Using the IntelliLogger™
36
T
HERMOCOUPLE
J, K, E, T, R and S type thermocouples can be directly connected to the ILIM-7 inputs.
Cold junction compensation is handled automatically on board such that thermocouple
readings read by the System Base are compensated for ILIM-7 ambient temperature.
V
DC
-H
I
Input channels A through D offer a bipolar Vdc-Hi input type that allow for direct
connection of signals up to +/-30VDC. As a Vdc-Hi input, 3 sub-ranges can be
selected via the HyperWare-II software channel settings.
V
DC
-L
O
All eight input channels offer bipolar Vdc-Lo input that allows for direct connection for
signals up to +/-2.2Vdc. As a Vdc-Lo input, 8 sub-ranges (ranging down to +/-19mV)
can be selected via the HyperWare-II software channel settings.
C
URRENT
All eight input channels offer bipolar mAdc input that allows for direct connection for
signals up to +/-22 mAdc. As a current input, 8 sub-ranges (ranging down to +/-
190uA) can be selected via the HyperWare-II software channel settings.
Configuration Switches
Channels A through D have a 3 switch DIP switch associated with each channel
(Figure 3-9). The combination of these 3 switches On/Off states sets the Input
Type per the switch setting pattern table shown in the upper left corner of Figure
3-9 or the following table:
Input Application
SW 1
SW2
SW3
Thermocouple or Low-Level Vdc (2.2Vdc or less)
ON
OFF
OFF
Vdc-Hi; Up to +/- 30Vdc
OFF
ON
OFF
DC Current; Up to 22mA
ON
OFF
ON
Table 3-1; Channel A, B, C and D Input Configuration Switch Settings
The schematic representation of these four input channels is shown in Figure
3-10.
Figure 3-10; Simplified Input Schematic for Channels A, B, C and D
