XP2U梅特勒XP2U微量天平
The METTLER TOLEDO XP2U is an innovative ultra-microbalance, providing optimal weighing performance, user friendliness and quality standards. The XP2U ultra-microbalance has a very high resolution: 21 million digits. A brilliant colored touch screen display, customized screen programming, inligent user guidance, and hands-free infrared draft shield control make this highly-precise balance faster, easier and more efficient than ever before.
METTLER TOLEDO XP6 microbalance and XP2U / XP6U ultra microbalance are designed to boost efficiency, reliability and supports network compatibility.
規格 - XP2U Ultra-microbalance
| 物料號 （s） | 11122430 |
| 商業名稱 | 11122430 |
| Nominal and guaranteed values | XP2U |
| Maximum capacity | 2.1 g |
| Readability | 0.0001 mg |
| Repeatability - at nominal load | 0.00025 mg |
| - at low load （measured at） | 0.0002 mg （0.2 g） |
| Linearity | 0.001 mg |
| Eccentric load deviation （test load）1） | 0.0025 mg （1 g） |
| Sensitivity offset | 1.5 x 10-5 |
| Sensitivity temperature drift2） | 0.0001 %/°C |
| Sensitivity stability3） | 0.0001 %/a |
| Techical data - typical values4） | |
| Repeatability （sd） | 0.00015 mg+2.5 x （10–8）· R_gr |
| Differential linearity deviation （sd） | √8x（10-14） · g · R_nt |
| Differential eccentric load deviation （sd） | 8 x （10–7） . R_nt |
| Sensitivity offset （sd）2） | 3x（10-6）· R_nt |
| Minimum weight （according to USP） | 0.45 mg+7.5 x （10–5） · R_gr |
| Minimum weight （@ U=1 %, 2 sd） | 0.03 mg+5 x （10–6） · R_gr |
| Settling time | < 10 s |
1）According to OIML R76
2）In the temperature range 10…30°C
3）Stability of sensitivity as from first installation with FACT
4）Can be used for the estimation of uncertainty sd: standard deviation Rgr: gross weight Rnt: net weight （sample weight） a: year （annum）
Repeatability and minimum weight can be improved and affected by the following measures: - choice of suitable weighing parameters, - moving to better location, - using smaller tare containers
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