Input Card Connections - Hach sc1000 User Manual

Installation

3.6.2 Input Card Connections

Figure 23 Input Card Cable Connections and Jumper Setting
1. Jumper Switches
Terminal
1
2
3
4
5
6
7
8
9
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If the sc1000 is equipped with the input card option, instruments with
(0–20 mA / 4–20 mA) signals can be connected to the input card. The signals can be
scaled as required and given names and units. Digital signals (i.e. open/closed or on/off)
can also be connected to the input card.
Refer to the Plug-in Expansion Card Instruction Sheet for information on installing the
input plug-in expansion card.
1. Remove power from the instrument.
2. Connect the inputs as shown in
3. The inputs can be switched between analog and digital using the jumper switches.
Place the jumper on both pins to switch to digital, place the jumper on one pin to
switch to analog.
4. Refer to Configuring New Components on page 54
2.
Table 9 Input Card Terminal Assignments
Figure 23 and Table
1
Terminal Block– Refer to Table 9
Designation
Input 1 +
Input 1 –
Input 2 +
Input 2 –
Input 3 +
Input 3 –
Input 4 +
Input 4 –
PE (Protective earth)
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9.
for operation setup instructions.
1 2 3 4 5 6 7 8 9
2
for terminal assignments.
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