Features:
- Converts a 0–100% potentiometer input to a 4–20 mA current output.
- Uses an isolated KBP input/output signal path.
- Provides switch-selected zero and span settings for field range adjustment.
POUNDFUL PF-KBP-21Q-3 places the potentiometer, excitation circuit, and current output in one plug-in transmitter.
The 21Q configuration defines the input and output ranges, while suffix 3 defines the power supply.
Only the confirmed exact-code configuration is retained; unsupported application claims are removed.
The POUNDFUL PF-KBP-21Q-3 Programmable Potentiometer Transmitter may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
POUNDFUL PF-KBP-21Q-3 Programmable Potentiometer Transmitter Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Potentiometer range setup
- Input span: The confirmed input represents zero to one hundred percent travel.
- Resistance selection: Switch settings adapt the input to the potentiometer resistance.
- Zero control: The lower position is aligned with the output starting point.
- Span control: The upper position is aligned with the output full-scale point.
4–20 mA conversion
- Lower output: Zero-percent position is assigned to the calibrated 4 mA point.
- Upper output: Full travel is assigned to the calibrated 20 mA point.
- Response: The documented 0–90% response is no more than 250 ms.
- Load path: The receiving analog input closes the current loop.
Separated signal circuits
- Sensor side: The potentiometer and excitation path remain on the input side.
- Output side: The 4–20 mA circuit drives the receiving device.
- Isolation rating: The input/output barrier is rated at 1,600 V DC.
- Withstand test: Power, input, and output withstand 1.5 kVAC for one minute.
Commissioning sequence
- Code check: Confirm 21Q input/output and suffix 3 supply before wiring.
- Polarity: Verify the 24 V DC and current-loop terminal polarity.
- Calibration: Set resistance range, zero, and span with the actual potentiometer connected.
- Final check: Move the sensor through its range and confirm both endpoint currents.