WS1528 Frequency to 4-20 mA / RS485 Transmitter – 0-100 Hz to 0-10 kHz Input, 0.2 % Accuracy, DIN Rail

Description

Turbine flow meters, magnetic pickups (MPU) and other pulse-output sensors give a frequency, while most RTUs and PLC analog cards want 4-20 mA or a Modbus value. The WS1528 sits on a 35 mm DIN rail and converts a frequency input into a 4-20 mA output or an RS485 output, so a pulse signal can be trended and alarmed like any other analog point.

Typical uses: turbine meter flow rate into an analog input, engine or pump speed from a magnetic pickup, and conveyor or shaft speed monitoring.

Specifications (as listed by the supplier)

• Brand: Qidian Auto
• Model: WS1528
• Input: Frequency signal
• Input range: 0-100 Hz / 0-500 Hz / 0-1 kHz / 0-5 kHz / 0-10 kHz (options)
• Output: 4-20 mA or RS485 (options)
• Accuracy class: 0.2 %
• Operating temperature: -20 to 60 °C
• Mounting: 35 mm DIN rail
• Display: None (analog unit)

Notes

• Pick the input range closest to your maximum signal frequency for best resolution.
• Not rated for hazardous areas per the supplier listing; mount in a safe-area panel.