A&D FX-300iN NTEP Precision Balance, 320 g x 0.001 g, Legal for Trade, External Calibration (Discontinued, Replaced by FX-323N)

Description

A&D FX-300iN NTEP Precision Balance: 320 g × 0.001 g, Legal for Trade (Discontinued, Replaced by the FX-323N)

The A&D Weighing FX-300iN is the NTEP-approved, legal-for-trade version of the popular FX-300i precision balance. It weighs up to 320 g, displays 0.001 g, and carries an NTEP Class II Certificate of Conformance with a certified division of e = 0.01 g. A&D’s patented Compact Super Hybrid Sensor (C-SHS) settles in about one second, so you can weigh, price, and package product quickly at the counter.

The FX-300iN lets you choose how the legal-for-trade display works. In the default e = 10d setting, the balance shows 0.001 g with the last digit marked as non-certified. Switch to e = d and it reads directly in 0.01 g, which many dispensaries, jewelers, and pharmacies prefer. A Measurement Canada mode is also built in. The bright VFD display, small breeze break, and Ø130 mm stainless steel pan make it easy to use all day, and the standard RS-232C port connects it to a printer, PC, or point-of-sale system.

Key Features

• 320 g × 0.001 g with 0.001 g repeatability and ±0.002 g linearity
• NTEP Class II, CC 08-045: e = 0.01 g, n_max 32,000, for selling by weight
• Selectable e = 10d or e = d in NTEP mode, plus a Measurement Canada mode
• About 1-second stabilization with FAST, MID, and SLOW response settings for drafts and vibration
• Compact Super Hybrid Sensor (C-SHS) with ±2 ppm/°C sensitivity drift and built-in overload protection
• Small breeze break included (3.4 in. high) to shield the Ø130 mm stainless steel pan from air currents
• Legal-for-trade units: grams, ounces, pounds, troy ounces, carats, and pennyweight, plus parts counting
• Bright VFD display, refreshed 5, 10, or 20 times per second
• GLP/GMP/GCP/ISO-compliant output through the standard RS-232C port
• Optional upgrades: Quick USB (FXi-02), Ethernet with WinCT-Plus software (FXi-08), or a built-in rechargeable battery (FXi-09). One of these three installs at a time
• Built-in underhook for below-balance weighing
• 5-year A&D warranty

Applications

Cannabis Dispensaries and Packaging

The FX-300iN is a go-to scale for dispensary counters and packaging rooms that need a Class II legal-for-trade balance. Set it to e = d for direct 0.01 g readings, use tare for containers, and send each weight to your POS or label printer through RS-232C.

Jewelry, Gold, and Precious Metals

Buy and sell by weight in carats, pennyweight (dwt), troy ounces (ozt), or grams with an NTEP-approved balance. The 320 g capacity covers rings, chains, coins, and small lots of scrap gold.

Pharmacy and Compounding

Pharmacies use the FX-300iN for prescription filling, compounding, and pill counting where a legal-for-trade balance is required. It is also a good fit for in-house dose checks and general testing.

Laboratory, Quality Control, and Shipping Small Parts

Labs and QC departments use it for sample prep and checkweighing. Parts counting with 5, 10, 25, 50, or 100 sample pieces and Automatic Counting Accuracy Improvement (ACAI) makes it useful for counting small components before they ship.

A&D FX-300iN Specifications

What’s in the Box

• A&D FX-300iN balance
• Ø130 mm stainless steel weighing pan and pan support
• Small breeze break
• AC adapter
• Front capacity label for the e = d setting
• Instruction manual and legal-for-trade supplement

A calibration weight is not included. Add the 100 g calibration weight below if you want to calibrate it yourself, or have us calibrate it for you.

