Sartorius QTX623IRU-1S Quintix Pro Milligram Precision Balance, 620 g x 0.001 g (Quintix and Secura Replacement)
Original price was: $4,640.00.$3,329.00Current price is: $3,329.00.
The Sartorius QTX623IRU-1S Quintix Pro milligram precision balance weighs up to 620 g with 0.001 g (1 mg) readability. It has a 7-inch full-touch color display, isoCAL automatic internal calibration, real-time level support, 15 applications and USB-C, Ethernet and RS232. It is the current Sartorius replacement for the discontinued Quintix 513-1S, Quintix 613-1S, Secura 513-1S and Secura 613-1S.
- Capacity 620 g, readability 0.001 g (1 mg)
- Repeatability ± 1 mg, linearity ± 2 mg
- Stabilization ≤1.0 s
- ⌀ 120 mm stainless steel pan inside a glass draft shield
- isoCAL automatic internal calibration
- 3 × USB-C, Ethernet and RS232
- Replaces the Quintix 513-1S, Quintix 613-1S, Secura 513-1S and Secura 613-1S
Add calibration with certificate:
Add In-House Calibration + Certificate ($95) Add NIST Calibration + Certificate ($395)
Description
Sartorius QTX623IRU-1S Quintix Pro Milligram Precision Balance, 620 g × 0.001 g
The Sartorius QTX623IRU-1S is a 620 g × 0.001 g milligram precision balance from the Quintix Pro line, Sartorius’s “true universal balance” for labs, QC and production. It pairs German weighing technology with a large 7-inch touch display, fully automatic isoCAL internal calibration and real-time level support, so every result is traceable and every user sees the same simple workflow.
Replaces the Sartorius Quintix 513-1S, Quintix 613-1S, Secura 513-1S and Secura 613-1S
Sartorius has discontinued the Quintix and Secura lab balances and replaced them with Quintix Pro. With a 620 g capacity and 0.001 g readability, the QTX623IRU-1S is the Quintix Pro model we recommend if you are replacing a Quintix 513-1S or Quintix 613-1S or Secura 513-1S or Secura 613-1S. It adds the 7-inch touch display, USB-C and Ethernet connectivity, user management and cleanroom-tested materials.
QTX623IRU-1S Key Features
- Large 7-inch, high-resolution full-touch color display with an upgraded user interface
- isoCAL fully automatic internal calibration with a built-in weight
- Real-time level support (LevelControl) that guides you to a level balance
- 15 built-in applications, including counting, percent weighing, density, checkweighing, mixing, statistics and pipette testing
- Three USB-C ports (2 rear, 1 front), Ethernet and RS232 for printers, PCs, USB sticks and databases
- GLP/GMP-compliant printouts and user management with passcode-protected access levels
- Semi-automatic filter adaptation (AFA) to tune the balance to your application
- Tested for cleanrooms grade A and B; chemically resistant PBT, glass and stainless steel surfaces
- Energy-saving standby, auto-dim and a user-defined start timer
- Built-in digital manual and 15 languages
QTX623IRU-1S Specifications
| Brand | Sartorius |
|---|---|
| Series | Quintix Pro |
| Model | QTX623IRU-1S |
| Capacity | 620 g |
| Readability | 0.001 g (1 mg) |
| Repeatability | ± 1 mg |
| Linearity | ± 2 mg |
| Typical stabilization time | ≤1.0 s |
| Weighing pan | ⌀ 120 mm |
| Weighing chamber height | 240 mm |
| Draft shield | Glass, manual doors |
| Calibration | Internal, automatic (isoCAL) |
| Leveling | Real-time level support (guided) |
| Display | 7-inch high-resolution full-touch color display |
| Interfaces | 2 × USB-C (rear), 1 × USB-C (front), Ethernet, RS232 |
| Dimensions (W × D × H) | 220 × 377 × 346 mm |
| Operating temperature | +10 to +30 °C |
| Power | 100 to 240 V AC, 50/60 Hz |
| Replaces | Sartorius QUINTIX513-1S, Sartorius QUINTIX613-1S, Sartorius SECURA513-1S, Sartorius SECURA613-1S |
| Condition | New |
Where the QTX623IRU-1S Is Used
- Pharmaceutical, chemical and university laboratories
- Quality control and incoming inspection under GLP/GMP
- Sample prep, formulation and recipe weighing
- Density determination and pipette checks
- Cleanroom and controlled-environment weighing
Calibration for the QTX623IRU-1S
Get your QTX623IRU-1S calibrated and ready to use on day one. Add either option to your order, and our TDA-licensed technicians calibrate it in-house before it ships:
- In-house calibration with certificate, using NIST-tested weights: $95. Add $95 calibration to cart
- NIST calibration with a NIST-traceable certificate: $395. For labs, 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 or call (832) 290-3120.
Manufacturer Information
See the Sartorius Quintix Pro product page for data sheets and manuals. Browse more Sartorius balances at MNM Scales.
Frequently Asked Questions
What does the Sartorius QTX623IRU-1S replace?
It is the Quintix Pro replacement for the discontinued Quintix 513-1S, Quintix 613-1S, Secura 513-1S and Secura 613-1S, with a 620 g capacity and 0.001 g readability.
Does the QTX623IRU-1S have internal calibration?
Yes. isoCAL calibrates it automatically with a built-in weight when the temperature changes or a set time passes.
What does “IRU” mean in QTX623IRU-1S?
IR models have internal calibration and guided, real-time level support. IM models add motorized automatic leveling feet.
Is the QTX623IRU-1S legal for trade?
No. This is the non-verified standard version, intended for laboratory and industrial use, not for buying or selling by weight.
Can it connect to a computer or LIMS?
Yes. It has three USB-C ports, Ethernet and RS232, and prints GLP/GMP-compliant reports.
Why Buy Your Sartorius Balance from MNM Scales?
MNM Scales is an authorized Sartorius 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.







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