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Signal Conditioners, Signal Isolators, Process Transmitters
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API modules Cecomp Gauges API-Camille Bauer APCS RheinTacho
Potentiometer Alarms, Signal Conditioners, and Transmitters
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Potentiometer Input Transmitters
Click on model numbers below for data sheets
Hot-Swappable Plug-In Design
LoopTracker® LED
Output Test Button
Lifetime Warranty
Reference Info
Alarm Terminology
Deadband
Relay Protection & EMI Suppression
RFI / EMI
Model Input Output Features
API 2000 Series
DuoPak®
Two Channel Isolated Transmitter

new product
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 Powered
  • API 20xx DD for 9-30 VDC/ 10-32 VAC Power (+$60)
Api DuoPak
API 4003 G I
Isolated Potentiometer to DC Transmitter
Any Full-Range Potentiometer
0-100 Ω to
0-1 Mega Ω
Specify Output Range
Factory Configured
Others available
0-1 V
0-5 V
1-5 V
0-10 V
±5 V
±10 V
0-20 mA
4-20 mA
  • Hot-Swappable Plug-In Design
  • Direct replacement for Action AP 4003
  • 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 4003G I
API 4008 G
Field Selectable Minuteman Setup
Isolated Potentiometer to DC Transmitter
Any Full-Range Potentiometer
0-100 Ω to
0-1 Mega Ω
18 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 4008G
Discontinued Products
API 1800G Potentiometer Input Single Alarm Trip. Call factory for replacement.
API 1820 G Potentiometer Input Dual Alarm Trip. Call factory for replacement.
API 4003 G Potentiometer to DC Transmitter, Non- isolated. Use API 4003 G I
Phone:  800-942-0315 or 847-918-3510 Fax:  800-949-7502 or 847-968-4891
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