The Beckman AU400 Chemistry Analyzer, provided by Beckman Coulter
Equipment Support
Service Options
Consumables
Quality Controls
Service Parts
Package Size: EA
A compact Beckman AU chemistry analyzer for low- to mid-volume labs, rebuilt Down-To-Frame® to original specification and serviced by our own engineers. Finance it with $0 down.
The Beckman Coulter AU400 runs up to 400 photometric tests an hour from an 80-sample rack feeder and 76 refrigerated reagent positions. Add the ISE module and it reaches 800 tests an hour, with sodium, potassium and chloride on board. It runs the same reagents, calibrators and controls as the rest of the Beckman AU family, and every AU400 from Diamond is rebuilt to the frame before it reaches your lab.
The AU400 is a floor-standing, random-access analyzer that reads endpoint, kinetic and fixed-time kinetic assays through permanent quartz cuvettes. Its menu goes past routine chemistry into specific proteins, therapeutic drugs, drugs of abuse, thyroid and urine chemistry.
In a 2000 evaluation of the AU400 published in Clinical Chemistry and Laboratory Medicine, within-run and between-run CVs stayed below 1.5% for the ISE tests and below 3% for most photometric analytes, and linearity exceeded the manufacturer's specifications.
We rebuild the AU400 in four versions. All of them run the same AU reagents and test menu, so your choice comes down to whether you run electrolytes on the analyzer and which generation of hardware and software you want.
AU400. Photometric chemistry at up to 400 tests an hour, for labs that run electrolytes on another analyzer.
AU400 with ISE. Adds the ISE module for sodium, potassium and chloride, for up to 800 tests an hour.
AU400e. The later e-Class version, with upgraded hardware, updated software and a color-keyed interface.
AU400e with ISE. The e-Class version with the ISE module.
Electrolytes on a separate bench. If you want electrolytes off the chemistry analyzer, pair the base AU400 with our own SmartLyte Plus electrolyte analyzer.

| Version | Photometric tests/hour | ISE (Na, K, Cl) | Up to (tests/hour) | Hardware and software |
|---|---|---|---|---|
| AU400 | 400 | No | 400 | Original version |
| AU400 with ISE | 400 | Yes | 800 | Original version |
| AU400e | 400 | No | 400 | e-Class hardware and software, color-keyed interface |
| AU400e with ISE | 400 | Yes | 800 | e-Class hardware and software, color-keyed interface |
The AU400 stands 121 cm (47.6 in) tall on a 145 x 76 cm (57.1 x 29.9 in) footprint, about 11.9 sq ft before service clearance, and weighs about 419 kg (924 lb). Check that your floor and doorways can take that weight and width on delivery day.
| Requirement | Value |
|---|---|
| Dimensions (H x W x D) | 121 x 145 x 76 cm (47.6 x 57.1 x 29.9 in) |
| Footprint | About 11.9 sq ft, before service clearance |
| Weight | 419 kg (924 lb) |
| Power | 220 V |
| Peak power | 3.5 kW |
| Water | Deionized water, plus a drain |
| Host interface | Unidirectional or bidirectional |
Send us your room layout and utilities, and we'll confirm the AU400 fits before you commit.
The AU400 suits labs whose chemistry volume fits within 400 photometric tests an hour and that want a proven analyzer at a low capital cost.
Small hospital and community labs. Run it as your main chemistry analyzer, with STAT positions held for ED and inpatient work.
Labs that run other Beckman AU analyzers. Add it as a backup or STAT analyzer. AU analyzers share reagents, calibrators, controls and consumables, so results and reference ranges line up across your fleet.
Labs replacing a worn-out AU400. Swap in a rebuilt unit and keep your methods, QC program and operator training.
Toxicology and specialty labs. Run drugs of abuse, therapeutic drug monitoring and specific proteins alongside routine chemistry.
Labs with little capital to spend. Get a rebuilt analyzer for a fraction of what a new chemistry analyzer costs, then keep it running on one of our service plans.
Used AU400s come up through brokers, online auctions and lab closures, and many sell as-is, with no warranty and no returns. A listing that says the analyzer worked when it was decommissioned tells you it ran on its last day in someone else's lab. You still don't know the state of its probes, valves, lamp, cuvettes or reagent refrigeration, or whether it will pass calibration in yours.
Every AU400 from Diamond answers those questions before it leaves our facility. It's decontaminated, rebuilt with new wear parts, calibrated and validated with multi-level QC, then installed and verified in your lab by our engineers.
We rebuild your AU400, prove it on QC, install it in your lab and keep it running with our own engineers.

