The Smith Meter AccuLoad III-N4 is the NEMA 4X (Class I Division 2) version of the AccuLoad III electronic preset delivery system, in a stainless steel enclosure. It controls two loading arms as straight-product or blending arms, with sequential blending of up to six products per arm, ratio blending of up to three products, side-stream and wild-stream blending, up to 50 recipes and full additive control. FMS continues to supply and service existing AccuLoad III-N4 installations; ask about AccuLoad IV for new projects.
Key specifications
Arms / meters: 2 arms; up to 6 single-pulse or 3 dual-pulse product meter inputs
Additives: Up to 4 additive meter inputs with local I/O, up to 24 with remote I/O (AICB)
Blending: Straight, sequential (6 products per arm), ratio (3 products), side-stream, wild-stream and hybrid
Measurement: API tables LPG to crude, GPA TP-15/TP-16, temperature/pressure compensation, density correction, meter factor calculation, turbine meter diagnostics
Communications: 4 serial ports plus 10/100 Ethernet; Smith and Modbus protocols; network printing; card reader and Bluetooth options
I/O: Standard 11 digital inputs and 14 digital outputs; 21 inputs / 44 outputs with one remote AICB; up to 6 analog modules
Power / environment: 100-240 VAC universal, 58 W max; -40 to 140 °F; Type 4X stainless enclosure, approx. 35 lb
Approvals: UL/cUL Class I Div 2 Groups C & D, Class I Zone 2 IIB; NTEP CC 99-141; Measurement Canada AV-2361
How to read the model code
Example: ALIII-N4-ALX2-1-1-1-A00000-10. Read the code left to right; each position selects one option:
Position 1 (Hardware model): ALIII-N4 = AccuLoad III, NEMA IV housing
Position 2 (Firmware): ALX1 = 1-arm operation; ALX2 = 2-arm operation
Position 3 (Stop button): 0 = none; 1 = 120/230 V
Position 4 (Indicator lights): 0 = none; 1 = 120 V red/green; 2 = 240 V red/green; 3 = 120 V green/green
Position 5 (Hardware options): 0 = none; 1 = card reader
Position 6 (Analog modules, 5 digits, max 6 total): Digit 1 = RTDs; 2 = 4-20 mA inputs; 3 = 4-20 mA outputs; 4 = 1-5 VDC inputs; 5 = 1-5 VDC outputs (A = AICB board option where shown)
Position 7 (Fuse holders): 0-10
Remote AICB: REM-XP-A (explosion-proof remote enclosure with one AICB board)
A complete model number is required when ordering.
Pricing and lead time are quoted per configuration. Send the model code (or your application details), product, flow range, and pressure/temperature to Flow Measurement Services for a quote. Specifications summarized from Smith Meter bulletin SS06041; confirm current data with the factory before ordering.
Smith Meter (formerly FMC Technologies / TechnipFMC Measurement Solutions), now manufactured by Guidant. Flow Measurement Services supplies and services Smith Meter equipment.