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Omega Vehicle Security OMB-CHARTSCAN 1400 User Manual

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Hardware
3-15
CSN14/TC/P  
Thermocouple and Low Volts Card with Subminiature Plugs
The CSN14/TC/P card contains 16 differential input channels, each of which may be configured as any
thermocouple type or as a milli-volt input.  Temperature values may be returned in units of °C, °F, °K, °R, or mV.
This signal conditioning card contains “subminiature plug type” connectors. There are no user configuration switches
or jumpers on the CSN14/TC/P card.
Number of Channels:
• 
16 differential; programmable by channel for specific thermocouple type or voltage.
Input Types:
• 
J, K, T, E, R, S, B, N; and ±10V, ±5V, ±1V, ±100mV
Input Connector:
• Subminiature-plug
Temperature Range, Accuracy, and Resolution
1
• 
Type J:
-100
° to +760°C
-200
° to -100°C
± 0.5°C
± 0.8°C
0.10
°C
0.20°C
• 
Type K:
-100
° to +1372°C
-200°C to -100°C
± 0.6°C
± 0.8°C
0.10
°C
0.20°C
• 
Type T:
-100
° to +400°C
-200
° to -100°C
± 0.5°C
± 0.8°C
0.15
°C
0.25°C
• 
Type E:
-100
° to +1000°C
-200°C to -100°C
± 0.7°C
± 0.9°C
0.10
°C
0.20°C
• 
Type R:
0.0
° to +1780°C
± 2.0°C
0.40
°C
• 
Type S:
0.0
° to +1780°C
± 2.0°C
0.40
°C
• 
Type B:
+350
° to +1820°C
± 2.0°C
0.50
°C
• 
Type N:
-100
° to +1300°C
-200° to -100°C
± 0.6°C
± 0.9°C
0.15
°C
0.20°C
Temperature Units:
• 
°C, °F, °K, °R, mV and volts.
Fault Detection:
• 
Open T/C may be detected by a software query.
Cold Junction Sensors:
• 
One for every 4 input channels.
Input Impedance and Input Bias Current:
• 
1M Ohm typical;  and 20 nA maximum
Maximum Common Mode Voltage
4
:
• 
200 VAC, or 200 VDC peak
Maximum Normal Mode Voltage:
• 
10 VDC or 10VAC peak
Common Mode Rejection:
• 100 
dB 
typical
Maximum Allowable Input:
• 
± 25V rms
Channel-to-Power Ground
Isolation:
• 
± 200V peak
Channel-to-Channel Isolation:
• 
± 200V peak.
Temperature Coefficient:
• 
< (0.1 x rated accuracy)%/°C