CSE Kingfisher PLUS+, Справочник по аппаратуре

Страница: 62 / 89

Superseded Hardware Manual 7.12 Page 62
AI-4 S p e c ific a tio n s
Input Current Ranges
4 to 20 mA and 0 to 20 mA
Input Voltage Ranges * 1 to 5 V and 0 to 5 V *
Inputs per Module 8
Calibration
Factory calibrated to 5
µ
A
Update Rate 1 to 10 s(all eight channels)
Scanning Life Expectancy
(for G6A-234P-ST relay) 100 million scans or 31.7 years @ 10 s update rate
Resolution
5
µ
A (1 LSB = 5
µ
A)
Absolute Accuracy 0.1% full scale + 0.1% reading
Common Mode Voltage 1500 V
Linearity <1 Least Significant Bit
Isolation 1500 VRMS between field and logic and between channels
Common Mode Rejection >70 dB at DC; >70 dB at 60 Hz
Cross-Channel Rejection >80 dB from DC to 1 kHz
Input Impedance
250
Ω
Input Filter Response 2 kHz
Operating Temperature -20 to 70 °C
Storage Temperature -40 to 85 °C
Operating Humidity 5 to 98% RH non-condensing
* Analog inputs can be modified from current inputs to voltage inputs by lifting one leg of the 250
Ω
channel resistor. Each channel has its own resistor, so any combination of channels can be converted.
If necessary, the response time of the analog input can be improved by replacing the 250
Ω
resistor
with a 100 K
Ω
resistor. It is recommended that modules be returned to Semaphore for factory
conversion if required. No responsibility will be taken by Semaphore for damage caused to boards
during modification performed by clients. The circuit board resistors to change are: channels 1 - 8 =
R1 – R8.