
Hanna Instruments-921-130 Autosampler with 16 beaker tray, 3 peristaltic pumps
The Hanna Instruments-921 Autosampler is an automated titration sample handling system designed for use with the Hanna Instruments-902C Potentiometric Titration System. This high quality system makes the titration of multiple samples quick and easy.
Autosampler with 16 beaker tray, 3 peristaltic pumps
Using the autosampler, up to 18 samples can be run consecutively. The Hanna Instruments-921 autosampler also interfaces directly with the Hanna Instruments-902C to access titration methods. Once a method is established, the user can customise the automation sequence samples for the method. Sample names and size can be customised or auto filled in with preset values.
- Use up to three peristaltic pumps for reagents addition, sample levelling, and waste aspiration
- Control panel allows for manual operation of the motors and pumps
- Features sample levelling, built-in magnetic stirrer, reagent addition, electrode rinse feature
- USB interface with compatible barcode reader and built-in RFID for each tray
Once the autosampler sequence is complete, two reports are available for review:
- Sequence report with a table outlining each sample name, beaker position, sample size, and result for the tray
- Detailed titration report for each individual sample, including the graph of the titration data
More benefits:
- Flexible, accurate detection of the titration endpoint with Hanna Instruments-902C potentiometric titrator
- Automation of up to 18 samples per tray – 16 sample tray holds 150ml beakers; 18 sample tray holds 100ml beakers
- Absolute encoder in sample tray – The autosampler always knows the tray position. It never needs calibration and never needs to “home”
- Electrode rinse feature – up to 3 beakers per tray can be designated for electrode dip rinses; a primary, secondary and tertiary rinse.
- Automatic addition of reagents or deionised water to the sample beaker by peristaltic pump
- Control panel for manual operation of motors and pumps (included)
- Built-in magnetic stirrer or optional overhead propeller stirrer
- Barcode reader interface for easy sample tracking – USB barcode reader interface for easy sample identification
- Built-in RFID in each tray, communicating tray serial number and number of beakers it holds
- Optical IR beam detects presence or absence of beakers in the tray – ensures the autosampler doesn’t proceed with titration if a beaker is missing
- USB interface – use with barcode reader; field upgradable software
- Sample trays made of chemically-resistant materials are removable, easy to clean and dishwasher safe
- Electrode holder can accommodate 3 x 12mm electrodes, temperature sensor, 1 aspiration tube, and 5 multipurpose tubes (reagent addition, burette dosing) – Allows user to switch between methods without physically switching electrodes
- Real time progress of the sequence and results shown on the Hanna Instruments-902 titrator screen
- Integrated peristaltic (up to 3) pump
- Sample levelling feature – automatic levelling for fast preparation of volumetric samples
- Waste removal feature – Aspirate completed samples into a waste container
The Autosampler can include up to three peristaltic pumps. The pump system has a simple install process and can be connected without the need of a technician.
- Up to 3 peristaltic pumps can be added at any time
- User replaceable pump systems
- Peristaltic – uses high performance plastic engineering to be chemically resistant, with long service life. Resistant to temperature fluctuations; Reagent addition, sample levelling, waste removal; greater than 200 mL/min flow.

Frequently Asked Questions
Clear answers to help you choose the right water testing solution with confidence
Which brands of water testing kits do you supply?
Do you provide kits for both home and professional use?
Yes — whether you’re a pool or spa owner, aquarium keeper, utility company, or a university laboratory, we have the right solution for your needs.
Can I arrange servicing or calibration for my photometer?
Absolutely. We also provide servicing and calibration to keep your photometers accurate and reliable.
How quickly do you dispatch orders?
Orders placed before 2:30 pm (Monday–Friday) are dispatched the same day. We also ship on Saturdays for your convenience.
Which couriers do you use for delivery?
We deliver through UPS, DPD, and Royal Mail. You can also choose to upgrade to next-day delivery at checkout.
What is your return policy?
We accept returns within 14 days of delivery provided the items are unused, in their original packaging, and in resalable condition. Please contact our team before returning any items.
Can I place bulk or business orders?
Yes, we welcome bulk, trade, and institutional orders. For tailored pricing or large quantities, please get in touch with us directly.
How can I get help if I’m unsure which kit to buy?
You can call us at 📞 +44 (0)115888 2726 and our team will guide you in choosing the most suitable kit for your needs.