Complete Automation for YOUR Titration

Applications and Direct Measurements

SAC850 and SAC950 Sample Changers

- when you need to be sure…

The obvious choice for your laboratoryRadiometer Analytical sample changers are capable of handling multiple combinations of titrations, direct pH, ion and conductivity measurements fast and efficiently. Connect to a TitraLab® titration workstation or a direct measurement meter with or without PC software selected from our complete laboratory product range and your laboratory will virtually run itself!

Compact and AdaptableThe SAC850 and SAC950 are compatible with a wide selection of removable sample trays, making them remarkably space-efficient. No special beakers are required; they accept standard glass and disposable beakers with volumes ranging from 25 to 400 ml.

There is no need to programme the sample changer each time a new type of sample tray is used as it is instantly identified by a wireless RFID tag containing all relevant geometrical characteristics. High rotation speed and smooth turntable movements allow fast and safe navigation between samples.

Flexible and ProgrammableSample preparation sequences can be programmed from TitraMaster 85 Titration PC Software with specific macro commands to fit your require-ments. User-defined sample preparation sequences offer all the benefits of full automation. You can activate the Start/Stop stirring function or the pumps for a chosen duration, wait or send a TTL command to/from an external device and wait for a specified temperature to be reached.

Quick and EfficientThe powerful Dynamic Spray Rinse feature and high flow-rate pumps ensure quick and thorough cleaning with no risk of cross contamination between samples, helping you achieve greater accuracy and reproduc-ibility, irrespective of the number of samples per cycle. Efficient rinsing is obtained thanks to repeated vertical movements of the head combined with the mechanical action of the sprays.

Rinsing liquid is sprayed from all directions over the entire height of the electrodes and tips while the waste pump empties beakers and evacuates rinse waste. This dynamic rinsing performed directly over the analysed beaker reduces the total duration of the sample changer cycle multiplying the number of samples analysed per day.

Safe and Clean Our unique bayonet concept keeps electrodes and delivery tips securely in place. This ensures reproducible results and allows you to use any combination of electrodes, conductivity cells, temperature sensors or delivery tubes for your analyses. Tubes and cables can be inserted or removed in no time and are held in position in a cable carrier for maxi-mum convenience. Reagent addition tubes are permanently visible for inspection.

The SAC950 includes 3 external beaker positions (2 for dip rinsing/con-ditioning and 1 for parking) allowing you to exploit the full beaker capac-ity of the tray and increase the number of samples analysed per cycle.

SAC850 and SAC950 Sample ChangersEffortless sample handling…

The powerful propeller stirrer ensures perfect homo-geneity of all kinds of sample and enhances result reproducibility.

Sample changer status is visible from a distance thanks to a coloured LED: analysis cycle in progress (violet), ready for new analysis cycle (blue), operating error (red).

An embedded keypad ensures quick and easy manual control of movements and pump operation.

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SAC950

The convenient cable carrier ensures tubes and cables slot easily into place for faster setup.

An innovative ultrasonic transducer guarantees both beaker detection in under a second and safer opera-tion by eliminating any risk of reagent spillages.

The beaker cover option avoids any risk of interaction between the samples and the environment prior to analysis.

Reagent addition via the built-in peristaltic pump minimises sample preparation time, simplifies the operator’s task and increases sample throughput.

Automatic beaker emptying after analysis disposes of waste reagents and rinsing liquid making the tray lighter and easier to remove.

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SAC950: Extended model for automation of large sample series

Multi-radius sample trays for up to 70 samples.

External parking position.

External dip rinsing and electrode conditioning on 1 or 2 positions.

- Dynamic rinsing combined with waste disposal performed inside the current sample beaker, the external park beaker or one of the 2 external dip rinse beakers.

Beaker cover module for sample protection prior to analysis (optional).

