Omega Engineering OMB-NETSCAN 1500, Руководство пользователя

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Hardware 7-15
CSN14/HV/S
High Voltage Card with Safety Jack Connectors
The CSN14/HV/S card contains 16 differential input channels and is for use with “safety jack” type connectors. Each
CSN14/HV/S card is capable of measuring analog input signals on any of the following three programmable ranges:
±2.5 volt, ±25 volt and ±250 volt.
CSN14/HV/S, High Voltage Card with Safety Jack Connectors
Number of Inputs:
16 differential; programmable by channel for input range
Input Connectors:
Safety Jack
Voltage Range, Accuracy and Resolution:
• ±
2.5V;
±
0.02%; 78.14
µ
V/bit
• ±
25 V;
±
0.02%; 781.4
µ
V/bit
• ±
250 V;
±
0.02%;
7.81 mV/bit
Digital Filtering:
Used for AC line cycle noise rejection.
Selectable off, 1-256 samples in a binary count.
Temperature Coefficient:
<
0.01%/
°
C
Input Impedance: 10 M
Ω
typical
Input Bias Current: 20 pA maximum.
Maximum Common Mode Voltage:
1
500 VDC or 500 VAC peak
Maximum Normal Mode Voltage: 500 VDC or 500 VAC peak
Common Mode Rejection: 100 dB typical.
Maximum Allowable Input: 500 VDC or 500 VAC peak
Channel-to-Channel Isolation:
500 VDC or 500VAC peak
Channel-to-Power Ground Isolation:
2
500VDC or 500 VAC peak
Note 1: Specified for coupling impedance >30 M
Ω
and common mode frequency < 60 Hz. 700 VDC or 700 VAC peak ; 325 VDC
or 325 VAC peak if used in the same system with a MTC/24 scanning module, before equipment damage occurs.
Note 2: 325 VDC or 325 VAC peak if used in the same system with a MTC/24 scanning module.