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Super Systems Inc.
Page 12 of 107
Color Touch Screen Data Logger Operations Manual
Figure 8 - Select Input Channels Option in Main Menu
Analog Inputs
The Super Systems, Inc. 31631 Analog Board contains a group of five channels isolated from the
main DC power source. The board can be connected to thermocouples, voltage sources from
20mV full scale to 1.28 Volts full scale, or 4 – 20 mA current loops. Take caution when using
current loops to avoid damaging the input (see
4 – 20 mA Current Loop connections
).
Thermocouple wires can be connected directly to the terminal blocks. The thermocouple
junctions should not be grounded. If they do touch a ground reference, all thermocouples on a
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