Measurement-computing E-1608 Bedienungsanleitung PDF herunterladen (Seite 13)

E-1608 User's Guide Functional Details

The E-1608 pinout locations are shown in Figure 3 below.

Figure 3. E-1608 pinout

Signal connections

Analog input

You can configure the analog inputs for SE or DIFF mode. The input voltage range is software selectable for

±10 V, ±5 V, ±2 V, or ±1 V.

With SE mode, connect up to eight inputs to CH0x to CH3x. SE mode requires two wires:

 Connect one wire to the signal you want to measure (CH#x).

 Connect one wire to the analog ground reference (AGND).

With DIFF mode, connect up to four differential inputs to CH0H/CH0L to CH3H/CH3L. DIFF mode requires

two wires plus a ground reference:

 Connect one wire to the high/positive signal (CHxH).

 Connect one wire to the low/negative signal (CHxL).

 Connect one wire to the analog ground reference (AGND).

Floating voltage source

When connecting DIFF voltage inputs to a floating voltage source, make sure the DIFF input channel has a DC

return path to ground. To create this path, connect a resistor from each low channel input to an AGND pin. A

value of approximately 100 kΩ can be used for most applications.

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Measurement-computing E-1608 Bedienungsanleitung Seite 13