Zdx-n shaft vibration monitor

Zdx-n shaft vibration monitoring and protection instrument

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Zdx-n shaft vibration monitor is a precision measurement and control instrument equipped with yh-do eddy current sensor, which can measure and monitor the radial vibration of the main shaft or rotor of rotating machinery such as steam turbine and fan. It has alarm and shutdown control signal output and general interface for current output, which can be connected with computer, DCS, PLC system, paperless recorder and other equipment. LED digital display, PVC color mask and light touch key, beautiful appearance, novel style, reasonable structure, simple installation, stable performance, reliable quality and accurate measurement.

Main functions

Monitoring and protection of radial vibration of shaft of rotating machinery such as steam turbine, water turbine, compressor and blower.

Function Description:

1. Display function

The vibration measurement value, I value alarm and II value alarm setting value can be displayed on the LED nixie tube respectively.

2. Alarm function

When the vibration amplitude exceeds the set value of alarm or shutdown, the alarm or shutdown indicator is on, and the switch signal is output on the rear panel to protect the monitored equipment.

3. Alarm delay time setting function

The adjustment range of alarm delay time is 0 ~ 3 seconds to prevent false alarm caused by on-site interference.

4. Self diagnosis function

Any fault of input system, such as probe wear, poor contact or broken wire, can be detected, and power failure alarm and shutdown can be given at the same time.

It has the functions of power on and power off detection, and turns off the alarm and shutdown output circuit at the same time, which can effectively inhibit the false alarm of the monitor.

5. Output interface

It is equipped with current output interface, which can be connected with computer, DCS, PLC system, paperless recorder and other equipment.

Technical parameters:

1. Input signal: yh-do eddy current sensor system, frequency response: 0 ~ 5KHz

2. Display mode: three and a half led nixie tube display, accuracy: ± 0.5%

3. Measurement range: 0 ~ 500um

4. Current output: 4 ~ 20mA, load ≤ 500 Ω

5. Power output: - 24VDC

6. Alarm contact capacity: AC220V / 3a, dc28v / 3A

7. Working environment: temperature: 0 ~ 55 ℃, relative humidity: ≤ 95%

8. Working power supply: AC 220VAC ± 10% 50Hz power consumption ≤ 10W

9. Installation method: disc

10. Overall size: 160 (width) × 80 (high) × 250 (deep) mm

11. Opening size: 152 (width) × 75 (height) mm

Ordering Guide:

1. Zdx-n shaft vibration monitor is equipped with yh-do eddy current displacement sensor.

2. Model selection code:

ZDX-N—A□□—B□□—C□□—D□□—E□□

8200/021/022—A□□—B□□—C□□—D□□—E□□

Range selection a □□:

0 1—— 0～100um

0 2—— 0～200um

0 3—— 0～500um

Current output B □□:

0 1——4～20mA

0 2——0～10mA

Sensor selection C □□ (yh-do eddy current sensor):

0 1——  Ф 8mm sensor

0 2——  Ф 11mm sensor

Alarm delay D □□:

0 1 -- 0.1 second

0 2 - 1 second

0-3 seconds