
ZENO
®
-3200 USER MANUAL
Coastal Environmental Systems (206) 682-6048
Page 152
Contact Coastal Environmental Systems if you need an Analog Expansion
Board.
Use the following table if you are using any Analog Expansion Boards:
Sensor Type Available Optional Analog Expansion Board
Channels (Line Item #3)
Code
(Line Item #1)
Name
Analog
Expansion Board
Channels
A A1- to A8- and A1+ to A8+
B B1- to B8- and B1+ to B8+
C C1- to C8- and C1+ to C8+
1 12-BIT ADC
D D1- to D8- and D1+ to D8+
A A1- to A8- and A1+ to A8+
B B1- to B8- and B1+ to B8+
C C1- to C8- and C1+ to C8+
2
18-bit Single-Ended
ADC
D D1- to D8- and D1+ to D8+
A A1 to A8
B B1 to B8
C C1 to C8
3 18-bit Differential ADC
D D1 to D8
When any Analog Expansion Boards are used, channels +5 and -5 on the
main ZENO
®
-3200 are NOT available to be used for data collection.
To configure Line Items #4 and #5 for an 18-bit ADC sensor, use the table shown below.
Matching the input scale to the sensor improves the resolution, linearity and
dynamic range of the signal, while reducing noise effects.
When applying the analog channel gain and attenuation, ensure that the
sensor signal level will not lie outside the A/D converter’s 512 mV input
range. Larger signals will not damage the ZENO
®
-3200, but will give
erroneous readings; signals outside 750 mV may also affect other channels.
Do not amplify analog signals beyond the range 512 mV!
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