Autosampler OPTIMAS™

Reliable, no-nonsense HPLC autosampler

Optimizing your injection automation, using reliable injection technology, with a carousel holder for sample vial flexibility. OPTIMAS™ features our proven PASA™ injection concept, combining robust injection with high precision and accuracy. With its three injection modes including zero sample loss injection, OPTIMAS™ rivals top-class autosampler performance, while challenging middle-class autosampler prices!


Keypad control for easy combination with any HPLC system

OPTIMAS™ does not need a PC for programming and control because it has its own keypad. No need for a software driver to integrate OPTIMAS™ in your HPLC system – you are free to use the data acquisition package of your choice.

Sample cooling without restricting sample access

OPTIMAS™ can be equipped with sample cooling using a contact cooling concept, which provides efficient cooling without the need for extra insulation of the sample tray. The sample tray thus remains easy accessible, allowing to place extra vials in the tray even during run.

From micro samples to prep samples

Sample trays come in three configurations:

  • 96 # standard or 2-mL vials or tapered vials for micro volumes
  • 84 # standard 2-mL vials plus 3 # 10-mL vials used for reagents
  • 24 # 10-mL vials for large injection volumes
  • Trays can be changed within seconds

Reagent addition and mixing

Internal standard addition, sample dilution, or derivatization steps are easily programmed to reduce sample preparation time and errors associated with manual procedures.

Reassuring reliability

Our Pressure Assisted Sample Aspiration (PASA™) concept avoids sample-syringe contact and air bubbles and has proven its robustness in more than 25.000 autosamplers. Reassuring numbers if you demand a reliable Autosampler for your HPLC instrumentation.

OPTIMAS™Instrument controlSafetyCompliances
Injection modes Full-loop; Partial loop-fill; μL-pick-up Pressure Assisted Sample Aspiration (PASA™) using 0.05 MPa sample headspace pressure to avoid air bubbles in sample lines. No external pressure source required
Sample loop volume 1 μL – 5000 μL; depends on sample loop size and injection mode Programable from 1 μL up to 5000 μL in 1 μL steps
Injection precision Full-loop injection < 0.3 % RSD
Partial loop-fill < 0.5 % RSD
μL -pick-up < 1.0 % RSD
For injection volumes > 10 μL
Replicate Injections max. 9
Syringe volume 250 μL standard
1000 μL and 2500 μL optional
Needle wash Inside needle wash. Wash can be programmed between series, injections and between vials
Injection cycle time 73 sec 10 μL partial loop-fill including 250 μL wash
Valve switching time 60 msec
Wetted parts SS316, PTFE, TEFZEL, PEEK, glass, For Bio-kit option: PEEK and coated-steel (in-and-outside of needle) instead of SS316
Carry-over < 0,05 % with standard wash Typically < 0.01 % with extra wash
Sample capacity STD Tray: 84 # standard 2 mL vials plus three 10 mL vials for mix solvents

LSC tray: 96 # standard vials; see accessories for LSV and LSC tray

LSV tray: 24 # 10 mL vials

Vial height (including cap) max. 47 mm; min. 32 mm
Sample cooling Programmable: 4 – 15 °C
Accuracy: ± 2 °C (at temperature sensor). Cooling capacity: max 20 °C below ambient temperature
Factory installed option (Peltier technology)
Dimensions 300 x 500 x 340 mm (wxdxh) or
11.8 x 19.7 x 13.4 inch (wxdxh)
Weight 15 kg (33 lbs)
18 kg (39 lbs) for OPTIMAS™ cool
Power requirements 115 – 230 V AC +10/ -22 %
50 – 60 Hz
200 VA
Working temperature 10 – 40 °C  Indoor use only
Instrument control
From Keypad – 9 programmable methods (including injection, mix, and time programmable events)
– Analysis time max 10 hr
– Max 14 Mix/dilute steps per method
– Run sequence (vial positions linked to methods)
– Priority sample (interrupt run for priority sample)
Outputs – 2 inject markers – both TTL and contact closure
– Alarm – contact closure
– Stop (TTL)
Alarm is activated on Error Status Message
Inputs – Next injection (TTL)
– Freeze (TTL)
– Stop (TTL)
Alarm output For example used to stop the pump when Error message is generated: – Missing vial sensor – Software malfunction
“Watchdog” function in FPGA for embedded software control
Safety CE, according to IEC-1010
Pollution degree 2
Quality ISO 9001
Part number Short description
0820.000 OPTIMAS™ std.
0820.001 OPTIMAS™ cool
0820.836 prep option incl. sample tray for 10 mL sample vials, 10 mL sample loop and 2.5 mL syringe
0820.832 Bio-Kit incl. PEEK injection valve, 100 μL PEEK sample loop and glass coated sampleneedle
0830.303 Sample needle std.
0830.304 Serum sample needle
0830.318 Glass coated sample needle
0830.711 Serum air needle
0830.718 Air needle std.
0900.710 Buffer tubing 500 μL
0900.711 Buffer tubing 2 mL
0900.712 Waste tubing dispenser → waste
0900.713 Tubing wasch solvent → dispenser
0820.850 Glass bottle holder for 2 bottles of 250 mL each (incl. 2 bottles)
4400.250 Syringe 250 μL with ¼”-28 thread
4400.000 Syringe 1 mL with ¼”-28 thread
4400.255 Syringe 2.5 mL with ¼”-28 thread
0900.742 Teflon piston seals for 250 μL syringe (10 units)
0900.019 Teflon piston seals for 1 mL syringe (10 units)
7739 Rheodyne injection valve 7739
7755-020 5 μL stainless steel sample loop
7755-021 10 μL stainless steel sample loop
7755-022 20 μL stainless steel sample loop
7755-023 50 μL stainless steel sample loop
7755-024 100 μL stainless steel sample loop
7755-025 200 μL stainless steel sample loop
9740 biocompatible Rheodyne injection valve 9740 PEEK/Ceramics PEEK sample loops
9055-024 100 μL PEEK sample loop
9055-025 200 μL PEEK sample loop
9055-026 500 μL PEEK sample loop
9055-027 1 mL PEEK sample loop
7750-016 Vespel rotor seal for Injection valve 7739
7750-038 Stator for 7739 – new
195.038 Stator for 7739 – refurbished
7750-050 Tefzel rotor seal for injection valve 7739
7750-055 PEEK rotor seal for injection valve 7739 and 9740
9750-021 PEEK stator for injection valve 9740

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