24 SARTORIUS MC 5 Balance Stand 1/94
MC 5
Reproducibility
Checking the Reproducibility:
- Before you check the reproducibility, be sure to observe the
following:
a. The conditions specified on page 22 of this Service Manual must
be met.
b. Make sure that code >> 1-6-1 << for Auto Zero has been set (for
instructions, see the section entitled „Accessing the Balance
Operating Menu and Setting Menu Codes“ on page 19 of this
manual).
To check the reproducibility, change the load on the pan 10 times using a 5g weight as described in the
following:
- Use the long anti-magnetic forceps.
- Unload the weighing pan. Close the draft shield by pressing
. After approx. 10 sec., 0.000mg will be displayed.
- Load 5g weight. Close the draft shield; once the readout has
stabilized, write it down.
- Remove the weight. Close the draft shield; once the readout
has stabilized, write it down.
- Repeat this test 10 times.
You can connect a printer, model YDP 02, to the microbalance in order to print out the values displayed
instead of writing them down.
If the standard deviation is >= 1 , you have to check and clean the weighing cell.
If the reproducibility error cannot be eliminated by cleaning the weighing cell, the weighing system is
defective, and the microbalance must be returned to the factory in Goettingen, Germany.