A&D GX-4000 Precision Balance, 4100 g x 0.01 g, Internal Calibration (Discontinued, Replaced by GX-4002A)

Description

A&D GX-4000 Precision Balance: 4100 g × 0.01 g with Internal Calibration (Discontinued, Replaced by the GX-4002A)

The A&D Weighing GX-4000 is a toploading precision balance from A&D’s GX series. It weighs up to 4100 g with 0.01 g readability and calibrates itself with a motor-driven internal weight, so you never need to buy or handle a 4 kg calibration mass. A&D’s patented Super Hybrid Sensor (SHS) combines magnetic force restoration with a single-point load cell for readings in about one second.

Automatic Self Calibration (ASC) recalibrates the balance when the room temperature changes, and one-touch calibration is a single key press. The bright VFD display, 165 × 165 mm stainless steel pan, and dust- and splash-resistant keypad (IP54 level) suit busy labs and production benches. RS-232C, a clock and calendar for GLP records, data memory, and an underhook are all standard.

Key Features

• 4100 g × 0.01 g with 0.01 g repeatability and ±0.02 g linearity
• Motor-driven internal calibration with one-touch CAL and Automatic Self Calibration (ASC) for temperature changes
• Super Hybrid Sensor (SHS): about 1-second stabilization and ±2 ppm/°C sensitivity drift
• Large 165 × 165 mm (6.5 × 6.5 in.) stainless steel pan for beakers, containers, and bulk samples
• Bright VFD display, refreshed 5 or 10 times per second
• Multiple units: grams, ounces, pounds, lb-oz, troy ounces, pennyweight, carats, momme, grains, and a programmable unit
• Counting with ACAI, percent weighing, comparator, animal (hold) weighing, and density measurement
• GLP/GMP/GCP/ISO output with time, date, balance ID, serial number, and calibration data
• Data memory: up to 200 weighing results, or 100 with time and date
• RS-232C with A&D WinCT data software; optional USB (GX-02), comparator/current loop (GX-04), or analog output (GX-06)
• Built-in underhook for density work and below-balance weighing

Applications

Laboratory and Sample Preparation

The GX-4000 handles media, reagents, and solutions in large containers while still reading to 0.01 g. Internal calibration and ASC keep results consistent through temperature swings, and GLP printouts document each calibration.

Formulation, Batching, and Quality Control

Weigh ingredients for cosmetics, coatings, food, and chemical batches, and use percent mode and the comparator to check each one against its target. The RS-232C port sends each weight to a printer, PC, or LIMS.

Parts Counting and Production

Count small parts with 10, 25, 50, or 100 sample pieces down to a 0.01 g unit weight, and ACAI improves accuracy as you add pieces.

Jewelry, Pharmacy Checks, and General Testing

Jewelers weigh larger lots in troy ounces, pennyweight, or carats, and pharmacies and test labs use it for in-house checks and non-trade testing up to 4.1 kg.

A&D GX-4000 Specifications

What’s in the Box

• A&D GX-4000 balance
• 165 × 165 mm stainless steel weighing pan and pan support
• AC adapter
• Instruction manual

The internal calibration weight is built in, so no external weight is needed. The GX-11 glass breeze break, AD-1682 battery unit, and printer are not included.

Compatible Accessories and Upgrades

• A&D AD-1682 rechargeable battery unit (sold separately, not included): runs the balance for up to 8 hours away from an outlet
• A&D TB-648 original AC adapter: a genuine replacement or spare power supply for GX and GF balances
• GX-11 glass breeze break, GX-02 USB interface, GX-12 animal weighing pan, and AD-8121B printer are also available. Call us to order them with your balance.

Related A&D Balances

• A&D GX-4002A Apollo, A&D’s newer 4200 g × 0.01 g model
• A&D GX-4002AN, NTEP legal-for-trade version
• A&D GF-4000, 4100 g × 0.01 g with external calibration
• A&D GX-2000, 2100 g × 0.01 g
• A&D GX-6100, 6100 g × 0.01 g

Calibration for the GX-4000 and GX-4002A

Already own an A&D GX-4000? Our TDA-registered technicians calibrate it in-house, by mail-in or in our Houston-area shop, and include a certificate. Buying the replacement GX-4002A? Add calibration to that order and it ships calibrated:

• In-house calibration with certificate, using NIST-tested weights: $195 (3 to 4 kg balances). We calibrate and verify your balance with NIST-tested weights and include a calibration certificate, so it arrives set up and accurate. Add $195 calibration to cart
• NIST calibration with a NIST-traceable certificate: $495. Full calibration documented on a NIST-traceable certificate, for labs, QC programs, and audits that need a paper trail. Add $495 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 GX / GF series brochure (PDF)
• A&D GX series instruction manual (PDF)

Frequently Asked Questions

Does the A&D GX-4000 have internal calibration?

Yes. A motor-driven internal weight calibrates the balance at the touch of the CAL key, and Automatic Self Calibration runs on its own when the temperature changes. You can still calibrate with an external 4000 g, 3000 g, or 2000 g weight (not included) if your procedures call for it.

What is the difference between the GX-4000 and the GF-4000?

They share the same 4100 g × 0.01 g sensor. The GX-4000 adds internal calibration, a clock and calendar, and larger data memory. The GF-4000 uses external calibration.

What replaced the A&D GX-4000?

The A&D GX-4002A is A&D’s replacement for the GX-4000, with 0.01 g readability and motor-driven internal calibration, plus 4200 g capacity and USB built in. Call us at (832) 290-3120 and we’ll help you move to the new model.

Is the GX-4000 legal for trade?

For selling by weight, choose the NTEP-approved GX-4002AN. The GX-4000 is built for lab, production, and general testing work.

Can MNM Scales calibrate my GX-4000?

Yes. We calibrate GX-4000 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 $195, or NIST calibration with a NIST-traceable certificate for $495.

Can I connect the GX-4000 to a computer?

Yes. RS-232C and A&D’s WinCT software are standard, and the optional GX-02 interface adds USB. The balance can also send GLP reports with the time, date, ID, and calibration data.

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.