Analog DC to DC Signal Conditioners, Converters,  Isolators, Transmitters

lifetime warranty
  • Lifetime Warranty on API Modules
  • LoopTracker® LEDs
  • Hot-Swappable Plug-In Design
  • Zero and Span Output Calibration
  • Push to Test Output
  • Full I/O/Power Isolation

Click on model numbers below
for data sheets
Literature and Links

API product brochure

Options & accessories

Cross reference

UL Approvals

API modules USA
API modules Canada

APD modules USA
APD modules Canada

Reference Info

Ground Loops
LoopTracker and Output Test
Sink vs Source


Monitoring motor speed with a PLC
Building heat SCR control
Manual override of computer control
Monitor pressure with a PLC
Control & monitor with one flow meter
Monitor product moved by conveyor
Pharmaceutical process validation
Dam bubbler
SCR drive voltage
Blower speed
DC motor voltage and current
DC motor current
Bindicator level xmtr to PLC
Special API4300 for engine speed
Solar panel voltage
Contol conveyor material
Sewage pumping stations
Hydraulic fracking control
Anemometer interface to PLC
Special API4300 for engine speed
How to Order
  1. Select a model
  2. See data sheet for ordering info and power options
  3. Request an API price list via chat
  4. 2-5 day typical lead time (USA customers)
  5. To place your order
Model Input/Output Features Product
IsoSplitter® Signal Splitters
DC-DC Signal Isolator-Splitter

Factory Configured
22.5 mm DIN

APD 4930

APD 4930 Features
Specify input range
0-10 mVDC to 100 VDC
±50 mV to ±10 VDC
0-1 mADC to 0-50 mADC, 4-20 mADC

Specify output range for each channel
2 independent channels
0-1 V to 0-20 V
±1 V to ±10 V
0-1 mA to 0-25 mA, 4-20 mA
  • Removable plugs
  • Output LoopTracker LEDs
  • Selectable sink/source mA input
  • 15 V input loop power supplies
  • Sourcing mA output (sinking optional)
  • 20 V output loop power supplies
  • Sinking mA outputs optional
  • Output test/manual override terminals
  • Full I/O/power isolation
  • DIN rail mount
  • 22.5 mm wide
  • Universal power 85-265 VAC, 60-300 VDC
  • D option for 9-30 VAC/VDC power

APD 4930 IsoSplitternew
APD 4930 DC IsoSplitter