Customer Care

Accuracy
HTL Pipettes are renowned for their outstanding accuracy and precision rates. What characterizes our equipment is the fact that it not only performs great when it’s brand new, but it also maintains its superbly reproducible performance after years of usage*. This important advantage is the result of both stringent quality control procedures applied by our QC Department and manufacturing know how gained by us within more than 20 years of pipette manufacturing. From the very initial stages of the designing process, HTL pipettes are crafted to meet the requirement of long lasting reproducibility.

The following features of our pipettes allow us to attain this goal:

• Ultra smooth pistons
• Balanced operation forces
• Low thermal conductivity
• Unique multichannel manifold

* certain maintenance rules, described in pipette manual should be obeyed to ensure its best, long lasting performance

Ultra smooth pistons

– the properties of raw materials applied for the construction of HTL pistons combined with the unique technology of piston polishing result in extraordinary smoothness of this vital component. The smoother the move of the piston, the more repeatable its shape, the more accurate aspiration of the pipette is.

Balanced operation forces
– in order to ensure the repeatability of the measurement, it is essential to keep the right proportion between the pipetting force, the blowout stop and the blowout force. On one hand it is essential to keep the operation forces at the lowest possible rate, on the other hoverer it is crucial to let the user feel the right moment when he should stop pressing the pushbutton down, before blowout. The tension of the pipetting and blowout springs applied in newest HTL pipettes is the result of decades of experience. Careful selection of the spring material and their shape allowed us to combine these two necessities in our LABMATE Soft, CLINIPET⁺ and DISCOVERY Comfort pipettes. The new construction of the plunger assays applied in above pipettes allows for pipetting with unnoticeable effort, but to feel clear stop between pipetting and blowout at the same time. Thanks to this design the precision of work is easily obtained even by less experienced pipette operators.

Low thermal conductivity
– extensive work with some pipettes may result in warming them up from the warmth the hand of the operator. The increase of pipette temperature could cause an accuracy error due to expansion of the air drawing the liquid into the tip. Ultimately the warmer the air, the more expanded the air, the less liquid is aspirated and the larger the error.
HTL pipettes resist this negative factor due to the low thermal conductivity of their handles. The material of our pipette components coming in touch with operators’ palms do not worm up as fast as the plastic applied by most of other pipette manufacturers.

Unique multichannel manifolds
In the newest design of HTL multi channel pipette, the DISCOVERY Comfort multichannel, our engineers made sure that the fact of possessing 8 or 12 shafts does not affect the reproducibility of the pipette. The revolutionary solutions applied in DISCOVERY Comfort multichannels, ensuring identical aspiration in all multichannel shafts are the alignment of the pistons and the retrievable shaft system.
The alignment system guarantees that the plungers in all shafts move with the same paste regardless of the operator’s technique, while the retrievable shafts ensure that all tips are sealed securely without the risk of poor air tightness on the middle shafts.

                                                        Unique, patented multichannel manifold >>