ICP DAS USA PCI-1202 Series Hardware User Manual page 27

Figure 2-5. Connecting to singled-ended input configuration
PCI-1202/1602/1800/1802
A/D CH0
A/D CH1
A/D CH n
AGND
Figure 2-6. connecting to thermocouple configuration
PCI-1202/1602/1800/1802
Note : If the input signal is not thermocouple, the user should use oscilloscope to measure
common mode voltage of Vin before connecting to PCI-1202/1602/1800/1802. Don＇t use
voltage meter or multimeter.
CAUTION
the analog input source and the AGND is 70 Vp-p, so the user must make sure that the
input signal is under specification first. If the common mode voltage is over 70 Vp-p, the
input multiplexer will be damaged forever.
PCI-1202/1602/1800/1802 Hardware User's Manual
A/D CH 0 HI
A/D CH 0 LO
A/D CH n HI
A/D CH n LO
A. GND
Do not join LO to A.GND at the computer
: In Figure 2-6, the maximum common mode voltage between
Es
(Ver. 4.2, Dec/2009, PMH-014-42)---- 27