The pump must be stored and operated within 0–40 °C and below 80 % relative humidity to protect the electronics and ceramic core. All wetted components (ceramic plunger, PE/Teflon tubing) are chemically inert, but the system should be flushed after handling reactive electrolytes or solvents to prevent residue crystallization or corrosion.

• Temperature and Humidity Limits: Operate and store the pump only in environments between 0 °C and 40 °C with relative humidity below 80 % to avoid condensation on electronic components and degradation of the servo motor.
• Chemical Compatibility of Wetted Parts: All liquid‑contact surfaces are industrial ceramic (ZrO₂, Al₂O₃) and PE/Teflon tubing, which resist most acids, alkalis, and solvents, but verify compatibility with aggressive oxidizing agents or hydrofluoric acid prior to dosing.
• Electrical Safety and Grounding: Connect the pump to a grounded AC power source (220 V±10 % or 110 V±10 %) with the specified frequency (50/60 Hz) to prevent electrical shock or motor damage.
• Fluid Tubing Connection Integrity: Use the provided Ø6 mm ID / Ø8 mm OD PE or Teflon tubing and ensure all connections are tight to avoid leaks, as the valve‑free design relies on self‑sealing precision (2 μm clearance).
• Post‑Operation Flushing Requirement: After dosing corrosive or viscous media, flush the pump with a compatible cleaning solvent to prevent clogging, crystallization, or wear of the ceramic plunger chamber.

This high‑precision metering pump uses a reciprocating‑rotary ceramic plunger driven by a servo motor. Follow the steps below to initialize, prime, and perform dosing safely.

Required Equipment: Atomfair PP794 pump unit with integrated controller, 4.3‑inch touchscreen HMI for parameter entry, PE or Teflon inlet/outlet tubing (Ø6×8 mm), Appropriate dosing needle (Φ2.5, Φ4.0, or Φ6.0 mm)

1. System Inspection
   Inspect the pump, controller, tubing, and power cord for any physical damage or loose connections before connecting to the liquid source and power supply.
2. Connect Fluid Lines
   Attach the inlet tubing to the liquid reservoir and the outlet tubing to the dosing needle, ensuring all fittings are hand‑tightened to prevent leaks.
3. Power On and Prime
   Connect the pump to the correct AC power supply, turn on the controller via the touchscreen, then select the 'Priming' function to purge air from the tubing and ceramic chamber until a steady liquid stream appears.
4. Set Dosing Parameters
   Using the touchscreen HMI, program the desired single‑stroke volume (0–10000 µL), number of strokes, flow speed (1–1200 rpm), and enable functions such as suck‑back or delay dosing as needed.
5. Execute Dosing Cycle
   Press the start button on the touchscreen to begin the dosing cycle; the pump will automatically stop when the target total volume is reached and will store the operation in one of up to 100 recipe slots.
6. Perform Standby Cleaning
   After completing the dosing run, initiate the 'Standby Cleaning' function to flush the system with a compatible cleaning solvent and prevent residue buildup in the ceramic plunger assembly.
7. Shutdown and Power Off
   Disconnect the pump from the power supply after the cleaning cycle ends, and store the pump in a clean, dry environment within the specified temperature and humidity limits.

The Atomfair PP794 ceramic plunger pump delivers precise dosing (0.5% accuracy) for aggressive fluids up to 250°C, but its IP31 rating and 80% relative humidity limit require controlled laboratory environments to maintain performance and longevity.

Positive

• High-precision ceramic construction: The ZrO₂/Al₂O₃ plunger and chamber provide chemical inertness, wear resistance, and 2 μm matching precision, enabling self-sealing operation with ±3‰ flow stability and 0.5% dosing accuracy without additional seals or lubricants.
• Valve-free reciprocating rotary design: Eliminates dynamic seals and wearing parts, reducing maintenance; flow is adjustable via stroke length and rotation speed, supporting forward/reverse delivery with no leakage, bubbles, or clogging reported.

Trade-offs

• Controlled environment required: IP31 protection and <80% relative humidity limit deployment to clean, dry lab spaces; exposure to moisture or dust may compromise pump integrity and precision.
• Ambient-operating temperature gap: While the pump handles media up to 250°C, the operating environment must be 0–40°C, necessitating thermal isolation or active cooling for high-temperature dosing applications to maintain electronic integrity.

Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.

To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.

Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).