Level Switch
CTF312 Hygienic Tuning Fork Level Switch
An electronic circuit continuously excites the tuning fork, causing it to mechanically vibrate. When the prongs of the fork contact anything with substantial mass, the resonant frequency of the fork decreases. The circuit detects this frequency change and indicates the presence of mass contacting the fork.
Application
- Suitable for food industry and pharmaceutical industry
- Detect high/low level of both liquid and solid
- Storage tank，reactor
Feature
- AC&DC dual power supply design.
- High / Low fail safe modes.
- Adjustable sensitivity to fit versatile density of material.
- No mechanical moving parts, maintenance free.
- Unaffected by flow, foam, solids content, coating and properties variation of targeted media.
- Withstand static electricity.
- Fast delay time 0.6S(adjustable).
Specifications
- Measuring range 0 ~ 30m
- Power supply: 20…250VAC/VDC, 50/60HZ
- Power: Max.10VA
- Sensitivity: High/Low
- Cable entry: 1/2"NPT×2 holes
- Process connection: G1" or 1"NPT
- Process pressure: Vacuum…20bar
- Ambient temperature: -40℃…70℃
- Process temperature: -40℃…130℃
- Output: Relay, SPDT, 2A/250VAC Max. or NPN/PNP or NAMUR
- Delay: 0.6S action; 1S…3S reset
- Vibrational frequency: 355HZ…365HZ
- Tine material: SUS 304/316
- Fail safe modes: High/Low
- Housing/Protection: Aluminium/ IP65
- Max. vertical bearing force of the tuning fork: 20Nm
- Min. induction density of the induction rod: Powder 0.23g/cm3; Liquid 0.8g/cm3