National Instruments cFP-Al-110, FP-Al-110 Input Ranges

Figure 6. Current Source without External Power Supply

Figure7 shows how to connect a current source with an external

power supply to one channel of the [c]FP-AI-110.

Figure 7. Current Source with External PowerSupply

Input Ranges

To prevent inaccurate readings, choose an input range such that the

signal you are measuring does not exceed either end of the range.

VSUP

VIN

To Analog

Input Circuitry

To Next Channel

COM

[c]FP-AI-110

IIN

Current

Source

1 A

Max

VSUP

VIN

To Analog

Input Circuitry

To Next Channel

COM

[c]FP-AI-110

IIN

–

Loop-Powered

Current

Transducer

10–30 VDC

External

Power Supply

(Optional)

1 A

Max

2 A

Max

Contents

Main FieldPoint Operating Instructions FP-AI-110 and cFP-AI-110 Eight-Channel, 16-Bit Analog Input Modules Features Installing the FP-AI-110 Installing the cFP-AI-110 Wiring the [c]FP-AI-110 Page Taking Measurements with the [c]FP-AI-110 Figure 4. Voltage Source without External Power Supply Figure 3. FP-AI-110 Analog Input Circuit Measuring Voltage with the [c]FP-AI-110 [c]FP-AI-110 Measuring Current with the [c]FP-AI-110 Figure 6. Current Source without External Power Supply Figure 7. Current Source with External PowerSupply Input Ranges Overranging Filter Settings Status Indicators Upgrading the FieldPoint Firmware Isolation and Safety Guidelines Page Safety Guidelines for Hazardous Locations Special Conditions for Safe Use in Europe Safety Guidelines for Hazardous Voltages Specifications Input Characteristics Effective resolution by input signal range and filter setting Input characteristics by filter setting Voltage Inputs Page Current Inputs Physical Characteristics Power Requirements Safety Isolation Voltage Environmental Shock and Vibration Safety Electromagnetic Compatibility CE Compliance Mechanical Dimensions Where to Go for Support 373280A-01 Jun05