A&D FG-150KAL 300 lb × 0.02 lb Bench Scale Guide
- pete8781
- Jul 31
- 5 min read
Need more details or help choosing the correct item? Call MNM Scales at (832) 290-3120 or email mnmscales@yahoo.com.
A&D FG-150KAL is a 300 lb large-platform digital bench scale built for shipping, receiving, stock control, parts counting and general industrial weighing. MNM lists the FG-150KAL with a 15.4 × 20.9 inch stainless weighing pan and high-resolution operation down to 0.02 lb, while A&D’s own FG manual confirms that the 150KAL supports three selectable pound readabilities: 0.1 lb, 0.05 lb and 0.02 lb. That combination gives buyers a useful choice between a steadier coarse display and finer indication for controlled weighing work.
FG-150KAL key specifications
The core model is rated for 300 lb / 150 kg and uses A&D’s large 390 × 530 mm platform, equivalent to about 15.4 × 20.9 inches. A&D’s manual lists selectable pound readabilities of 0.1, 0.05 and 0.02 lb for the FG-150KAL; the 0.05 lb setting is marked as the factory HIGH setting in that manual, while 0.02 lb is the HIGHER-resolution setting. In kilograms, the corresponding settings are 0.05, 0.02 and 0.01 kg. This matters because a product listing that says “300 lb × 0.02 lb” describes the finest available display setting, not necessarily the power-on factory configuration of every unit.
A&D also specifies 0.02 kg repeatability as standard deviation, ±0.05 kg linearity error, sensitivity drift of ±20 ppm/°C from 10°C to 30°C, a 26 mm seven-segment LCD, and a display update rate of 10 times per second. Operating conditions are -10°C to 40°C with less than 85% relative humidity and no condensation. Approximate scale weight is 16.4 kg, and overall dimensions are about 390 × 771 × 781 mm with the column installed.
What the selectable resolution means in practice
The FG series allows NORMAL, HIGH and HIGHER display resolution. Higher resolution lets an operator see smaller changes, but it does not change the scale’s physical 300 lb capacity or magically remove vibration, temperature effects, poor leveling or calibration uncertainty. For a receiving dock with boxes being placed quickly on the pan, 0.1 or 0.05 lb may be easier to read and appear steadier. For controlled parts, formulation or comparison work, 0.02 lb can be useful when the environment and procedure are stable enough to make those smaller steps meaningful.
Large platform for shipping and receiving
The “L” in KAL identifies the larger platform configuration. The 15.4 × 20.9 inch pan is better suited to cartons, totes and bulky items than the smaller FG-KAM/K-BM platform. The display is mounted on a column, keeping the readout visible when a package covers much of the pan. A&D describes one-second stabilization for the FG series, which helps when a receiving or shipping station processes repeated items throughout a shift.
Counting mode for inventory and parts
The FG-150KAL can calculate piece count from a stored unit weight. A&D’s manual allows sample quantities of 5, 10, 20, 50 or 100 pieces. For the FG-150K family, the total sample weight must exceed 125 g; if the sample is too light, the scale rejects the unit-weight registration and the operator should increase the number of sample pieces. A&D lists a minimum unit weight of 1.25 g and a maximum displayed count of 120,000 pieces for the 150K models. Counting accuracy improves when the sample is representative, the parts are consistent in weight, and a larger sample quantity is used for light components.
Comparator and checkweighing
The built-in comparator displays HI, OK or LO relative to stored upper and lower limits. That supports simple receiving checks, fill verification and packing workflows where the operator needs an immediate pass/fail indication. The optional FG-24 interface can add comparator relay outputs for external equipment while also providing RS-232C. A&D notes that FG-23 and FG-24 cannot be installed at the same time, so choose the option according to whether you need serial communication only or serial plus relay outputs.
AC and battery operation
The scale can run from its AC adapter or four C-size batteries. A&D rates alkaline battery life at approximately 150 hours under its stated conditions. Battery operation is useful for mobile receiving stations, stockrooms or temporary work areas where an outlet is inconvenient. Replace all four batteries together, observe polarity and remove batteries before long-term storage. A low-battery warning should be treated as a reason to replace the cells before critical weighing rather than as a normal operating state.
Optional RS-232C data output
FG-23 adds an RS-232C interface for connection to a printer or computer. The manual documents stream, command, Print-key and auto-print output modes with 2400, 4800 or 9600 bps settings. That makes the FG-150KAL useful in basic data-capture workflows, but buyers should remember that RS-232C is optional rather than built into every scale. Confirm the installed option and required cable before planning software integration.
Calibration and installation basics
Place the FG-150KAL on a solid, level surface and adjust the leveling feet using the spirit level. Avoid direct sun, strong drafts, heaters, air conditioners, unstable power, strong magnetic fields and locations prone to static electricity. A&D directs users to calibrate after first installation, after moving the scale, when the environment changes, and on a regular schedule. The manual’s external-weight procedure starts with at least a 30-minute warm-up and an empty, stable pan. A&D lists 300 lb / 150 kg as the factory calibration-weight setting for the FG-150KAL, although the calibration value can be changed to match a suitable reference weight.
Important: FG-150KAL is not the same as FG-150KALN
Do not assume the high-resolution FG-150KAL is the legal-for-trade version. A&D uses an “N” suffix on the trade-approved U.S. variants, such as FG-150KALN, and those models use different regulated readability. The non-N FG-150KAL discussed here is the high-resolution industrial version. If a transaction requires a certified legal-for-trade scale, verify the exact model suffix, NTEP certificate and local requirements before purchase.
Who should consider the FG-150KAL?
This model is a strong fit for warehouses weighing cartons up to 300 lb, receiving departments checking inbound materials, stockrooms counting consistent parts, shipping stations verifying package weight, production areas using HI/OK/LO limits, and general industrial users who want a large stainless platform with selectable resolution. It is less appropriate when the application requires washdown protection, certified trade use, much finer laboratory resolution or a capacity above 300 lb.
FAQ
What is the maximum capacity? 300 lb / 150 kg. Can the FG-150KAL display 0.02 lb? Yes. A&D’s manual lists 0.1, 0.05 and 0.02 lb selectable readabilities for this model. What size is the platform? About 15.4 × 20.9 inches / 390 × 530 mm. Can it count parts? Yes. It supports counting from 5, 10, 20, 50 or 100-piece samples, with a 1.25 g listed minimum unit weight for the FG-150K family. Does it have RS-232C built in? RS-232C is optional through FG-23 or through FG-24 with comparator relay output. Can it run on batteries? Yes. Four C-size batteries can provide approximately 150 hours with alkaline cells under A&D’s stated conditions. Is FG-150KAL NTEP legal for trade? Do not assume so. The legal-for-trade U.S. variant uses the N suffix, such as FG-150KALN. When should it be calibrated? A&D recommends calibration at first use, after relocation, after meaningful environmental changes and periodically.
Technical references
A&D FG Series product and instruction documentation were used to verify selectable resolution, counting, comparator, calibration, battery and RS-232C behavior. Always use the manual supplied with the exact scale revision for service work.
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