RTD Alarms and Transmitters

  • 6 Year 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
Links
Product brochure
Options & accessories
Regulatory compliance

Click on PDF links below
for product information
Reference Info
Ground Loops
RFI/EMI
LoopTracker and Output Test
Sink or Source

Applications
Dam Bubbler
Chiller Temperature
Bearing Temperature
Motor Temperature
Motor Overheating
How to select your product
  • Open pdf datasheet for your model
  • Select model, range, units, options, accessories
  • Contact us if you need assistance
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Model Input/Output Features Product

RTD to DC Isolated Transmitter


Factory Configured

API 4001 G L  from $449

Open Datasheet
Download Datasheet
Specify RTD type and temperature range
Factory configured
10 Ω to 2000 Ω RTD including
100 Ω: 0.00385α, 0.00391α
10 Ω Cu, 1000 Ω Ni-Fe,
120 Ω Ni or special

Specify output range
Factory configured
0-1 V to 0-10 V
±1 V to ±10 V
0-1 mA to 0-20 mA, 4-20 mA

  • RTD linearization
  • Hot-swappable plug-in design
  • I/O LoopTracker LEDs
  • Output test button
  • Full I/O/power isolation
  • 2-wire or 3-wire RTD
  • Lead wire compensation for 3-wire
  • Uses API-008 8-pin socket
  • 115 VAC powered
  • A230 option for 230 VAC
  • P option: 85-265 VAC, 60-300 VDC power (+$60)
  • D option: 9-30 VDC power (+$60)



Api 4001G L UL listed
API 4001 GL

RTD to DC Isolated Transmitter


Factory Configured

APD 4001  from $449

Open Datasheet
Download Datasheet
Specify RTD type and temperature range
10 Ω to 2000 Ω RTD including
100 Ω: 0.00385α, 0.00391α,
10 Ω Cu, 1000 Ω Ni-Fe,
120 Ω Ni or special

Specify output range
0-1 V to 0-10 V
±1 V to ±10 V
0-1 mA to 0-20 mA, 4-20 mA
  • RTD linearization
  • Removable plugs
  • I/O LoopTracker LEDs
  • Output test button
  • Full I/O/power isolation
  • 2-wire or 3-wire RTD
  • Lead wire compensation for 3-wire
  • DIN rail mount
  • Universal power 85-265 VAC, 60-300 VDC
  • D option for 9-30 VDC, 10-32 VAC power

APD4001UL approved
APD 4001