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Signal Conditioners, Signal Isolators, Process Transmitters
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API modules Cecomp Gauges API-Camille Bauer APCS RheinTacho
Math Modules and Square Root Extractors
lifetime warranty See all DC input transmitters

Download pdf with all products on this page
pdf Math Modules and Square Root Extractor

Click on model numbers for data sheets
Reference Info pdf
RFI / EMI
Relay Protection & EMI Suppression
Application Examples pdf
Phase Separator Water Level Control
Air Flow Measurement
Model Input Output Features
pdf API 4400 G - API 4408 G   Specify input ranges
Factory configured
Input negative is common
0-1 V
0-5 V
1-5 V
0-10 V
±5 V
±10 V
0-20 mA
4-20 mA
Others available from 100 mV to 10 VDC
Specify output range
Factory configured
Others available
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

Isolated DC output
  • Hot-swappable plug-in design
  • Direct replacements for Action AP 4400 series
  • I/O LoopTracker LEDs
  • Output test button
  • Full I/O/power isolation
  • Uses API-011 11-pin socket
  • 115 VAC powered
  • A230 option for 230 VAC
  • P option for 60-265 VAC, 85-300 VDC power (+$60)
  • D option for 9-30 VDC power (+$60)
UL listed

Api 4400G
API 4400 G: (A+B+C+D)/4
API 4401 G: (A+B+C)/3
API 4402 G: (A+B)/2
API 4403 G: (A+B+C–D)/3
API 4404 G: (A+B–C–D)/2
API 4405 G:  A–B–C–D
API 4406 G: (A+B–C)/2
API 4407 G:  A–B–C
API 4408 G:  A–B
pdf API 4440 G

DC to DC Transmitter with
Square Root Extraction
Specify input range
Factory configured
0-50 mVDC to
0-200 VDC
0-1 mADC to
0-50 mADC
Specify output range
Factory configured
Others available
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
  • Hot-swappable plug-in design
  • Direct replacement for Action AP 4440
  • I/O LoopTracker LEDs
  • Output test button
  • Full I/O/power isolation
  • 18V loop power supply
  • Uses API-008 8-pin socket
  • 115 VAC powered
  • A230 option for 230 VAC
  • P option for 60-265 VAC, 85-300 VDC power (+$60)
  • D option for 9-30 VDC power (+$60)
UL listed

Api 4440G
Phone:  800-942-0315 or 847-918-3510 Fax:  800-949-7502 or 847-968-4891
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