The field configurable AP4380 isolator offers wide ranging input and output capability for scaling and transmitting analog DC signals. The AP4380-2000 will accept input voltage spans from 10mV up to 100 volts, as well as input current spans from 1mA to 100mA. The AP4380-2001 will accept input voltages up to 200V, as well as the same input current ranges.The input zero and span potentiometers enable 50% input zero and span adjustability. For example, the 0-10V input range can be elevated to 5-10V, compressed to 0-5V or set to 2.5 - 7.5V. The AP4380 offers four (4) popular output ranges: 0-5V, 0-10V, 0-1mA and 4-20mA. The 4-20mA compliance is a powerful 20VDC. Model AP4380 can be configured to accept bipolar input ranges and offers selectable normal or reverse acting operation.

The AP4380 is a 3-port industrial isolator -- the output is optically isolated from its input up to 1500 VDC. The ASIC*-based I/O channel is independently transformer isolated from the selectable 120/240VAC power supply.

Application

The Action Pak AP4380 field configurable isolator is useful in eliminating ground loops, converting signal levels and providing signal drive and redundancy. The wide ranging capability of the AP4380 provides quick universal spare part coverage.

Diagnostic LED

The AP4380 is equipped with a dual function LED signal monitor. The green, top-mounted LED indicates line power and input signal status. Active line power is indicated by an illuminated LED. If the input signal is 10% more than full scale range, the LED will flash at 8Hz. Below 0%, the flash rate is 4Hz.

Application

The factory presets the 4380-2000 input and output to 4-20mA, as shown in Figure 1. The 4380-2001 is preset to 0/200V input and 4/20mA output. The supply power is configured for 120 VAC operation. For other I/O ranges, remove the four base screws and case to access the I/O card.

Input 

• Full Scale Range: Voltage Input (field configurable)

  • 2000: 10mV to 100V

  • 2001: 10mV to 200V

• Impedance: >100K Ohms

• Overvoltage: Intermittent, 400Vrms Continous, 264 Vrms

Current Input (field configurable)    

• Full Scale Range: 1mA to 100mA

• Impedance: 20 Ohms, typical

• Overcurrent: 170mA RMS, max

• Overvoltage:60VDC

Common Mode (Input toGround):   1500VDC, max

• Zero Turn-Up: 50% of full scale range

• Span Turn-Down: 50% of full scale range

Output 

Voltage Output    

• Output: 0-5V, 0-10V

• Drive: 10mA, max (1K Ohms min. @ 10V)

Current Output    

• Output: 0-1mA, 4-20mA

• Compliance: 

  • 0-1mA: 10V, max. (10K Ohms, max)

  • 4-20mA: 20V, max. (1K Ohms, max)

LED Indication (green)     

• Input Range 

  • >110% input: 8Hz flash

  • <0% input: 4Hz flash