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SARTORIUS MC 5 Balance
31
MC 5
Overwriting the Internal Linearity Weight
Caution!
Do not overwrite the internal linearity weight for the sensitivity unless you have done the
following: run the three internal linearization and calibration routines and then take 3 readings
using a Sartorius external test weight (see Calibration Certificate for weights). Calculate the
average for these 3 test readings first, then calculate the allowable deviation range as follows: add
this average to the uncertainty of the test weight ±2 times the standard deviation of the
microbalance ± 4µg. If the average exceeds the allowable deviation, overwrite the linearity weight.
Example: (for a single test point):
- Conventional mass of the test weight listed on the Calibration Certificate: 2g + 0.022mg ±12µg
(±12µg is the uncertainty of the test weight)
- Standard deviation of the microbalance: ±1µg
- Allowable deviation: ±18µg
- The average of the values measured can range from 2.000004g to 2.000040g.
If the average of the values measured is greater, you are allowed to overwrite the internal linearity weight.
In this case, the attainable adjustment accuracy is approx. ± (the worst uncertainty of the weight used
+ 6µg).
Important Note:
If you need to overwrite the internal linearity weight on this microbalance, use only the PSION server or
the CAS program for PCs and laptops.
Procedure for Overwriting the Internal Linearity Weight:
Both the external linearizatio >> L.E. << and calibration >> C.E. << routines must be correctly
carried out before you begin with this procedure.
- Make sure that the menu code >> 1-13-1 << - internal
linearization accessible - has been set on the microbalance
(see page 40 of the „Overview of the Balance Operating Pro-
gram“ for a list of the linearization menu codes).
- If you need to change the code, unlock the menu access switch
located on the rear panel of the microbalance.
- Then turn the microbalance off and back on again using the
key.
- While all segments are displayed (full-segment test), briefly
press the
key.
- >> C.C. << or >> C.L. << now appears above the weight
readout in the upper right-hand corner.
- Press the
key until >> C.L. << is displayed.
- Press
to tare the microbalance first, then press
to
activate the linearization routine for overwriting. >> C << will now
appear.
Summary of Contents for MC 5
Page 1: ...Sartorius Balance Service Manual MC 5...
Page 4: ...4 SARTORIUS MC 5 Balance Stand 1 94 MC 5 Exploded View Diagram 1...
Page 6: ...6 SARTORIUS MC 5 Balance Stand 1 94 MC 5 Exploded View Diagram 2...
Page 8: ...8 SARTORIUS MC 5 Balance Stand 1 94 MC 5 Exploded View Diagram 3...
Page 10: ...10 SARTORIUS MC 5 Balance Stand 1 94 MC 5 Exploded View Diagram 4...
Page 12: ...12 SARTORIUS MC 5 Balance Stand 1 94 MC 5 Exploded View Diagram 5...