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High Low Alarm Limit Switch Level Switch PNP Relay NPN Output
High Low Alarm Limit Switch Level Switch PNP Relay NPN Output Description:
The tuning fork level switch is caused by the resonance of the piezoelectric crystal to cause vibration. When subjected to material damping, the amplitude is drastically reduced and the frequency and phase are significantly changed. These changes are detected by the internal electronic circuit, and after processing, conversion Into the switch signal output.
High Low Alarm Limit Switch Level Switch PNP Relay NPN Output Parameters:
| Supply Voltage | 24VDC or 220VAC |
| Output Way | SPDT relay (single-pole double-throw) |
| Ambient Temp | -20℃～70℃ |
| Medium Temp | -40℃～150℃ |
| Operation Pressure | Less than 2MPa |
| Medium Density | Minimal 0.6g/cm3 |
| Time-lapse | 1～50s (optional) |
| Power Dissipation | 0.5W |
| High-low signal Alarm | It can be set as HLFS (high alarm) or LLFS (low alarm) |
| Thread Spec | G 1/2” |
| Electrical Connection | 1”NPT thread installment (standard, BSPT optional); |
| Flange installment (optional) | |
| Ingress Protection of Shell | IP65 |
| Explosion-proof | Exd II CT4 |
High Low Alarm Limit Switch Level Switch PNP Relay NPN Output Features:
1. Strong adaptation
The different electrical parameters and densities of measuring medium have no influence for the measurement. Scale formation, agitation, turbulence, bubbles, vibration, medium viscosity, high temperature and other terrible conditions also have no influence for the measurement.
2. Adjustment free
The measurement of limit switch of turning fork does not influenced by the electrical parameters and densities of measuring medium, therefore, there is no need to do field adjustment no matter what kind of liquid is measured.
3. Maintenance free
The measuring process of limit switch of turning fork is completed by electronic circuit, without any moving parts, therefore, there is no need to maintain once it is installed and put into use.