…through total automation

Functions SAC950 SAC850

Propeller stirrer 0 - 1200 rpm ” ”

Magnetic stirring (single-radius only) 0 - 1000 rpm ” ”

Beaker detection ” ”

Embedded programmable sample preparation sequences ” ”

2 dip rinsing/conditioning + 1 parking positions, external ” -

2 dip rinsing/conditioning + 1 parking positions, on sample tray - ”

Unused electrode and tip storage, 4 positions ” ”

Integrated keyboard for manual sample changer control ” ”

Dynamic rinse/waste disposal pumps, 1 module O O

Reagent addition peristaltic pump, 1 module O O

Beaker cover module (sample protection prior to analysis) O -

” : StandardO : Optional - : Not available

SAC850: Basic model for automation of small sample series

Single-radius sample trays for up to 24 samples.

Parking position on sample tray.

Dip rinsing/electrode conditioning performed on 1 or 2 dedicated positions on sam-ple tray.

- Dynamic rinsing combined with waste disposal performed inside current sample beaker.

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Technical specifications

SAC850

SAC950

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Trays

Sample tray capacity SAC850

Single-radius

Sample tray capacity SAC950

Multi-radius

Glass beakers* Polypropylene beakers

Capacity Ø x H (mm) Capacity Ø x H (mm)

24 samples + 1 park 70 samples + 2 rinse + 1 park 50 ml low form 42 x 60 22-45 ml & 8-25 ml 44 x 70

21 samples + 1 park 42 samples + 2 rinse + 1 park 100 ml tall form 48 x 80 - -

19 samples + 1 park 36 samples + 2 rinse + 1 park - - 40-100 ml 60 x 80

17 samples + 1 park 30 samples + 2 rinse + 1 park 150 ml low form 60 x 80 - -

19 samples + 1 park 36 samples + 2 rinse + 1 park - - GOSSELIN 180 ml 54 x 72/102

17 samples + 1 park 30 samples + 2 rinse + 1 park 250 ml tall form 60 x 120 - -

14 samples + 1 park 25 samples + 2 rinse + 1 park 250 ml low form 70 x 95 - -

14 samples + 1 park 25 samples + 2 rinse + 1 park 400 ml tall form 70 x 130 - -

*Standard glass beakers specifi ed in accordance with DIN 12331 & ISO 3819.

Pump characteristics

Function Pump type Flow rate Accuracy Pump model/Material

Dynamic spray rinseMembrane 600 ml/min max.

~10% Pump head: PPMembrane: PTFE

Valve: FFPM (Kalrez®)Empty beaker ~10%

Reagent addition Peristaltic200-400 rpm

2.0 to 236 ml/min max.~1% Tubing: Maprene®

General specifi cations

Ambient temperature 5 to 40°C

Relative humidity 20 to 80%

Altitude < 2000 m

Casing materials PETP – PVC/PE - Fully splashproof chemical resistant – For use in a laboratory environment

Level of pollution 2

Power supply 100 - 240 Vac / 50 - 60 Hz / 76 VA

Transitory over voltage Level II

Dimensions H x W x D (cm) 70 x 58 x 68

Weight (kg) 27

Required operating area (cm) 60 x 80

Compliance - CE, R&TTE Directive (99/5/EEC), EMC Directive (2004/108/EEC), LV Directive (2006/95/EEC)- cETLus certifi cation, UL 61010A-1 and CAN/CSA C22 2 n°1010.1-92- FCC part 15 rules

Inputs/outputs

Connector type Connector description

USB-B (Slave) PC connection

Sub-D9 RS232C Connection to titration workstation or direct measurement meter

RJ11 0-5 V TTL input/output commands

RJ11 Beaker cover module

RJ11 Propeller stirrer

Cinch Temperature input (for use in sample preparation sequence only)

Jack, 3.5 mm Ultrasonic transducer for beaker detection

Ordering information

The SAC850,Ba or SAC950,Ba Sample Changers are delivered with a full set of connecting cables and setup accessories but no sample tray.SACx50,Ba versions operate with a selection of xx-position sample tray kits complete with accessories and delivery tubing to be ordered separately.

Data subject to change without notice.