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SARTORIUS MC 5 Balance
Stand 1/94
MC 5
- The internal linearity weights are now loaded and unloaded in
sequence by the servomotor. In the process, the weight value is
stored in the EEPROM of the microbalance processor.
Afterwards, the microbalance returns to the standard weighing
mode.
- At the end of the linearization routine, reset the menu code to
>> 1-13-2 << and lock the menu access switch.
Overwriting the Internal Calibration Weight
Caution!
Do not overwrite the internal calibration weight unless you have done the following: run the
internal linearization and calibration routines and then take 10 readings using a Sartorius external
test weight (see Calibration Certificate for weights). Calculate the average for these 10 test
readings first, then calculate the allowable deviation range as follows: add this average to the
uncertainty of the test weight ± the standard deviation of the microbalance ± 4µg. If the average
exceeds the allowable deviation, overwrite the internal calibration weight.
Example:
- Conventional mass of the test weight listed on the Calibration Certificate: 5g + 0.022mg
±15µg (±15µg is the uncertainty of the test weight)
- Standard deviation of the microbalance: ±1µg
- Allowable deviation: ±20µg
- The average of the values measured can range from 5.000002g to 5.000042g.
If the average of the values measured is greater, you are allowed to overwrite the internal calibration
weight.
In this case, the attainable calibration accuracy is approx. ± (the worst uncertainty of the weight used
+ 6 µg).
Important Note:
If you need to overwrite the internal calibration weight on this microbalance, use only the PSION server or
the CAS program for PCs and laptops.
Procedure for Overwriting the Internal Calibration Weight:
Important note: The microbalance must be accurately calibrated using a external >> E1 << weight set
or, better yet, using the PSION server before you begin with this procedure.
- Make sure that the menu code >> 1-10-1 << - internal calibration
accessible - has been set on the microbalance (see page 40 of
the "Overview of the Balance Operating Program“).
- If you need to change the code, unlock the menu access switch.
It is accessible when you remove the cap next to the AC jack on
the rear panel of the microbalance.
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...