A&D FX-120i Precision Balance, 122 g x 0.001 g, with Breeze Break

Description

A&D FX-120i Precision Balance: 122 g × 0.001 g with 1-Second Stabilization

The A&D Weighing FX-120i is a compact precision balance from the FX-i series. It weighs up to 122 g with 0.001 g (1 mg) readability and settles in about one second. Inside is A&D’s patented Compact Super Hybrid Sensor (C-SHS), which pairs magnetic force restoration with a single-point load cell for fast, stable readings and excellent span stability. That speed and precision is why the FX-120i is one of the most popular balances on reloading benches, jewelry counters, and lab tables.

The bright vacuum fluorescent display (VFD) is easy to read from across the bench. A small acrylic breeze break shields the Ø130 mm stainless steel pan from drafts, and the standard RS-232C port connects the balance to a PC, a printer, or automated powder dispensing systems. Because the FX-120i uses external calibration, you calibrate it with a 100 g or 50 g weight whenever you need to.

Key Features

• 122 g × 0.001 g with 0.001 g repeatability and ±0.002 g linearity
• About 1-second stabilization (FAST setting in a good environment), with FAST, MID, and SLOW response settings for drafts and vibration
• Compact Super Hybrid Sensor (C-SHS) with ±2 ppm/°C sensitivity drift for consistent readings through the day
• Overload protection: an internal shock absorber guards the sensor against vertical and side overloads
• Small breeze break included to cut air currents around the Ø130 mm stainless steel pan
• Bright VFD display, refreshed 5, 10, or 20 times per second
• Multiple units: grams, grains, carats, pennyweight, troy ounces, ounces, pounds, momme, and more, plus a user-programmable unit
• Statistical Calculation Function (SCF): count, sum, max, min, range, average, standard deviation, and coefficient of variation
• Counting with ACAI (Automatic Counting Accuracy Improvement), percent mode, comparator with buzzer, and a hold function for moving samples
• GLP/GMP/GCP/ISO-compliant output (manufacturer, model, serial number, ID, and calibration reports) through the standard RS-232C port
• Built-in underhook for below-balance weighing, density work, and magnetic materials
• 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

Applications

Ammunition Reloading: Powder Charges, Bullets, and Brass

Reloaders pick the FX-120i for fast, repeatable powder charges. It reads to 0.02 grain, its 122 g (about 1,882 grain) capacity handles bullets and cases for weight sorting, and its one-second stabilization keeps you moving at the press. The RS-232C port lets it work with automated powder dispensers and tricklers that read the balance directly.

Jewelry, Gold, and Gemstones

Weigh stones in carats (0.005 ct), precious metals in pennyweight (dwt) or troy ounces (ozt), and pearls in momme (mom). The breeze break and fast response make it a good fit behind the counter or at the bench. When you buy or sell by weight, choose the NTEP-approved A&D FX-120iN for legal-for-trade use.

Laboratory, Education, and Quality Control

Research labs, classrooms, and QC departments use the FX-120i for sample prep, formulation, and checkweighing. Statistical calculations show averages and standard deviation right on the display, GLP output documents each result, and the underhook supports density measurements.

Pharmacy, Compounding Checks, and General Testing

Pharmacies, compounding labs, and testing departments use the FX-120i for in-house checks of doses, ingredient verification, and capsule-fill sampling. Percent mode shows each component as a share of a reference mass, and the RS-232C output records results for your files.

Parts Counting, Formulation, and Hobby Work

Count small parts with 5, 10, 25, 50, or 100 sample pieces and a minimum unit weight of 0.001 g. ACAI improves accuracy as you add pieces. Makers, model builders, and specialty crafters rely on its 1 mg readability for small batches and fine parts.

