Super Systems SDS 8120 - Manual (Page 11)

Super Systems Inc. Page 11 of 104
Color Touch Screen Data Logger Operations Manual
board must have a common ground reference. If multiple thermocouples are connected to
different ground reference points, the accuracy of all thermocouples on the board cannot be
guaranteed to be accurate.
Voltage connections
Voltages from 0 mV to 1.28 Volts can be directly connected to the terminal blocks. When
measuring ground-referenced voltages, all references must share a common ground
reference. If the voltage sources are connected to different ground reference points, the
accuracy of all the voltage sources connected to the board need to be checked for accuracy.
4 – 20 mA Current Loop connections
Before connecting the current loop, insert the shorting jumper on the board for each channel
used to measure current loops. This jumper inserts the 62-ohm shunt resistor across the input
of the A/D. If multiple current loops are connected to one board, all must share the same power
supply and ground reference points or the accuracy of all the current loops need to be checked
for accuracy.
Survey Templates
The data logger will default to the last survey template used. To modify the template being
used, the operator can go to the Survey menu option. This data will be carried over for the
reporting process to make the reporting quick and easy. On the Survey Template screen there
are parameters, such as setpoint, that can be modified for a specific survey. After setting the
required parameters, the start survey process can be selected. This will timestamp the
selection and the data logger will log all channels that have been selected for logging.
The operator may receive deviation alarms depending on the current input and setpoint as well
as the alarm settings. The alarm will notify the operator when an input is outside the
plus/minus tolerance for the setpoint. The alarm information will display on the data logger
and show the number of channels above tolerance and below the tolerance. The survey
continues to run. It is simply providing the operator with the information on the display.
The operator can view the input channel data on a number of different screens. The overview
display will display all channels on the device.
At any time, the operator can view the data in real time from the computer using the SDS
Reporter software. When selected, the real time data option displays data every 10 seconds.
The system will update the data in 10 second intervals every minute. Follow instructions for
connecting the data logger to the PC.