5.4.2.1 Vehicles and loading islands equipped for thermistor overfill control systems must use a green color coded receptacle ocke) on the vehicle, and a green color coded plug on the loading island both featuring eight electrical contacts and four attachment j-slo#sllocking pins, respectively. Both the plug and the receptacle must be designed to he compatible with the receptacle and plug shown in Figure 6A and fiB, respectively.
5.4.2.2 Vehicles and loading islands equipped Ir optical overfill control systems must use a blue color coded receptacle (socket I on the vehicle and a blue color coded plug on the loading island both featuring six electrical contacts and three attachment i-slots/locking pins, respectively. Both the plug and the receptacle must be designed to be compatible with the receptacle and plug as shown in Figure 7A and 7B, respectisely.
5.4.2.3 Loading islands equipped with a secondary overfill control system that will accept both thermistor type vehicle systems and optic type vehicle systenis and will automatically configure itself for proper operation of either type system (automatic-switching) shall he equipped with a black color coded plug on the loading island, featuring eight electrical contacts and four attachment locking pins.
Optionally, if it is necessary for the loading island to accommodate both thermistor and optic type vehicle systems with blue color coded receptacles (sockets) with three attachnient j.slots/locking pins, a second, blue, three locking pin plug (with six-electrical contact) per 5.4.4.2 may be added to the loading island.
5.4.3 Wiring Standards
5.4.3.1 Thermistor System
The wiring of a thermistor system must be in accordance with Figure 8. The wiring must he color coded in accordance with Table 2. The electrical receptade (socket) must be color coded green.
5.4.3.2 Optical System
The wiring of an optical system must be in accordance with Figure 9. The wiring must be color coded in accordancc with Table 3. The electrical receptacle (socket) must be color coded blue.
5.4.3.3 Data communications may condnct through auxiliary pin 9 or optional pin II as shown in Figure 8 and Figure 9. If optional pin II is used, data shall be in a serial format compatible with known industry standards or a publicly documented formai.
rscte: ‘The usc of standard conncct(ns alime does mit ensurc conipatibility with all types of secondary control and shutoft systems (for esample. tank sthicle secondary control systems supplied by one manufacturer and loading-rack shutofi syslerns supplied by another). Any secondary control system that Uses one of these standard connecttrs shall be designed and wired so that no signal can be given in permit loading without control and protection from overfill. The use of adapters may not ensure compatibility between different systems. If the opfional pin is used to transmit data, it must be flWCfl to not interfere with existing fimctionality and safety of the overfill protection system which may include fault conditions,
5.4.4 Receptacle Construction Standards
5.4.4.1 Thermistor System
Construction derails for thennistor receptacles and plugs arc shown in Figure 6A and 6B. respectively.
5.4.4.2 Optical System
Construction details for optical receptacles and plugs are shown in Figure 7A and 78. respectively.
Optionally, optic type vehicle systems, or vehicles equipped with onboard ((he vehicle control systems with optic type outputs may he equipped with a six electrical contact, blue color-coded receptacle (socket) fiaturing fiur attachment j-sloLs. This optional configuration (four attachment j-slots) optic socket is intended for usc at loading islands with a “universaiiauo-switching” secondary control system equipped with a black plug as described in 5.4.2.3.
5.4.5 Location of Receptacle
The plug receptacle on the vehicle must be located no more than 7 ñ (2.13 m) to the front or rear of the centerline of the bottom-loading adapters and must not interfere with loading operations.
5.5 RECOMMENDED FEATURES
5.5.1 Maintenance
Under normal operating conditions, the SSC system is called upon infrequently. The SSC system should be tested at each regular inspection to ensure that it functions properly.