CIO-EXP32

Specifications

Document Revision 8.1, February, 2010
© Copyright 2010, Measurement Computing Corporation

Specifications
Typical for 25 °C unless otherwise specified.
Specifications in italic text are guaranteed by design.

Analog input
Table 1. Analog input specifications
Parameter

Specification

Number of channels
Input range
GainCalibration

32 differential (2 banks of 16)±10 V
Switch selectable by bank, additive values of X1, X10, X100, X200 and X500
Two offset potentiometers per bank (16 channels) and one Cold Junction
Compensation adjustment potentiometer per board.
Gain = 10.002% typical, 0.02% max
Gain = 100.005% typical, 0.05% max
Gain = 100
0.01% typical, 0.1% max
Gain = 2000.02% typical, 0.2% max
Gain = 500
0.05% typical, 0.5% max
Gain = 10.0005% typical, 0.005%
Gain = 100.001% typical, 0.01% max
Gain = 100
0.002% typical, 0.01% max
Gain = 2000.003% typical, 0.01% max
Gain = 500
0.005% typical, 0.02% max
Gain = 1± 20 ppm / °C
Gain = 10± 20 ppm / °C
Gain = 100± 40 ppm / °C
Gain = 200± 60 ppm / °C
Gain = 500± 100 ppm / °C
Offset± 15 V / °C
±10 V
90 dB
7 Hz, selectable through solder bridge (C pad)
-50 mV at positive input when thermocouple is open, selectable through solderbridge (V pad)
100k ohms to ground, selectable through solder bridge (G pad)
V and G pads open:
2 nA typical, 6 nA max
 V and G pads open:>100 Meg Ohms min V and G pads shorted
100 k Ohms min Power on:±35 V
 Power off:
±20 V

Gain error

Non-linearity

Temperature coefficient

Common mode range
CMRR @ 60 Hz
Input filter
Open thermocouple detect
Input ground reference
Input leakage current
Input impedance
Absolute maximum input voltage

Cold junction compensation
Table 2. Cold junction compensation specifications
Parameter

Specification

CJC output voltage
CJC zero crossing

24 mV / °C
0 mV at 0 °C2

CIO-EXP32

Specifications

Analog output
Table 3. Analog output specifications
Parameter

Specification

Number of channels
Output voltage range
Configuration
Current drive
Output coupling
Output impedance

3 (two from multiplexed inputs, one from CJC circuit)±10 V
Single–ended±5 mADC
0.1 Ohms max

Digital input
Table 4. Analog input specifications
Parameter

Specification

Digital input:

74LS14

Configuration
Number of channels
Input highInput low

Four bits for selecting multiplexer channel 0 through 15
4 input
2.0 volts min, 7 volts absolute max
0.8 volts max, -0.5 volts absolute minPower consumption
Table 5. Power consumption specifications
Parameter

Specification+5 V

300 mA typical, 390 mA max

Environmental
Table 6. Environmental specifications
Operating temperature range
Storage temperature range
Humidity

0 to 60 °C-40 to 100 °C
0 to 90% non-condensing3

CIO-EXP32Specifications

Main connector and pin out
Table 7. Connector specifications
Connector typeCompatible cables with connector P1
Compatible cables with connector P2

P1 and P2: 37-pin D type connectors
C37FF-x (connecting to additional CIO-EXP32 boards)
 C37FF-x (connecting to a DAS08 board) C-EXP2DAS16-10 (connecting to a DAS16 board)
Table 8. Connector pin out

Pin12345678910111213141516171819Signal Name+12V PC BusNCNCNCNCNC
MUX Addr 1
MUX Addr 2MUX Addr 3
MUX Addr 4
Output 15
Output 14
Output 13
Output 12
Output 11
Output 10
Output 9
LLGND / Output
NC / LLGND

Pin202122232425262728293031323334353637

Signal Name-12V PC BusNC
NC
NC
NC
NCNC
NC
Power GND
+5V
Output 7
Output 6
Output 5
Output 4
Output 3
Output 2
Output 1
Output 04

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CIO-EXP32-spec.doc