Scientech 10K Series - Manual (Page 5)

Connect to an Electrical Outlet:
The balance is supplied with a 115/220, 50/60 Hz automatic switching, remote power supply. This power supply will work with most
electrical outlets, however, before making any connections, verify that the power (VAC) requirement shown on the remote power
supply is compatible with the AC power outlet to which the balance will be connected.
Note: First plug the round DIN connector into the balance’s rear panel receptacle. Then, plug the power supply into a
grounded AC outlet.
Note: Do not alter or bypass the ground plug in any way. Doing so adversely affects the performance of the balance.
Turn the balance on:
Press the ON/OFF button one time to turn the balance on and observe the following turn on sequence.
Figure 4 Turn On sequence
Allow the balance to warm up for at least 1 hour, then follow the Autocalibration instructions to calibrate the balance.
Good Measurement Practices:
(As quoted from the Mass Standards Handbook by Troemner, 3-015BKT rev 1/03)
There are numerous steps that one can take in order to improve the quality of a mass measurement system. However, they usually fall
within three main categories: the equipment, the environment, and the operator. If even one of these areas is neglected, it can have a
dramatic negative impact on your results. Although these suggestions are not meant to be all encompassing or all-inclusive, the
improvements that can be made following these simple guidelines are extraordinary.
Equipment:
1. Select weights that have a tolerance that is one third or better than the accuracy you require for your application. This way
the error of the weight will not dramatically impact the quality of your measurements.
2. The equipment must be of sufficient readability to calibrate or measure the weight or sample under test.
3. The balance should be placed on a stable platform free from the effects of vibration. The most common type of setup
involves placing the instrument onto a balance table that is constructed of marble or granite.
4. Never use a balance or scale as soon as it is turned on (plugged in). The internal electronic components need to stabilize and
“warm up” for at least 24 hours once the equipment has been energized. Troemner recommends that you leave this
instrument plugged in twenty four hours a day, seven days a week.
5. Never use a balance that has been idle for several hours without first "exercising it" and calibrating it. A balance is exercised
by repeatedly placing and removing weights from the balance pan. We recommend that this be done at least ten times each
with a weight that is 100% of the max capacity of the balance. After exercising, the balance should be calibrated. If these
two techniques are consistently employed, a noticeable improvement will result in both linearity and stability of the
measurement.
6. When weights are not in use, store them in the case in which they were supplied. If the weights were not supplied with a
case, either purchase a case or use a clean container to protect the surfaces. This will keep airborne particles from getting on
your weights between uses. Weights should be in thermal equilibrium with the balance so store weights near your balance.
Another option is to leave calibration masses commonly used inside the weighing chamber when not in use. This assures
your weights are in thermal equilibrium with the balance producing a better measurement.
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