Omni 4000 Series - Page 174

OMNI 4000/7000 Installation Guide – Rev H
Page 8-6
Technical Specifications
Analog Inputs
Specifications
Input Type
1-5 V or 4-20 mA
Input Impedance
• 1 MΩ when configured for 1-5 V
• 250 Ω when configured for 4-20 mA (selected by installing
shunt resistor)
Resolution
14 binary bits
Accuracy
±0.025% of reading ± 2 counts 14 °F to 131 °F (-10 °C to
+55 °C)
Common Mode Voltage
±250 VDC to chassis ground
RTD Inputs
Specifications
RTD Configuration
4-wire bridge
RTD Resistance
100 Ω at 32 °F (0 °C)
Excitation Current
3.45 mA nominal (±0.02 mA)
Maximum Field Wiring
Resistance
1 kΩ per wire
Resolution
0.008 Ω
Range
-229 °F to 293 °F (-145 °C to +145 °C)
Accuracy
±0.025% of reading ±2 counts 14 °F to 131 °F (-10 °C to
+55 °C)
Common Mode Voltage
±250 VDC to chassis ground
Analog Outputs
Specifications
Resolution
12 binary bits
Output
Current source 4-20 mA
(referenced to transducer power return terminal)
Common Mode
±250 V to chassis ground
Maximum/Minimum Working
Loop Voltage
30 to 18 VDC
Loop Resistance
• 900 Ω with 24 VDC power
• 1.2k Ω with 30 VDC power
Update Rate
Each 500ms
Accuracy
±0.05% of reading ±2 counts 14 °F to 131 °F
(-10 °C to +55 °C)