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Signal Conditioners, Signal Isolators, Process Transmitters
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DC Input Signal Conditioners & Transmitters
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DC to DC Signal Conditioners &Transmitters
Click on model numbers below for data sheets and application information
LoopTracker® LEDs
Output Test
Lifetime Warranty
Reference Info
Ground Loops
RFI / EMI
Model Input Output Features
API 2000 Series
DuoPak®
Two Channel Isolated Transmitter
Specify Input Type and Range for Each Channel
Factory Configured
Choose Any Two:
DC voltage or current
AC voltage or current
RTD
Frequency
Potentiometer
See data sheet for input specifications and model numbers
Specify Output Range for Each Channel
Factory Configured
0-1 V,  0-5 V, 
1-5 V,  0-10 V
±5 V,  ±10 V
0-1 mA,  0-20 mA,  4-20 mA
Others available
  • Two Independent Channels
  • I/O LoopTracker LEDs
  • Output Test Buttons
  • Full I/O/Power Isolation
  • Removable Plugs
  • DIN Rail or Surface Mount
  • 55 mm Wide
  • 80-265 VAC or 48-300 VDC Power
  • API 20xx DD for 9-30 VDC/ 10-32 VAC Power (+$60)
Api DuoPak
API 4300 G
Isolated DC-DC Transmitter
with Loop Power Supply
Specify Input Range
Factory Configured
0-100 mVDC to
0-100 VDC
±100 mVDC to ±10 VDC
0-1 mADC to
0-900 mADC
Others available
Specify Output Range
Factory Configured
0-1 V,  0-5 V, 
1-5 V,  0-10 V
±5 V,  ±10 V
0-1 mA,  0-20 mA,  4-20 mA
Others available
  • Hot-Swappable Plug-In Design
  • Direct Replacement for Action AP 4300
  • I/O LoopTracker LEDs
  • Output Test Button
  • Full I/O/Power Isolation
  • 18 V Loop Power Supply
  • Uses API-008 8-Pin Socket
  • 115 VAC Powered
  • A230 option for 230 VAC Power
  • D option for 9-30 VDC Power (+$60)
UL listed

Api 4300G
API 4300 DIN
API 4300 DD

Isolated DC-DC Transmitter
with Loop Power Supply

new product
Specify Input Range
Factory Configured
0-100 mVDC to
0-500 VDC
±100 mVDC to ±10 VDC
0-1 mADC to
0-900 mADC
Others available
Specify Output Range
Factory Configured
0-1 V,  0-5 V, 
1-5 V,  0-10 V
±5 V,  ±10 V
0-1 mA,  0-20 mA,  4-20 mA
Others available
  • I/O LoopTracker LEDs
  • Output Test Button
  • Full I/O/Power Isolation
  • 15 V Loop Power Supply
  • DIN Rail or Surface Mount
  • 22.5 mm Wide
  • 80-265 VAC/VDC Powered
  • API 4300 DD for 9-30 VAC/VDC Power (+$60)
Api 4300 DIN
API 4310 G
Isolated DC-DC Transmitter
Narrow Input Span
with Loop Power Supply
Specify Input Range
Factory Configured
0-10 mVDC to
0-100 mVDC
±50 mVDC
0-10 0 μADC to
0-1 mADC
Others available
Specify Output Range
Factory Configured
0-1 V,  0-5 V, 
1-5 V,  0-10 V
±5 V,  ±10 V
0-1 mA,  0-20 mA,  4-20 mA
Others available
  • Hot-Swappable Plug-In Design
  • I/O LoopTracker LEDs
  • Output Test Button
  • Full I/O/Power Isolation
  • 18 V Loop Power Supply
  • Uses API-008 8-Pin Socket
  • 115 VAC Powered
  • A230 option for 230 VAC Power
  • D option for 9-30 VDC Power (+$60)
UL listed

Api 4310 G
API 4380 G
Field Selectable Minuteman Setup
Isolated DC-DC Transmitter
with Loop Power Supply
24 Field Configurable Inputs
0-50 mVDC to
±10 VDC
0-1 mADC to
0-20 mADC
Others available
16 Field Configurable Outputs
0-1 V to ±10 V
0-2 mA to 0-20 mA
4-20 mA
  • Minuteman One-Minute Setup
  • Hot-Swappable Plug-In Design
  • Plug-in replacement for Action AP 4380 and Wilkerson MM 4380
  • I/O LoopTracker LEDs
  • Output Test Button
  • Full I/O/Power Isolation
  • 18 V Loop Power Supply
  • Uses API-008 8-Pin Socket
  • 115 VAC Powered
  • A230 option for 230 VAC Power
  • D option for 9-30 VDC Power (+$60)
UL listed

Api 4380G
API 4380 GHV3
Field Selectable Minuteman Setup
Isolated DC-DC Transmitter
High Voltage Input
24 Field Configurable Inputs
0-1 VDC to
±200 VDC
Others available
16 Field Configurable Outputs
0-1 V to ±10 V
0-2 mA to 0-20 mA
4-20 mA
  • Minuteman One-Minute Setup
  • Hot-Swappable Plug-In Design
  • I/O LoopTracker LEDs
  • Output Test Button
  • Full I/O/Power Isolation
  • Uses API-008 8-Pin Socket
  • 115 VAC Powered
  • A230 option for 230 VAC Power
  • D option for 9-30 VDC Power (+$60)
UL listed

