Strain Gauge, Bridge, Pressure Transducer, Load Cell Alarms, Amplifiers, and Transmitters

lifetime warranty
  • Lifetime Warranty on API Modules
  • LoopTracker® I/O LEDs
  • Hot-Swappable Plug-In Design
  • Zero and Span Xmtr 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
Regulatory Compliance page

Reference Info


Troubleshooting strain gauge sensors
LoopTracker and Output Test
Sink vs source
Alarm terminology
Deadband
Relay protection & EMI suppression

UL Approvals

API modules USA
API modules Canada

APD modules USA
APD modules Canada

Applications


Chemical plant
Platform scale
Truck scale
Dispensing system automation
6-Wire strain gauges
Pressure sensor vs. pressure transmitter
Pressure transducer calibration
Weighing shipping containers
Pressure system calibration
Pressure transducer calibration
Plastic extruder pressure
Extrudung guitar strings
Custom product for high speed pill presses

How to Order

  1. Select a model
  2. See data sheet for ordering info and power options
  3. Request an API price list via chat
  4. 2-5 day typical lead time (USA customers)
  5. To place your order
Model Input/Output Features Product

Strain Gauge, Bridge, Pressure Sensor, Load Cell to DC Isolated Signal Conditioner


Factory Configured

API 4051 G I

Open Datasheet
Download Datasheet
Specify input range
Factory configured
One 350 Ω stain gauge, load cell or bridge sensor
1 mV to 2000 mV

Specify excitation voltage
4 to 10 VDC

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

  • LoopTracker LEDs for input and output
  • Full I/O/power isolation
  • RepalcesAction AP 4051
  • Internal bridge excitation source
  • Output test button
  • Uses API-011 11-pin socket
  • 115 VAC powered
  • A230 option for 230 VAC
  • P option for 85-265 VAC, 60-300 VDC power
  • D option for 9-30 VDC power

Api 4051 GI
API 4051 GI

Strain Gauge, Bridge, Pressure Sensor, Load Cell to DC Isolated Signal Conditioner


Factory Configured

APD 4051

Open Datasheet
Download Datasheet
Specify input range
Factory Configured
One 350 Ω stain gauge, load cell or bridge sensor
1 mV to 2000 mV

Specify excitation voltage
Factory Configured
4 to 10 VDC, 30 mA max.

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

  • I/O LoopTracker LEDs
  • Full I/O/power isolation
  • Internal bridge excitation source
  • Drive one bridge
  • Output test button
  • DIN rail mount
  • 22.5 mm wide
  • Universal power 85-265 VAC, 60-300 VDC
  • Option D for 9-30 VDC, 10-32 VAC power

APD 4051UL approved
APD 4051