HY-3D stroke monitoring and protecting device is special designed use for measuring rotating equipments displacement, e.g. reciprocating cylinder, heat expansion, power limiter, synchronizer, start-up valve and etc. Can monitor and inspect displacement continuously, and auto submit signal of alarm and trip currency output. Performance is stable, safety and reliable.

1. Measuring range: 
        HY-3D-51 reciprocating cylinder monitoring and protecting device 0~250mm;
        HY-3D-52 heat expansion monitoring and protecting device 0~35.0mm;
        HY-3D-53 oil level monitoring and protecting device ±400mm;
        HY-3D-54 synchronizer monitoring and protecting device 0~50.0mm;
        HY-3D-55 valve position monitoring and protecting device 0~50.0mm;
        HY-3D-56 power limiter monitoring and protecting device 0~50.0mm;
        HY-3D-57 start-up valve monitoring and protecting device 0~50.0mm;
        HY-3D-58 liquid level monitoring and protecting device 0~800mm;
2. Input signal: reciprocating cylinder: TD-1 reciprocating cylinder sensor signal;
        Heat expansion: TD-2 reciprocating cylinder sensor signal;
        Reciprocating cylinder: UT-81 reciprocating cylinder sensor signal;
        Synchronizer, valve position, power limiter, start-up valve: TDZ-1 sensor signal;
        Liquid level: UHZ-54 magnetic upset ball liquid level sensor signal;
3. Measurement accuracy:0.5,linear error≤±0.5％;
4. Display model: LED display or LCD display;
5. Signal output: 
        a. currency output: 4～20mA (in full scale range, resistance≤850Ω);
        b. RS485 signal output;
        c. On-off output: two on-off output for each channel (AC250V/5A, DC27V/2A);
6. Environmental temperature:-15℃~65℃(relative humidity≤80％);
7. Input voltage: AC 85V～265V or DC 120V～370V;
8. Installation: in panel or local protecting box
        Overall size: 160×80×200(mm);
        Hole dimension:152×76 (mm);