Temperature 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 (most models)
  • Full I/O/Power Isolation
Links
Product brochure
Options & accessories
Regulatory compliance


Click on PDF links below
for product information
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 select your product
  • Open pdf datasheet for your model
  • Select model, range, units, options, accessories
  • Contact us if you need assistance
Need a quote?
Ready to order?
Other ways to order
Model Input/Output Features Product

Universal Temperature Input to DC Isolated Transmitter


Field Programmable


APD 4000  from $469

Open Datasheet
Download Datasheet

Open Feature Summary
Download Feature Summary
Field programmable inputs
Thermocouples: J, K, T, E, R, S, N, B, C, D, G, M, P
RTDs: 2, 3, or 4 wire, 10Ω to 8000Ω RTDs
Thermistors: 44000 series, YSI 400, Spectrum
Custom input available

18 field selectable output ranges
Voltage: 0-1V, 0-2V, 0-4V, 0-5V, 1-5V, 0-8V, 0-10V, 2-10V,
±5V, ±10V
Current: 0-2mA, 0-4mA, 0-8mA, 0-10mA, 2-10mA, 0-16mA,
0-20mA, 4-20mA
Can be wired for sink or source
  • Covers all common temperature sensors
  • Removable plugs
  • Input LoopTracker LED
  • Output test button
  • Full I/O/power isolation
  • Selectable output sink/source
  • 20 V output loop power supply
  • Universal power 85-265 VAC, 60-300 VDC
  • D option for 9-30 VDC, 10-32 VAC power
  • For orders of 5 or more, call us for lead times

APD4000 UL approved
APD 4000

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