Descrizione
XA11 – Adapter for Pipettes calibration 11 ml for XA.4Y.M; XA.4Y.M.A.I Stazioni
XA11 pipette calibration adapter enables calibration and/or verification of piston pipettes by means of a gravimetric method using the XA microbalance.
Set content:
Set content:
- base
- weighing pan
- weighing vessel
- evaporation ring
- glass chamber with an opening for dosing
Evaporation ring is an integral part of the adapter that increases relative humidity inside the weighing chamber. With this evaporation of the liquid during calibration/verification is stopped.
An integrated weighing pan enables centric loading of the vessel in the weighing chamber. The weighing pan and the vessel are housed in a glass chamber featuring an opening allowing the user to dispense liquid through it, and reducing air drafts.
Vessel capacity: 11 ml
An integrated weighing pan enables centric loading of the vessel in the weighing chamber. The weighing pan and the vessel are housed in a glass chamber featuring an opening allowing the user to dispense liquid through it, and reducing air drafts.
Vessel capacity: 11 ml
Adapters for pipettes calibration
Pipette calibration adapters are intended for calibration and verification of piston pipettes using gravimetric method. Use of the pipette calibration adapter reduces maximum capacity of the balance by the mass of the weighing vessel. The table presents the minimum reguirements in accordance with ISO 8655 standard. It also enables to select suitable adapter for pipette calibration and respective balance version.
|
Selected volume1 of apparatus under test V |
Resolution mg |
Repeatability and linearity mg |
Recommended balance | |||
| 1 µl = V = 10 µl | 0.001 | 0.002 | MYA 21.5Y |
XA 6/21.5Y.M.A XA 6/21.5Y.M |
||
| 10 µl < V = 100 µl | 0.01 | 0.02 |
XA 82/220.5Y.A XA 82/220.5Y |
XA 120/250.5Y.A XA 120/250.5Y |
||
| 100 µl < V = 1000 µl | 0.1 | 0.2 | ||||
| 1 ml < V = 10 ml | 0.1 | 0.2 | ||||
| Adapter for pipette calibration | MY 11 | XA 11 | XA 17 | XA 100 | XA 17 | XA 100 |
| Maximum vessel capacity | 11 ml | 11 ml | 17 ml | 100 ml | 17 ml | 100 ml |
| Weighing vessel mass | ~10 g | ~10 g | ~11 g | ~65 g | ~11 g | ~65 g |
1 For practical purposes, the nominal volume may be used to choose the balance. [Reference: ISO8655-6:2002, pg. 2]
If the standard uncertainty of measurement of the balance is known (e.g. from the balance calibration certificate), it may be used instead of the repeatability and linearity. The standard uncertainty of measurement shall not be more than two to three times the resolution. [Reference: ISO8655-6:2002, pg. 2]
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