RTD Alarms and Transmitters

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





Click on PDF links below
for product information

Literature and Links


API product brochure
Options & accessories
Cross reference
Regulatory Compliance page

UL Approvals

Link to UL (requires login or sign-up)

UL file: E145968
See datasheets for applicable models

Reference Info


Sink or Source
LoopTracker and Output Test
Signal Conditioner Terminology
Industry Terminology
RFI & EMI
Ohm's Law
What is a Ground Loop?

Applications


Dam Bubbler
Measure Heat Exchanger Δ Temperature
Control Heat Exchanger Δ Temperature
Chiller Temperature
Bearing Temperature
Motor Temperature
Motor Overheating
Motor Bearings

How to Order

  1. Select a model
  2. See data sheet for ordering info and options
  3. Note that options affect pricing
  4. Request a quote via chat or call us
  5. 2-5 day typical lead time + shipping time
  6. 5-10 day lead time for quantities of 5 or more + shipping time
  7. To place your order
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