The product
When the forks come in contact with a liquid, the resonant period are difference between the liquid and air, then the interface between the liquid and air will be detected and it output alarms.
Application
Providing indentifying Hi/Low level by measuring Interfaces between two different media and output alamrs.

Dimension

NO/NC Output Definition
| Alarm Type | Status | Alarming status | Relay Status | Output |
| HiAlarm | In Liquid | Alarming | off | Alarming |
| In Air | Alarming | on | Normal | |
| Fault | Alarming | off | Alarming | |
| LowAlarm | In Liquid | Alarming | on | Normal |
| In Air | No alarming | off | Alarming | |
| Fault | Alarming | Disconnect | Alarming |
Model Selection

Technical Data
| Principle | Measuring Type | Resonance |
| Measurement Deviation | 1000Hz | |
| Accuracy | Measuremetn Deviation | ±1mm |
| Delay | 2mm | |
| Repeatability | 0.1mm | |
| Application | Density Range | 500~1200 kg/m³ |
| Viscosity Range | 0.1~1000Cts | |
| Process condition | Process Temperature | -40℃~+150℃ |
| Ambient Temp. | -40℃~+70℃ | |
| Pressure | 1~50Bar | |
| Signal Output | NO/NC | NO/NC Relay output; |
| Current | 2-wire current(16A/8A) | |
| Voltage | For Current output | DC 21V~25V |
| For NO/NC output | DC 15V~32V | |
| For Instrisic Safety Type | DC24V~48V | |
| Material | Wetted parts | SS 316L |
| Casing | Aluminium alloy | |
| Fork Length | Customized | |
| Cable Entry | 2*NPT 1/2 | |
| Flange | Min 2inch (Class 300, Class 150) | |
| Hazardous and Safety Approval | Ingress protection | IP68 |
| Safety Function | SIL 2 | |
| Intrinsic safety | Ex d ⅡC T6 Gb Ex ia ⅡC T6 Ga |