Mettler Toledo PR/SR Operations Instructions Page 44

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PR/SR balances
5.3 Totalization – " Tot "
If you wish to sum the weight values of your samples to a total weight, this is the right application for you.
Use the menu (section 6.1) to select whether you should remove each sample from the weighing pan after weighing (parameter
"Mode" to "Single") or whether you should place all the samples in succession on the pan without removing any ("Mode" to
"Additive"). In addition, you have the possibility to transfer the weight value for calculation of the total at a keystroke (parameter
"WeightEntry" to "Manual") or automatically ("WeightEntry" to "Auto").
You can thus optimally match the application to meet your needs.
In totalization you have the following functions and information available in the
bottom line of the display:
"M+" transfers the weighed value to the totalization memory
"n=..." item counter with number of the totalized weight values, also used to
preset the number of items
"Σ=..." current total of the weight values, prints out the results
"M-" removes the last transferred value from the totalization memory
(correction key)
"Clear" sets the item counter and totalization memory to zero, ends the
weighing series
extended basic functions (see section 4) if activated in the menu
For the weight transfer, the balance must be able to stabilize itself and the load change must attain the
minimum value, which you can enter under this application in the menu by "WeightEntry -> MinChange".
If the weight change is too small, the message "MinChng - Err" appears.
You can use "M+" to transfer negative weight values which are displayed when the samples are removed
from a full, tared container or weight values less than 30 display increments.
If you are working with the extended basic function "Sample identification" (section 4.3), you are
automatically prompted for its entry with "SID=…" before every weight transfer.
Requirement
The application "Tot" must be selected under "APPL" in the menu and the weighing procedure ("Mode") as well as the type of
weight transfer ("WeightEntry") specified (see section 6.1).
Applications – Totalization
M+ n=100 =4567.89g M-
0.00 g-
AutoCal BPTGNet
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