The PetriSwiss PS20 Mini is an automatic Petri dish filling system manufactured in Switzerland, designed to streamline laboratory processes. It is capable of handling various tasks such as dish filling, single dosing, stacking, and discharging, improving operational efficiency.

This system can accommodate twenty 90mm dishes, filling them with agar and restacking them in the Petrirack stacker within approximately two minutes. It features an intelligent software interface accessible via touchscreen, simplifying the learning curve for new users.

Conversion from 90mm to 60mm dishes is facilitated by replacing three parts, allowing for flexibility in dish sizes. The PetriSwiss Mini has a filling capacity of around 600 plates per hour, with a cycle time of 1.5 to 2 minutes for 20 plates.

The design of the PetriSwiss PS20 Mini is focused on adaptability and efficient use of laboratory space. Its compact dimensions allow it to fit on standard laboratory benches without consuming excessive space.

Features of the PS20 include:

Straightforward operation and calibration
Ease of maintenance and cleaning
A graphic display providing operational data
Adjustable settings for dosing volumes ranging from 1-99 ml, with speed and pause, and an AntiDrop feature.
Additional options such as an external push-out table and a secondary pump for processing blood agar
A rapid tubing exchange system with a quick load feature

The PetriSwiss PS20 is suitable for use in a variety of environments, including microbiology laboratories, research and development facilities, the pharmaceutical industry, hospitals, the food industry, educational institutions, and for the production of small or specialised batches.

Technical data
Suitable dish diameters	89 - 96 mm
Suitable dish heights	14 -20.5 mm
Dosing quantity	1.0 - 99.9 ml
Dosing accuracy	approx. 2%
Filling cycle delay	0.5 - 9.9 seconds
AntiDrop	0 - 90°
UV lamp	253.7 nm (0.6 Wuvc)
Direct dish throughput	Yes
Display	240 x 128 pixels with LED backlighting
Sound pressure level	<58 dB (A)
Pollution severity	II
Safety Class	IP 21
Ambient temperature	+ 5°C to 45°C (also during transport)
Unit support surface	Sturdy support surface with a load-bearing capacity of at least 50 kg
Voltages
Mains connection	40 VA 85-132 V AC and 176-264 V AC 47-63 Hz
Mains fuse	3.15 A / 250 V AC slow blow
Dimensions
Width (mm)	515
Depth (mm)	400
Height (mm)	615
Net weight (kg)	approx. 20
Performance
Filling capacity	20 dishes in 1.5 - 2 min. (15 ml)
Dish load capacity	1 - 20 dishes per stack
Filling speed plates/h	up to 600