Diamond is FDA-registered, and our US and EU operations hold ISO 9001:2015 and ISO 13485:2016 certification. ISO 13485 is the quality management standard for medical device manufacturers, so your AU400 rebuild follows documented procedures that outside auditors check.
Our engineers install the AU400, program your assays and verify them before you report a patient result. Then they train your operators on site, covering daily operation, adding test parameters, scheduled maintenance and first-line troubleshooting.
We buy the analyzer your AU400 replaces and credit its value against your purchase. We arrange the pickup, pay the freight and handle decommissioning and decontamination, so you avoid disposal fees and the cost of storing an analyzer you no longer use.
Every AU400 we sell is eligible for our field service plans, and so is the AU400 you already own once we qualify it.
Beckman Coulter no longer services the AU400, so the engineers who support it after installation matter as much as the rebuild. Ours service AU400s in the field, and we supply the parts and consumables to keep yours running.
Up to 400 photometric tests an hour. With the ISE module, it runs up to 800 an hour, counting sodium, potassium and chloride.
We price each AU400 individually, based on its year of manufacture, whether it has the ISE module and the services you add. A rebuilt AU400 costs a fraction of a new chemistry analyzer, and you can finance it with $0 down.
A used AU400 usually sells in whatever condition it left the last lab, often with no warranty or returns. A refurbished AU400 from Diamond is rebuilt to the frame with new wear parts, calibrated, validated with multi-level QC, then installed and verified by our engineers and eligible for our field service plans.
The AU400e is the later e-Class version, with upgraded hardware, updated software and a color-keyed interface. Both run the same reagents, calibrators and test menu.
Both run up to 800 tests an hour with ISE. The AU480 is the newer design, with master curve calibration, smaller sample volumes and room to program 63 tests at once. The AU400 costs less and runs the same AU reagents.
Only if you plan to run sodium, potassium and chloride on the AU400. If you run electrolytes on another analyzer, the base AU400 covers your photometric menu.
AU analyzers use the same reagents, calibrators, controls and consumables, so results and reference ranges carry across the family. Our engineers verify your assays at installation.
Yes. It's an open system, so you can set up applications for third-party reagents where your methods allow. Ask us about specific tests on your menu.
A 208 V supply, with peak draw of up to 3.5 kW, plus deionized water and a drain.
Leasing and financing cover purchases up to $2 million, with $0 down and low introductory payments. A credit application alone qualifies you for up to $400,000, and shipping can go into the financed amount.
Yes. We credit its value toward your AU400, arrange the pickup, pay the freight and handle decommissioning and decontamination.
Yes. Our engineers install it, program and verify your assays, and train your operators on site.
Yes, once we qualify it. A qualified AU400 is eligible for the same field service plans as the ones we sell.
No. Our engineers service the AU400, and every unit we sell or qualify is eligible for our field service plans, from fixed-cost preventive maintenance to Platinum coverage with next-day response.


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LAS, through its entity Diamond Diagnostics, is the only USA FDA registered, ISO Certified and Down-To-Frame® refurbisher of Chemistry, Immunology, Hematology, Caogulation and Blood Gas equipment. Inquire today for pricing and Details.
Every analyzer undergoes a systemized, rigorous and unique Down-To-Frame® Refurbishment process to rebuild each analyzer to its original specification and intended use.
89 Total Assays Tested
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| Manufacturer: | Beckman Coulter |
| Series: | AU |
| CLIA Complexity: | Moderate |
| Sample Types: | CSF, Plasma, Urine, Serum |
| Number of Assays: | 89 |
| Maximum Throughput: | 400 tests/hour |
| Sample Size Min: | 2 μL |
| Direct Sample (STAT): | Yes |
| Auto Sample Handling: | Yes |
| Sample Input Type: | Sample Cup Sample Tube |
| Reagent Type: | Liquid |
| Reagent System: | Open |
| Reagent Capacity: | 76 |
| On-Board Refrigeration: | Yes |
| Configuration: | Floor Model |
| Height: | 122 cm (48 in) |
| Width: | 145 cm (57 in) |
| Depth: | 76 cm (30 in) |
| Weight: | 427 kg (939 lb) |
| Water Requirement: | Yes |
| Water OnBoard Supply: | Yes |
| Power Supply: | 220V |
| Point Of Care: | No |
All units sold by LAS or units qualified by LAS are eligible for Field Service coverage. Service plans are the best way to maximize your instrument investment and avoid the high costs associated with instrument failure. Our plans are designed to support optimum instrument performance, ensure reproducible results and minimize down-time. Our service plans provide a timely response from our dedicated engineers who are certified on an ongoing basis to ensure top-notch results, even in the most complex laboratory environments.
: Included
: Chargeable
: None
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For the laboratory looking to manage manufacture recommended preventative maintenance (PM) schedules for instrumentation at a fixed cost. The PM Service Plan will increase the reliability and reduce the risk and costs of unplanned maintenance and equipment downtime. Our plans are scheduled and planned around your specific instrument and operational needs.

For the laboratory looking to maximize the life of their instrumentation while effectively managing repair costs. The Depot Repair is a per diem plan designed for any size instrument needing major repair, complete rebuild or recycling.

For the laboratory looking to maximize the life of their instrumentation while effectively managing repair costs. Annual Depot Repair is an annual based plan designed for small to mid-sized instruments needing maintenance or repairs and can be easily shipped by your local carrier to our Depot Service Facility in Holliston, MA.

For the laboratory employing qualified service professionals, the Virtual Plan may be a suitable choice to replace or supplement Field Services. The Virtual plan offers its customers support by email and telephone, within business hours with communication directly with Clinical Engineering staff specialized in the model of instrumentation that the laboratory is utilizing. The Virtual Plan is annual.
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