Api 4380 GHV
API 4380 DIN
API 4380 DD

Field Selectable Minuteman Setup
Isolated DC-DC Transmitter
80-265 VAC or 48-300 VDC Powered
24 Field Configurable Inputs
0-50 mVDC to
±10 VDC
0-1 mADC to
0-20 mADC
Others available
16 Field Configurable Outputs
0-1 V to ±10 V
0-2 mA to 0-20 mA
4-20 mA
  • Minuteman One-Minute Setup
  • I/O LoopTracker LEDs
  • Output Test Button
  • Full I/O/Power Isolation
  • 12 V Loop Power Supply
  • DIN Rail or Surface Mount
  • 22.5 mm Wide
  • 80-265 VAC or 48-300 VDC Powered
  • API 4380 DD for 9-30 VDC Power  (+$60)
Api 4380 DIN
API 4385 G
Field Selectable Minuteman Setup
Isolated DC-DC Transmitter
Wide Ranging w. Input Offset
with Loop Power Supply
24 Field Configurable Inputs
0-50 mVDC to
0-20 VDC
0-200 μADC to
0-40 mADC
Others available
Selectable Zero Offset
16 Field Configurable Outputs
0-1 V to ±10 V
0-2 mA to 0-20 mA
4-20 mA
  • Minuteman One-Minute Setup
  • Hot-Swappable Plug-In Design
  • I/O LoopTracker LEDs
  • Output Test Button
  • Full I/O/Power Isolation
  • 18 V Loop Power Supply
  • Uses API-008 8-Pin Socket
  • 115 VAC Powered
  • A230 option for 230 VAC Power
  • D option for 9-30 VDC Power (+$60)
UL listed

Api 4385G
DPI HV-DC
Factory Set
Field Changeable
Isolated DC-DC Transmitter
High Voltage Input
Specify Input Range
7 Standard, 1 Custom
Factory set
Can be changed in the field
0-100 VDC to
0-2000 VDC
Specify Output Range
16 Ranges
Factory set
Can be changed in the field
0-1 V to ±10 V
0-2 mA to 0-20 mA
4-20 mA
  • I/O LoopTracker LEDs
  • Output Test Button
  • Full I/O/Power Isolation
  • DIN Rail or Surface Mount
  • 55 mm Wide
  • 115 VAC Powered
  • A230 option for 230 VAC Power
  • D option for 9-30 VDC Power (+$60)
API DPI HV-DC
API 4390
2 Channel DC-DC Transmitter Isolator
Specify Input Range
Factory Configured
2 Independent Channels
0-100 mVDC to
0-10 VDC
0-1 mADC to
4-20 mADC
Others available
Specify Output Ranges
Factory Configured
2 Independent Channels
0-100 mVDC to
0-10 VDC
0-1 mADC to 4-20 mADC
  • I/O LoopTracker LEDs
  • Output Test Buttons
  • Full I/O/Power Isolation
  • DIN Rail or Surface Mount
  • 55 mm Wide
  • 115 VAC Powered
  • A230 option for 230 VAC Power
  • D option for 9-30 VDC Power (+$60)
new product
Removable Plugs!

Api 4390 DIN

API 4391
2 Channel DC-DC Transmitter Isolator
Bipolar Output
Specify Input Range
Factory Configured
2 Independent Channels
0-100 mVDC to
0-10 VDC
0-1 mADC to
4-20 mADC
Others available
Specify Output Ranges
Factory Configured
Bipolar DC Volts
2 Independent Channels
±5 VDC, ±10 VDC
Others Available
  • I/O LoopTracker LEDs
  • Output Test Buttons
  • Full I/O/Power Isolation
  • DIN Rail or Surface Mount
  • 55 mm Wide
  • 115 VAC Powered
  • A230 option for 230 VAC Power
  • D option for 9-30 VDC Power (+$60)
API 4392
2 Channel DC-DC Transmitter Isolator
Bipolar I/O
Specify Input Range
Factory Configured
Bipolar DC Volts or mA
2 Independent Channels
±5 VDC, ±10 VDC
Others Available
Specify Output Ranges
Factory Configured
Bipolar DC Volts or mA
2 Independent Channels
±5 VDC, ±10 VDC
Others Available
  • I/O LoopTracker LEDs
  • Output Test Buttons
  • Full I/O/Power Isolation
  • DIN Rail or Surface Mount
  • 55 mm Wide
  • 115 VAC Powered
  • A230 option for 230 VAC Power
  • D option for 9-30 VDC Power (+$60)
Need a Signal Splitter to convert one input to two or more isolated outputs?
Discontinued Products
API 4010 G Non-Isolated DC-DC Transmitter with Loop Power Supply. See API 4300 G
API 4050 G Non-Isolated DC-DC Transmitter Narrow Input Span with Loop Power Supply. See API 4310 G
Phone:  800-942-0315 or 847-918-3510 Fax:  800-949-7502 or 847-968-4891
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