This manual provides installation, wiring, operation, maintenance and troubleshooting instructions for Bühler FF moisture detector controllers.
About this manual
The document explains how to install and connect the FF series moisture detector controllers, covering safety precautions, power connections, and wiring for the various controller types (FF‑19, FF‑HM, FF‑..‑U). It also describes operation, sensitivity adjustment, maintenance, and fault handling.
Key sections include safety notes, transportation and storage guidelines, detailed installation steps, wiring diagrams, operation and maintenance procedures, fault diagnosis, and disposal instructions, plus technical specifications and appendices. This manual is written in Chinese.
What's inside
- Overview
- Important Safety Notes
- Transportation and Storage
- Installation and Wiring
- Operation and Maintenance
- Fault Diagnosis and Troubleshooting
- Repair and Disposal
- Appendices
- Technical Specifications
Specifications
| Maximum operating pressure | 2 bar (FF‑3‑N) / 40 bar (FF‑40) |
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| Maximum operating temperature | 3 °C to 50 °C |
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| Power supply voltage | 230/115 V AC or 24 V DC ±10 % |
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| Dimensions (L×W×H) | 70 mm × 75 mm × 109 mm |
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| Maximum output current | 2 A at 230 V |
Frequently asked questions
How is the sensitivity of the controller adjusted?
Rotate the potentiometer counter‑clockwise until the alarm stops; for FF‑HM‑230, FF‑19 and ER‑145/A/Ex the adjustment is done in the same way.