HY-3500 steam turbine monitoring and protecting device is high reliability, full digitized, and modularized, combined device. It is indispensable device used for inspecting steam turbine running condition. It is combined by modules of vibration, speed, axial displacement, eccentricity, heat expansion, reciprocating cylinder, oil level in oil tank and oil temperature. Customer can choose channel amount, channel content, single or double channel according to their requirement. It can provide many parameters measuring for turbine safe running and predicting for turbine condition. It is easy to install and maintain, simple to operate, high reliability.

Features:
1. Modularized designed, customer can combine several inspecting systems according to requirement, good expansibility;
2. High intelligentized, all parameters can be set and reviewed on the screen buttons
3. Every channel has its own stable power module, no interferer within channels.
4. There are independent microprocessor and high precision A/D and D/A conversion circuit in every channel, so, for each channel, it can work as single channel or double channel.
5. Every channel can output 4-20mA current analog output, an independent secondary alarm on-off output;
6. Auto memorize and review maximum value of detected;
7. Suitable for on-line monitoring for a long term, easy to install and commissioning, no site maintenance is required.
8. Password protection for parameters configuration.
9. Each channel has real time TDM signals output.

1. Highly Intelligent, all parameters can be set on a control panel.
2. Suitable for on-line monitoring for a long time, easy to install and debug, needing no site maintenance
3. With
modular structure, each module has a microprocessor, the system can be
estabilished by any combination, the system reliability is improved.
4. Each module has a 2rd level alarm switch.
5. 4～20mA current analog output.
6. Real time TDM signals output.
7. Free configurations of measuring range, alarm and danger value.
8. can memorize and display maximum

1. Measuring range: 
        Vibration range
                amplitude:0～500μm（P-P value）;
                severity :0～50.0mm/s（RMS）;
        Axial displacement range 
                -1.00～1.00mm(used with CWY-DO-Φ8 proximity sensors)
                -2.00～2.00mm(used with CWY-DO-Φ11 proximity sensors)
        Differential expansion measuring range
                -3.00～5.00mm(used with CWY-DO-Φ18 proximity sensors)
                -4.00～6.00mm(used with CWY-DO-Φ25 proximity sensors)
        Displacement range(reciprocating cylinder, heat expansion, power limiter, synchronizer, activated valve, oil level)
                reciprocating cylinder: 0～150mm, 0～200mm, 0～250mm
                heat expansion: 0～35mm
                power limiter, synchronizer, activated valve: 0～25mm
                oil level: -200～200mm, -300～300mm, -400～400mm
        Speed range
                0～9999rpm
        temperature(set according to temperature sensor)
                0～400℃
2. Measurement accuracy: 0.5%,linear error≤±0.5％;
3. Display model: LED display or LCD display;
4. Signal output:
        a. Currency output: 4～20mA (in full scale range, resistance≤850Ω);
        b. TDM real time signal output or PULSE signal output;
        c. RS485 communication interface;
        d. On-off output: two on-off outputs for each channel;
5. Environmental temperature: -15℃~65℃ (relative humidity≤80％);
6. Supply voltage: AC 85V～265V or DC 120V～370V;
7. Installation: in panel or local protecting box. It is according to requirement of customer, we can supply local device box with glass door and window.
Overall size:(40.0× device position＋58mm)×176.5mm×260mm(length×width×depth);
Hole dimension:(40.0× device position＋27mm)×176.5mm (length×width);