A&D FX-120i Specifications

Brand / Series	A&D Weighing / FX-i
Model (MPN)	FX-120i
Capacity	122 g
Readability	0.001 g
Readability in other units	0.02 gr, 0.005 ct, 0.001 dwt, 0.00005 ozt
Repeatability (standard deviation)	0.001 g
Linearity	±0.002 g
Stabilization time	Approx. 1 second (FAST setting, good environment)
Sensitivity drift	±2 ppm/°C (10 to 30 °C / 50 to 86 °F)
Weighing units	g, oz, lb, lb-oz, ozt, ct, mom, dwt, gr, pcs (counting), % (percent), user-programmable unit
Counting mode	Min. unit weight 0.001 g; 5, 10, 25, 50 or 100 sample pieces; ACAI
Percent mode	Min. 100% reference mass 0.100 g; 0.01%, 0.1%, or 1% display
Weighing pan	Ø130 mm stainless steel
Breeze break	Small breeze break included
Display	Vacuum fluorescent display (VFD), 5, 10, or 20 updates per second
Calibration	External, with a 100 g or 50 g calibration weight (not included)
Standard interface	RS-232C
Optional interfaces and power	FXi-02 Quick USB, FXi-08 Ethernet, or FXi-09 rechargeable battery (one at a time)
Underhook	Built in
Power	AC adapter (included), approx. 11 VA
Operating environment	5 to 40 °C (41 to 104 °F), 85% RH or less, non-condensing
Dimensions (W × D × H)	193 × 262.5 × 85.5 mm (7.6 × 10.3 × 3.4 in)
Net weight	Approx. 2.5 kg (5.5 lb)
Legal for trade	For NTEP-approved weighing, see the FX-120iN

What’s in the Box

• A&D FX-120i balance
• Ø130 mm stainless steel weighing pan and pan support
• Small breeze break
• AC adapter
• Quick start guide

A calibration weight is not included. Add the 100 g FX-120i calibration weight below if you want to calibrate it yourself.

Compatible Accessories and Upgrades

• 100 g calibration weight for the A&D FX-120i (sold separately, not included with the balance): the full-capacity weight value A&D lists for this model
• 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
• A&D FXi-15 carrying case: protects the balance in transport between the shop, range, or field

Related A&D Balances

• A&D FX-120iN, NTEP legal-for-trade version
• A&D FZ-120i, the same balance with one-touch internal calibration
• A&D FX-120iWP, IP65 washdown version
• A&D FX-300i, 320 g × 0.001 g
• A&D EJ-54D2 dual-range balance, 22 g × 0.0002 g
• A&D EJ-123 Newton balance, 120 g × 0.001 g

Calibration Options from MNM Scales

Get your FX-120i calibrated and ready to use on day one. Add either option to your order, and our TDA-certified technicians calibrate your balance in-house before it ships:

• 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 labs, pharmacies, QC programs, 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)

Frequently Asked Questions

Is the A&D FX-120i a good scale for reloading?

Yes. The FX-120i is a favorite with reloaders because it reads to 0.02 grain and settles in about one second. Its RS-232C port also lets it run with automated powder dispensers that read the balance directly.

What is the difference between the FX-120i and the FZ-120i?

They share the same 122 g × 0.001 g sensor and features. The FX-120i uses external calibration with a weight, and the FZ-120i adds one-touch internal calibration and a clock and calendar for GLP printouts.

Is the FX-120i legal for trade?

For selling by weight, choose the FX-120iN, the NTEP-approved version of this balance. The FX-120i is built for reloading, lab, pharmacy, and general testing work.

What calibration weight does the FX-120i use?

A&D lists 100 g or 50 g weights for external calibration. A weight is not included with the balance. Use our 100 g FX-120i calibration weight, or have us calibrate the balance before it ships.

Can MNM Scales calibrate the FX-120i before it ships?

Yes. Choose in-house calibration with a certificate, using NIST-tested weights, for $95, or NIST calibration with a NIST-traceable certificate for $395. Both are done in-house before your balance ships.

Can I connect the FX-120i to a computer or printer?

Yes. RS-232C is built in for two-way communication with a PC or printer. Add the FXi-02 Quick USB interface to send readings straight into Excel or Word, or the FXi-08 Ethernet interface for networked balances.

Can the FX-120i run on batteries?

Yes, with the optional FXi-09 built-in rechargeable battery, which gives about 8 hours of use on a 10-hour charge. It is installed in place of the USB or Ethernet option. Call us to order it with your balance.

FX-120i vs. EJ-54D2: which should I choose?

Pick the FX-120i for 1 mg readings up to 122 g with one-second stabilization and a full set of interfaces. If your samples weigh less than 22 g and you need 0.0002 g resolution, the EJ-54D2 is the better fit. Call us and we’ll help you match the balance to your application.

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.