Compatible Accessories and Upgrades

• 100 g calibration weight (sold separately, not included with the balance): one of the three weight values A&D lists for the FX-300iN
• A&D FXi-02 Quick USB interface with cable: sends readings straight into Excel, Word, or Notepad with no driver needed
• A&D FXi-08 Ethernet interface: connects one or several balances to your network with WinCT-Plus software
• A&D TB-648 original AC adapter: a genuine replacement or spare power supply for the FX-i series
• A&D 043008433 replacement weighing pan, 130 mm: genuine pan for the FX-120i, FX-200i, and FX-300i families
• A&D FXi-15 carrying case: protects the balance in transport

Related A&D Balances

• A&D FX-323N Fortis, A&D’s newer 320 g NTEP balance
• A&D FX-300iWPN, IP65 washdown NTEP version
• A&D FX-300i, the non-NTEP version for lab and reloading work
• A&D FZ-300i, 320 g with one-touch internal calibration
• A&D FX-200iN, 220 g NTEP
• A&D FX-120iN, 122 g NTEP

Calibration for the FX-300iN and FX-323N

Already own an A&D FX-300iN? Our TDA-certified technicians calibrate it in-house, by mail-in or in our Houston-area shop, and include a certificate. Buying the replacement FX-323N? Add calibration to that order and it ships calibrated:

• In-house calibration with certificate, using NIST-tested weights: $95. We calibrate and verify your balance with NIST-tested weights and include a calibration certificate, so it arrives set up and accurate. Add $95 calibration to cart
• NIST calibration with a NIST-traceable certificate: $395. Full calibration documented on a NIST-traceable certificate, for dispensaries, pharmacies, labs, and audits that need a paper trail. Add $395 NIST calibration to cart

We also recalibrate balances you already own, by mail-in or in our shop, with on-site service across Houston and the surrounding area. Request calibration with your order or call (832) 290-3120.

Manuals and Documents

• A&D FX-i / FZ-i series brochure (PDF)
• A&D FX-i / FZ-i instruction manual (PDF)
• A&D FX-iN legal-for-trade supplementary manual (PDF)
• NTEP Certificate of Conformance 08-045 (PDF)

Frequently Asked Questions

Is the A&D FX-300iN legal for trade?

Yes. The FX-300iN is NTEP Class II approved under Certificate of Conformance 08-045, with e = 0.01 g. Your state may also require the balance to be registered, inspected, and sealed before it goes into service.

What is the difference between e = 10d and e = d?

In e = 10d (the default), the balance displays 0.001 g but only the 0.01 g digit is certified, and the last digit is marked. In e = d, it displays 0.01 g directly. Both settings are NTEP-approved, and the e = d front label comes in the box.

What is the difference between the FX-300iN and the FX-300i?

They share the same 320 g × 0.001 g sensor. The FX-300iN adds NTEP legal-for-trade modes, a ZERO and TARE key layout, and sealing provisions. The FX-300i is for lab, reloading, and other non-trade use.

Does the FX-300iN read in grains?

Grains aren’t one of the NTEP units, so they don’t show in legal-for-trade mode. When the balance is set to A&D standard mode for non-trade use, grains, momme, and percent mode are available.

What calibration weight does the FX-300iN use?

A&D lists 300 g, 200 g, or 100 g weights for external calibration. A weight is not included with the balance. Use our 100 g calibration weight, or have us calibrate the balance for you.

Can MNM Scales calibrate my FX-300iN?

Yes. We calibrate FX-300iN balances you already own by mail-in or in our Houston-area shop, with on-site service across Houston and the surrounding area. Choose in-house calibration with a certificate, using NIST-tested weights, for $95, or NIST calibration with a NIST-traceable certificate for $395.

Can I connect the FX-300iN to a computer, printer, or POS system?

Yes. RS-232C is built in. Add the FXi-02 Quick USB interface to send readings straight into Excel or Word, or the FXi-08 Ethernet interface for networked balances. Install the option before the balance is sealed.

What replaced the A&D FX-300iN?

The A&D FX-323N is A&D’s replacement for the FX-300iN, with the same 320 g × 0.001 g capacity and NTEP Class II legal-for-trade approval (e = 0.01 g). Call us at (832) 290-3120 and we’ll help you move to the new model.

Why Buy Your A&D Balance from MNM Scales?

MNM Scales is an authorized A&D Weighing dealer and one of the largest scale distributors in the country, with one of the largest selections of balances and scales in every category. We offer free shipping in the continental U.S., in-house calibration and certificates, and real help choosing the right model from our Houston-area team. Wholesale and volume buyers can contact us for a quote.