E1 Mass

Mass standards - class E1 Adjustment, testing, official calibration and calibration instrument for the quality assurance of scales with more than 1,000,000 steps in accordance with DIN EN ISO 9001ff etc. For the calibration and official calibration of weights of class E2 in accordance with OIML R111 and E08. For high precision weighing or comparative measurements on measurement comparators.

  • Specifications
  • Accessories
  • Download



1. Cursory testing

You can make most of the test measurements for the weighing range with just one test weight (nominal value). The nominal value of the external calibration weight is often used for this purpose (consult the user guide or operating software of your balance). This nominal value should always be greater than 80% of the maximum rated capacity.


2. Complete testing

Use this method to check the weighing range (measuring range) against the maximum potential requirements. The following four test loads are required: 25%, 50%, 75% and 100% (or at least 80%) of the maximum rated capacity. The test weight for 100% (or at least 80%) of the maximum rated capacity should consist of just one weight, rather than a combination of several test weights.





1. Determine the number of intervals n by dividing the maximum weight by the scale division d (smallest reading digit) of the weighing range (measuring range). Number of steps n = Max. load capacity Scale interval d


2. Determine the tolerance class of the test weights from the required tolerance

Compact Printer RS 25

USB-P25, RS-P25, RS-P26, RS-P28 Compact Printer Range No matter which METTLER TOLEDO instrument is connected, you will always obtain a printout that meets the quality standards. Handwritten entries in laboratory journal notebooks are time consuming and can be a source of transcription errors. Records on the METTLER TOLEDO normal and adhesive printer paper help to avoid such mistakes. The printouts can be archived and at any time provide proof of the original weighing data Fast and reliable Whether you deal with simple or sophisticated applications, the printer generates fast and clear hard copies of your results Print in your language The Compact Printer supports the connected instrument languages, whether it operates in English, Russian, Chinese (balance), and Japanese or in any other language. Choose the right model Choose RS-P25 / USB-P25 for simple printouts, RS-P26 with built in real- time clock and date or RS-P28 with the extended Statistics and Totaling applications Auto settings detection The Printer automatically detects the settings of the connected device. Thanks to this feature no manual setting changes are required.

Compact Printer RS 26

Compact Printer RS 28

Auxiliary Display