API Retired Signal Conditioners

Below are links to datasheets for discontinued products.
We still provide technical support for these and API signal conditioners still carry our lifetime warranty.
Many new models have upgraded features. Feel free to call up to upgrade to the current model.

Discontinued DC Input
API 4300 DIN,
API 4300 DD
DC-DC Transmitter. See APD 4300 above.
API 4300 DIN PLC,
API 4300 DD PLC
4-20 mA DC-DC Transmitter. See APD 4300 PLC above.
API 4380 DIN,
API 4380 DD
DC-DC Transmitter. See APD 4380 above.
API DPI HV-DC High Voltage DC-DC Transmitter. See APD HV-DC above
API 4010 G Non-Isolated DC-DC Transmitter with loop power supply. See API 4300 G.
API 4050 G Non-Isolated DC-DC Transmitter Narrow Input Span with loop power supply. See API 4310 G
API 4390 DIN,
API 4391 DIN,
API 4392 DIN
2 Channel DC-DC Transmitter Isolators. See APD 2000.
API 4393 DIN G IsoSplitter DC-DC Signal Isolator-Splitter. See APD 4393.
Discontinued DC Input Alarms
API 1080 DIN DC Input Single Alarm Trip. See APD 1080 above
API 1090 DIN
API 1090 DD
DC Input Dual Alarm Trip. See APD 1090 above
Discontinued Frequency Alarms
API 1720G Frequency Input Dual Alarm Trip. Use APD 1720.
Discontinued Potentiometer Input
API 1800G Potentiometer Input Single Alarm Trip. Use APD 1800.
API 1820 G Potentiometer Input Dual Alarm Trip. Use APD 1820.
API 4003 G Potentiometer to DC Signal Conditioners, Non-isolated. Use API 4003 G I
Discontinued Power Supplies
API 9046 G CH API bipolar power supplies
Discontinued Strain Gauge Input
API 1500 G, 1520 G Bridge Input Single Alarm Trip. See APD 1500 series.
API 4051 G Bridge to DC Signal Conditioners, Non-isolated. Use API 4051 GI.
API 4059 DIN Isolated Bridge to DC Signal Conditioners. See APD 4059.
API SUM-000,
API SUM-025
Bridge Summing Board. Call for replacement.
API SUM Board Instruction Manual Bridge Summing Board Detailed Instructions
Discontinued Thermocouple Input
API 4000 G RTD or T/C to DC Signal Conditioners. Replaced by the Sineax V624
API 4100 G Non-Isolated T/C-DC Transmitter. Replaced by the API 4130 GL
API 4130 GL sold before 07-12-16 Non-microprocessor T/C-DC Transmitter.