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S2 PH Automatic Controller (Micro‑Flow Pump)‑ Single‑Pump / Dual‑Pump
Identical in functions to the standard peristaltic‑pump‑equipped controller. Adopts a micro‑flow peristaltic pump with far lower flow rate, around 10 % of the standard version.
Description
It has exactly the same functions as the controller with standard peristaltic pump, but adopts a micro‑flow peristaltic pump for much lower flow rate - approximately 10% of that of the standard peristaltic pump.
Advantages: Features an even lower flow rate. Liquid is dispensed in droplets, which largely prevents significant pH overshoot caused by over‑dosing. Suitable for reaction volumes of 0.1‑1 L.
1. Flow‑rate data of the micro‑flow peristaltic pump are shown in the table below:
| Tubing Compatible with Micro‑Flow Pump | BPT Tubing 1 × 3.2 mm (Standard Accessory) | BPT Tubing 2 × 4 mm |
|---|---|---|
| Flow Rate Range | 0.4‑1.4 mL/min | 1.2‑4.2 mL/min |
See the figure below for appearance.

2. Selection of pH Electrodes
Please take the properties of the sample solution into consideration. For further details, please consult our online customer service.
*Prices vary for different electrodes. Selection shall be determined based on requirements such as temperature, solvent environment and sensitivity.
- The plastic‑body electrode is cost‑effective, yet not resistant to solvents or high temperatures.
- The glass electrode delivers sensitive measurement and withstands high temperatures. Specially‑customized versions can resist solvents and sterilization, though the glass body is fragile.
- BNC connector is compatible with laboratory benchtop instruments. S8 and K8S connectors are compatible with process‑grade electrodes for production applications.
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